FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (15 ): 75-77.doi: 10.7506/spkx1002-6630-200915016

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Antioxidant Activity of Total Saponins from Gardenia jasminoides Fruits

SU Wei,ZHAO Li,LIU Jian-tao,LIU Hua,WU Xiao-hua,LIU Dan,CHEN Yu-xia,HUANG Yu   

  1. College of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, China
  • Received:2009-04-23 Online:2009-08-01 Published:2010-12-29
  • Contact: SU Wei E-mail:suwei74@hotmail.com

Abstract:

The antioxidant activity in vitro of total saponins from dried ripe fruits of Gardenia jasminoides was comprehensively evaluated in terms of the, ·OH and O2· radicals scavenging activities and the protection effect against Cu2+-induced LDL oxidative modification. Saponins were obtained using petroleum ether by soxhlet extraction and then subjected to purification with cation exchange column followed by D1400 macroporous resin. Total saponins from Gardenia jasminoides fruits exhibited strong antioxidant activity against free radicals of O2· and ·OH and significantly inhibited Cu2+ induced LDL oxidation in a concentration-dependent manner.

Key words: Gardenia jasminoides, total saponins, antioxidation, free radicals scavenging

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