title: Analysis of rubusoside and related compounds in tenryocha extract sweetener.
abstract: The main and minor constituents of tenryocha extract product, a natural sweetener, were investigated as a part of an ongoing study to evaluate its quality and safety as a food additive. Four constituents, namely rubusoside, steviolmonoside, panicloside IV, and ent-16 alpha, 17-dihydroxykauran-19-oic acid, were isolated. The concentration of rubusoside, the main sweet constituent, was 8.65% in the tenryocha extract product. In addition, it was confirmed that the origin of the extract was the leaves of Rubus suavissimus S. Lee (Rosaseae), as determined by comparing TLC and HPLC profiles of the product and hot-water extract prepared from the leaves of R. suavissimus.
authors.affiliation: National Institute of Health Sciences: 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan.
authors.forename: Naoki
authors.initials: N
authors.lastname: Sugimoto
authors.forename: Kyoko
authors.initials: K
authors.lastname: Sato
authors.forename: Hong-Min
authors.initials: HM
authors.lastname: Liu
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kikuchi
authors.forename: Takeshi
authors.initials: T
authors.lastname: Yamazaki
authors.forename: Tamio
authors.initials: T
authors.lastname: Maitani
mesh_terms: D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D004224:Diterpenes / Q000032:analysis*; D045786:Diterpenes, Kaurane; D004365:Drugs, Chinese Herbal / Q000032:analysis; D005960:Glucosides / Q000032:analysis*; D013549:Sweetening Agents / Q000032:analysis*
chemical_list: D004224:Diterpenes; D045786:Diterpenes, Kaurane; D004365:Drugs, Chinese Herbal; D005960:Glucosides; D013549:Sweetening Agents; C056177:rubusoside