Dissertations / Theses on the topic '664.3:665.3'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 19 dissertations / theses for your research on the topic '664.3:665.3.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Rodrigues, Ângela. "Chemical modification of vegetable oils to improve oxidative resistance and physical properties." Thesis, Manchester Metropolitan University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501958.
Full textAbu-Hardan, Madian. "Biopolymers-oil interactions in expanded systems." Thesis, University of Nottingham, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.479366.
Full textБочкарев, Сергій Володимирович. "Технологія білково-жирової суміші підвищеної харчової цінності спеціального призначення." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/42379.
Full textThe dissertation for obtaining the scientific degree of candidate of technical sciences (PhD.) in the specialty 05.18.06 – technology of fats, essential oils and perfumery and cosmetic products. – National Technical University «Kharkov Polytechnic Institute», Ministry of Education and Science of Ukraine, Kharkiv, 2019. The dissertation is devoted to scientific substantiation and development of the technology of protein-fat mixtures of increased nutritional value. The relevance of the research topic is related to the fact that up to now there are practically no domestic specialized products in particular for nutrition of sportsmen. It is known that the most important nutrients for the recovery of the athlete's organism are proteins with a certain ratio of amino acids, polyunsaturated fatty acids (PUFA) -3 groups, vitamins and minerals that are present in insufficient amounts in traditional foods. Therefore, athletes are often forced to take various dietary supplements, which are positioned as sports nutrition, and there is no regulatory framework for these products in Ukraine. Creating the newest protein-fat products on a scientifically based basis will enrich the diet of athletes, which, in turn, will positively affect the full-fledged training and improved athletic performance. Oilseeds are a promising raw material base for these products, which are a concentrated source of nutrients, in particular, essential nutrients. The development of scientifically based technology of protein-fat mixtures of increased nutritional value for sportsmen is a relevant scientific task, which is solved in the dissertation. Relevancy of a subject and significance of dissertation is confirmed by the fact that it has been carried out according to the plan of researches of the Ukrainian research institute of oils and fats (Kharkiv) within the state budgetary research of NAAS of Ukraine: «Development of a protein-fat base for rational nutrition of athletes» (RW № 0117U002374) and «Development of a method for inactivating proteinase inhibitors in a protein-fat base for a balanced nutrition» (RW № 0116U000178), where the applicant was an executive of separate stages of work.. Practical value of work for the oil and fat industry consists in justify the rational ratio of the components of the protein-fat mixture (flax, sesame, sunflower and corn oil) for nutrition of athletes, which is effective for essential amino acids with branched chain (leucine, isoleucine, valine) and tryptophan, the most enriched with PUFA ω-3 groups and plant antioxidants; in determining the technological conditions of its processing by microwave radiation to increase the nutritional value; in substantiation of the recipes of «truffle» cream candies and chocolate paste enriched with protein-fat mixture. The draft technical specification TU U 10.86.1 – 02071180.001:2018 «Protein-fat mixtures from oilseeds» was developed and agreed. Approbation of the production of protein-fat mixture from flax seeds, sesame, sunflower and refined deodorized corn oil, as well as chocolate paste, enriched with protein-fat mixture, was conducted in industrial conditions of Vegetus LLC (Kharkiv). Results of dissertation researches were introduced in educational process of organic synthesis and nanotechnologies department of NTU «КPI» when teaching disciplines «Chemical technologies of food additives and cosmetics», «Development of complex food additives» and «Use of food additives», in course and degree design, as well as in a students research work. For the first time, new scientific data on the composition of fatty acids, sterol fraction, antioxidant complex, amino acid composition and varietal characteristics to the accumulation xenobiotics in oilseeds adapted for cultivation in Ukraine has been obtained; scientifically based composition of protein-fat mixture for special purposes (flax seeds, sesame, sunflower and corn oil), which is effective relative to the content of essential fatty acids, essential amino acids and plant antioxidants; the dependence of the induction period of lipid oxidation of the protein-fat mixture on the content of sesamol, sesamolin, α-linolenic fatty acid and the mass fraction of moisture in the form of approximation models was experimentally determined. The experimental substantiation of the high nutritional value of oilseeds – sunflower, flax, and sesame, – not only as sources of essential fatty acids, but also essential amino acids – leucine, isoleucine, and valine, – received further development; the use of microwave radiation and wetting oilseeds to reduce the activity of inhibitors of proteolytic enzymes and increase the digestibility of the components of the protein-fat mixture were received further development in the thesis. The dried flax, sesame and sunflower seeds were selected as components of the protein-fat mixture. The choice is justified by the fact that the seeds of these oilseeds still do not contain modified genes and can become a source of plant-derived proteins, essential PUFAs, trace elements, as well as a number of valuable compounds necessary for the health of athletes. The overall chemical composition, fatty acid composition, composition of sterol and tocopherol fractions, amino acid, vitamin and mineral composition of flax seeds (Southern Night, Civica, Sympatik), sesame (Ilona, Cadet, Boyarin) and sunflower varieties (confectionery varieties Lakomka, Almaz, Zaporizkyi kondyterskyi), adapted to growing in Ukraine, were investigated Flax seeds are characterized by the highest content of α-linolenic acid. Sesame seed contains antioxidants sesamol and tocopherols. Sesamol is able to enhance the antioxidant effect of tocopherols in oils, so this complex can be offered for use as an antioxidant in fatty products for athletes. In turn, sunflower seeds contain significant amounts of tocopherols. Selected oilseeds also contain phytosterols, which have a number of therapeutic and prophylactic properties, in particular, reduce the level of total cholesterol in the body. Raw materials are rich in amino acids (leucine, isoleucine, valine), which are indispensable materials for building muscle tissue and are involved in the processes of its anabolism and recovery. It is these amino acids in human blood plasma that compete with tryptophan amino acid, which determines the rate of tryptophan penetration into the brain and the decrease in physical activity and efficiency, that is, the occurrence of fatigue. Seeds of oilseeds of selected varieties contain significant amounts of B vitamins and E vitamin. The ability of oilseeds of selected varieties of accumulation of toxic substances, namely heavy metals and nitrates was analyzed. Research results indicate that the amount of salts of heavy metals – copper, zinc, lead and cadmium, – as well as nitrates in all grades is much less than the MPC. As a result of the analysis of the obtained data the following varieties of oilseeds were selected as raw materials for the production of protein-fat mixture: Southern night (flax), Ilona (sesame), Lakomka (sunflower). The composition of protein-fat mixture of increased nutritional value of special purpose was scientifically substantiated: flax seeds – 51.00 ± 2.55 %; sesame seeds – 21.25 ± 1.06 %; sunflower seeds – 12.75 ± 0.63 %, refined deodorized corn oil – 15.00 ± 0.75 %. The fat content in the mixture is 55.92 ± 2.80 %, the protein content was 17.50 ± 0.88 %. The ratio of linoleic and -linolenic fatty acids in the mixture was about 1.2: 1.0; and the essential branched-chain amino acids (leucine: isoleucine: valine) were in the 2.0 : 1.2 : 1.4 ratio. Organoleptic, physico-chemical and technological quality control parameters of the protein-fat mixture were determined. The dependence of the induction period of lipid oxidation of protein-fat mixture in a closed container from storage temperature was calculated. It was established that the induction period of lipid oxidation of protein-fat mixture with the proposed ratio of components was in the range of 175–195 minutes at 85 ± 2 °C, which was about 2.7–3.0 times longer than the induction period of flaxseed component and about 1.3–1.4 times – the induction period of sunflower seeds. The oxidative stability of the protein-fat mixture was ensured by the fact that components, which were used in its manufacture, had not been subjected to prolonged heat treatment. But the presence of proteolytic enzymes inhibitors in the composition of oil seeds reduces the digestion of protein by the body and significantly limits its use in the food industry. In this regard, a technological solution to reduce the activity of proteolytic enzymes inhibitors of oilseeds of protein-fat mixture to maximize its nutritional value has been developed. This solution consists in its wetting and processing by microwave radiation ( = 2450 MHz). Rational conditions of oilseeds processing (hydration to 11–13 % moisture content and 210–260 s microwave radiation processing time) were experimentally established. These conditions will increase the biological value of the mixture, namely, increase the degree of cleavage and digestibility of proteins in the gastrointestinal tract. The technological scheme for the production of a protein-fat mixture of increased nutritional value based on oilseeds was proposed, a draft technical specification TU U 10.86.1 – 02071180.001:2018 for protein-oil mixtures from oilseeds was developed and agreed upon. Recipes of fat-containing confectionery – cream candy mass for the production of truffle-type sweets and chocolate paste with the addition of 15 % protein-fat mixture of high nutritional value were scientifically substantiated. It was experimentally proved that the induction periods of the candy mass and chocolate paste of the proposed composition exceed the control values by 44 and 55 %, respectively. The organoleptic evaluation of test samples was carried out to determine the effect of protein-fat mixture on consumer properties of confectionery products. Based on its results it was determined that the use of protein-fat mixture in cream candy masses and chocolate paste influenced on such organoleptic indicators like taste and aroma that were higher than in control samples. In particular, there were a characteristic savory nutty aroma and taste, longer remains «mouth-feeling»in the prototypes of confectionery products. A further increase in the content of the mixture – more than 15 % – leaded to the appearance of a mealy taste and characteristic aroma of flaxseed. The effective concentration of the protein-fat mixture in the confectionery products was chosen at the level of 15 % based on the results of the organoleptic assessment The results of determining the physico-chemical quality control parameters of confectionery indicated that when 15% of the protein-fat mixture was added to a creamy candy mass and chocolate paste, the change in the mass fraction of moisture and the mass fraction of fat occurred within the framework of normalized values. Reducing the total sugar content did not affect the organoleptic properties of confectionery, but reduced the cost of production. The developed products have a higher content of essential amino acids compared to the control, their lipid composition changes – the content of PUFAs of the ω-3 group increases significantly. As part of the developed confectionery products, there is also a significant amount of dietary fiber – a nutrient that accelerates the feeling of fullness, as well as a factor in the formation of normal intestinal microflora and the obesity prevention.
Король, Антон Юрійович. "Розроблення ректифікаційної колони та виносного кип’ятильника для модернізації установки виробництва гліколю." Master's thesis, КПІ ім. Ігоря Сікорського, 2019. https://ela.kpi.ua/handle/123456789/31553.
Full textThe Master's consists of an introduction, eight sections, conclusions, a list of references of 31 titles and 11 appendixes. The total volume is 127 pages of the main text, 31 figures, 24 tables. The purpose of the work is to modernization of glycol production plant with the development of distillation column and portable boiler. The project contains a description of the process of production of glycol, structures of distillation column and remote boiler, description, purpose and scope of equipment, specifications, description and justification of selected structures, calculations that confirm the efficiency and reliability of structures, recommendations for the installation and operation of apparatus, as well as the level of standardization and unification, startup project development. The results of the work can be used with the educational purpose at the department of machinery and apparatus of chemical and petroleum processing industries.
Магистерская диссертация состоит из введения, восьми глав, заключения, списка ссылок из 31 наименований и 11 приложений. Общий объем работы составляет 211с. основного текста, 31 рисунка, 24 таблиц. Целью работы является модернизация установки производства гликоля с разработкой ректификационной колонны и выносного кипятильника. Проект содержит описание процесса производства гликоля, конструкций ректификационной колонны и выносного кипятильника, описание, назначение и области применения оборудования, технические характеристики, описание и обоснование выбранных конструкций, расчеты, подтверждающие работоспособность и надежность конструкций, рекомендации по монтажу и эксплуатации аппаратов, а также уровень стандартизации и унификации, разработку стартап-проекта. Результаты работы могут быть использованы в учебных целях на кафедре машин и аппаратов химических и нефтеперерабатывающих производств.
Hetherington, Alexandra Claire. "Life cycle assessment of the production of edible oil emulsions : comparing a novel process route using aqueously extracted oil-bodies against existing technology." Thesis, University of Bath, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.618761.
Full textЖадан, Тетяна Андріївна. "Прогнозування і державна підтримка розвитку олійно-жирової галузі." Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/32180.
Full textThesis for the candidate degree in economics by speciality 08.00.03 – Economics and Management of National Economy. – Research center of industrial problems of development of Ukraine national academy of science, Kharkiv, 2016. The thesis is aimed at solving applied scientific task of further developing the theoretical-methodical and practical recommendations for forecasting and state support of development of the fat-and-oil industry in Ukraine. The place and role of fat-and-oil industry in the national economy of Ukraine have been identified and the need of its state support it has been proven. The essence of the of "state support for development of fat-and-oil industry" category has been refined. The modern states of the raw material base and production in the fat-and-oil industry of Ukraine have been analyzed. The material balance of the fat-and-oil industry was constructed. The main trends of consumption of vegetable oil in the domestic and foreign markets have been identified. Methodical maintenance of the assessment and forecasting of domestic consumption of vegetable oil in the short term has been improved. Domestic and international experiences of state support for the development of fat-and-oil industry have been generalized. The methodical approach to forecasting the volume of sunflower oil production in the short term has been proposed. Complex of state support's measures of the development of fat-and-oil industry in Ukraine on the basis of program-oriented approach have been proposed.
Mounayar, Rana. "Oral fat sensitivity in humans : links with salivary composition." Thesis, Dijon, 2013. http://www.theses.fr/2013DIJOS074.
Full textHuman fat perception has recently triggered particular interest as it was shown that it does not only involve aroma and texture perception but also taste perception. The latter was supported by the presence of free fatty acids (FFA) taste receptors on the tongue. Recent studies have shown that fat taste sensitivity is variable among individuals. This inter-individual variation could be linked to genetic or environmental factors. However, saliva could also play a role in this perception. The role of saliva in taste perception is increasingly recognized. Saliva contains molecules able of interacting with fat such as lipase and lipocalin. It is also a complex fluid which contains a large diversity of proteins and metabolites. Its regulation is also complex and its composition may vary after a sensory stimulation. Indeed, studies have shown that when giving primary taste stimulations, the whole salivary proteome is modified. Thus, the first aim of the present work was to use both targeted (enzymatic activity, antioxidant capacity etc) and untargeted approaches (proteomics and metabolomics) to identify links between taste sensitivity to a fatty acid, oleic acid, and the salivary composition. The second aim was to investigate whether the salivary composition is modified after an oral stimulation by oleic acid.Two groups of thirteen male subjects (highly and weakly sensitive to the taste of oleic acid) were selected from an initial panel of 73 healthy participants. Their whole saliva was collected in two ways; the first without stimulation in order to study the links between oral sensitivity to oleic acid and saliva composition and the second using a stimulation by the same fatty acid in order to study potential modifications of saliva composition depending on sensitivity. Results show that salivary composition is linked to oral fatty acid perception. Markers previously reported as associated to taste perception were determined in the highly sensitive group (carbonic anhydrase, Zinc Alpha 2 glycoprotein and cystatins) while markers (organic acids) indicating a higher bacterial load were identified in weakly sensitive group. Furthermore, results obtained after stimulation by oleic acid suggest that saliva composition is modified, which confirms its dynamic nature. As different modifications were observed for the highly and weakly sensitive group, our results suggest that saliva is not only modified after a stimulation but also depending on the sensitivity to that particular stimulation
Geelhand, de Merxem Ludovic. "Nouveaux matériaux photo-réparables à base d'huile végétale." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMR042.
Full textA biobased photohealing coating has been developed from 4 components, including epoxidized linseed oil and 4,4’- diphenyldiamine disulfide. The process has been carried out in two steps via an epoxy/amine reaction. The photohealing character is ensured by the presence of disulfide bridges which, under UV irradiation, can be photolyzed reversibly. The obtained coating contains about 46 wt-% of biobased compounds and 24 wt-% of photosensitive molecules. Compared to an analogous material without disulfide bond, the coating exhibits a lower crosslinking density and a higher fracture elongation.A significant repair of a 100 μm depth scratch has been occurred. An increase of 42% of tensile strength has been observed in only 3 hours of UV irradiation at 100°C
Жадан, Тетяна Андріївна. "Прогнозування і державна підтримка розвитку олійно-жирової галузі." Thesis, Науково-дослідний центр індустріальних проблем розвитку НАН України, 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/30021.
Full textThesis for the candidate degree in economics by speciality 08.00.03 – Economics and Management of National Economy. – Research center of industrial problems of development of Ukraine national academy of science, Kharkiv, 2016. The thesis is aimed at solving applied scientific task of further developing the theoretical-methodical and practical recommendations for forecasting and state support of development of the fat-and-oil industry in Ukraine. The place and role of fat-and-oil industry in the national economy of Ukraine have been identified and the need of its state support it has been proven. The essence of the of "state support for development of fat-and-oil industry" category has been refined. The modern states of the raw material base and production in the fat-and-oil industry of Ukraine have been analyzed. The material balance of the fat-and-oil industry was constructed. The main trends of consumption of vegetable oil in the domestic and foreign markets have been identified. Methodical maintenance of the assessment and forecasting of domestic consumption of vegetable oil in the short term has been improved. Domestic and international experiences of state support for the development of fat-and-oil industry have been generalized. The methodical approach to forecasting the volume of sunflower oil production in the short term has been proposed. Complex of state support's measures of the development of fat-and-oil industry in Ukraine on the basis of program-oriented approach have been proposed.
Aymé, Laure. "Biochimie fonctionnelle des diacylglycérol acyltransférases ; apports à la biologie de synthèse des huiles." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLA007.
Full textTriacylglycerols (TAG) are an essential energy storage in many cells. Their composition is diverse; they are the main component of the seed oil for the food industry or used to produce industrial compounds. Acyl-CoA: diacylglycerol acyltransferase (DGAT) catalyze the final and rate-limiting step of TAG synthesis by transferring a fatty acid onto a diacylglycerol. In plants, there are three families, DGAT1, DGAT2 and DGAT3, sharing no homology and of unknown structure. It prevents any improvement of seed oil yield and quality by a rational approach. DGAT1 involvement in edible oil accumulation was demonstrated. In some plants, DGAT2 plays a key role in the synthesis of unusual TAG such as hydroxylated TAG found in castor oil and used to produce lubricants and bioplastics. DGAT3 contribution to TAG biosynthesis has not been demonstrated in planta. We studied three families of DGAT from the model plant Arabidopsis thaliana, belonging to the same family as oilseed rape, and a DGAT1 from oil palm, an industrial crop. DGAT expression in bacteria, yeasts and the study of mutant plant lines allowed us to characterize their activities. The modulation of yeast TAG content and composition induced by DGAT expression demonstrated the value of these enzymes for the production of tailored microbial oils
Bouhlal, Sofia. "Consequence of salt, sugar and fat content modifications in foods on children's preference and intake." Thesis, Dijon, 2011. http://www.theses.fr/2011DIJOS110/document.
Full textBackground: In France, the National Nutrition and Health Programme (“Programme National Nutrition Santé” or “PNNS”) is in charge of implementing the recommendations aiming at reducing salt, sugar and fat quantities in foods. However, the extent to which this might impact children’s food preferences and intake is limited. Objective: The present work aimed at understanding the impact of varying salt, sugar and fat variations in foods, on toddlers and children’s food preferences and intake. Methods: Studies were conducted in toddlers’ and children’s natural eating environment (nursery and school canteen), at their usually scheduled lunch and/or snack times. Results: Concerning sucrose, the addition of a low amount seems enough to trigger intake; thus, sucrose can be reduced without affecting food preferences and intake. As far as fat is concerned, suppressing or adding butter did not have an immediate impact on toddlers’ green beans or pasta intake. Besides, low-fat products seem to be well accepted by toddlers and adults. Concerning salt, its reduction seems more puzzling and should be considered cautiously. Our results highlighted dissociation between the direct positive effect of salt on food preferences and intake, and its role on learning. Conclusions: Food sensory qualities are important for eating behaviour. Although it seems that reductions of sugar and fat in foods are possible, thus helping to reduce energy intake, those concerning salt should be considered cautiously
Guzun-Cojocaru, Tatiana. "Peroxydation des lipides émulsionnés et transfert d'ions fer à l'interface huile / eau stabilisée par des protéines de lait : influence des résidus phosphates et de la stabilité du chélate de fer." Thesis, Dijon, 2010. http://www.theses.fr/2010DIJOS012/document.
Full textIron incorporated into food systems induces oxidation and precipitation. The consequences are a reduced bioavailability and a modification of other food flavor. The iron chelates such as Fe-bisglycinate and Fe-EDTA represent a possibility to avoid side effects, since the iron is protected. The inertety of Fe bisglycinate and NaFe EDTA for lipid peroxidation has been verified in oil-in-water emulsion models stabilized by sodium caseinate or by β lactoglobulin through the following studies: i/ increase of primary and secondary products of oxidation, ii/ change of the properties of the oil/water interface (tension and interfacial rheology), iii/ the stability of the chelate iron (Fe-bisglycinate) in the aqueous phase with β lactoglobulin at different pH (pH 2, 3.5 and 6.5). The oil/water interface stabilized by proteins with phosphate groups has induced peroxidation, which was not observed with proteins containing no phosphate residue. These results demonstrate also that the type of iron salts plays a crucial role in the oxidative stability of emulsions. The ability of the complex to retain iron ion and to avoid “free” ferrous ion is the first important factor to be controlled. The affinity of milk proteins to bind these free iron ions is the second factor that controls the transfer to oil/water interface. To sum up, the competition for iron ions between functional groups of protein and salt counter ions (glycinate, sulfate or EDTA) governs the oxidation state of the system in neutral conditions. In acidic medium, the oxidation is mainly governed by the stability of the complex and the possibility to free iron in bulk
Syarifuddin, Adiansyah. "Multi sensory integration as a strategy to compensate for sodium and fat reduction in food." Thesis, Dijon, 2015. http://www.theses.fr/2015DIJOS088.
Full textIn recent years, health authorities worldwide advise for a reduction of salt and fat in daily food consumption. However, foods with reduced salt and fat content are often not appreciated by consumers, Therefore, the formulation of low-salt-fat foods that maintain acceptability is a major concern in food research. In this thesis, the multi-sensory integration and release kinetics of flavor compounds were explored as strategies to compensate for salt and fat reduction in cheese products (model cheeses and real cheeses). The objective was to better understand the mechanisms leading to aroma and salt release during mastication and to evaluate how the matrix composition and structure influence salt and aroma release profile.Multisensory integration approach to compensate for salt and fat reduction was studied in a first step. The structure and sensory perception of 24 cheese models varying in composition (2 levels of fat, 2 salt, 2 pH at renneting) and flavored with either a sardine aroma (associated to salt), a butter aroma (associated to fat) or not flavoured (control) were characterised by rheological measurements (uniaxial compression) and sensory evaluation (descriptive analysis). The results demonstrated an influence of the composition on the products structure and perceived texture. Furthermore, a significant saltiness enhancement was induced by sardine aroma while significant fat perception enhancement was induced by butter aroma. However, this influence of the aroma on other sensory dimensions depends on the texture of the products thus on their composition and structure. These results have been extended to real cheeses but with specificities. If the sardine flavor enhanced the perception of salt, only butter-sardine-flavor enhanced the perception of fat.In a second step, a physico-chemical approach was developed to explore the release kinetic of flavor compounds during in vitro breakdown using a chewing simulator. The aim was to use these data to explain the influence of the structure of model cheeses and real cheeses and their breakdown during chewing on sensory effects observed in the first step. Volatile compounds release was monitored by connecting the chewing simulator to a proton transfer reaction-mass spectrometry (PTR-MS), while salt release was monitored using a conductivity probe. Results showed that product composition and structure (fat, salt and pH at renneting) influenced aroma release, which however depends on the nature of the aroma: the more hydrophobic compounds are less sensitive to variations in fat content and more sensitive to variations in pH and therefore to the products structure. The salt release kinetic during in vitro chewing was also influenced by the composition and structure of the products. Indeed, beyond salt content which determined the amount of salt released, fat content and the pH at renneting modulated the release kinetic. In conclusion, this work showed a significant impact of the flavor compounds release kinetic and probably of temporality of sensations on the overall perception of salt and fat when consuming a complex food
Добрунов, Дмитро Євгенійович. "Технологія комплексної переробки соняшникової макухи з безлушпинного ядра." Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/21793.
Full textThesis for a candidate of technical sciences degree. Speciality 05.18.06 − fats, essential oils and perfume-cosmetic products technology − National Technical University "Kharkiv Polytechnic Institute". Ministry of Education and Science of Ukraine, Kharkiv, 2016. The dissertation is devoted to the basis of technology of complex processing of sun-flower cakes obtained from dehulled sunflower kernels. During the work it was ascertained that sunflower oil and chlorogenic acid extraction rates depend on solvent type, temperature, and extraction time in the cavitation facility. The regression equations for the abovementioned processes were derived. Antioxidant properties of solids extracts obtained from dehulled sunflower kernels (SE) were discovered. It was shown that all of the investigated SE terminate the chain reactions during the propagation step. Complex technology of sunflower cakes processing obtained from dehulled sunflow-er kernels was designed. This technology allows obtaining of extracted oil, sunflower meal (or proteinrich flour), and fat-soluble antioxidant. The results of the work are adopted at "New Energy-Efficient Technologies", LLC, "Kharkiv Biscuit Factory", OJSC, and implemented in the educational process at the Department of Technology of Fats and Fermentation Products of NTU "KhPI".
Добрунов, Дмитро Євгенійович. "Технологія комплексної переробки соняшникової макухи з безлушпинного ядра." Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/21784.
Full textThesis for a candidate of technical sciences degree. Speciality 05.18.06 − fats, essential oils and perfume-cosmetic products technology − National Technical University "Kharkiv Polytechnic Institute". Ministry of Education and Science of Ukraine, Kharkiv, 2016. The dissertation is devoted to the basis of technology of complex processing of sun-flower cakes obtained from dehulled sunflower kernels. During the work it was ascertained that sunflower oil and chlorogenic acid extraction rates depend on solvent type, temperature, and extraction time in the cavitation facility. The regression equations for the abovementioned processes were derived. Antioxidant properties of solids extracts obtained from dehulled sunflower kernels (SE) were discovered. It was shown that all of the investigated SE terminate the chain reactions during the propagation step. Complex technology of sunflower cakes processing obtained from dehulled sunflow-er kernels was designed. This technology allows obtaining of extracted oil, sunflower meal (or proteinrich flour), and fat-soluble antioxidant. The results of the work are adopted at "New Energy-Efficient Technologies", LLC, "Kharkiv Biscuit Factory", OJSC, and implemented in the educational process at the Department of Technology of Fats and Fermentation Products of NTU "KhPI"
Schoumacker, Rachel. "Perception du gras : variabilité interindividuelle et origine." Thesis, Dijon, 2016. http://www.theses.fr/2016DIJOS030/document.
Full textTo reduce the fat content in food products as recommended by the National Nutrition and Health Plan, it is necessary to understand the fat perception mechanisms. In this context, this thesis work aimed to contribute to the understanding of fat perception through the study of interindividual variability in fat perception and the research of its origin.For this purpose, a multidisciplinary approach combining physico-chemistry of “fatty” aroma molecules, subjects’ oral physiology, food oral processing and sensory perception during food consumption has been established. A particular focus has been done on the olfactory component of fat perception, especially on the potential contribution of the metabolites produced in the human nasal cavity from odorous volatile compounds.This work shows that reducing fat content in cottage cheese decreases the perception of the cream aroma, increases bitterness and astringency and decreases the perceived greasy film. The results confirmed the multidimensional nature of fat perception. This work also shows that fat perception is related to the lipid content of the mouth coating as well as the aroma compounds composition of the food matrix.It highlights three groups of subjects with significant difference in fat sensitivity. These groups also differ in several physiological and anatomical parameters which can impact tactile, taste and smell sensations and therefore potentially fat perception. Finally, this work proves the existence in the human olfactory mucosa of enzymes capable of metabolizing odorous compounds into volatile metabolites. These metabolites proved to be themselves odorants could be involved in fat perception or its modulation
Pambou-Tobi, Nadia. "Influence des conditions de friture profonde sur les propriétés physicochimiques de la banane plantain Musa AAB « harton » : étude du vieillissement des huiles et modélisation des transferts de matière au cours du procédé." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0063/document.
Full textPlantain is a fruit commonly consumed in Congo - Brazzaville in its cooked form, as an accompaniment. The process of deep frying plantain is a widespread practice, often poorly mastered, given the prolonged use of frying oils, leading to the formation of compounds harmful to health. Indeed, for a number of years, the consumption of local oils (soybean, palm) and their degradation after heating are cause of major concern for consumer safety. The objectives of this study were to investigate the influences of the deep frying process applied on the Musa AAB plantain of "harton" variety, maturity level 7, as consumed in sliced form. We initially applied response surface methodology (RSM) to the deep frying process to determine the influence of three parameters (time / temperature / quantity) on different responses (color, hardness, oil uptake and water content) according to the type of oil used (soybean, palm, Frial oils). Once optimal conditions were obtained from the plantain in domestic conditions, the study focused on the evolution of frying oil stability, by monitoring physicochemical parameters of the degradation of the aforementioned (total polar compounds, free fatty acids, primary and secondary oxidation products). Analyses of color, crystallization point and viscosity, were added to the study and helped establish the optimal duration of use for these oils depending on the quantity of plantains fried. Lastly, the mechanisms of water transfer and oil uptake in the matrix has been studied and modeled according to temperature, thickness and immersion time
Ζακούρα, Μαρία. "Ανάπτυξη ταχύρρυθμου αναερόβιου συστήματος αξιοποίησης αποβλήτων ελαιοτριβείου." Thesis, 2014. http://hdl.handle.net/10889/8347.
Full textOlive Mill Wastewaters, OMW, are the byproduct of the olive oil production. The olive oil production has an economic and social impact on people of countries who produce olive oil, which are mainly located in the Mediterranean region, where 80% of the global production is produced. Large quantities of OMW are produced every year and in combination with their characteristics, they make OMW a serious problem to be solved as they are dangerous if they are disposed directly to the environment. One of the most effective and very promising method of treatment of OMW is anaerobic digestion. The interest of the research on treatment of OMW is focused on the development of anaerobic methods and biological reactors which can reduce sufficiently high organic loading rates. Among the high-rate processes that have been developed the recent years, Upflow Anaerobic Sludge Blanket, UASB, reactors are the most successful. The microorganisms form aggregates into UASB, known as granules, which have great biological activity and extraordinary sedimentation ability. The aim of this study was to estimate the production efficiency of three high-rate anaerobic systems, two UASB reactors and one hybrid UASB, under mesophilic conditions( 37oC) for the treatment of centrifuged OMW from a three-phase olive mill. One UASB inoculated with anaerobic flocculant sludge, UASB-F, while the other two, UASB-G and HUASB-G, inoculated with granulated sludge. All reactors feed consisted of centrifuged and diluted with 3D-H2O OMW in order to avoid phenols obstruction. All three reactors worked under similar organic loading rates and their production efficiency was compared. More specifically, UASB-F reactor was stable for higher loading rates compared with HUASB-G and UASB-G reactors and the higher efficiency, 1.15 LCH4/Lreactor/d, was achieved in this system. Concerning COD reduction, more than 50% was achieved in UASB-F reactor, while the percentage was lower than that in the other two reactors. UASB-F reactor worked for 500 days and granules were not formed (optical observation). on the other hand, the initial granules in UASB-G and HUASB-G reactors lost their structure (optical observation) and the efficiency of these systems was kept in low levels.
Пташник, Олег Степанович, and Oleh Ptashnyk. "Технологія виробництва паляниці української з додаванням нетрадиційних олій." Master's thesis, 2021. http://elartu.tntu.edu.ua/handle/lib/37089.
Full textChanges in the diet that have occurred in recent decades and are characterized by the consumption of excessive amounts of refined and high-calorie foods adversely affect the functioning of the body, the health of internal organs and skin. This is due to the low content of dietary fiber, polyunsaturated fatty acids, vegetable protein, minerals and vitamins, and their long-term restriction can cause a number of so-called "civilizational diseases", which in ancient times did not occur in young and able-bodied people. they are more and more often observed in young people. And one of the important tasks for the food industry is to ensure the balance of nutrients for the functioning of the human body and prevent the development of unwanted diseases in young people. In the modern above-mentioned diet, rich in Omega 6 and Omega 9 fatty acids, the need for Omega 3 fatty acids is clearly observed to normalize the balance of Omega 3-6-9 fatty acids in the human body. Therefore, one of the most promising areas is the enrichment of popular foods, such as bread and bakery products, with polyunsaturated fatty acids, in particular alpha-linolenic (ALA) acid, which is one of the main Omega 3 polyunsaturated fatty acids that can be obtained from products of vegetable origin. The most common source of which is flax, in particular flaxseed oil and flaxseed, which is rich in oil and consists of an average of 50% ALA. Today, wheat flour is perhaps the most common raw material for the production of bread and bakery products, and Ukrainian palyanitsa is a traditional Ukrainian bread product, flat bread, with a predominant content of wheat flour. The surface of the bread is a bit floury with a crispy crust-visor, which is formed as a result of an incision on the bread before baking, which is a symbol of culture, hospitality, affection, a precautionary and ritual sign. Therefore, improving the diet based on it is a great opportunity to enrich the diet with nutrients and ensure the health of the population.
РЕФЕРАТ ВСТУП 1. ОГЛЯД ЛІТЕРАТУРИ. 1.1. Сучасна ситуація на ринку виробників хлібобулочних виробів. 1.2. Формування нового асортименту хлібобулочних виробів. 1.3. Сучасні харчові тенденції населення. 1.4. Продукти на основі інгредієнтів, багатих на омега-3 жирні кислоти. 1.5. Сучасні проблеми харчування та потенційне застосування льону в їх вирішенні. 1.6. Популярні високоякісні джерела омега 3. 1.7. Хлібопекарський виріб, паляниця українська 2. ДОСЛІДЖЕННЯ. АНАЛІЗ НОВІТНІХ МЕТОДІВ ПОКРАЩЕННЯ ХАРЧОВИХ ПРОДУКТІВ. 2.1. Їжа і її вплив на організм. 2.2. Особливості обміну речовин в організмі. 2.3. Омега 3, та інші поліненасичені жирні кислоти. 2.4. Льон та його вплив на організм. 2.5. Нові методи збагачення продуктів поліненасиченими жирними кислотами омега 3. 2.6. Функціональна їжа 3. ОХОРОНА ПРАЦІ ТА БЕЗПЕКА В НАДЗВИЧАЙНИХ СИТУАЦІЯХ. 4. ВИСНОВКИ БІБЛІОГРАФІЯ ДОДАТКИ