title: Antimicrobial and antioxidant activities of Russula delica Fr.
abstract: Russula delica Fr. is a well known macrofungi which is used as a food in Turkey. The ethanolic extract of R. delica exhibited antimicrobial activity against some of the tested foodborne and spoilage bacteria. The phenolic composition of R. delica ethanolic extract was analyzed by high performance liquid chromatography (HPLC). The major component in R. delica ethanolic extract was catechin (5.33 mg/L). Antioxidant activities of the ethanolic extract of R. delica was evaluated by using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals scavenging and chelating ability on ferrous ions assays. Scavenging effect on DPPH radicals was 26% at 10mg/ml and chelating effects on ferrous ions was 58% at 5mg/ml. In addition, the amounts of total phenol content (6.23 mg/g), ascorbic acid (2.93 mg/g), beta-carotene (0.11 mg/g) and lycopene (0.03 mg/g) in the macrofungi ethanolic extract were determined.
authors.affiliation: Department of Biology, Faculty of Science and Art, Gazi University, Ankara 06500, Turkey.
authors.forename: Tumay
authors.initials: T
authors.lastname: Yaltirak
authors.forename: Belma
authors.initials: B
authors.lastname: Aslim
authors.forename: Sahlan
authors.initials: S
authors.lastname: Ozturk
authors.forename: Hakan
authors.initials: H
authors.lastname: Alli
mesh_terms: D000363:Agaricales / Q000737:chemistry*; D000890:Anti-Infective Agents / Q000494:pharmacology*; D000975:Antioxidants / Q000494:pharmacology*; D001205:Ascorbic Acid / Q000032:analysis; D001713:Biphenyl Compounds / Q000737:chemistry; D002338:Carotenoids / Q000032:analysis; D002392:Catechin / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D000431:Ethanol; D016166:Free Radical Scavengers / Q000737:chemistry / Q000494:pharmacology; D005609:Free Radicals / Q000737:chemistry; D007202:Indicators and Reagents; D007502:Iron Chelating Agents / Q000737:chemistry / Q000494:pharmacology; D000077276:Lycopene; D008826:Microbial Sensitivity Tests; D010636:Phenols / Q000032:analysis; D010851:Picrates / Q000737:chemistry; D010936:Plant Extracts / Q000494:pharmacology; D012997:Solvents; D019207:beta Carotene / Q000032:analysis
chemical_list: D000890:Anti-Infective Agents; D000975:Antioxidants; D001713:Biphenyl Compounds; D016166:Free Radical Scavengers; D005609:Free Radicals; D007202:Indicators and Reagents; D007502:Iron Chelating Agents; D010636:Phenols; D010851:Picrates; D010936:Plant Extracts; D012997:Solvents; D019207:beta Carotene; D002338:Carotenoids; D000431:Ethanol; D002392:Catechin; C004931:1,1-diphenyl-2-picrylhydrazyl; D001205:Ascorbic Acid; D000077276:Lycopene