title: Determination of acylated anthocyanin in human urine after ingesting a purple-fleshed sweet potato beverage with various contents of anthocyanin by LC-ESI-MS/MS.
abstract: Eighty-seven healthy volunteers ingested a purple-fleshed sweet potato beverage with various contents of anthocyanin (beverage A; 22.1 mg/250 ml, B; 107.8, C; 84.9). An acylated anthocyanin, peonidin 3-caffeoylsophoroside-5-glucoside, was detected in the urine 2 h after ingestion. The concentrations were 15.1+/-2.2 microg/l of urine (mean+/-SEM), 46.6+/-5.3, and 53.3+/-2.2 for beverages A, B, and C respectively.
authors.affiliation: National Agricultural Research Center for Kyushu Okinawa Region, National Agriculture and Bio-Oriented Research Organization, Japan. tomooki@affrc.go.jp
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Oki
authors.forename: Ikuo
authors.initials: I
authors.lastname: Suda
authors.forename: Norihiko
authors.initials: N
authors.lastname: Terahara
authors.forename: Maki
authors.initials: M
authors.lastname: Sato
authors.forename: Minoru
authors.initials: M
authors.lastname: Hatakeyama
mesh_terms: D000107:Acetylation; D000872:Anthocyanins / Q000008:administration & dosage / Q000493:pharmacokinetics* / Q000652:urine*; D001628:Beverages; D002851:Chromatography, High Pressure Liquid; D005960:Glucosides / Q000652:urine; D006801:Humans; D027723:Ipomoea batatas / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D000872:Anthocyanins; D005960:Glucosides; C480521:peonidin 3-glucoside