Free Radical Scavenging Capacity of Carminic Acid

doi:10.7506/spkx1002-6630-201017017

FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (17): 73-76.doi: 10.7506/spkx1002-6630-201017017

• Basic Research • Previous Articles Next Articles

Free Radical Scavenging Capacity of Carminic Acid

GUO Yuan-heng，MA Li-yi，ZHENG Hua，ZHANG Hong*，GAN Jin，LI Kun

Key Laboratory of Cultivation and Utilization of Resource Insects, State Forestry Administration, Research Institute of Resource
Insects, Chinese Academy of Forestry, Kunming 650224, China

Received:2010-06-13 Revised:2010-07-27 Online:2010-09-15 Published:2010-12-29
Contact: Zhang Hong E-mail:kmzhhong@163.com

Abstract

Abstract:

In order to evaluate the ability of carminic acid to scavenge DPPH, ABTS+ and superoxide anion radicals, the absorbance changes of the solutions of these three free radicals at certain characteristic wavelengths before and after addition of this acid were measured. Meanwhile, comparison among scavenging activities of carminic acid against these three free radicals was carried out. Carminic acid at certain concentrations could scavenge all of these free radicals and presented scavenging ratios of around 83%, 85% and 46.84% against DPPH, ABTS+ and superoxide anion radicals, respectively. This investigation reveals that carminic acid has certain free radical scavenging activity, thereby providing a food additive.

Key words: carminic acid, ascorbic acid, free radicals, scavenging activity

CLC Number:

GUO Yuan-heng，MA Li-yi，ZHENG Hua，ZHANG Hong*，GAN Jin，LI Kun. Free Radical Scavenging Capacity of Carminic Acid[J]. FOOD SCIENCE, 2010, 31(17): 73-76.

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Free Radical Scavenging Capacity of Carminic Acid

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