FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (23 ): 41-43.doi: 10.7506/spkx1002-6300-200923007

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Free Radical Scavenging Effects of Extracts from Various Parts of Citrus

WU Gang,PENG Mi-jun*,PENG Sheng   

  1. Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China
  • Received:2009-07-11 Online:2009-12-01 Published:2010-12-29
  • Contact: PENG Mi-jun E-mail:pengmj163@163.com

Abstract:

This study was aiming to find natural and efficient radical scavenger. Different parts of citrus (branch, leaves and skin) were extracted by water and organic solvent. The radical scavenging activities of citrus extracts were determined by methylene blue spectrophotometry. The results showed that the aqueous extract of citrus branch possessed the highest radical scavenging efficiency and the activity increased dose-dependently. In addition of 2 ml of 2 mg / ml solution to reaction system, the scavenging activity reached 78.36%, which is higher than those of the Eucommia ulmoides Oliver leave extract, chlorogenic acid and polyphenols. High correlation was observed between the scavenging effeiciency and the content of flavonoids in citrus branches.

Key words: different parts of citrus, extract, methylene blu, hydroxy free radical scavenging activity

CLC Number: