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Articoli di riviste sul tema "Fruits rouges"
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Nau, Jean-Yves. "Des vins rouges et des fruits de la mer". Revue Médicale Suisse 5, n. 225 (2009): 2299. http://dx.doi.org/10.53738/revmed.2009.5.225.2299.
Testo completo
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Tancos, Matthew A., Laura Chalupowicz, Isaac Barash, Shulamit Manulis-Sasson e Christine D. Smart. "Tomato Fruit and Seed Colonization by Clavibacter michiganensis subsp. michiganensis through External and Internal Routes". Applied and Environmental Microbiology 79, n. 22 (6 settembre 2013): 6948–57. http://dx.doi.org/10.1128/aem.02495-13.
Testo completoAbstract (sommario):
ABSTRACTThe Gram-positive bacteriumClavibacter michiganensissubsp.michiganensis, causal agent of bacterial wilt and canker of tomato, is an economically devastating pathogen that inflicts considerable damage throughout all major tomato-producing regions. Annual outbreaks continue to occur in New York, whereC. michiganensissubsp.michiganensisspreads via infected transplants, trellising stakes, tools, and/or soil. Globally, new outbreaks can be accompanied by the introduction of contaminated seed stock; however, the route of seed infection, especially the role of fruit lesions, remains undefined. In order to investigate the modes of seed infection, New YorkC. michiganensissubsp.michiganensisfield strains were stably transformed with a gene encoding enhanced green fluorescent protein (eGFP). A constitutively eGFP-expressing virulentC. michiganensissubsp.michiganensisisolate, GCMM-22, was used to demonstrate thatC. michiganensissubsp.michiganensiscould not only access seeds systemically through the xylem but also externally through tomato fruit lesions, which harbored high intra- and intercellular populations. Active movement and expansion of bacteria into the fruit mesocarp and nearby xylem vessels followed, once the fruits began to ripen. These results highlight the ability ofC. michiganensissubsp.michiganensisto invade tomato fruits and seeds through multiple entry routes.
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Picha, David H., e Roger A. Hinson. "TRANSPORTATION ROUTES FOR LATIN AMERICAN PRODUCE IMPORTS INTO THE UNITED STATES". HortScience 27, n. 6 (giugno 1992): 609a—609. http://dx.doi.org/10.21273/hortsci.27.6.609a.
Testo completoAbstract (sommario):
The origin and distribution of counter-seasonal fresh fruit and vegetable imports from Latin America into the U.S. was evaluated. Infrastructure comparisons were made among various U.S. ports of entry capable of receiving perishables. Economic comparisons were made utilizing different transportation routes. Market boundary analyses indicated significant cost savings would result from changing existing transportation routes to certain final U.S. destinations. Currently the port of Philadelphia receives the majority of South American fruit which is mostly shipped break bulk or palletized. South Florida ports (Miami and Port Everglades) receive the majority of Central American and Caribbean fruits and vegetables which are mostly shipped containerized. Interest exists among Latin American exporters to diversify their U.S. ports of entry in order to avoid distribution bottlenecks. Future trade routes will likely see an increased utilization of more economical U.S. Gulf of Mexico ports.
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Arya, Dhaneshvari, Akhilesh Kumar Pal, Anand Kumar Singh, Bajrang Kumar e Avneesh Rathour. "Studies of Correlation and Path Coefficients for Tomato Yield and Quality Attributes (Solanum lycopersicum L.)". International Journal of Environment and Climate Change 13, n. 10 (16 agosto 2023): 381–88. http://dx.doi.org/10.9734/ijecc/2023/v13i102650.
Testo completoAbstract (sommario):
Fifteen genotypes of tomatoes (Solanum lycopersicum L.) with 18 yield contributing traits, were studied for correlations and path coefficients. The experiment has been done at Vegetable Research Farm of Department of Horticulture, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005, during Rabi season of 2020-21. The experiment was laid under Randomized Block Design with three replications. Using genotypic correlation, it has been found that the fruit yield per plant significantly positively correlates with lycopene, titrable acidity, pericarp thickness, fruits per plant, ascorbic acid and days to 50% flowering. This indicates that the selection of these qualities will impact the number of fruits produced by each plant. Yield per plant was showed the significant positive direct effects with ascorbic acid, pericarp thickness, firmness, fruit yield per plant, TSS, locules per fruit, number of fruits per plant, fruit diameter, lycopene content, seed test weight and days to 50% flowering at the genotypic path coefficient level that indicated the selection for these traits might be effective and there is a possibility of improving yield per plant through selection based on these characters. The investigation contains the necessary information to support the objectives, as shown by the residual influence at the genotypic (0.198) and phenotypic (0.206) routes.
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Guo, Xuan, Jinru Chen, Robert E. Brackett e Larry R. Beuchat. "Survival of Salmonellae on and in Tomato Plants from the Time of Inoculation at Flowering and Early Stages of Fruit Development through Fruit Ripening". Applied and Environmental Microbiology 67, n. 10 (1 ottobre 2001): 4760–64. http://dx.doi.org/10.1128/aem.67.10.4760-4764.2001.
Testo completoAbstract (sommario):
ABSTRACT The fate of salmonellae applied to tomato plants was investigated. Five Salmonella serotypes were used to inoculate tomato plants before and after fruits set, either by injecting stems with inoculum or brushing flowers with it. Ripe tomato fruits were subjected to microbiological analysis. Peptone wash water, homogenates of stem scar tissues, and homogenates of fruit pulp were serially diluted and plated on bismuth sulfite agar before and after enrichment. Presumptive Salmonella colonies were confirmed by serological tests, PCR assay using HILA2 primers, and enterobacterial repetitive intergenic consensus PCR. Of 30 tomatoes harvested from inoculated plants, 11 (37%) were positive forSalmonella. Of the Salmonella-positive tomatoes, 43 and 40%, respectively, were from plants receiving stem inoculation before and after flower set. Two of eight tomatoes produced from inoculated flowers contained Salmonella. Higher percentages of surface (82%) and stem scar tissue (73%) samples, compared to pulp of Salmonella-positive tomatoes (55%), harbored the pathogen. Of the five serotypes in the inoculum, Montevideo was the most persistent, being isolated from tomatoes 49 days after inoculation, and Poona was the most dominant, being present in 5 of 11 Salmonella-positive tomatoes. Results suggest that Salmonella cells survive in or on tomato fruits from the time of inoculation at flowering through fruit ripening. Tomato stems and flowers are possible sites at whichSalmonella may attach and remain viable during fruit development, thus serving as routes or reservoirs for contaminating ripened fruit.
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R. Benmehia, H. Bendif,, e F. Bahlouli, S. Tellache, A. Slamani A. Zedam. "Contribution to the study of some aspects of pollination in six varieties of apricot in the region of M'sila (Algeria)". Journal of Scientific Agriculture 1 (29 dicembre 2017): 347. http://dx.doi.org/10.25081/jsa.2017.v1.886.
Testo completoAbstract (sommario):
The present work consists in contributing to the study of pollination. Field observations and tests were carried out on six varieties of apricot in the region of M'sila, "Pavit", "Boulida" "Alarbi","Tounsi","Ben sarmouk" and "Louzi rouge". For natural self-pollination, the branches were covered to avoid cross-pollination, and the fruit set was determined. Controlled pollination was carried out using pollen and pollen from the other trees that bloom at about the same time. The fruit set rate was determined after counting the fruits in relation to the number of blooming flowers. The rate of fruit set varies from one variety to another. Alarbi with 62.5%, Louzi with 69.7%, Tounssi with 56.5%, Bulida with 50.7%, Ben Sermouk with 23.2% and Pavit with 45.8%. The bagging rate of the bagged branch obtained at the end of the physiological fall did not show any significant differences between the varieties and ranged between 77.50% for Alarbi and 41.22% for Pavit. The results show that the number of fruits after manual crossing is zero for all crops. All varieties tested are self-compatible and no cross-compatibility group has been guessed on the tested growths, from self-pollination and inter-pollination.
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Dakshta Arora & Prof. Anjana Das. "Roots, Routes and Fruits: Feminism and Ecofeminism". Creative Saplings 1, n. 12 (26 marzo 2023): 1–13. http://dx.doi.org/10.56062/gtrs.2023.1.12.227.
Testo completoAbstract (sommario):
Ecofeminism is the missing link that connects woman and nature, while tracing out the patriarchal structures of exploitation and oppression. This paper searches for the origination of ‘Ecofeminism’ that lies somewhere in the fusion of ‘Feminism’ and ‘Ecology.’ While defining the concept of ‘Feminism’, it explores its different forms along with its chronological order through wave metaphor. Feminism nurtures the sapling of Ecofeminism, and with the passage of time, it turns into a tree that bears fruits of the various forms which can be viewed through different perspectives. It presents roots, routes and fruits that come out of ‘Feminism’ and ‘Ecofeminism.’ Knowing nature leads to knowing woman, and knowing woman, leads to knowing nature. The real emancipation lies in saving the earth and woman from exploitation and oppression.
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Panayotov, Nikolay, e Dochka Dimova. "Assessment of yield and yield stability of new perspective pepper breeding lines with conical shape". Genetika 46, n. 1 (2014): 19–26. http://dx.doi.org/10.2298/gensr1401019p.
Testo completoAbstract (sommario):
The main goal of the present study was to estimate new perspective Bulgarian conic lines pepper about yield and stability of the yield with purpose to be presented for Government variety testing and to been included in new breeding programs. Three years experiments were carried out in Experimental fields of Agricultural University, Plovdiv, Bulgaria with eight new perspective consolidated hybrids of sweet pepper. Typical Bulgarian variety Kurtovska kapia 1619 was used as a standard. The plants were grown according to the conventional technology for middle early field production for South Bulgarian condition. Four harvests were done - one of green fruits and three of red ripening fruits. The total yield, weight and length of fruit were determined. The stability of yield (Ysi) by the methods Kang was calculated. The lines with the highest yield were Doux Marconi Rouge ? Kapia 1300 F8 and Doux Marconi San Semences ? Kalinkov 800/7 F7 with productivity of 5034.1 kg/da and 4881.3 kg/da respectively. The index of yield stability was highest 7+ about following breeding lines Doux Marconi San Semences ? Kalinkov 800/7 F7 and Kapia 1300 ? Doux d?Espagne F9. The lines Doux Marconi Rouge ? Kapia 1300 F8, Doux Marconi San Semences ? Kalinkov 800/7 F7 and Doux Marconi Rouge ? Kapia 1300 F7 are suitable to be included in new selection programs for more successfully breeding.
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Bonnin, Estelle, e Marc Lahaye. "Contribution of cell wall modifying enzymes on the texture of fleshy fruits: The example of apple". Journal of the Serbian Chemical Society 78, n. 3 (2013): 417–27. http://dx.doi.org/10.2298/jsc121123004b.
Testo completoAbstract (sommario):
Cell walls consist of polysaccharide assemblies (pectin, hemicelluloses and cellulose), whose structure and interactions vary depending on fruit genetic, and its stage and conditions of development. The establishment and the structural reorganization of the assemblies result from enzyme/protein consortia acting in muro. The texture of fleshy fruits is one of the major criteria for consumer choice. It impacts also post-harvest routes and transformation processes. Disassembly of fruit cell wall polysaccharides largely induces textural changes during ripening but the precise role of each polysaccharide and each enzyme remains unclear. The changes of cell wall polysaccharides during fruit ripening have mainly emphasized a modulation of the fine chemical structure of pectins by hydrolases, lyases, and esterases. This restructuring also involves a reorganization of hemicelluloses by hydrolases/transglycosydases and a modulation of their interactions with the cellulose by non-catalytic proteins such as expansin. Apple is the third fruit production in the world and is the subject of studies about fruit quality. This paper presents some of the results to date about the enzymes/proteins involved in this fruit ripening with a particular emphasis on apple.
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Souza, J. N. C., N. D. R. Almeida, L. S. Silva e M. C. C. L. Moura. "Genetic diversity and geographic mapping of mango in Maranhão". Scientific Electronic Archives 13, n. 5 (29 aprile 2020): 13. http://dx.doi.org/10.36560/1352020922.
Testo completoAbstract (sommario):
The objective of this study was to map the routes of greater natural occurrence of the mango tree, through the geographic descriptors and to characterize mango accesses in Maranhão. Field trips for the collection of geographic data and fruit harvesting were carried out in the municipalities of Chapadinha, Caxias, Brejo and Matinha, MA in the year 2013. Qualitative biometric studies were conducted to characterize the accesses collected regarding the color of the fruit peel (TFC), fruit pulp color (CPF), firmness (Fir), fruit shape (FF), fruit peel adhesion (ACF), fruit aroma (FF), fruit DF), fruit succulence and embryo (EB).The model of partial distribution of the mango in Maranhão was generated in the Open Modeller program based on the methodology using the algorithm SVM. Three groups were formed by the Tocher grouping method.The accesses of sugar and milk mango were the most similar, while the greatest genetic distance was between the accesses of mango sugar and mango. In the geographic map it was verified that there are areas with high probability of natural occurrence of mango in Maranhão. It was verified that there is genetic variability in the mango accesses collected in Maranhão with desirable agronomic characteristics and sweet fruits, thus contributing to reduce the species' vulnerability that currently exists in large areas of monoclonal crops.
Tesi sul tema "Fruits rouges"
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Talavera, Séverine. "Étude de la biodisponibilité d'anthocyanosides issus de fruits rouges". Clermont-Ferrand 1, 2005. http://www.theses.fr/2005CLF1PP02.
Testo completo
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Senez, Julien. "Méthodologies analytiques appliquées au contrôle qualité de jus concentrés de fruits rouges". Lyon 1, 2003. http://www.theses.fr/2003LYO10116.
Testo completoAbstract (sommario):
De nombreux produits sont susceptibles d'être ajoutés à des jus concentrés de framboise, de fraise et de cassis. Les motivations régissant ces pratiques peuvent être de deux ordres. En effet, si certaines additions sont réalisées, pour des raisons économiques, dans un propos d'adultération, certains ajouts peuvent être effectués légalement, sous certaines conditions. Il est donc impératif d'élaborer des méthodologies aptes à caractériser tous les produits pouvant potentiellement être ajoutés. Dans ce travail, nous avons dans une première partie présenté les principales familles chimiques composant ces matrices, ainsi que leurs intérêts analytiques dans la détection d'éventuelles fraudes et qu'un rappel des techniques analytiques usuelles. Dans une deuxième partie, nous avons présenté un rappel bibliographique des méthodologies appliquées au contrôle qualité de différents produits issus du monde végétal et, particulièrement, pour des jus de fruit. La troisième partie a porté sur l'élaboration de méthodologies permettant de mettre en évidence la présence, dans des jus concentrés de framboise, de fraise et de cassis, de sirops de sucre (sirops de glucose, sirops de sucre de pomme, sirops de sucre de poire et sirops de sucre de myrtille), de minéraux (potassium, magnésium et calcium) et d'acides organiques (acides malique et citrique) exogènes, de jus concentré de citron et de colorants (jus concentré de sureau et d'aronia).
3
Gammacurta, Marine. "Approches sensorielle et analytique de l'arôme fruité des vins rouges : infuence relative des levures et des bactéries lactiques". Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0353/document.
Testo completoAbstract (sommario):
Les fermentations alcoolique (FA) et malolactique (FML) sont deux étapes importantes de la vinification en rouge dans l’établissement de l’arôme fruité des vins. Afin d’étudier l’importance relative des microorganismes fermentaires, nous étudions l’influence de six couples levures/bactéries lactiques (BL) - trois souches de levures, deux de BL - sur la modulation des notes fruitées de différents vins rouges de Bordeaux. Une première approche analytique montre l’influence prédominante de la souche de levures sur la concentration de plus de 70 marqueurs potentiels de la note fruitée. L’étude particulière des esters montre que l’effet levures observé dès la fin de la FA persiste au cours du temps malgré la FML et les modifications engendrées par le vieillissement du vin. L’étude sensorielle conforte l’influence majeure des levures sur la modulation de l’arôme fruité des vins rouges à différents temps d’élevage. Néanmoins, les résultats obtenus suggèrent l’implication d’autres composés aromatiques dans la modulation de la note fruitée des vins, non quantifiés dans la première partie de cette étude. Un travail de fractionnement d’extraits de vin par HPLC permet par la suite l’identification d’une fraction d’intérêt impliquée dans des variations aromatiques liées à la souche de levures. L’analyse de cette fraction par chromatographie en phase gazeuse n’a pas permis d’identifier le ou les composés impliqués. Nous avons néanmoins mis en évidence une thiophénone qui pourrait agir en tant que masque de l’arôme fruité, ainsi qu’un ester hydroxylé qui pourrait s’avérer être un marqueur intéressant de l’activité bactérienne et dont l’effet exhausteur de notes fruitées est également envisagé comme perspectivesAlcoholic (AF) and malolactic (MLF) fermentations are important steps in red winemaking for the revelation of wine fruity aroma. To investigate the relative importance of fermentative microorganisms, we studied the influence of six yeasts/lactic acid bacteria (LAB) combination - three yeast strains, two LAB - on Bordeaux red wines fruity notes modulation. A first analytical approach showed the predominant influence of yeast strain on the concentration of more than 70 potential fruity note markers. Special study of esters showed a yeast strain effect since the end of FA that persists over time, despite MLF and changes caused by wine aging. Sensory studies also highlighted the major influence of yeasts on red wines fruity aroma modulations at different aging steps. Nevertheless, results suggested the role of other aromatic compounds in fruity note modulation, not quantified in the first part of this study. The study of fractions made by HPLC with wine organic extracts enables the identification of an interested fraction involved in aromatic variations related to the yeast strain. Analysis of this fraction by gas chromatography has not allowed identifying compounds involved in these organoleptic variations. However, we highlighted a thiophenone that could act as a mask of fruity aroma and a hydroxylated ester that could be an interesting marker of bacterial activity. Its role as enhancer of fruity esters aroma is also considered
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Haddaoui, Asmaa. "Dégradation des pigments anthocyaniques des jus de fruits rouges par les activités [Bêta]-glycosidasiques présentés dans les préparations pectinolytiques industrielles d'origine fongique". Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL151N.
Testo completoAbstract (sommario):
Ce travail est une contribution à l'étude de la dégradation enzymatique des pigments anthocyaniques de jus de fruits rouges par différentes préparations pectinolytiques industrielles d'Aspergillus niger. Cette dégradation est due à la présence d'activités secondaires de type glycosidasique: [Bêta]-glucosidases, [Bêta]-galactosidases, [Alpha]-rhamnosidases et [Alpha]-arabinosidases. L'hydrolyse des sucres en position 3 et/ou 5 conduit à la libération de l'anthocyanidine, molécule instable, qui se scinde via la forme chalcone en dérivés du benzaldéhyde et de l'acide benzoïque issus des noyaux A et B de l'aglycone, une étude systématique par HPLC de la décoloration enzymatique de différents pigments anthocyaniques a permis d'établir leur schéma de dégradation en montrant notamment que l'hydrolyse des anthocyanes diglycosylées en 3 ou en 3 et 5 s'effectue de façon séquencée par des [Bêta]-glycosidases spécifiques. Par chromatographie d'interaction ionique et hydrophobe, une fraction protéique enrichie en activités anthocyanasiques a été isolée. La détermination des caractéristiques cinétiques (Km, Vmax), montre que les [Bêta]-glucosidases et les [Bêta]-galactosidases ont une affinité légèrement supérieure pour les dérivés glycosylés de la cyanidine comparativement à ceux de la malvidine. Ces activités anthocyanasiques sont fortement inhibées par la [Delta]-gluconalactone et la [Delta]-galactonolactone mais faiblement par le glucose et le galactose
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Davidson, Morag. "Éco-extraction de composés bioactifs à partir de marcs de fruits rouges & étude de leur impact sur l'homéostasie intestinale". Electronic Thesis or Diss., Limoges, 2024. http://www.theses.fr/2024LIMO0020.
Testo completoAbstract (sommario):
Depuis 2010, 100 millions de tonnes de fruits rouges sont produits chaque année dans le monde. 20% de déchets résultent de leur 1ère transformation industrielle, comprenant les graines et les peaux, appelés marcs. L’épandage et l’alimentation animale constituent leurs principales voies de valorisation, alors qu’ils peuvent être une source potentielle de composés bioactifs hydrophiles (fibres, protéines, polyphénols, oligo-éléments) et lipophiles (acides gras polyinsaturés, phytostérols, tocols). Par conséquent, il devient intéressant de concevoir des procédés d’extraction simultanée de l’ensemble de ces biomolécules pour exploiter pleinement les activités biologiques qui leurs sont associées.Le travail de cette thèse s'est fixé deux objectifs majeurs. Tout d'abord, développer un procédé d'éco-extraction innovant, combinant l’utilisation d’enzymes et d’ultrasons pour extraire, simultanément et en milieu aqueux, les composés hydrophiles et lipophiles des marcs de fruits rouges. Ensuite, évaluer in vitro les propriétés prébiotiques des extraits obtenus.Les différents travaux de la thèse se sont articulés autour de quatre phases successives : (i) la caractérisation chimique des marcs de framboise, de fraise, de mûre et de cassis, (ii) le développement du ou des procédé(s) d’éco-extraction, (iii) la caractérisation chimique globale des « éco-extraits » obtenus et (iv) l’évaluation in vitro de leur activité prébiotique potentielle.Le développement du procédé d’éco-extraction des composés d’intérêt à partir des quatre marcs de fruits s’est déroulé en trois étapes. Tout d'abord, trois enzymes (un mélange de glycohydrolases, une protéase acide et une protéase alcaline) ont été testées seules ou combinées séquentiellement. Ensuite, les systèmes enzymatiques sélectionnés ont été associés à des ultrasons, soit simultanément (enzyme + ultrasons) soit de manière séquentielle (enzyme → ultrasons ou ultrasons → enzyme). Le choix des systèmes enzymatiques et de leurs combinaisons avec les ultrasons s'est basé sur leur efficacité, leur facilité d'utilisation et leur caractère novateur par rapport aux travaux existants. Enfin, les combinaisons retenues ont été optimisées à l'aide d'un plan d'expérience (Definitive Screening Design) en ajustant six paramètres comprenant chacun trois niveaux : amplitude des ultrasons, pH, ratio enzyme/substrat, ratio solide/liquide, durée et température.La combinaison simultanée « protéase alcaline-ultrasons » a été retenue et optimisée pour les marcs de framboise, de fraise et de mûre. Elle a permis d’extraire, dans un solvant aqueux et en une seule étape, la totalité de leurs composés phénoliques, ayant préservé 75% de leur capacité antioxydante, ainsi que 75% de l’huile présente dans ces marcs. Concernant le marc de cassis, la combinaison simultanée « protéase acide-ultrasons » optimisée a permis l’extraction de 75% des polyphénols totaux (dont la totalité des anthocyanes), ainsi que 50% de l’huile.Les extraits obtenus ont également démontré des propriétés prébiotiques, favorisant la croissance de bactéries probiotiques (Lactobacillus plantarum 299v, Lactobacillus rhamnosus), les positionnant comme des candidats potentiels pour l'industrie nutraceutique. Ils pourraient être intégrés dans des compléments alimentaires visant à maintenir ou rétablir l'équilibre du microbiote intestinalSince 2010, 100 million tons of red fruits have been produced globally each year. 20% of wastes result from their first industrial transformation, which includes the seeds and the skins, known as pomace. While spreading and animal feeding are common ways to valorise these wastes, they are also a potential source of hydrophilic and lipophilic bioactive compounds (fibres, proteins, polyphenols, minerals & poly-unsaturated fatty acids, phytosterols, tocols). Therefore, it is interesting to design simultaneous extraction processes to extract simultaneously all of these biomolecules to fully exploit their biological activities.This thesis aimed to achieve two goals. The first goal was to develop an innovative extraction process by combining the use of an enzyme(s) with the use of ultrasounds to extract simultaneously, in an aqueous medium, the hydrophilic and lipophilic bioactive compounds of red fruit pomaces. The second goal was to assess in vitro the prebiotic properties of the extracts.The thesis was divided into four successive steps: (i) the characterisation of the proximate compositions of the raspberry, strawberry, blackberry and black currant pomaces, (ii) the design of one or several eco-extraction process(es), (iii) the global chemical characterization of the “eco-extracts” and (iv) the in vitro assessment of their potential prebiotic properties.The design of the eco-extraction process was divided into three steps. First, three enzymes (a cocktail of glycohydrolases, an acid protease and an alkaline protease) were tested, alone or sequentially combined. Secondly, the selected enzymatic systems were associated with ultrasounds, either simultaneously (enzyme + ultrasounds) or sequentially (enzyme → ultrasounds and ultrasounds → enzyme). The choice of the enzymatic system(s) and their combination with ultrasounds was based on their extraction efficiencies, ease of implementation and innovative character compared to existing literature. Finally, the selected combination(s) were optimised by an experimental design (Definitive Screening Design) by adjusting six parameters comprising three levels: ultrasound amplitude, pH, enzyme/substrate ratio, solid/liquid ratio, extraction time and temperature.The simultaneous combination “alkaline protease-ultrasounds” was selected and optimised for the raspberry, strawberry and blackberry pomaces. All of the polyphenols, with 75% of their antioxidant capacities, and 75% of the oil present in the pomaces were extracted in a single step in an aqueous medium. The optimised simultaneous combination “acid protease-ultrasounds” extracted 75% of the polyphenols, with the totality of the anthocyanins, and 50% of the oil of the black currant pomace.The eco-extracts demonstrated prebiotic properties towards probiotic bacteria (Lactobacillus plantarum 299v, Lactobacillus rhamnosus) by favouring their growth. This makes them potential candidates for the nutraceutical industry. The eco-extracts could be integrated into dietary complements to maintain or restore the intestinal microbiota balance
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Dandache, Israa. "Evaluation et caractérisation des effets anticancéreux de fruits rouges riches en polyphenols dans des modèles de cancer colorectal et de leucémie lymphoïde chronique". Thesis, Strasbourg, 2013. http://www.theses.fr/2013STRAJ037.
Testo completoAbstract (sommario):
L’évaluation de l’effet cytotoxique de différents jus de fruits naturellement riches en polyphénols vis-à-vis de quatre lignées de cancer colorectal a montré que le jus de la canneberge est particulièrement actif. En effet, les polyphénols de la canneberge induisent l’apoptose associée à une surexpression des deux facteurs de transcription pro-apoptotiques p73 et FOXO3a. Cette mort programmée est aussi associée à une diminution de l’expression de SIRT1 le déacétylateur de protéines non histone telles que p73, KU70, ou FOXO. D’autres événements précoces comme la production de ROS et les dommages à l’ADN connus pour réguler l’expression de SIRT1 ont été confirmés. Une deuxième étude avait pour objectif de valider le potentiel anticancéreux in vivo chez la souris Balb/C injectée de cellules d’adénocarcinome colique murin. Pour cela nous avons choisi le jus d’aronie noire qui a montré in vitro un profil de cytotoxicité intéressant. L’analyse des tumeurs a montré que l’administration de jus d’aronie entraine une réduction de la prolifération des cellules tumorales. Enfin, l’augmentation significative de la mobilité de LC3 suggère l’activation d’une mort cellulaire autophagique. Afin d’évaluer l’utilisation clinique des polyphénols, nous avons évalué les effets cytotoxiques des polyphénols de myrtille sur des lymphocytes, de patients atteints de LLC. Nos résultats montrent que l’extrait polyphénolique induit une apoptose dépendante du stress oxydant et impliquant aussi des protéines pro-apoptotiques dans des cellules de patients atteints de LLC mais pas dans les cellules de sujets sainsThe evaluation of the cytotoxic effect of different fruit juices, naturally rich in polyphenols, on four different colorectal cancer cell lines proved that cranberry juice was the most active. Indeed, cranberry polyphenols induce apoptosis associated with the overexpression of two important proapoptotic transcription factors, p73 and FOXO3a on one hand. Furthermore, it has been also correlated with a decrease in the expression of SIRT1, the deacetylase of several non-histone proteins such as p73, KU70 and FOXO. Other early events such as ROS production and DNA damage, which are known to regulate the expression of SIRT1 were confirmed. The second study aims at validating the potential anticancer effects in an in vivo model of colorectal cancer in BALB/c mice injected subcutaneously of murine colon adenocarcinoma cells. Accordingly, we chose the black chokeberry juice, which showed an interesting cytotoxic profile in vitro. The analysis of tumors demonstrated that the administration of chokeberry juice leads to a reduction in tumor cell proliferation. Finally, the significant increase in the mobility of LC3 suggests the activation of autophagic cell death. To validate the clinical use of polyphenols, we evaluated the cytotoxic effects of blueberry polyphenols on lymphocytes of CLL patients. Our results show that the polyphenolic extract induces an oxidative stress-dependent apoptosis that involve various pro-apoptotic proteins in cells of patients with CLL but not in healthy subjects
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Piombino, Paola. "Contribution à la connaissance de la nature des composés volatils responsables des odeurs de fruits rouges de l'arôme du vin, par des méthodes sensorielles et instrumentales". Dijon, 2003. http://www.theses.fr/2003DIJOS008.
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Boissenot, Eric. "Incidences du climat, des sols et du comportement de la vigne sur les caractères analytiques et organoleptiques des vins rouges du Haut-Médoc : relation avec la maturation du raisin". Bordeaux 2, 1997. http://www.theses.fr/1997BOR20543.
Testo completoAbstract (sommario):
Indépendamment de la nature géologique de la roche-mère dans laquelle se sont formés les sols, cette étude a montré que les conditions favorables à l'obtention de vins de Cabernet Sauvignon de qualité sont liées à une alimentation en eau non excessive pendant le cycle végétatif de la vigne. Lorsque l'alimentation en eau de la plante est forte (en particulier entre la floraison et la véraison), sur les sols graveleux siliceux comme sur les sols argileux carbonatés, les vins produits sont de moins bonne qualité organoleptique : ils sont moins riches en tanins et présentent un caractère végétal lié à la présence de méthoxypyrazines. La quantité totale de tanins dans les pellicules est peu modifiée par les conditions de l'alimentation en eau ; mais le volume des baies beaucoup plus important chez les vignes fortement alimentées en eau constitue un facteur explicatif de la moindre richesse en tanins (dilution) des vins. Des teneurs élevées en méthoxypyrazines ne semblent pas dues à la nature particulière de la roche-mère mais à la vigueur de la plante conférée par un alimentation en eau importante. Les conditions d'une forte alimentation en eau, tant dans les sols graveleux que dans les sols argileux, sont liées à la présence d'eau facilement utilisable par les racines (frange capillaire d'une nappe d'eau). D'une manière générale et indépendamment de l'alimentation en eau de la vigne, sur les sols argileux carbonatés, le Cabernet Sauvignon produit des vins moins aromatiques, plus rouges (pH bas) et dont la sensation tannique en bouche (tanins astringents) est plus importante que sur les sols graveleux, le Merlot peut produite des vins de bonne qualité dans des sols de textures diverses : sols graveleux, sols sablo-argileux à soubassement argileux, sols argileux carbonatés. Contrairement au Cabernet Sauvignon, une forte alimentation en eau de la vigne (nappe d'eau permanente) semble moins affecter la qualité des vins de Merlot dans des conditions de faibles production. Pour les mêmes raisons que pour le Cabernet Sauvignon, les vins sont, dans ce cas, moins riches en composés phénoliques mais ils ne présentent pas, à la dégustation, de caractères végétaux ou herbacés perceptibles. Cette étude a montré que l'utilisation de la microvinification était tout à fait appropriée pour la comparaison des caractères analytiques et organoleptiques des vins.
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Allamy, Lucile. "Recherches sur les marqueurs moléculaires de l’arôme de « fruits cuits » des raisins et des vins rouges issus des cépages Merlot et Cabernet-Sauvignon : Approches sensorielle, analytique et agronomique". Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0362/document.
Testo completoAbstract (sommario):
Depuis les années 2000, les odeurs de fruits cuits, évoquant le pruneau, la figue, ou encore la pêche cuite sont de plus en plus fréquemment retrouvées dans les vins rouges de la région bordelaise. Les marqueurs responsables de ces nuances associés à l’état de maturité des raisins sont inconnus. Dans un premier temps, nous montrons que ces nuances, qui étaient jadis très rarement rencontrées dans les vins d’une appellation que nous avons appelée A, figurent aujourd’hui parmi les arômes considérés comme typiques de ces vins. Cependant, les dégustateurs qui assimilent ce caractère au type de cette appellation tendent à confondre l’arôme de fruits cuits du vin jeune à celui du caractère oxydé des vins prématurément vieillis. Les analyses par CPG-O, CPG-SM et CPG-CPG-SM de moûts et de vins marqués par des nuances de fruits cuits ont permis de valider l’existence de zones odorantes rappelant l’odeur de ces échantillons. L’analyse par GC-MS de nombreux échantillons de moût et de vin montrent que le furanéol (caramel), la γ-nonalactone (coco, pêche cuite), la (Z)-1,5-octadien-3-one (géranium) contribuent à cet arôme. Nous révélons également l’existence d’un composé à odeur de fruits cuits, de type lactone et non identifié à ce jour. L’impact de la (Z)-1,5-octadien-3-one est clarifiée pour la première fois dans les moûts. Nous précisons également l’incidence de la date de récolte des raisins de Merlot et Cabernet-Sauvignon sur l’arôme et la composition fine des moûts et des vins. La vinification de raisins récoltés tardivement voire flétris produit des vins marqués par des nuances de fruits cuits accompagnées de teneurs élevées en furaneol et γ-nonalactoneIn the 2000s, aromas of dried fruits, referring to prune, fig or cooked peach are found more and more often in Bordeaux red wines. The markers responsible for these aromas related to the grape maturity are unknown. Firstly, we show that these shades, which were rarely encountered in wines from an appellation named A in this study, are now part of the distinctive aromas of these wines. However, the tasters that assimilate these characteristics to the distinctive aromas and the type of the appellation tend to get mistaken between the cooked fruit aromas from young wines and the ones from the oxidized character of prematurely aged wines. The GC-O, GC-MS and GC-GC-MS analysis of musts and wines, that had shades of cooked fruits aromas, allowed to confirm the realness of a scented area reminding of the scent of the samples. The analysis by GC-MS of number of must and wine samples show that the furaneol (caramel), the γ-nonalactone (coconut, cooked peach), the (Z)-1,5-octadien-3-one (geranium) take part in this aroma. We also reveal the presence of a lactone type compound having a cooked fruit aroma, but not identified so far. The influence of the (Z)-1,5-octadien-3-one has been identified for the first time in musts. The influence of the harvest date of Merlot and Cabernet-Sauvignon grapes on the aromas and fine composition of musts and wines is also specified. Winemaking processing of grapes that have been late harvested, even with a withered appearance produces wines with shades of cooked fruits aromas and high content of furaneol and γ-nonalactone
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Cameleyre, Margaux. "Contribution à l’étude de l’expression aromatique fruitée des vins rouges : Importance du niveau pré-sensoriel dans les interactions perceptives". Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0947/document.
Testo completoAbstract (sommario):
L’expression aromatique fruitée des vins rouges a été le sujet de nombreuses études qui démontrent qu’au moins une composante de cette expression est le reflet d’interactions perceptives impliquant des esters. La plupart des travaux concernant les interactions perceptives jusqu’à ce jour se sont avérés descriptifs, très peu ayant cherché à déterminer leurs origines. Dans ce but, un outil analytique a été développé afin d’apprécier les changements de volatilité d’esters représentatifs de l’arôme fruité des vins rouges. Ainsi, les coefficients de partage de 9 esters ont pu être déterminés aussi bien dans une solution hydroalcoolique que dans un vin rouge désaromatisé. L’application de cet outil analytique aux interactions perceptives préalablement mises en évidence a permis d'observer des changements de volatilité des esters lors de leur mise en mélange avec d'autres composés volatils en solution. Ces changements de volatilité, synonymes de potentiels effets pré-sensoriels, vont dans le même sens que ceux observés lors de l’analyse sensorielle. L’utilisation d’un verre de dégustation possédant deux compartiments a permis de mettre en lumière le fait que certaines modifications sensorielles pouvaient être expliquées, pour partie au moins, par des effets pré-sensoriels. L'impact olfactif de 5 alcools supérieurs ainsi que de 15 composés issus du bois de chêne a pu être démontré grâce à de nombreuses reconstitutions aromatiques, et leur rôle de masquage de l’arôme fruité des vins rouges a pu être souligné. Le calcul des coefficients de partage des esters a permis de montrer que des changements de volatilité ont lieu au sein de la solution. Ces modifications peuvent être corrélées aux résultats obtenus lors de l’analyse sensorielle. Ainsi, il est possible d’expliquer, en partie, les effets de masquage de l’arôme fruité observés grâce aux seuils de détection et aux profils sensoriels, du fait de la diminution de la présence d’esters dans l’espace de tête venant stimuler le dégustateur. Globalement, nos travaux ont permis de mettre en évidence que la mise en mélange en solution de composés volatils pouvait se traduire par la modification de la volatilité des constituants du mélange et que certaines de ces interactions pré-sensorielles pouvaient conditionner l'expression aromatique fruitée due aux estersA lot of studies highlighted the perceptual role of esters in fruity aromatic expression of red wines, demonstrating that at least partially it was due to perceptive interactions. Indeed, a lot of synergistic and masking effects have been brought to light in the past. However, the origin of these interactions remains unknown, although some authors suggested several levels where they can take place. In this goal, an analytical tool was developed to study the possible occurrence of esters volatility modifications. The application of this tool allowed determining partition coefficients of 9 esters in dilute alcohol solution and in dearomatized red wine. Thanks to perceptive interactions previously demonstrated by various authors, the application of this analytical tool highlighted modifications of esters volatility when compounds were mixed together in the solution. These modifications support the observations made with sensory analysis, indicating the existence of pre-sensorial effects. The use of a new tool consisting in a tasting glass with 2 compartments, reveals that these volatility changes may led to true sensorial modifications. Masking effect of fruity aroma due to 5 higher alcohols but also 15 wood by-products was highlighted using various aromatic reconstitutions. Esters partition coefficients calculation showed volatility modifications from the matrix to the gas phase. These data may be correlated with sensorial analysis results. Thus, it is possible to explain, at least partially, fruity aroma masking effect highlighted through detection threshold and sensory profile thanks to decrease in esters presence in headspace, and so a decline of taster’s olfactory stimulation. To conclude, our work showed that the mixture of volatile compounds in solution may result in modification of molecules volatility, and furthermore highlighted that these pre-sensorial interactions may impact fruity aromatic expression related to esters
Libri sul tema "Fruits rouges"
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Exposition nationale des variétés végétales et races animales domestiques menacées (3rd 1998 Geneva, Switzerland). Cardon argenté: Belle des croix rouges : mouton miroir : catalogue de la 3e Exposition nationale des variétés végétales et races animales domestiques menacées : une exposition Pro Specie Rara (PSR) realisée en collaboration avec les Conservatoire et jardin botaniques de la ville de Genève (CJB), Domaine de Penthes (Genève), 8-17 mai 1998. [Genève]: Ville de Genève, Dép. municipal des affaires culturelles, Editions des Conservatoire et jardin botaniques, 1998.
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Les Fruits rouges. Gründ, 1997.
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Fruits et Couleurs - Fruits and Colors (Fruits ROUGES - RED Fruits). Independently Published, 2021.
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Des petits fruits rouges: Roman. Montréal: XYZ éditeur, 2001.
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Saint-Arroman, Solange. TIOT le Gourmand de Fruits Rouges. Blurb, 2023.
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Bouissoux, Julien. Fruit rouge. Editions du Rouergue, 2002.
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Crumble Fruit Rouge. Independently Published, 2020.
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Tiramisu Au Fruit Rouge. Independently Published, 2020.
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Dumais, Laflèche. The Mysterious Red Fruit - Le Mystérieux Fruit Rouge. FriesenPress, 2017.
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Cardon argente: Belle des croix rouges : mouton miroir : Catalogue de la 3e Exposition nationale des varietes vegetales et races animales domestiques menacees ... et jardin botaniques de la ville de Geneve). Ville de Geneve, Dep. municipal des affaires culturelles, Editions des Conservatoire et jardin botaniques, 1998.
Cerca il testo completoCapitoli di libri sul tema "Fruits rouges"
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Sato, Mamoru. "Transport of 137Cs into Fruits After External Deposition onto Japanese Persimmon Trees". In Agricultural Implications of Fukushima Nuclear Accident (IV), 85–111. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9361-9_10.
Testo completoAbstract (sommario):
AbstractPrior to the Fukushima Daiichi accident, radiocesium released during previous nuclear accidents was deposited in periods when fruit was growing on fruit trees and radiocaesium deposited onto surface of soil and leaf was assumed to be the main route of transfer into fruit trees. In contrast, fruit trees in Japan were in their dormancy phase, so radiocesium was deposited onto external branches of the trees and onto orchard soils after the Fukushima Daiichi nuclear power plant accident in March 2011. While data had previously been compiled on root to fruit transfer, there were few studies identifying and quantifying the relative importance of external deposition and translocation compared with root to fruit transfer. This study quantified the transfer rate (TRf) of 137Cs applied to leaves and calyx into Japanese persimmon, which is an important fruit crop in Fukushima prefecture. The study examined the effects of leaf position on branches where radiocesium was administered and of fruit load on the transport of 137Cs into fruit before bud burst. When 137Cs was applied to leaves, derived TRf were higher after radiocesium application at the fruit growing stage than at the young fruit stage. There was no significant difference in TRf in mature fruit when contamination occurred via calyx or via leaves. However, the TRf via calyx contamination was higher at the young fruit stage, whereas the TRf via leaves result in an opposite trend. The TRf was dependent on the distance between fruit and the contaminated leaves. The effect of fruit thinning was verified contaminating the central of 5 consecutive fruiting shoots (bearing one fruit per each). The TRf of 137Cs from leaves into fruit on the contaminated fruiting shoot was higher where fruits on the shoots adjacent to the central one were picked off (fruit thinning) than where no fruit thinning was applied. The TRf of 137Cs into fruit on the uncontaminated fruiting shoot was lower than in fruits of contaminated shoots. There was a significant correlation between the amount of 137Cs and 40K as well as the concentration in the fruit on the contaminated fruiting shoot. TRf and aggregated transfer factors (Tagf-b) of 137Cs into fruits were also studied after application of radiocesium at dormancy to apical fruiting mother shoots or to 2-year-old lateral branches. When the apical fruiting mother shoot was contaminated, the TRf of the combined mature fruits collected from uncontaminated fruiting mother shoots was less than a quarter of the TRf of fruit growing on the contaminated apical mother shoot (on the same 2-year-old lateral branch). In contrast, when the 2-year-old lateral branch was contaminated, the TRf and Tagf-b into fruit were similar for both the fruit on both the apical and other fruiting mother shoots. These results indicate that the transfer of 137Cs to other parts of the fruit from the apical fruiting mother shoot is limited, whereas from the 2-year-old lateral branches, the transfer of 137Cs to fruit is similar on all the fruiting mother shoots. The results as well as the comparative experiment of fruit loads were consistent with the hypothesis that the transfer of 137Cs was controlled by the sink strength and activity of fruits. Tagf-b values of 137Cs applied to apical fruiting mother shoot and 2-year-old lateral branch into fruits before bud burst were about 10−3 to 10−4 m2 kg−1 based on dry and fresh weights, respectively. A significantly higher concentration of 137Cs and Tagf-b values were derived when fruit thinning was carried out than when fruits were not thinned. Refraining from intensive fruit thinning may be a useful remediation option that could reduce 137Cs activity concentrations in Japanese persimmon fruits.
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Xiao, Wenchao, Yan Yang, Huanlai Xing e Xiaolong Meng. "Clustering Algorithm Based on Fruit Fly Optimization". In Rough Sets and Knowledge Technology, 408–19. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-25754-9_36.
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Xing, Bo, e Wen-Jing Gao. "Fruit Fly Optimization Algorithm". In Innovative Computational Intelligence: A Rough Guide to 134 Clever Algorithms, 167–70. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-03404-1_11.
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"The Silk and Spice Routes". In Fruit from the Sands, 38–56. University of California Press, 2019. http://dx.doi.org/10.2307/j.ctvh1dx4s.8.
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"3. The Silk and Spice Routes". In Fruit from the Sands, 38–56. University of California Press, 2019. http://dx.doi.org/10.1525/9780520972780-006.
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Sriram, Subbaraman, Pooja Shekar Patel, Darisi Venkata Sudhakar Rao e Kodthalu Seetharamaiah Shivashankara. "Volatile Organic Compounds Produced by Microbes in the Management of Postharvest Diseases of Fruits". In New Advances in Postharvest Technology [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.110493.
Testo completoAbstract (sommario):
Nutritional security can be achieved only with the proper intake of fruits and vegetables. However, on an average 30% of the fruit produce are lost between harvest and consumption due to post-harvest spoilage. About 30–40% of total fruits production is lost after harvest. Main causes of postharvest loss include lack of temperature management, rough handling, poor packaging material, and lack of education about the need to maintain quality. There are many ways in which the post-harvest spoilage is managed. Use of chemicals in post-harvest management has direct effect on the consumers and there is a need for alternative strategies. Use of microbial biological control agents have been successfully adopted for soil borne diseases. Registration and biosafety issues make it difficult to use them against post-harvest diseases. Use of volatile organic compounds (VOCs) from bioagents for the post-harvest management provides an opportunity to explore the use of bioagents without having contact with fruits. Many classes of chemicals are produced as volatiles by microbial agents. This chapter describes the potential of VOCs in managing post-harvest diseases, their characterization and identification, biosynthesis, volatiles reported from bacterial, fungal and yeast bioagents, success stories of their use as potential bioagents.
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Crouzet, J., M. Sakho e D. Chassagne. "Fruit aroma precursors with special reference to phenolics". In Phytochemistry of Fruit and Vegetables, 109–24. Oxford University PressOxford, 1997. http://dx.doi.org/10.1093/oso/9780198577904.003.0006.
Testo completoAbstract (sommario):
Abstract Odorous compounds present in food reach the olfactory mucosa receptors in two different ways. The first is by directly sniffing volatile molecules into the nose, where they interact with the receptors producing the sensation known as odour. The second is where volatile substances released from food in the mouth reach the olfactory epithelium by a retronasal route, producing the sensation known as aroma. The combined sensations of odour, aroma, and taste give the overall ‘flavour’ of a food.
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Sacks, David. "F". In A Dictionary of the Ancient Greek World, 95–98. Oxford University PressNew York, NY, 1997. http://dx.doi.org/10.1093/oso/9780195112061.003.0006.
Testo completoAbstract (sommario):
Abstract farming Mainland Greece is a mountainous country, and ancient Greek society was shaped by the scarcity of farmland. Individuals owning land in the plains tended to be much richer and more elevated socially than those who farmed the foothills. Hilly terrain dictated cultivation of olive trees, grape vines, and other fruit-bearing plants that thrive on rough ground.
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Altınay Ozdemir, Meltem, e Emre Ergun. "Creative Tourism as Sustainable Initiative of a Coastal Destination". In Challenges and New Opportunities for Tourism in Inland Territories, 64–89. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-7339-6.ch005.
Testo completoAbstract (sommario):
The study examines tourist attractions and creative experiences of Fethiye, a coastal destination in Mugla, Turkey, based on theoretical overlaps in creative tourism. Creative tourism is suggested as an initiative for sustainability of local lifestyle, unique culture, and authenticity of Fethiye in this study. Therefore, the study was maintained with an exploratory and conceptual viewpoint. The results are presented as Fethiye's tourist attractions (13 categories) and creative experiences (six themes). The prominent creative experiences are specified as house wine, squeeze of olive, cheesemaking, mushroom (morel) picking, agriculture cultivation (local fruits and vegetables), Dastar weaving (geotagging product), carpet weaving (carpet of Kaya), wool spinning, local festivals, traditional bazaars, and soap making. Finally, a creative tour case was offered, and two creative tour routes were proposed in the appendix. The study revealed that creative tourism has importance for sustainability of authentic culture, responsible consumption, and economic development of the local community.
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Sharma, Manan, David Ingram e Lorna Graham. "Foodborne Outbreaks and Potential Routes of Contamination in Fresh and Fresh-Cut Fruits and Vegetables". In Foodborne Diseases, 19–36. CRC Press, 2016. http://dx.doi.org/10.1201/b19463-4.
Testo completoAtti di convegni sul tema "Fruits rouges"
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Scheibelmasser, Anton, Matthias Jeindl e Gunar Nakladal. "Exotic Fruit Ripening Based on Optical Characterisation". In OCM 2021 - 5th International Conference on Optical Characterization of Materials. KIT Scientific Publishing, 2021. http://dx.doi.org/10.58895/ksp/1000128686-2.
Testo completoAbstract (sommario):
Re-sellers and customers in super markets expect perfect quality fruit in terms of ripeness, sweetness, taste and a lack of inner and outer defects. Especially exotic fruits provide many challenges due to long transport routes and the logistics of ripening processes. Optical characterisation of the fruits could help ensure the required quality. A combination of visual and infrared light evaluation techniques allows the measurement of quality parameters that support the control system of the reseller’s store and the delivery logistics to the super market. For the inspection of chemical fruit characteristics (e.g. dry matter, sugar content), a hyperspectral near-infrared sensor is used. Additionally, an RGB camera is responsible for the visual defect analysis. Based on this measurement principle, a ripening control machine was developed and tested in daily business, successfully.
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Abibu, Wasiu Ayodele, Abdul Wasiu Sakariyau, Gafar Bamigbade, Amos Kolawole Oyebisi e Isqeel Ogunsola. "Consumer Perception of Ready-To-Eat Fruits Sold in Ogun and Lagos, Nigeria During the Covid-19 Pandemic". In International Students Science Congress. Izmir International Guest Student Association, 2021. http://dx.doi.org/10.52460/issc.2021.013.
Testo completoAbstract (sommario):
Covid-19 pandemic is a global health issue that adversely affected every sector of the world’s economy. Fruits are known to be a source of vitamins providing the body with necessary defense against infections (inclusive of Coronaviruses). Nigerians prefer to buy ready-to-eat (RTE) fruits than whole fruits due to their high prices. Consumer perception of RTE fruits sold in Ogun and Lagos, Nigeria during the Covid-19 pandemic months in 2020 and within January and March 2021 via an online survey were compared. Ogun and Lagos states were selected because they represent major entry routes for land and air travel into Nigeria respectively. 500 respondents were obtained with 49.7% each as male and female respectively in Ogun state while Lagos had 49.5% and 50.5% of the male and female gender. In addition, the predominant age group that responded to the questionnaire falls within 21 – 30 with 49.7% in Ogun state and 54.1% in Lagos state. 96.1% of the respondents in Ogun state had a tertiary education while 99% was recorded to possess tertiary education in Lagos state. 34% respondents took RTE fruits 2- 3 times a week, 31.2% less than once a week while only 2.8% took RTE fruits 4 – 5 times a week. From the survey, 84% of the respondents were aware that fruits possess needed vitamins to fight infections while only 87.4% of the respondent were aware of fruit borne poisoning and have knowledge of fruit borne pathogens like Staphylococcus aureus, Escherichia coli, Klebsiellaspp, Pseudomonas aeruginosa, Penicilliumspp, Aspergillusnigerand Rhizopusstolonifer. This study shows that fruit consumers neglected health consciousness in the purchase of RTE fruits in Ogun and Lagos in the first 3 months of 2021 compared to 2020. This negligence may result in a spike of another Covid-19 wave in Ogun and Lagos if the necessary food and health regulatory authorities fail to act timely. Also, the application of an effective hazard analysis and critical control point (HACCP) application reduces the chance of contamination of ready- to- eat fruits.
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Nayak, Tanvi, Nzikahyel Simon, Anil Kumar Yadav, Nikita Indrapalsingh Gour, Sandip Debnath, Malleboina Purushotham e Pratima S. Kadam. "A Novel Green Synthesized Carbon Dots for the Detection of Organophosphate Pesticides in Fruits and Vegetables". In International Conference on Recent Advancements in Biomedical Engineering. Switzerland: Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/p-k04s03.
Testo completoAbstract (sommario):
Green synthesized carbon quantum dots (CQDs) are successfully applied for the detection of organophosphate pesticides in fruits and vegetables. The banana fruit is used as a carbon source for the synthesis of CQDs via a one-pot hydrothermal route. The quenching in emission intensity of the synthesized carbon dots (CQDs) is observed for organophosphate pesticides (OPPS) in sample water. The hydroxyl and carboxylic functional groups over the surface of carbon dots exhibited a high binding affinity for detecting organophosphate pesticides. The amine group of Parathion was easily interacted with carboxylic group of CQDs which causes the fluorescence quenching via inner filter effect. The quenching in fluorescence intensity of CQDs was used to measure the inhibitory efficiency of OPPS. The quenching efficiency was proportional to the concentration of Parathion observed in sample water in the range of 0 to 500 nM under optimal conditions, with a detection limit of 12 nM. Moreover, the easy-to-use method had been used to detect Parathion in agricultural and environmental samples.
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Govorov, Anton, Marina Govorova, Helen Slizen e Sergey Ivanov. "Building Individual Educational Routes for Learning SQL Queries". In 2019 25th Conference of Open Innovations Association (FRUCT). IEEE, 2019. http://dx.doi.org/10.23919/fruct48121.2019.8981522.
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Matveeva, Nadezhda, e Elena Suvorova. "Methodology of searching for all shortest routes in NoC". In 2012 12th Conference of Open Innovations Association (FRUCT) and Seminar on e-Travel. IEEE, 2012. http://dx.doi.org/10.23919/fruct.2012.8122089.
Testo completo
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"Multi-Compartment Vehicle Loading and Route Optimization: Case for Exporting Thai Fresh Fruits". In WCSE 2022 Spring Event: 2022 9th International Conference on Industrial Engineering and Applications. WCSE, 2022. http://dx.doi.org/10.18178/wcse.2022.04.200.
Testo completo
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Ngoma, Idah, Samuel Mutiti, Rachel Serafin, Jonathan Levy, Cameron Hay, Gabriel Filippelli e Alice Mweetwa. "ASSESSING THE POTENTIAL OF DUST, VEGETABLES AND FRUITS AS POTENTIAL ROUTES FOR LEAD POISONING IN KABWE, ZAMBIA". In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-324796.
Testo completo
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Kavalerov, Maksim, Yuliya Shilova e Yuliya Likhacheva. "Adaptive Q-Routing with random echo and route memory". In 2017 20th Conference of Open Innovations Association (FRUCT). IEEE, 2017. http://dx.doi.org/10.23919/fruct.2017.8071304.
Testo completo
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Kulakov, Kirill A., Anton I. Shabaev e Irina M. Shabalina. "The route planning services approach for people with disability". In 2015 17th Conference of the Open Innovations Association (FRUCT). IEEE, 2015. http://dx.doi.org/10.1109/fruct.2015.7117977.
Testo completo
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Kashevnik, Alexey, Nikolay Teslya, Sergey Mikhailov, Mikhail Petrov, Anton Shabaev e Andrey Krasov. "Ridesharing for Carsharing Service Provider: Driver and Pedestrian Route Matching". In 2019 25th Conference of Open Innovations Association (FRUCT). IEEE, 2019. http://dx.doi.org/10.23919/fruct48121.2019.8981499.
Testo completoRapporti di organizzazioni sul tema "Fruits rouges"
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Perkins, Dustin. Invasive exotic plant monitoring at Colorado National Monument: 2021 field season. A cura di Alice Wondrak Biel. National Park Service, settembre 2022. http://dx.doi.org/10.36967/2294260.
Testo completoAbstract (sommario):
Invasive exotic plant (IEP) species are a significant threat to natural ecosystem integrity and biodiversity, and controlling them is a high priority for the National Park Service. The Northern Colorado Plateau Network (NCPN) selected the early detection of IEPs as one of 11 monitoring protocols to be implemented as part of its long-term monitoring program. This report represents work completed at Colorado National Monument during 2021. During monitoring conducted June 9–15, a total of 15 priority IEP species in 395 patches were detected on 53.6 kilometers (33.3 mi) of monitoring routes. An additional four species were detected in transects. Yellow salsify (Tragopogon dubius), ripgut brome (Anisantha diandra), jointed goatgrass (Cylindropyrum cylindricum), and tamarisk (Tamarix sp.) were the most commonly detected priority IEPs along monitoring routes, representing 74% of all priority patches. Except for ripgut brome and broad-leaf pepperwort (Cardaria latifolia), most patches of priority IEPs were than 40 m2. Ninety-five percent of tree patches were classified as seedlings or saplings, which require less effort to control than mature trees. Cheatgrass (Anisantha tectorum) was the most common IEP in transects, found in >63% of transects along every route surveyed. When segments of monitoring routes consistently surveyed from 2005 to 2021 were analyzed, Red Canyon, Wedding Canyon, and Fruita Canyon all had the highest number of IEPs per 100 meters during the entire monitoring period. Increases were driven by increases in jointed goatgrass on all three routes and yellow salsify (Tragopogon dubius) in Wedding Canyon and tamarisk in Red Canyon. Jointed goatgrass appears to be rapidly expanding, increasing from 8 patches in 2019 to 42 patches in 2021 (though the routes surveyed were not all the same). In addition, three species not seen in recent years—Canada thistle (Breea arvensis), bull thistle (Cirsium vulgare), and broad-leaf pepperwort—were detected, but in fewer than 10 patches each. These species should be prioritized for control. The No Thoroughfare, Ute Canyon, and Monument Canyon routes all have stayed relatively stable over time, but at least one patch of jointed goatgrass was found on each. Network staff plans to return to re-sample monitoring routes in 2023.
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Manulis-Sasson, Shulamit, Christine D. Smart, Isaac Barash, Laura Chalupowicz, Guido Sessa e Thomas J. Burr. Clavibacter michiganensis subsp. michiganensis-tomato interactions: expression and function of virulence factors, plant defense responses and pathogen movement. United States Department of Agriculture, febbraio 2015. http://dx.doi.org/10.32747/2015.7594405.bard.
Testo completoAbstract (sommario):
Clavibactermichiganensissubsp. michiganensis(Cmm), the causal agent of bacterial wilt and canker of tomato, is the most destructive bacterial disease of tomato causing substantial economic losses in Israel, the U.S.A. and worldwide. The goal of the project was to unravel the molecular strategies that allow Cmm, a Gram-positive bacterium, to develop a successful infection in tomato. The genome of Cmm contains numerous genes encoding for extracellular serine proteases and cell wall degrading enzymes. The first objective was to elucidate the role of secreted serine proteases in Cmm virulence. Mutants of nine genes encoding serine proteases of 3 different families were tested for their ability to induce wilting, when tomato stems were puncture-inoculated, as compared to blisters formation on leaves, when plants were spray-inoculated. All the mutants showed reduction in wilting and blister formation as compared to the wild type. The chpCmutant displayed the highest reduction, implicating its major role in symptom development. Five mutants of cell wall degrading enzymes and additional genes (i.e. perforin and sortase) caused wilting but were impaired in their ability to form blisters on leaves. These results suggest that Cmm differentially expressed virulence genes according to the site of penetration. Furthermore, we isolated and characterized two Cmmtranscriptional activators, Vatr1 and Vatr2 that regulate the expression of virulence factors, membrane and secreted proteins. The second objective was to determine the effect of bacterial virulence genes on movement of Cmm in tomato plants and identify the routes by which the pathogen contaminates seeds. Using a GFP-labeledCmm we could demonstrate that Cmm extensively colonizes the lumen of xylem vessels and preferentially attaches to spiral secondary wall thickening of the protoxylem and formed biofilm-like structures composed of large bacterial aggregates. Our findings suggest that virulence factors located on the chp/tomAPAI or the plasmids are required for effective movement of the pathogen in tomato and for the formation of cellular aggregates. We constructed a transposon plasmid that can be stably integrated into Cmm chromosome and express GFP, in order to follow movement to the seeds. Field strains from New York that were stably transformed with this construct, could not only access seeds systemically through the xylem, but also externally through tomato fruit lesions, which harbored high intra-and intercellular populations. Active movement and expansion of bacteria into the fruit mesocarp and nearby xylem vessels followed, once the fruit began to ripen. These results highlight the ability of Cmm to invade tomato fruit and seed through multiple entry routes. The third objective was to assess correlation between disease severity and expression levels of Cmm virulence genes and tomato defense genes. The effect of plant age on expression of tomato defense related proteins during Cmm infection was analyzed by qRT-PCR. Five genes out of eleven showed high induction at early stages of infection of plants with 19/20 leaves compared to young plants bearing 7/8 leaves. Previous results showed that Cmm virulence genes were expressed at early stages of infection in young plants compared to older plants. Results of this study suggest that Cmm virulence genes may suppress expression of tomato defense-related genes in young plants allowing effective disease development. The possibility that chpCis involved in suppression of tomato defense genes is currently under investigation by measuring the transcript level of several PR proteins, detected previously in our proteomics study. The fourth objective was to define genome location and stability of virulence genes in Cmm strains. New York isolates were compared to Israeli, Serbian, and NCPPB382 strains. The plasmid profiles of New York isolates were diverse and differed from both Israeli and Serbian strains. PCR analysis indicated that the presence of putative pathogenicity genes varied between isolates and highlighted the ephemeral nature of pathogenicity genes in field populations of Cmm. Results of this project significantly contributed to the understanding of Cmm virulence, its movement within tomato xylem or externally into the seeds, the role of serine proteases in disease development and initiated research on global regulation of Cmm virulence. These results form a basis for developing new strategies to combat wilt and canker disease of tomato.
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Gur, Amit, Edward Buckler, Joseph Burger, Yaakov Tadmor e Iftach Klapp. Characterization of genetic variation and yield heterosis in Cucumis melo. United States Department of Agriculture, gennaio 2016. http://dx.doi.org/10.32747/2016.7600047.bard.
Testo completoAbstract (sommario):
Project objectives: 1) Characterization of variation for yield heterosis in melon using Half-Diallele (HDA) design. 2) Development and implementation of image-based yield phenotyping in melon. 3) Characterization of genetic, epigenetic and transcriptional variation across 25 founder lines and selected hybrids. The epigentic part of this objective was modified during the course of the project: instead of characterization of chromatin structure in a single melon line through genome-wide mapping of nucleosomes using MNase-seq approach, we took advantage of rapid advancements in single-molecule sequencing and shifted the focus to Nanoporelong-read sequencing of all 25 founder lines. This analysis provides invaluable information on genome-wide structural variation across our diversity 4) Integrated analyses and development of prediction models Agricultural heterosis relates to hybrids that outperform their inbred parents for yield. First generation (F1) hybrids are produced in many crop species and it is estimated that heterosis increases yield by 15-30% globally. Melon (Cucumismelo) is an economically important species of The Cucurbitaceae family and is among the most important fleshy fruits for fresh consumption Worldwide. The major goal of this project was to explore the patterns and magnitude of yield heterosis in melon and link it to whole genome sequence variation. A core subset of 25 diverse lines was selected from the Newe-Yaar melon diversity panel for whole-genome re-sequencing (WGS) and test-crosses, to produce structured half-diallele design of 300 F1 hybrids (MelHDA25). Yield variation was measured in replicated yield trials at the whole-plant and at the rootstock levels (through a common-scion grafted experiments), across the F1s and parental lines. As part of this project we also developed an algorithmic pipeline for detection and yield estimation of melons from aerial-images, towards future implementation of such high throughput, cost-effective method for remote yield evaluation in open-field melons. We found extensive, highly heritable root-derived yield variation across the diallele population that was characterized by prominent best-parent heterosis (BPH), where hybrids rootstocks outperformed their parents by 38% and 56 % under optimal irrigation and drought- stress, respectively. Through integration of the genotypic data (~4,000,000 SNPs) and yield analyses we show that root-derived hybrids yield is independent of parental genetic distance. However, we mapped novel root-derived yield QTLs through genome-wide association (GWA) analysis and a multi-QTLs model explained more than 45% of the hybrids yield variation, providing a potential route for marker-assisted hybrid rootstock breeding. Four selected hybrid rootstocks are further studied under multiple scion varieties and their validated positive effect on yield performance is now leading to ongoing evaluation of their commercial potential. On the genomic level, this project resulted in 3 layers of data: 1) whole-genome short-read Illumina sequencing (30X) of the 25 founder lines provided us with 25 genome alignments and high-density melon HapMap that is already shown to be an effective resource for QTL annotation and candidate gene analysis in melon. 2) fast advancements in long-read single-molecule sequencing allowed us to shift focus towards this technology and generate ~50X Nanoporesequencing of the 25 founders which in combination with the short-read data now enable de novo assembly of the 25 genomes that will soon lead to construction of the first melon pan-genome. 3) Transcriptomic (3' RNA-Seq) analysis of several selected hybrids and their parents provide preliminary information on differentially expressed genes that can be further used to explain the root-derived yield variation. Taken together, this project expanded our view on yield heterosis in melon with novel specific insights on root-derived yield heterosis. To our knowledge, thus far this is the largest systematic genetic analysis of rootstock effects on yield heterosis in cucurbits or any other crop plant, and our results are now translated into potential breeding applications. The genomic resources that were developed as part of this project are putting melon in the forefront of genomic research and will continue to be useful tool for the cucurbits community in years to come.