FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (11): 41-44.

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Comparative Study on Antioxidant Activities of Ethanol Extracts of Seven Spices with Two Determination Methods

 ZHANG  Hui-Yun, KONG  Bao-Hua   

  1. 1.College of Food Science,Northeast Agricultural University,Harbin 150030,China;2.College of Food and Bioengineering,Henan University of Science and Technology,Luoyang 471003,China
  • Online:2008-11-15 Published:2011-12-08

Abstract: The antioxidant activities of ethanol extracts seven spices were determined by both TBARS(thiobarbituric acid-reactive substances) and FRAP(ferric reducing/antioxidant power) assay method.Results indicated that extracts of all seven spices have good antioxidant activities,and their antioxidant activities are correlated to the concentrations.The antioxidant activities of seven spice extracts determined by TBARS are in the order:liquorice > rosemary > nutmeg > turmeric > clove > round cardamom > cassia bark,whereas those determined by FRAP are in the order:clove > cassia bark > nutmeg > rosemary > turmeric > liquorice > round cardamom.The orders of antioxidant activities of seven spice extracts determined by TBARS and FRAP assay are different.It showed that the determination of antioxidant activity is closely related to the assay system.

Key words: spice extracts, antioxidant activity, thiobarbituric acid-reactive substances(TBARS), ferric reducing/ antioxidant power(FRAP)