Study on DPPH Free Radical Scavenging Efficiency of Flavonoids from Jujube Pit

FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (2): 67-70.

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Study on DPPH Free Radical Scavenging Efficiency of Flavonoids from Jujube Pit

ZHANG Zhi-Guo, CHEN Jin-Ping, SHAO Xiu-Zhi, WANG Cheng-Zhong

1. College of Food and Biological Engineering, Shandong Institute of Light Industry, Jinan 250353, China; 2. Department of Food Engineering, Shannxi Normal University, Xi’an 710062, China

Online:2007-02-15 Published:2011-12-31

Abstract

Abstract: Flavonoids from jujube pit were extracted with 60% percent ethanol and separated by AB-8 macroporous adsorption resin.DPPH free radical scavenging efficiency of flavonoids from jujube pit was studied first in this experiment. The results showed that the flavonoids from jujube pit have powerful scavenging efficiency to DPPH free radical. Its IC50 is 6.5μg/ml. The increase in the degree of DPPH free radical scavenging efficiency of flavonoids from jujube is concentration dependent.

Key words: flavonoids from jujube pit, DPPH free radical

ZHANG Zhi-Guo, CHEN Jin-Ping, SHAO Xiu-Zhi, WANG Cheng-Zhong. Study on DPPH Free Radical Scavenging Efficiency of Flavonoids from Jujube Pit[J]. FOOD SCIENCE, 2007, 28(2): 67-70.

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Study on DPPH Free Radical Scavenging Efficiency of Flavonoids from Jujube Pit

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