title: Isolation of a 2-Pyrone Compound as an Antioxidant from a Fungus and Its New Reaction Product with 1,1-Diphenyl-2-picrylhydrazyl Radical.
abstract: The indophenol-reducing compound, 4-hydroxy-3,6-dimethyl-2H-pyrane-2-one (I), was isolated from the culture filtrate of an unidentified fungus. I also reacted with the DPPH radical to form a reaction product IV which was determined to be 1-[4-(3,4-dihydro-3,6-dimethyl-2,4-dioxo- 2H-pyran-3-yl)phenyl]-1-phenyl-2-picrylhydrazine. This is the first report describing the formation of an adduct of the DPPH radical and its scavenger.
authors.affiliation: a Laboratory of Applied Microbiology, School of Food and Nutritional Sciences, University of Shizuoka.
authors.forename: A
authors.initials: A
authors.lastname: Hirota
authors.affiliation: a Laboratory of Applied Microbiology, School of Food and Nutritional Sciences, University of Shizuoka.
authors.forename: A
authors.initials: A
authors.lastname: Nemoto
authors.affiliation: a Laboratory of Applied Microbiology, School of Food and Nutritional Sciences, University of Shizuoka.
authors.forename: Y
authors.initials: Y
authors.lastname: Tsuchiya
authors.affiliation: a Laboratory of Applied Microbiology, School of Food and Nutritional Sciences, University of Shizuoka.
authors.forename: H
authors.initials: H
authors.lastname: Hojo
authors.affiliation: a Laboratory of Applied Microbiology, School of Food and Nutritional Sciences, University of Shizuoka.
authors.forename: N
authors.initials: N
authors.lastname: Abe
keywords: antioxidant; indophenol-reducing compound; radical-scavenging activity