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Full-Text Articles in Social and Behavioral Sciences
Optical Dating Of Holocene Sediments From A Variety Of Geomorphic Settings Using Single Grains Of Quartz, Jon M Olley, Tim Pietsch, Richard Roberts
Optical Dating Of Holocene Sediments From A Variety Of Geomorphic Settings Using Single Grains Of Quartz, Jon M Olley, Tim Pietsch, Richard Roberts
Richard G Roberts
No abstract provided.
Antimicrobial, Antimalarial And Cytoxicity Activities Of Constituents Of A Bhutanese Variety Of Ajania Nubigena, Phurpa Wangchuk, Paul A. Keller, Stephen G. Pyne, Jurgen Korth, - Samten, Malai Taweechotipatr, Roonglawan Rattanajak, Sumalee Kamchonwongpaisan
Antimicrobial, Antimalarial And Cytoxicity Activities Of Constituents Of A Bhutanese Variety Of Ajania Nubigena, Phurpa Wangchuk, Paul A. Keller, Stephen G. Pyne, Jurgen Korth, - Samten, Malai Taweechotipatr, Roonglawan Rattanajak, Sumalee Kamchonwongpaisan
Faculty of Science, Medicine and Health - Papers: part A
An investigation of the essential oil (EO) and the crude MeOH extract of a Bhutanese variety of Ajania nubigena using GC/GC-MS and NMR found the following: a) one kg of the dried plant material contained 0.7% w/w EO; b) 44 of the 53 GC-FID peaks of the EO were identified with (3R,6R)-linalool oxide acetate (75.8 %) as the major constituent (chemotype II) and chamazulene as a new sub-chemotype; c) purification of the EO furnished (3R,6R)-linalool oxide acetate (1), chamazulene (2), (E)-2-(2,4-hexadiynylidene)-1,6-dioxaspiro[4,4]non-3-ene (3), and (Z)-2-(2,4-hexadinylidene)-1,6-dioxaspiro[4,4]non-3-ene (4); d) from the crude MeOH extract, four flavonoid compounds: 1-(4-hydroxyphenyl)propan-1-one (5), oxyanin B (6), luteolin …