title: Antioxidant compounds from propolis collected in Anhui, China.
abstract: The antioxidant activities of the chloroform, ethyl acetate and n-butanol extract fractions from propolis collected in Anhui, China were evaluated in this study. The ethyl acetate fraction contained the highest amount of total phenolics and total flavonoids, and showed the greatest 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) radical scavenging capacities and Ferric Reducing/Antioxidant Power (FRAP). The antioxidant activity of twenty-two compounds isolated from the ethyl acetate fraction was also evaluated using the above-mentioned three assays. The results indicated that phenolics contributed to the antioxidant activity of propolis collected in Anhui, China. Therefore, propolis collected in Anhui, China and its phenolics might be used as a natural antioxidant.
authors.affiliation: School of Pharmacy, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Minhang District, Shanghai 200240, China. YHS@sjtu.edu.cn
authors.forename: Haisha
authors.initials: H
authors.lastname: Yang
authors.forename: Yuqiong
authors.initials: Y
authors.lastname: Dong
authors.forename: Huijing
authors.initials: H
authors.lastname: Du
authors.forename: Haiming
authors.initials: H
authors.lastname: Shi
authors.forename: Yunhua
authors.initials: Y
authors.lastname: Peng
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Li
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000494:pharmacology*; D002681:China; D015394:Molecular Structure; D011429:Propolis / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D011429:Propolis