Extraction and Nitrosation Inhibition Activity of Total Flavonoids from Punica granatum L. Peel

doi:10.7506/spkx1002-6630-201102026

FOOD SCIENCE ›› 2011, Vol. 32 ›› Issue (2 ): 111-114.doi: 10.7506/spkx1002-6630-201102026

• Processing Technology • Previous Articles Next Articles

Extraction and Nitrosation Inhibition Activity of Total Flavonoids from Punica granatum L. Peel

WU Jia，XIE Cheng-xi*

Physical and Chemical Analysis Center, Xinjiang University, Urumqi 830046, China

Received:2010-03-22 Revised:2010-12-20 Online:2011-01-25 Published:2011-01-10
Contact: XIE Cheng-xi* E-mail:xiecx@xju.edu.cn

Abstract

Abstract:

The optimal conditions for total flavonoids extraction from Punica granatum L. peel were studied by orthogonal array design and their abilities to scavenge nitrite and inhibit nitrosamines were tested spectrophotometrically. A maximum extraction yield of 84.8 mg flavonoids/g peel was obtained when a 60-fold volume of 60% aqueous ethanol solution was utilized to extract Punica granatum L. peel for 40 min with the assistance of sonication at 150 mA electric current intensity, and the crude extract exhibited a maximum sodium nitrite scavenging rate of 81.2% and a maximum block rate of 67.0% against the synthesis of nitrosamines, suggesting a strong ability to inhibit nitrosation.

Key words: Punica granatum L. peel, total flavonoids, orthogonal array design, scavenging；blocking

CLC Number:

O623.54

WU Jia，XIE Cheng-xi*. Extraction and Nitrosation Inhibition Activity of Total Flavonoids from Punica granatum L. Peel[J]. FOOD SCIENCE, 2011, 32(2 ): 111-114.

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Extraction and Nitrosation Inhibition Activity of Total Flavonoids from Punica granatum L. Peel

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