نتایج جستجو برای: ethyl 2 chloroaceto acetate
تعداد نتایج: 2571243 فیلتر نتایج به سال:
background: salvia limbata is an aromatic herbaceous plant and grows widely in iran turkey and afghanistan. in the previous study, six flavones together with rosmarinic acid were isolated from the ethyl acetate and methanol extracts of s. limbata. in this report, we focused on the isolation and identification of the glycosylated sterols and the main accumulated amino acid of the species s. limb...
High pressure density behaviors for fluid mixtures made of carbon dioxide with solvent, methyl acetate, ethyl acetate, 2-propyl acetate, methanol, 1-propanol, or 2-propanol, at 313.15 K were satisfactorily correlated. The standard deviations were between 0.4 and 2.2 kg m -3 in density for each system in the composition range from 0.00 to 0.95 mole fraction of carbon dioxide.
Leaves of Catharanthus roseus (L) G. Don (72 kg) were collected from a field grown in the Karachi Uni versity campus. The crude alkaloids (134 g) obtained from the alcoholic extract of the air-dried leaves (24 kg) of the plant, were dissolved in chloroform (450 ml) and extracted with pH 3 phosphate buffer (1 1). The chloroform layer was dried (anhydrous Na2S 0 4), concentrated to 1/3 of its or...
Background & Aim: Bombax costatum stem bark is traditionally used in treatment of liver diseases but the anti-hepatofibrotic effect of its ethyl acetate fraction has not been scientifically evaluated. This study aimed to evaluate the anti-hepatofibrotic effect of ethyl acetate fraction of B. costatum stem bark (EAB) against carbon tetrachloride (CCl4) induced liver fibrosis in mice. Experimenta...
Throat infections are common cause for visit to health care centres. This study is aimed at investigating the antibacterial efficacy of G. kola seeds against bacteria involved in throat infections. Twenty clinical and 4 typed bacterial isolates associated with throat infections were obtained. Extraction from G. kola seeds using ethanol, methanol, ethyl acetate, acetone, hot and cold water as ex...
In this study, the crude ethanol Rhynchosia nulubilis cultivated with Ganoderma lucidum mycelium (RNGM) extract was solvent fractionated with organic solvents such as n-hexane, chloroform, ethyl acetate, and water. The anticancer activities, anti-inflammatory activity total polyphenols, total flavonoids, isoflavones, and β-glucan of the solvent fractions of RNGM were studied. The ethyl acetate ...
OBJECTIVE To screen the anti-tumor fraction of ethanol extracts from Thymus quinquecostatus Celak and investigate its anti-tumor effect on human leukemia cell line. METHODS Ethyl acetate, n-butanol and acetone fractions were separated from the ethanol extracts of wild Thymus quinquecostatus Celak. Growth inhibiting effects of these extracts on human leukemia cell lines K562 and HL-60 were det...
Twenty three endophytic fungi from leaf, stem and root of 0cimum basilicum (Tulshi) were isolated and purified. One of the fungi (2L-5) isolated from the leaves was fermented in a large scale and extracted with ethyl acetate. The fungal extract was found to be active against two bacteria, Bacillus cereus and Staphylococcus aureus. From the ethyl acetate extract two steroids, ergosterol and cere...
BACKGROUND Prunus yedoensis (PY) is a traditional anti-allergy and anti-inflammatory herb medicine used in South Korea. However, until date, little is known regarding its mechanism of action. METHODS In order to elucidate the mechanism of anti-inflammatory effect of PY, the constituents of PY were analysed by high performance liquid chromatography (HPLC), and nitric oxide (NO) and prostagland...
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