Effect on scavenging active oxygen radicals of the brown pigment extracted from chestnut shell

The paper studied the scavenging active oxygen radicals of brown pigment from chestnut shell.The results showed that the brown pigment had scavenging effects on hydroxyl radical,superoxide anion radical and aliphatic radicals on lipid-peroxidation.In the range of test concentration,the maximum scavenging or inhibition rate of the brown pigment to hydroxyl radical generated by Fenton reaction,superoxide anion radical generated by illuminating riboflavin system and linoleic acid auto-oxidation was 83.0%,82.1% and 88.5% respectively.The results suggested that the brown pigment from chestnut shell was an excellent natural antioxidant and free radicals scavenger.