Cytotoxic flavonoids from Erythrina caffra Thunb
نویسندگان
چکیده
منابع مشابه
In Vitro Antibacterial and Time-Kill Evaluation of the Erythrina caffra Thunb. Extract against Bacteria Associated with Diarrhoea
The antibacterial activities of stem bark ethanolic extract of Erythrina caffra Thunb. against bacteria in diarrhoea was determined in vitro by the agar diffusion and dilution, macrobroth dilution, and time-kill assay methods. The result showed that the extract produced inhibition zones ranging between 15 ± 1.0 mm and 23 ± 1.0 mm, and the bacteria were susceptible at concentrations ranging betw...
متن کاملOccurrence of an Inhibitor of Tissue-Type Plasminogen Activator in Seeds and in Vitro Cultures of Erythrina caffra Thunb.
The level of an inhibitor of tissue-type plasminogen activator (t-PA) increased slowly during the early developmental stage of seeds of Erythrina caffra Thunb. Thereafter, the inhibitor increased exponentially until the seeds reached maturity. At maturity, the t-PA inhibitor levels in the cotyledons were 38 times higher than the levels at the onset of seed development. The t-PA inhibitor accumu...
متن کاملAnti-plasmodial flavonoids from the stem bark of Erythrina abyssinica.
The ethyl acetate extract of the stem bark of Erythrina abyssinica showed anti-plasmodial activity against the chloroquine-sensitive (D6) and chloroquine-resistant (W2) strains of Plasmodium falciparum with IC(50) values of 7.9+/-1.1 and 5.3+/-0.7 microg/ml, respectively. From this extract, a new chalcone, 2',3,4,4'-tetrahydroxy-5-prenylchalcone (trivial name 5-prenylbutein) and a new flavanone...
متن کاملCytotoxic Activities of Flavonoids from Centaurea scoparia
Phytochemical studies on the ethanolic extract of the aerial parts of Centaurea scoparia led to the isolation of two new flavonoids, 3',4'-dihydroxy-(3'',4''-dihydro-3''-hydroxy-4''-acetoxy)-2'',2''-dimethylpyrano-(5'',6'':7,8)-flavone-3-O- β -D-glucopyranoside (1) and 3,3',4'-trihydroxy-(3'',4''-dihydro-3'',4''-dihydroxy)-2'',2''-dimethylpyrano-(5'',6'':7,8)-flavone (2), along with eight known...
متن کاملFlavonoids and isoflavonoids with antiplasmodial activities from the root bark of Erythrina abyssinica.
From the root bark of Erythrina abyssinica a new pterocarpene [3-hydroxy-9-methoxy-10-(3,3-dimethylallyl)pterocarpene] and a new isoflav-3-ene [7,4'-dihydroxy-2',5'-dimethoxyisoflav-3-ene] were isolated. In addition, the known compounds erycristagallin, licoagrochalcone A, octacosyl ferulate and triacontyl 4-hydroxycinnamate were identified. The structures were determined on the basis of spectr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Ethiopia
سال: 2017
ISSN: 1011-3924
DOI: 10.4314/bcse.v30i3.11