PHENOLIC CONTENTS AND ANTIOXIDANT ACTIVITIES OF DATE PALM (PHOENIX DACTYLIFERA L.) LEAVES

被引：30

作者：

Kriaa, Walid ^{[1
]}

Fetoui, Hamadi ^{[2
]}

Makni, Mohamed ^{[2
]}

Zeghal, Najiba ^{[2
]}

Drira, Nour-Eddine ^{[1
]}

机构：

[1] Fac Sci Sfax, Dept Biol, Plant Biotechnol Lab, Sfax 3000, Tunisia

[2] Fac Sci Sfax, Physiol Anim Lab, Sfax 3000, Tunisia

来源：

INTERNATIONAL JOURNAL OF FOOD PROPERTIES | 2012年 / 15卷 / 06期

关键词：

Antioxidant; Date palm; Flavonoid; Phenolic; Radical scavenging capacity; IN-VITRO ANTIOXIDANT; EMBRYOGENIC SUSPENSION; EXTRACTS; POWER;

D O I：

10.1080/10942912.2010.514673

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The antioxidant capacity and phenolic content of three varieties of Phoenix dactylifera leaves, namely Deglet Nour, Medjhoul, and Barhee, were studied. The antioxidant activities of extracts of different leaf varieties obtained with solvents of different polarity were investigated using assays of 2, 2-diphenyl-2-picrymhydrasyl hydrate radical-scavenging activity, total phenolics and flavonoids amount, condensed tannins, reducing power, and total antioxidant capacity. The results showed that all the extracts exhibited antioxidant and radical-scavenging activities at different magnitudes and potency. The decreasing order of antioxidant and radical-scavenging activities among the extracts assayed were found to be methanol (MeOH) fraction > ethyl acetate fraction > hexane fraction > water extract. Correlation analysis indicated that there is a linear relationship between antioxidant potency, free radical-scavenging ability, and the content of phenolic and flavonoids compounds of Phoenix dactylifera leaf extracts. These results showed that Phoenix dactylifera leaf extracts are a valuable natural antioxidant, which can be applied in both healthy medicine and food industry and biotechnology.

引用

页码：1220 / 1232

页数：13

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