Littérature scientifique sur le sujet « Tracciabilità geografica »
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Thèses sur le sujet "Tracciabilità geografica"
FOSCHI, MARTINA. « Tracciabilità geografica di prodotti alimentari tradizionali attraverso profili multi-elementali e spettroscopici combinati alla chemiometria ». Doctoral thesis, Università degli Studi dell'Aquila, 2021. http://hdl.handle.net/11697/169013.
Texte intégralBertoldi, Daniela. « Elementi minerali anche in traccia nel sistema suolo-vite : accumulo e distribuzione nelle bacche e tracciabilità geografica delle uve ». Doctoral thesis, country:IT, 2009. http://hdl.handle.net/10449/23916.
Texte intégralSPALLA, STEFANO. « METODI CHIMICI PER IL RICONOSCIMENTO DELL'ORIGINE GEOGRAFICA DEGLI ALIMENTI ». Doctoral thesis, Università Cattolica del Sacro Cuore, 2008. http://hdl.handle.net/10280/249.
Texte intégralFood traceability systems have a broader scope and aim to document the history of a product along the entire production chain from primary raw materials to the final consumable product. the present work has looked at ways of detecting rare earth and strontium isotope abundance ratios. It is fundamental to have knowledge of the REE concentrations of the soil where the plants are grown and the distribution of the REEs in the different parts of the plants: roots, stems, leaves, and berries. Tomato is one of the most widely grown vegetables in the world. The analytical procedure, using inductively coupled mass spectrometry (ICP-MS) and HR-ICP-MS proved to be suitable for the determination of REEs in plants and soil, and was validated using certified samples. Strontium isotope ratio is an important parameter allowing the discrimination of foods coming from different geographical origins. Very high precision is usually reached with Thermal Ionization Mass Spectrometer (TIMS). The analytical techniques have permitted to determine all REEs elements in compartments of tomato plants. The described method point out the measurement of the 87Sr/86Sr ratio as a very important parameter for the discrimination of tomato from different geographical origins, even if the present experimental work treating a limited number of samples have to be considered as a “first step”.
SPALLA, STEFANO. « METODI CHIMICI PER IL RICONOSCIMENTO DELL'ORIGINE GEOGRAFICA DEGLI ALIMENTI ». Doctoral thesis, Università Cattolica del Sacro Cuore, 2008. http://hdl.handle.net/10280/249.
Texte intégralFood traceability systems have a broader scope and aim to document the history of a product along the entire production chain from primary raw materials to the final consumable product. the present work has looked at ways of detecting rare earth and strontium isotope abundance ratios. It is fundamental to have knowledge of the REE concentrations of the soil where the plants are grown and the distribution of the REEs in the different parts of the plants: roots, stems, leaves, and berries. Tomato is one of the most widely grown vegetables in the world. The analytical procedure, using inductively coupled mass spectrometry (ICP-MS) and HR-ICP-MS proved to be suitable for the determination of REEs in plants and soil, and was validated using certified samples. Strontium isotope ratio is an important parameter allowing the discrimination of foods coming from different geographical origins. Very high precision is usually reached with Thermal Ionization Mass Spectrometer (TIMS). The analytical techniques have permitted to determine all REEs elements in compartments of tomato plants. The described method point out the measurement of the 87Sr/86Sr ratio as a very important parameter for the discrimination of tomato from different geographical origins, even if the present experimental work treating a limited number of samples have to be considered as a “first step”.
GHISONI, SILVIA. « UNTARGETED METABOLOMIC FINGERPRINTING FOR AUTHENTICITY AND TRACEABILITY OF FOODS ». Doctoral thesis, Università Cattolica del Sacro Cuore, 2020. http://hdl.handle.net/10280/72714.
Texte intégralNowadays, food traceability is a growing consumer interest worldwide. Food traceability could be considered a fundamental tool for ensuring safety and high quality of food. Food quality is based not only on the safety and integrity of food, but also on the authenticity, the genuineness of the raw material and the geographical origin. The aim of the work was to investigate the potential of untargeted metabolomics to ensure the authenticity and traceability of foods. Secondary metabolites, like polyphenols and sterols, could be conveniently used to meet this goal due to their chemical diversity and their responses to environmental stimuli. Samples were analyzed through UHPLC-ESI/QTOF-MS. The obtained data were subjected to multivariate statistical analysis. The obtained results showed that secondary metabolites can be efficiently used for authenticity and traceability purposes, with regards to cultivars and geographical origin. These information confirm the role of environmental factors in shaping the actual profile of secondary metabolites in plant foods. The markers found could be used for a target quantification method, a less expensive and less sophisticated analysis, in order to provide an efficient tool that could help to guarantee food quality on routine basis.
GHISONI, SILVIA. « UNTARGETED METABOLOMIC FINGERPRINTING FOR AUTHENTICITY AND TRACEABILITY OF FOODS ». Doctoral thesis, Università Cattolica del Sacro Cuore, 2020. http://hdl.handle.net/10280/72714.
Texte intégralNowadays, food traceability is a growing consumer interest worldwide. Food traceability could be considered a fundamental tool for ensuring safety and high quality of food. Food quality is based not only on the safety and integrity of food, but also on the authenticity, the genuineness of the raw material and the geographical origin. The aim of the work was to investigate the potential of untargeted metabolomics to ensure the authenticity and traceability of foods. Secondary metabolites, like polyphenols and sterols, could be conveniently used to meet this goal due to their chemical diversity and their responses to environmental stimuli. Samples were analyzed through UHPLC-ESI/QTOF-MS. The obtained data were subjected to multivariate statistical analysis. The obtained results showed that secondary metabolites can be efficiently used for authenticity and traceability purposes, with regards to cultivars and geographical origin. These information confirm the role of environmental factors in shaping the actual profile of secondary metabolites in plant foods. The markers found could be used for a target quantification method, a less expensive and less sophisticated analysis, in order to provide an efficient tool that could help to guarantee food quality on routine basis.
SPURIO, ANGELICA. « Il ruolo della geologia e della geochimica nella tracciabilità geografica di prodotti alimentari DOP mediante l’uso del rapporto isotopico 87Sr/86Sr ». Doctoral thesis, 2019. http://hdl.handle.net/11573/1235416.
Texte intégralThis work examines the applicability of the isotopic marker of strontium (Sr) as a tracer of dairy products to Protected Designation of Origin (PDO), such as Pecorino Romano PDO cheese from Latium and Castelmagno PDO cheese, to verify the existence of a correlation with the original area so to bind the product to the geographical site of origin. 87Sr/86Sr ratio was determined in samples of rocks, soil, vegetation, water, fresh milk and cheese; in order to define the isotopic compositions of production chain of these two typical Italian cheeses produced in two different geographical areas distinguished by a peculiar geology. Sampling took place over two years in different seasons. In addition, the isotopic composition of carbon (C) and nitrogen (N) analyzed of selected samples were carried out and determined the concentrations of some metals (Ga, As, Se, Rb, Sr, Cd, Cs, Ba, Tl, Pb, Bi and U) and Rare Earths Elements (REE) in the various samples. For what concerns the Pecorino Romano PDO cheese from Latium, it was observed that the isotopic composition of the Sr of rock (0.710479-0.710765) and of the soils (0.709216-0.710408) indicate a provenance from an area characterized by substantial geological uniformity, such as Norther of Latium. The different samples of grass (87Sr/86Sr = 0.709458-0.710341), of milk (87Sr/86Sr = 0.709341-0.710264) and Pecorino Romano DOP from Latium (0.710013-0.710100) result in Sr isotopic composition of overlapping, confirming the absence of significant fractionation due to metabolic processes and/or production. In addition, repeated analyses over a period of two years showed an absence of fractionation due to seasonality. This presupposes that the isotopic marker of the Sr can be a useful tool for the characterization of the production chains of dairy products. Finally, the comparison of the Sr isotopic values of samples Pecorino Romano PDO from Latium and Sardinia (0.709171-0.709859) shows the potentials of the isotopic marker of the Sr in the field of geographical traceability. However, to characterize the geographic origin of some samples of Pecorino Romano PDO, Italian and foreign samples, with the region of Sardinia on the label, the isotopic ratio of the Sr has been associated with further parameters such as the isotopic analysis of stable light elements (C and N), the determination of the concentration of REEs and certain metals, demonstrating how a multi-isotopic approach can be valid in determining the geographical origin of PDO dairy products. The applicability of Sr isotopic systematics has been used to characterize the production chain of Castelmagno PDO cheese. The isotopic compositions of the Sr of the rocks (0.707765- 0.712842) and of the soils (0.707756 - 0.709001) show how the area is characterized by a certain geological heterogeneity, which affects the isotopic value of the grass Sr (0.708241 - 0.709646), of milk (0.709421 - 0.709644) and consequently the Castelmagno PDO cheese (0.709169 - 0.709777). To better understand the relationship between geology and food traceability in areas characterized by geological complexity, the isotopic ratio of Sr has been associated with the determination of REE concentrations of some samples. In conclusion, Sr isotopic systematic is a promising tool to characterize the production chains of PDO cheeses and to discriminate them. However, in the case of production areas with a marked geological complexity, it is considered appropriate to associate additional analytical data to the Sr isotopic composition.
MARCHIONNI, SARA. « Caratteristiche isotopiche dei prodotti agroalimentari (vino) e dei loro substrati geologici con la finalità di definire parametri utili alla loro tracciabilità geografica ». Doctoral thesis, 2014. http://hdl.handle.net/2158/850903.
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