Physico-chemical properties and DPPH-ABTS scavenging activity of some local pomegranate (Punica granatum) ecotypes

被引：96

作者：

Elfalleh, Walid ^{[1
]}

Nasri, Nizar ^{[2
]}

Marzougui, Nidhal ^{[1
]}

Thabti, Ines ^{[1
]}

M'rabet, Abdessalem ^{[1
]}

Yahya, Yassine ^{[1
]}

Lachiheb, Belgacem ^{[1
]}

Guasmi, Ferdaous ^{[1
]}

Ferchichi, Ali ^{[1
]}

机构：

[1] Inst Reg Arides Medenine, Lab Aridoculture & Cultures Oasiennes, Tunis 4119, Tunisia

[2] Univ Tunis El Manar, Fac Sci Tunis, Biochim Lab, Tunis, Tunisia

来源：

INTERNATIONAL JOURNAL OF FOOD SCIENCES AND NUTRITION | 2009年 / 60卷

关键词：

Punica granatum L; pomegranate components; polyphenols; flavonoids; DPPH; ABTS(+); ANTIOXIDANT ACTIVITY; QUANTIFICATION; EXTRACTS; JUICE;

D O I：

10.1080/09637480903067037

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Peels and fresh pomegranate extracts were used in the present study for the determination of the physic-chemical properties and DPPH-ABTS scavenging activities. Total sugars of juice are fructose (ca. 7 g/100 ml) and glucose (ca. 8 g/100 ml). Contents of soluble proteins in juice extracts are about 7 g/l (Bradford assays) and 22% (Kjeldhal assays) from dry pulp. Minerals in peel and juice are respectively 9.43+/-0.93 and 9.46+/-1.05 mg/100 ml for posphorus and 210.86+/-10.70 and 271.94+/-60.59 mg/100 g for potassium. The sodium contents are nearly 7 mg/100 ml in both peel and juice. Highly antioxidant contents in peels were confirmed. Free radical scavenging is about 3.58+/-0.38 mu g/ml in peel. The antioxidant capacity value determined by ABTS was 7.364+/-0.403 mM Trolox equivalent antioxidant capacity/100 g dry weight. These findings implied that bio-active compounds from the peel might be potential resources for the development of antioxidant function dietary food.

引用

页码：197 / 210

页数：14

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