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Fresh Israeli Jaffa blond (Shamouti) orange and Israeli Jaffa red Star Ruby (Sunrise) grapefruit juices affect plasma lipid metabolism and antioxidant capacity in rats fed added cholesterol.

Identifieur interne : 002907 ( Main/Exploration ); précédent : 002906; suivant : 002908

Fresh Israeli Jaffa blond (Shamouti) orange and Israeli Jaffa red Star Ruby (Sunrise) grapefruit juices affect plasma lipid metabolism and antioxidant capacity in rats fed added cholesterol.

Auteurs : Shela Gorinstein [Israël] ; Hanna Leontowicz ; Maria Leontowicz ; Ryszard Krzeminski ; Mikolaj Gralak ; Olga Martin-Belloso ; Efren Delgado-Licon ; Ratiporn Haruenkit ; Elena Katrich ; Yong-Seo Park ; Soon-Teck Jung ; Simon Trakhtenberg

Source :

RBID : pubmed:15264925

English descriptors

Abstract

The bioactivity of Israeli Jaffa blond (Shamouti) fresh orange and Israeli Jaffa red Star Ruby (Sunrise) grapefruit juices was investigated in vitro and in vivo. The contents of bioactive compounds of these juices were determined. The influence of bioactive compounds on plasma lipids and plasma antioxidant activity in rats fed cholesterol-containing and cholesterol-free diets was assessed. Significant differences in the contents of dietary fibers were not found. The contents of total polyphenols, flavonoids, and anthocyanins in fresh orange and grapefruit juices were 962.1 +/- 27.2 and 906.9 +/- 27.1; 50.1 +/- 3.3 and 44.8 +/- 3.2; and 69.9 +/- 5.6 and 68.7 +/- 5.5 microg/mL, respectively. The antioxidant potential measured by the scavenging activity against nitric oxide, the beta-carotene-linoleate model system (beta-carotene), and the 1,1-diphenyl-2-picrylhydrazyl and 2,2'-azino-bis(3-ethyl-benzothiazoline-6-sulfonic acid) diamonium salt assays was higher in orange juice but not significantly. A high level of correlation between contents of total polyphenols and flavonoids and antioxidant potential values of both juices was found. Diets supplemented with orange and to a lesser degree with grapefruit juices improved plasma lipid metabolism only in rats fed added cholesterol. However, an increase in the plasma antioxidant activity was observed in both groups. In conclusion, fresh orange and grapefruit juices contain high quantities of bioactive compounds, which guarantee their high antioxidant potential, and the positive influence on plasma lipid metabolism and plasma antioxidant activity could make fresh orange and grapefruit juices a valuable supplement for disease-preventing diets.

DOI: 10.1021/jf040006y
PubMed: 15264925


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Le document en format XML

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<name sortKey="Gorinstein, Shela" sort="Gorinstein, Shela" uniqKey="Gorinstein S" first="Shela" last="Gorinstein">Shela Gorinstein</name>
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<name sortKey="Leontowicz, Hanna" sort="Leontowicz, Hanna" uniqKey="Leontowicz H" first="Hanna" last="Leontowicz">Hanna Leontowicz</name>
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<name sortKey="Gralak, Mikolaj" sort="Gralak, Mikolaj" uniqKey="Gralak M" first="Mikolaj" last="Gralak">Mikolaj Gralak</name>
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<name sortKey="Martin Belloso, Olga" sort="Martin Belloso, Olga" uniqKey="Martin Belloso O" first="Olga" last="Martin-Belloso">Olga Martin-Belloso</name>
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<name sortKey="Delgado Licon, Efren" sort="Delgado Licon, Efren" uniqKey="Delgado Licon E" first="Efren" last="Delgado-Licon">Efren Delgado-Licon</name>
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<name sortKey="Haruenkit, Ratiporn" sort="Haruenkit, Ratiporn" uniqKey="Haruenkit R" first="Ratiporn" last="Haruenkit">Ratiporn Haruenkit</name>
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<name sortKey="Katrich, Elena" sort="Katrich, Elena" uniqKey="Katrich E" first="Elena" last="Katrich">Elena Katrich</name>
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<name sortKey="Park, Yong Seo" sort="Park, Yong Seo" uniqKey="Park Y" first="Yong-Seo" last="Park">Yong-Seo Park</name>
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<name sortKey="Jung, Soon Teck" sort="Jung, Soon Teck" uniqKey="Jung S" first="Soon-Teck" last="Jung">Soon-Teck Jung</name>
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<term>Citrus paradisi (chemistry)</term>
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<div type="abstract" xml:lang="en">The bioactivity of Israeli Jaffa blond (Shamouti) fresh orange and Israeli Jaffa red Star Ruby (Sunrise) grapefruit juices was investigated in vitro and in vivo. The contents of bioactive compounds of these juices were determined. The influence of bioactive compounds on plasma lipids and plasma antioxidant activity in rats fed cholesterol-containing and cholesterol-free diets was assessed. Significant differences in the contents of dietary fibers were not found. The contents of total polyphenols, flavonoids, and anthocyanins in fresh orange and grapefruit juices were 962.1 +/- 27.2 and 906.9 +/- 27.1; 50.1 +/- 3.3 and 44.8 +/- 3.2; and 69.9 +/- 5.6 and 68.7 +/- 5.5 microg/mL, respectively. The antioxidant potential measured by the scavenging activity against nitric oxide, the beta-carotene-linoleate model system (beta-carotene), and the 1,1-diphenyl-2-picrylhydrazyl and 2,2'-azino-bis(3-ethyl-benzothiazoline-6-sulfonic acid) diamonium salt assays was higher in orange juice but not significantly. A high level of correlation between contents of total polyphenols and flavonoids and antioxidant potential values of both juices was found. Diets supplemented with orange and to a lesser degree with grapefruit juices improved plasma lipid metabolism only in rats fed added cholesterol. However, an increase in the plasma antioxidant activity was observed in both groups. In conclusion, fresh orange and grapefruit juices contain high quantities of bioactive compounds, which guarantee their high antioxidant potential, and the positive influence on plasma lipid metabolism and plasma antioxidant activity could make fresh orange and grapefruit juices a valuable supplement for disease-preventing diets.</div>
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<name sortKey="Delgado Licon, Efren" sort="Delgado Licon, Efren" uniqKey="Delgado Licon E" first="Efren" last="Delgado-Licon">Efren Delgado-Licon</name>
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<name sortKey="Trakhtenberg, Simon" sort="Trakhtenberg, Simon" uniqKey="Trakhtenberg S" first="Simon" last="Trakhtenberg">Simon Trakhtenberg</name>
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