| In vitro: |
| Phytochemistry . 2004 Apr;65(7):885-890. | | ent-Kaurenoic acids from Mikania hirsutissima (Compositae)[Pubmed: 15081289] | | Four ent-kaurenoic acid derivatives, 2beta,16alpha,17-trihydroxy-ent-kauran-19-oic acid (1), 3beta,16alpha,17-trihydroxy-ent-kauran-19-oic acid (2), 11alpha,15beta-dihydroxy-7-O-beta-d-glucopyranosyl-ent-kaur-16-en-19-oic acid (3) and 1alpha,15beta-dihydroxy-7-O-beta-d-glucopyranosyl-ent-kaur-16-en-19-oic acid (4), were isolated together with five known compounds, 1,5-dicaffeoyl-quinic acid (5), 2-O-glucosyloxy-4-methoxy-cinnamic acid (6), phenethyl alcohol glucoside (7), phenethyl-1-O-beta-d-apiofuranosyl (1-->2) beta-d-glucopyranoside (sayaendoside) (8) and 3,6-dihydroxy-beta-ion-9-ol (9) from the 50% aqueous acetone extract of the aerial parts of Mikania hirsutissima DC. (Compositae). Compounds 1-9 were tested for their proliferative activity toward peripheral blood mononuclear cells (hPBMC); compounds 1 and 2 showed significant activity (43.8% and 36.7%, at 100 microM, respectively) on the lymphocyte. | | Biosci Biotechnol Biochem. 2008 Jan;72(1):219-221. | | Purification and characterization of beta-glucosidase involved in the emission of 2-phenylethanol from rose flowers[Pubmed: 18175907] | | Beta-glucosidase was partially purified from Rosa 'Hoh-Jun' petals. The enzyme was highly specific for such beta-D-glucopyranosides as 2-phenylethyl beta-D-glucopyranoside. The optimal activity was observed at pH 6.0 and 35 degrees C. The enzymes were composed with two proteins (160 and 155 kDa) by blue native-PAGE, and were classified in a family 1 glucosidase based on LC-MS/MS analyses. | | Arch Pharm Res . 2008 Aug;31(8):983-988 | | Terpene and phenolic constituents of Lactuca indica L[Pubmed: 18787785] | | We isolated seven terpenes and five phenolic constituents from the aerial parts of Lactuca indica L. using column chromatographic separation of its MeOH extract. Their structures were determined by spectroscopic methods to be trans-phytol (1), 3beta-hydroxyglutin-5-ene (2), 5,6-epoxy-3-hydroxy-7-megastigmen-9-one (3), 11beta-13-dihydrolactucin (4), 2-phenylethyl beta-D-glucopyranoside (5), cichorioside B (6), 1-hydroxylinaloyl-6-O-beta-D-glucopyranoside (7), (6S,9S)-roseoside (8), benzyl-beta-D-glucopyranoside (9), 2-(3'-O-beta-D-glucopyranosyl-4'-hydroxyphenyl)-ethanol (10), 3-(beta-D-glucopyranosyloxymethyl)-2-(4-hydroxy-3-methoxyphenyl)-5-(3-hydroxypropyl)-7-methoxy-dihydrobenzofuran (11), and (+)-taraxafolin-B (12). Compounds 1-3, 5, and 7-12 were isolated for the first time from this plant source. The isolated compounds were tested for cytotoxicity against four human tumor cell lines in vitro using a Sulforhodamin B bioassay. |
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