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Supported by the Ministry of Higher Education Malaysia(Grant No.GUP2526.06H34).
Objective:To screen the antioxidant,cholinesterase and tyrosinase enzymatic inhibition activities of the leaves and heartwood of Calophyllum symingtonianum(C.symingtonianum),and the bark of Calophyllum depressinervosu...
the foundations from NSFC(20972167);the Young Academic Leader Raising Foundation of Yunnan Province(No.2009CI073);the foundation from CAS to Dr G.Xu.
Four new polycyclic polyprenylated acylphloroglucinol type metabolites,hypercohones D–G(1–4),along with four known analogues(5–8),were isolated from the aerial parts of Hypericum cohaerens.The structures of these i...
partially supported by the Intermtional Islamic University Malaysia(HUM)through EDWB1002-350
Objective:To study the chemical constituents of stembark of Garcinia malaccenm(G.malaccenm) together with apoptotic.antimicrobial and antioxidant activities.Methods:Purification and structure elucidation were carrie...
Abstract: The dormancy breaking and storage behavior of Garcinia cowa Roxb. seeds were investigated. The seeds of G. cowa had 8–11 months dormancy in their natural habitat. Seeds were matured and dispersed at the end...
A new xanthone, 1,2-dihydro-3,6,8-trihydroxy-1,1-bis (3-methylbut -2-enyl)-5-(1, 1-dimethylprop-2-enyl)xanthen-2,9-dione (1), has been isolated from the aerial part of Hypericum erectum.