Rapid assessment of vitamin A activity through objective color measurements for the quality control of orange juices with diverse carotenoid profiles.
Identifieur interne : 002276 ( Main/Curation ); précédent : 002275; suivant : 002277Rapid assessment of vitamin A activity through objective color measurements for the quality control of orange juices with diverse carotenoid profiles.
Auteurs : Antonio J. Meléndez-Martínez [Espagne] ; Isabel M. Vicario ; Francisco J. HerediaSource :
- Journal of agricultural and food chemistry [ 0021-8561 ] ; 2007.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Carotenoids, Vitamin A.
- analysis : Beverages.
- chemistry : Citrus sinensis, Fruit.
- Color, Quality Control, Spectrophotometry.
Abstract
The evaluation of the vitamin A activity of foods is important for the establishment of Dietary Reference Intakes and food composition databases, food labeling, etc. Regarding orange juice, probably the most accepted fruit product in much of the world, the vitamin A labeling has been reported to be defective and misleading, which revealed the inadequacy of the quality control system. In this study, the color and the vitamin A activity (in terms of retinol activity equivalents) of diverse orange juices were evaluated as well as the correlations existing between them. Correlation coefficients above 0.9 were found for some color parameters considered jointly and individually, so appropriate equations to assess the vitamin A activity of the samples from them were obtained. The results of the analysis of variance (p < 0.05) revealed that there were no differences between the data derived from the chromatographic analyses and those calculated from the color parameters, thereby validating the assessment of the vitamin A activity of the juices through objective measurements of color, whose advantages (rapidity, versatility, nondestructiveness, portability, etc.) make of it a powerful tool for quality control purposes in the food industry.
DOI: 10.1021/jf0635412
PubMed: 17381120
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pubmed:17381120Le document en format XML
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Meléndez-Martínez</name><affiliation wicri:level="2"><nlm:affiliation>Laboratory of Food Color & Quality, Departament of Nutrition and Food Science. Faculty of Pharmacy, University of Seville, 41012 Seville, Spain.</nlm:affiliation><country xml:lang="fr">Espagne</country><wicri:regionArea>Laboratory of Food Color & Quality, Departament of Nutrition and Food Science. Faculty of Pharmacy, University of Seville, 41012 Seville</wicri:regionArea><placeName><region nuts="2" type="communauté">Andalousie</region></placeName></affiliation></author><author><name sortKey="Vicario, Isabel M" sort="Vicario, Isabel M" uniqKey="Vicario I" first="Isabel M" last="Vicario">Isabel M. Vicario</name></author><author><name sortKey="Heredia, Francisco J" sort="Heredia, Francisco J" uniqKey="Heredia F" first="Francisco J" last="Heredia">Francisco J. Heredia</name></author></analytic><series><title level="j">Journal of agricultural and food chemistry</title><idno type="ISSN">0021-8561</idno><imprint><date when="2007" type="published">2007</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Beverages (analysis)</term><term>Carotenoids (analysis)</term><term>Citrus sinensis (chemistry)</term><term>Color</term><term>Fruit (chemistry)</term><term>Quality Control</term><term>Spectrophotometry</term><term>Vitamin A (analysis)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Carotenoids</term><term>Vitamin A</term></keywords><keywords scheme="MESH" qualifier="analysis" xml:lang="en"><term>Beverages</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Citrus sinensis</term><term>Fruit</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Color</term><term>Quality Control</term><term>Spectrophotometry</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The evaluation of the vitamin A activity of foods is important for the establishment of Dietary Reference Intakes and food composition databases, food labeling, etc. Regarding orange juice, probably the most accepted fruit product in much of the world, the vitamin A labeling has been reported to be defective and misleading, which revealed the inadequacy of the quality control system. In this study, the color and the vitamin A activity (in terms of retinol activity equivalents) of diverse orange juices were evaluated as well as the correlations existing between them. Correlation coefficients above 0.9 were found for some color parameters considered jointly and individually, so appropriate equations to assess the vitamin A activity of the samples from them were obtained. The results of the analysis of variance (p < 0.05) revealed that there were no differences between the data derived from the chromatographic analyses and those calculated from the color parameters, thereby validating the assessment of the vitamin A activity of the juices through objective measurements of color, whose advantages (rapidity, versatility, nondestructiveness, portability, etc.) make of it a powerful tool for quality control purposes in the food industry.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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