title: Diapolycopenedioic acid xylosyl esters A, B, and C, novel antioxidative glyco-C30-carotenoic acids produced by a new marine bacterium Rubritalea squalenifaciens.
abstract: Novel acyl glyco-carotenoic acids, diapolycopenedioic acid xylosyl esters A, B, and C, were isolated as red pigments by using chromatographic methods from a marine bacterium, Rubritalea squalenifaciens, belonging to subdivision 1 of Verrucomicrobia. The structures of these diapolycopenedioic acid xylosyl esters were determined to be 4-[2-O-acyl-beta-D-xylopyranosyl] hydrogen 4,4'-diapo-Psi,Psi-carotene-4,4'-dioate by spectroscopic analysis. Diapolycopenedioic acid xylosyl ester A showed potent antioxidative activity in a (1)O(2) suppression model.
authors.affiliation: Department of Food and Nutrition, Japan Women's University, Bunkyo-ku, Tokyo, Japan. kshindo@fc.jwu.ac.jp
authors.forename: Kazutoshi
authors.initials: K
authors.lastname: Shindo
authors.forename: Emiko
authors.initials: E
authors.lastname: Asagi
authors.forename: Aya
authors.initials: A
authors.lastname: Sano
authors.forename: Eri
authors.initials: E
authors.lastname: Hotta
authors.forename: Noriko
authors.initials: N
authors.lastname: Minemura
authors.forename: Kanae
authors.initials: K
authors.lastname: Mikami
authors.forename: Emiko
authors.initials: E
authors.lastname: Tamesada
authors.forename: Norihiko
authors.initials: N
authors.lastname: Misawa
authors.forename: Takashi
authors.initials: T
authors.lastname: Maoka
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000378:metabolism* / Q000494:pharmacology*; D001419:Bacteria / Q000737:chemistry*; D002338:Carotenoids / Q000737:chemistry / Q000378:metabolism* / Q000494:pharmacology*; D005285:Fermentation; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D012623:Seawater / Q000382:microbiology; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D000975:Antioxidants; D007202:Indicators and Reagents; C532328:diapolycopenedioic acid xylosyl ester A; C532329:diapolycopenedioic acid xylosyl ester B; C532330:diapolycopenedioic acid xylosyl ester C; D002338:Carotenoids