نتایج جستجو برای: petroleum fraction

تعداد نتایج: 167043  

Journal: :research in pharmaceutical sciences 0

amorphophallus campanulatus (roxb.) blume belonging to the family of araceae, is a perennial herb commonly known as elephant foot yam. its tuber has been traditionally used for the treatment of liver diseases, abdominal tumors, piles. the aim of the present study was to evaluate the dose-dependent cytotoxic and apoptosis inducing effects of the sub fractions of amorphophallus campanulatus tuber...

Tuberculosis still remains a leading cause of death in the world. Currently considerable interest in natural products and their derivatives in the area of drug research for multidrug resistant tuberculosis (MDR-TB). The present investigation focused on identification, isolation, characterization of lead constituents and to determine the antitubercular activity of their enriched fractions and is...

Tuberculosis still remains a leading cause of death in the world. Currently considerable interest in natural products and their derivatives in the area of drug research for multidrug resistant tuberculosis (MDR-TB). The present investigation focused on identification, isolation, characterization of lead constituents and to determine the antitubercular activity of their enriched fractions and is...

Journal: :Indian journal of experimental biology 2008
E E Jarald S B Joshi D C Jain

Petroleum ether (60 degrees-80 degrees C), chloroform, acetone, ethanol, aqueous and crude hot water extracts of the whole plant of C. dactylon and the two fractions of aqueous extract were tested for antihyperglycaemic activity in glucose overloaded hyperglycemic rats and in alloxan induced diabetic model at two-dose levels, 200 and 400 mg/kg (po) respectively. The aqueous extract of C. dactyl...

Journal: :iranian journal of oil & gas science and technology 2014
seyyed mohsen hosseini khalil shahbazi mohammad reza khosravi nikou

among the all parameters affecting the performance of a downhole de-oiling hydrocyclone, the investigation of internal flow field deserves more attempts especially in the petroleum industry. in this study, the effects of inlet flow rate, inlet oil volume fraction, and oil droplet diameter on the separation efficiency and pressure drop ratio have been investigated along the hydrocyclone body. al...

Journal: :iranian journal of pharmaceutical sciences 0
nafisa binte arfan department of pharmacy, world university of bangladesh, dhaka-1205, bangladesh torikul islam department of pharmacy, world university of bangladesh, dhaka-1205, bangladesh b department azima sultana julie department of pharmacy, world university of bangladesh, dhaka-1205, bangladesh ak mohiuddin department of pharmacy, world university of bangladesh, dhaka-1205, bangladesh shah alam khan department of pharmacy, oman medical college, muscat, sultanate of oman zubair khalid labu department of pharmacy, world university of bangladesh, dhaka-1205, bangladesh

abstract sesbania grandiflora leaves are extensively used locally since ancient time as in traditional systems. base on mainly folkloric use, we investigated to know the potential of sesbania grandiflora leaves extracts through biological works in vivo and in vitro. the ethanolic extract of s. grandiflora leaves was partitioned into ethyl acetate soluble fraction (esf), petroleum ether soluble ...

Journal: :Journal of Research of the National Bureau of Standards 1936

2003
J. McCoy

The first of these chemicals, mineral spirits, is known by a number of different names. Benzine, petroleum spirits, mineral turpentine, naphtha and painters naphtha are just a few of the synonyms of mineral spirits. This solvent is actually a mixture of a number of different hydrocarbons. It is distilled from petroleum and is composed of chemicals having generally five to seven carbons. It repr...

2011
JEHAN BAKHT AMJAD ISLAM MOHAMMAD SHAFI

The susceptibility of nine microbial species to an antimicrobial extract from Eclipta alba was screened using the well diffusion assay. Three different volumes (24, 30 and 36 μl/well) were tested. Analysis of the data revealed that all extracts from Eclipta alba showed antimicrobial activities. An N-butanol fraction showed inhibitory activities against all nine microbial species. Samples extrac...

2011
Cristina Uribe‐Alvarez Marcela Ayala Lucia Perezgasga Leopoldo Naranjo Héctor Urbina Rafael Vazquez‐Duhalt

A fungal strain isolated from a microbial consortium growing in a natural asphalt lake is able to grow in purified asphaltenes as the only source of carbon and energy. The asphaltenes were rigorously purified in order to avoid contamination from other petroleum fractions. In addition, most of petroporphyrins were removed. The 18S rRNA and β-tubulin genomic sequences, as well as some morphologic...

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