Thus compound 4 was identified as 26-O-[beta]-D-glucopyranosyl-(25R)-furost-5,20-diene-3,26-diol 3-O-[ [beta]-D-glucopyranosyl-(1 [right arrow] 2)] -[alpha]-L-rhamnopyranosyl-(1 [right arrow] 4)-[beta]-D- glucopyranoside
, and compound 5 as its 25S epimer (Fig.
However it was unable to utilize sucrose, raffinose, adonitol, methyl A-D mannoside, inositol, xylitol, isobutyrate, methyl A-D glucopyranoside
, salicin, D-melizitose and hippurate.
(p-NPG) was used in assays for [beta]-glucosidase activity (Ferraz et al.
005 * Spectrophotometric assay, [alpha]-para-nitrophenol glucopyranoside
Teniposide differs from etoposide, another podophyllotoxin derivative, by the substitution of a thenylidene group on the glucopyranoside
ferruginea, but a bioassay guided fractionation of an extract showed that the compounds 5'demethoxy-[beta]-peltatin-5-O-[beta]-D- glucopyranoside
have cytotoxic and cytostatic activity in the NCI's 60 cell antitumour screen (Rashid 2000).
From roots, a naphthoquinone-anthraquinone coupled pigment--newbouldiaquinone A has been isolated with anti-malarial activity against Plasmodium falciparum and strong anti-microbial activities against Candida gabrata and Enterobacter aerogens; other components isolated from roots included apigenin, chrysoeriol, newbouldiaquinone, lapachol, 2-methylanthraquinone, 2-acetylfuro-1,4- naphthoquinone, 2,3-dimethoxy-1,4-benzoquinone, oleanolic acid, canthic acid, 2-(4- hydroxyphenyl)ethyl triacontanoate, newbouldiamide, 5,7-dihydroxydehydroiso-a- lapachone, b-sitosterol, and b-sitosterol glucopyranoside
(Eyong et al.
pentosaceus fermentum rhamnosus TMU457 TMU121 TMU094 Morphology Cocci * Rod Rod L-arabinose + - - D-xylose + - - L-sorbose - - + L-rhamnose + - + Inositol - - + D-mannitol - - + D-sorbitol - - + Methyl-a D- - - + Glucopyranoside
N-acetyl glucosamine + - + Amygdalin + - + Arbutin + - + D-maltose - + + D-sucrose - + - D-trehalose + - + D-melezitose - - + Gentibiose + - + D-turanose - - + D-xylose - - + D-tagatose + - + Potassium 2-Keto + - - gluconate * Diplococcus.
06 7-O-glucoside or 2', 4'-dimethoxy-3'-hydroxy- isoflavan-6-O-[beta]- glucopyranoside
Hydroquinone and its glucopyranoside
conjugate are present in a number of common foods including coffee, wheat cereal and bread as well as pears (Deisinger et al.