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Antimicrobial and Cytotoxic Activities of Some Malaysian Flowering Plants
Jasril,S. M. Mohamed,M. M. Mackeen,N. H. Lajis,A. A. Rahman,A. M. Ali 한국생약학회 1999 Natural Product Sciences Vol.5 No.4
A total of 43 extracts from 21 species of Malaysian flowering plants were screened for antimicrobial and cytotoxic activities. Antimicrobial activity was tested against fungi, including yeast and candida, as well as Gram-positive and Gram-negative bacteria, and cytotoxicity was assayed using the CEM-SS and HT-29 cell lines. The methanol extracts of the roots and stems of Plumeria acutifolia showed the highest antimicrobial activity, i.e. against Saccharomyces cerevisiae and Candida lipolytica, and mostly moderate activity against the other microbes such as Aspergillus ochraceous and Saccharomyces lipolytica. Phyllanthus emblica also showed moderate activity especially that of the methanol extracts. The methanol extract of the roots of Plumeria acutifolia showed the strongest cytotoxic activity (CD_(50)=3㎍/㎖). Most of Zingiberaceae species gave negative results for antimicrobial activity and showed low cytotoxic activity.
Anthraquinones from Cell Suspension Culture of Morinda elliptica
Jasril, Jasril,Lajis, N.H.,Abdullah, M.A.,Ismail, N.H.,Ali, A.M.,Marziah, M.,Ariff, A.B.,Kitajima, M.,Takayama, H.,Aimi, N. The Korean Society of Pharmacognosy 2000 Natural Product Sciences Vol.6 No.1
The chemical investigation on the cell suspension culture of Morinda elliptica L. yielded eight anthraquinones, two of which, anthragallol-1,2-dimethyl ether (3) and purpurin-1-methyl ether (4), have not been isolated from the original plant. Other compounds isolated include nordamnacanthal (1), alizarin-1-methyl ether (2), rubiadin (5), soranjidiol (6), $lucidin-{\omega}-methyl$ ether (7), and morindone (8). The structures of anthraquinones were established based on spectral studies.