title: Comparative study of antioxidant activities and total phenolic content of selected edible wild mushrooms.
abstract: The present study aims to assess the antioxidant activities (AOA) and total phenolic content (TPC) of water extracts of selected edible wild mushrooms: Pleurotus porrigens, Schizophyllum commune, Hygrocybe conica, and Lentinus ciliatus. The AOA were evaluated against DPPH radical and ABTS radical cation scavenging ability, ferric-reducing antioxidant power (FRAP) and beta-carotene-linoleate bleaching (beta-CB) assays, and the Folin-Ciocalteu method for TPC. BHA was used as reference. P. porrigens showed significantly higher (p < 0.05) DPPH* scavenging ability (90.78 +/- 0.30%) and FRAP (6.37 +/- 0.22 mM FE/100g), while Sch. commune showed significantly higher (p < 0.05) ABTS*+ inhibition activity (94.96 +/- 0.70%) and beta-CB inhibition activity (94.18 +/- 0.17%), respectively. TPC was found in a descending order of P. poriggens > L. ciliatus = Pleurotus ostreatus (cultivated) > H. conica = Sch. commune. Positive correlation was observed between the AOA and TPC. When compared to BHA (2 mM), P. porrigens showed significantly higher (p < 0.05) DPPH* scavenging ability and reducing power, while Sch. commune showed comparable DPPH* scavenging ability and ABTS*+ inhibition activity. All the mushrooms have better ABTS*+ inhibition activity than BHA (1 mM). The beta-CB inhibition activity of BHA was significantly higher than those of edible wild mushrooms. The water extracts of edible wild mushrooms showed potent antioxidant activities compared to BHA to a certain extent.
authors.affiliation: Department of Food Science & Nutrition, Faculty of Applied Sciences, UCSI University, No. 1, Jalan Menara Gading, UCSI Heights, 56000 Kuala Lumpur, Malaysia. hsyim@ucsi.edu.my
authors.forename: Hip Seng
authors.initials: HS
authors.lastname: Yim
authors.forename: Fook Yee
authors.initials: FY
authors.lastname: Chye
authors.forename: Mee Yee
authors.initials: MY
authors.lastname: Lee
authors.forename: Patricia
authors.initials: P
authors.lastname: Matanjun
authors.forename: Siew Eng
authors.initials: SE
authors.lastname: How
authors.forename: Chun Wai
authors.initials: CW
authors.lastname: Ho
mesh_terms: D000363:Agaricales / Q000737:chemistry*; D000975:Antioxidants / Q000494:pharmacology*; D001713:Biphenyl Compounds / Q000378:metabolism; D002083:Butylated Hydroxyanisole / Q000494:pharmacology; D045424:Complex Mixtures / Q000737:chemistry / Q000494:pharmacology*; D016166:Free Radical Scavengers / Q000494:pharmacology*; D010636:Phenols / Q000032:analysis / Q000494:pharmacology*; D010851:Picrates / Q000378:metabolism; D019207:beta Carotene / Q000378:metabolism
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D045424:Complex Mixtures; D016166:Free Radical Scavengers; D010636:Phenols; D010851:Picrates; D019207:beta Carotene; D002083:Butylated Hydroxyanisole; C004931:1,1-diphenyl-2-picrylhydrazyl