Detection of the addition of Citrus reticulata and hybrids to Citrus sinensis by flavonoids
Identifieur interne : 003626 ( Main/Merge ); précédent : 003625; suivant : 003627Detection of the addition of Citrus reticulata and hybrids to Citrus sinensis by flavonoids
Auteurs : W. C. Ooghe [Belgique] ; C. M. Detavernier [Belgique]Source :
- Journal of agricultural and food chemistry [ 0021-8561 ] ; 1997.
Descripteurs français
- Pascal (Inist)
English descriptors
Abstract
In some European countries there is a legal barrier against the marketing of some citrus juice mixtures under the denomination "orange juice", as allowed under certain conditions by the FDA for pasteurized and canned orange juice and for frozen concentrated orange juice. For this reason methods have to be developed to determine a juice addition of up to 10% Citrus reticulata and hybrids thereof and up to 5% Citrus aurantium. Using HPLC equipped with a photodiode array (PDA) detector we could establish that a combination of the flavanone glycoside (FG) and polymethoxylated flavone (PMF) pattern offers possibilities. For the flavanone glycosides the method is based on the presence of some specific compounds, on the didymin content, on a divergent ratio of hesperidin on narirutin, and/or on an unidentified component. In other cases, however, an F test applied on the relative PMF pattern offers a better solution calculating the % adulteration probability. We could conclude that, for all examined citrus samples added to Citrus sinensis, it is possible to detect the addition of 10% C. reticulata and hybrids thereof and of 5% C. aurantium.
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Pascal:97-0319122Le document en format XML
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C." last="Ooghe">W. C. Ooghe</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>University of Gent, Harelbekestraat 72</s1><s2>9000 Gent</s2><s3>BEL</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Belgique</country><placeName><region type="province" nuts="2">Province de Flandre-Orientale</region><settlement type="city">Gand</settlement></placeName></affiliation></author><author><name sortKey="Detavernier, C M" sort="Detavernier, C M" uniqKey="Detavernier C" first="C. M." last="Detavernier">C. M. Detavernier</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>University of Gent, Harelbekestraat 72</s1><s2>9000 Gent</s2><s3>BEL</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Belgique</country><placeName><region type="province" nuts="2">Province de Flandre-Orientale</region><settlement type="city">Gand</settlement></placeName></affiliation></author></analytic><series><title level="j" type="main">Journal of agricultural and food chemistry</title><title level="j" type="abbreviated">J. agric. food chem.</title><idno type="ISSN">0021-8561</idno><imprint><date when="1997">1997</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of agricultural and food chemistry</title><title level="j" type="abbreviated">J. agric. food chem.</title><idno type="ISSN">0021-8561</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adulteration</term><term>Flavonoid</term><term>Orange juice</term><term>Quality control</term><term>Species specificity</term><term>Variety</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Jus d'orange</term><term>Spécificité espèce</term><term>Variété</term><term>Adultération</term><term>Contrôle qualité</term><term>Flavonoïde</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In some European countries there is a legal barrier against the marketing of some citrus juice mixtures under the denomination "orange juice", as allowed under certain conditions by the FDA for pasteurized and canned orange juice and for frozen concentrated orange juice. For this reason methods have to be developed to determine a juice addition of up to 10% Citrus reticulata and hybrids thereof and up to 5% Citrus aurantium. Using HPLC equipped with a photodiode array (PDA) detector we could establish that a combination of the flavanone glycoside (FG) and polymethoxylated flavone (PMF) pattern offers possibilities. For the flavanone glycosides the method is based on the presence of some specific compounds, on the didymin content, on a divergent ratio of hesperidin on narirutin, and/or on an unidentified component. In other cases, however, an F test applied on the relative PMF pattern offers a better solution calculating the % adulteration probability. We could conclude that, for all examined citrus samples added to Citrus sinensis, it is possible to detect the addition of 10% C. reticulata and hybrids thereof and of 5% C. aurantium.</div></front></TEI><affiliations><list><country><li>Belgique</li></country><region><li>Province de Flandre-Orientale</li></region><settlement><li>Gand</li></settlement></list><tree><country name="Belgique"><region name="Province de Flandre-Orientale"><name sortKey="Ooghe, W C" sort="Ooghe, W C" uniqKey="Ooghe W" first="W. C." last="Ooghe">W. C. Ooghe</name></region><name sortKey="Detavernier, C M" sort="Detavernier, C M" uniqKey="Detavernier C" first="C. M." last="Detavernier">C. M. Detavernier</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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