2005•Food ScienceRequires access
Study on Scavenging Capacity of Free Radical by Natural Mulberry Red Pigment in vitro
HU Qing-ping
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Abstract
By using the superoxide radical system, hydroxyl radical system, H2O2 radical system,oxidation system of linolic acid induced by alkane radical and system of DPPH, the antioxidation activities of mulberry red pigment were studied and compared with VC. The results showed: the mulberry red pigment had different scavenging effects in these radical systems, and the scavenging capacity of mulberry red pigment in the superoxide radical system, hydroxyl radical system and H2O2 radical system showed good performance and its scavenging capacity was stronger than VC. The scavenging capacity to DPPH was lower than VC. In the selected concentration range, its capacity to alkane radical was not obvious, and almost equal to VC, with scavenging rate lower than 50%.Mulberry red pigment hence was a good kind of natural radical scavenger.