title: [Assessment of antioxidant activity of natural compound by water- and lipid-soluble antioxidant factor].
abstract: We evaluated the antioxidant activity of natural compounds in water-soluble and lipid-soluble phases and found that ferulic acid, quercetin and caffeic acid showed stronger activity in the water-soluble phase. Various fractions isolated from Bidens pilosa showed this activity mainly in the water-soluble phase. Antioxidant activity in the lipid-soluble phase of propolis depended on the lipophilic extraction.
authors.affiliation: Chigasaki Municipal Hospital, Chigasaki 253-0042, Japan. kusuri@mqi.biglobe.ne.jp
authors.forename: Eiji
authors.initials: E
authors.lastname: Usami
authors.forename: Genjiro
authors.initials: G
authors.lastname: Kusano
authors.forename: Takanori
authors.initials: T
authors.lastname: Katayose
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Wachi
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Seyama
mesh_terms: D000975:Antioxidants / Q000302:isolation & purification / Q000494:pharmacology*; D031176:Bidens; D002109:Caffeic Acids / Q000302:isolation & purification / Q000494:pharmacology*; D003373:Coumaric Acids / Q000302:isolation & purification / Q000494:pharmacology*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D005609:Free Radicals / Q000037:antagonists & inhibitors*; D008055:Lipids; D011429:Propolis / Q000737:chemistry*; D011794:Quercetin / Q000302:isolation & purification / Q000494:pharmacology*; D012995:Solubility; D014867:Water
chemical_list: D000975:Antioxidants; D002109:Caffeic Acids; D003373:Coumaric Acids; D004365:Drugs, Chinese Herbal; D005609:Free Radicals; D008055:Lipids; C442780:plant extract, Bidens pilosa; D014867:Water; D011429:Propolis; D011794:Quercetin; C004999:ferulic acid; C040048:caffeic acid