title: Physiological activities of garlic extracts as affected by habitat and solvents.
abstract: Physiological activities of Korean-grown garlic (GKG) and Chinese-grown garlic (GCG) were examined. Nitrite-scavenging activity (NSA), superoxide dismutase (SOD)-like activity, and electron-donating ability (EDA) of garlic extracted with water or with either 50% or 100% ethanol were measured. NSA was optimized at pH 1.2 and was highest in water and 50% ethanol extracts of both origins. SOD-like activities of water or 50% ethanol extracts from both Korea and China were 48.43-63.89% lower than those of 1% or 0.1% L-ascorbate solutions. SOD-like activities of GKG extracts were higher than those of GCG extracts, and those of water extracts of samples were highest. EDAs of GKG extracts were higher (32.51-43.74%) than those of GCG extracts, while those of both sample extracts were lower than 1% or 0.1% L-ascorbate solutions.
authors.affiliation: Korea Food Research Institute, Seongnam, South Korea. hyunku@kfri.re.kr
authors.forename: Hyun-Ku
authors.initials: HK
authors.lastname: Kim
authors.forename: Su-Hyang
authors.initials: SH
authors.lastname: Ye
authors.forename: Tae-Soo
authors.initials: TS
authors.lastname: Lim
authors.forename: Tae-Youl
authors.initials: TY
authors.lastname: Ha
authors.forename: Joong-Ho
authors.initials: JH
authors.lastname: Kwon
mesh_terms: D001205:Ascorbic Acid; D002681:China; D004777:Environment; D004791:Enzyme Inhibitors / Q000494:pharmacology; D000431:Ethanol; D005419:Flavonoids / Q000032:analysis; D016166:Free Radical Scavengers; D005737:Garlic / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007723:Korea; D014442:Monophenol Monooxygenase / Q000037:antagonists & inhibitors; D009573:Nitrites / Q000737:chemistry; D010636:Phenols / Q000032:analysis; D010936:Plant Extracts / Q000737:chemistry* / Q000378:metabolism; D059808:Polyphenols; D012996:Solutions; D012997:Solvents; D013441:Sulfinic Acids / Q000032:analysis; D013482:Superoxide Dismutase / Q000378:metabolism; D014867:Water
chemical_list: D004791:Enzyme Inhibitors; D005419:Flavonoids; D016166:Free Radical Scavengers; D009573:Nitrites; D010636:Phenols; D010936:Plant Extracts; D059808:Polyphenols; D012996:Solutions; D012997:Solvents; D013441:Sulfinic Acids; C100040:thiosulfinic acids; D014867:Water; D000431:Ethanol; D014442:Monophenol Monooxygenase; D013482:Superoxide Dismutase; D001205:Ascorbic Acid