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Alkaloids from the seeds of Peganum harmala showing antiplasmodial and vasorelaxant activities
Quinazoline alkaloid, vasicinone, showed a vasorelaxant activity against phenylephrine-induced contraction of isolated rat aorta and a moderate in vitro antiplasmodial activity against Plasmodium falciparum.
Studies on the constituents from the fruits of Phaleria macrocarpa
From the fruits of Phaleria macrocarpa, icariside C3 (1), phalerin (2), and mangiferin (3) were isolated and their structures were identified on the basis of spectroscopic data. Icariside C3 (1)…
Structures and cytotoxic activity relationship of casearins, new clerodane diterpenes from Casearia sylvestris Sw.
Casearins G-R, new cytotoxic clerodane diterpenes have been isolated from the leaves of Casearia sylvestris Sw. (Flacourtiaceae). Their structures have been elucidated by spectroscopic methods and…
Cytotoxic diterpenes from the rhizomes of Hedychium coronarium.
Cytotoxic aromatic triterpenes from Maytenus ilicifolia and Maytenus chuchuhuasca.
The isolation and structure elucidation of four cytotoxic aromatic triterpenes [1-4] along with three known quinoid triterpenes [5-7] from the South American medicinal plants Maytenus ilicifolia and…
Phenanthrene derivatives from Cymbidium Great Flower Marie Laurencin and their biological activities.
A new phenanthrendione, ephemeranthoquinone B, which was isolated from the roots of Cymbidium Great Flower Marie Laurencin and had a strong antibacterial effect on B. subtilis, and six known phenanthrenes, 5-10 showed antibacterial activities with minimum inhibitory concentration values in the range of 4.88 to 65.10 μM.
Cr(VI) reduction from contaminated soils by Aspergillus sp. N2 and Penicillium sp. N3 isolated from chromium deposits.
- T. Fukuda, Y. Ishino, A. Ogawa, K. Tsutsumi, H. Morita
- Biology, EngineeringThe Journal of general and applied microbiology
- 1 October 2008
Aspergillus sp. N2 and Penicillium sp. N3 are chromate-resistant filamentous fungi that were isolated from Cr(VI) contaminated soil based on their ability to decrease hexavalent chromium levels in…
High performance liquid chromatography in phytochemical analysis of Eurycoma longifolia.
An analytical method using HPLC with UV detection was developed to investigate the quassinoid content of Eurycoma longifolia Jack (Simaroubaceae) collected from various sources, finding 1 had the highest concentration, being about 16.8-39.6 fold higher than the other quassinoids 2, 3, 5, 7 but 145.3 folds higher than 4 which showed the lowest concentration.
Improved glucoamylase production by Rhizopus sp. A-11 using metal-ion supplemented liquid medium
Diarylheptanoids from the Rhizomes of Curcuma xanthorrhiza and Alpinia officinarum
Five diarylheptanoids including two new compounds were isolated from the rhizomes of Curcuma xanthorrhiza (Zingiberaceae). The structures of the new compounds were determined to be octahydrocurcumin…