FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (15): 121-125.doi: 10.7506/spkx1002-6630-201015027

• Basic Research • Previous Articles     Next Articles

Using ESR for Measuring DPPH Free Radical Scavenging Activity of Gingerol Oleoresin

GE Qing-feng,SONG Ming-jun,GU Lin*   

  1. School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China
  • Received:2010-04-20 Online:2010-08-15 Published:2010-12-29
  • Contact: GU Lin* E-mail:gulin@yzu.edu.cn

Abstract:

This study investigated the use of ESR for measuring the scavenging effect of gingerol oleoresin on DPPH free radicals. DPPH free radicals could not be detected after 5 min exposure to half molar amount of gingerol, an antioxidant component contained in gingerol oleoresin. The percentage of scavenged DPPH free radicals was 50% when the molar ratio of gingerol to DPPH free radicals was 1:4.

Key words: ESR, ginger oleoresin, scavenging rate of DPPH free radicals

CLC Number: