title: Antioxidant activity and phenolic compounds of Holotrichia parallela Motschulsky extracts.
abstract: Insects have been relatively unexplored as potential sources of natural antioxidants. We report the antioxidant activity of extracts of the adult large black chafer beetle Holotrichia parallela Motschulsky, a common crop pest in China. The antioxidant activity of the ethanolic extract (EE) and the water extract (WE) of adult H. parallela were evaluated by four different in vitro assays. EE showed potent metal-chelating activity and inhibition of lipid peroxidation. WE proved to be an excellent antioxidant in the scavenging of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals and metal-chelating activity. Catechin was identified in the ethanolic extract and proteins were the main components in the water extracts. Both compounds could contribute to the antioxidant activity of the species. These results suggest that adult H. parallela might be used as a nutraceutical to alleviate oxidate-induced diseases and as a natural antioxidant additive in the food industry.
authors: Shandong Peanut Research Institute, No. 126 Fushan Road, 266100 Qingdao, Shandong, People's Republic of China.
authors: Shaofang
authors: S
authors: Liu
authors: Jie
authors: J
authors: Sun
authors: Lina
authors: L
authors: Yu
authors: Chushu
authors: C
authors: Zhang
authors: Jie
authors: J
authors: Bi
authors: Feng
authors: F
authors: Zhu
authors: Mingjing
authors: M
authors: Qu
authors: Qingli
authors: Q
authors: Yang
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000737:chemistry*; D002681:China; D001517:Coleoptera / Q000737:chemistry*; D008516:Medicine, Chinese Traditional; D010636:Phenols / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D010636:Phenols