Antioxidant potential of protein-rich serum from farmed swan goose (Anser cygnoides): in vitro and in vivo evaluation of antioxidant effects

摘要

As food ingredient, Anser cygnoides is farmed in large scale; however, its blood is underused. The characteristics, stability and antioxidant activities of Powder of farmed A. Cygnoides Serum (FACSP) were investigated. Results showed that FACSP was protein-rich and displayed satisfactory antioxidant activities. In vitro analysis indicated that the IC_(50) values of 2, 2'-azinobis-(3-ethylbenz-thiazoline-6-sulphonate), l,l-diphenyl-2-picrylhydrazyl and hydroxyl radicals were 1.56, 2.76 and 39.55 mg mL~(-1), respectively. In vivo experiment showed that the activity of total superoxide dismutase and content of glutathione of the FACSP-treated groups were enhanced, and the contents of malondialdehyde and protein carbonyl were decreased. The parameters of 400 and 800 mg kg"1 bw day"1 dose groups were equally or approximately to vitamin C. The FACSP shows potential as an antioxidant functional food at a dose of 400 mg kg~(-1) bw day~(-1).