نتایج جستجو برای: petroleum fraction

تعداد نتایج: 167043  

Journal: :African journal of traditional, complementary, and alternative medicines : AJTCAM 2010
O Quasie O N K Martey A K Nyarko W S K Gbewonyo L K N Okine

Mondia whitei root was evaluated to validate its anecdotal use and determine its possible mode of action in the management of erectile dysfunction. Rabbits were administered with daily oral doses of 100-400 mg kg(-1) crude ethanolic extract of M. whitei and sildenafil (50 mg kg(-1)) as positive control for 6 weeks. Cavernosal tissue NOS activity and levels of NO and cGMP, and NOS and PDE protei...

M. Mojarrab* P. Jahanbani S. Nasseri

Background and objectives: Artemisia aucheri Boiss. is regarded as one of 34 Artemisia species growing in Iran. The aim of this study was to undertake an investigation of the antioxidant activity as well as identification of main compound of different extracts and fractions of A. aucheri. Methods: Antioxidant activity and tot...

Jamshid Raheb

Several research groups have attempted to make recombinant bacteria capable of efficient desulfurization of oil fraction. The main aim of this study was to design a recombinant strain in order to desulfurize dibenzothiophen (DBT) and its components found in petroleum. In this study the pVLT31 vector harboring dszABC genes was transferred into recombinant E. coli BL21 which contained the dszD ge...

2010
A. K. Bajhaiya S. K Mandotra M. R. Suseela Kiran Toppo

INTRODUCTION Microalgae comprise a vast group of photosynthetic, auto/heterotrophic organism which has an extraordinary potential for cultivation as energy crops. These microscopic algae use photosynthetic process similar to that of higher-developed plants. They are veritable miniature biochemical factories, capable of regulating carbon dioxide (CO ), just like terrestrial plants [1]. In additi...

Journal: :iranian journal of pharmaceutical research 0
tayyebe hatami 1-novel drug delivery research center, school of pharmacy, kermanshah university of medical sciences, kermanshah, i.r. iran. 2-student research committee, kermanshah university of medical science, kermanshah, i.r. iran. sayyed ahmad emami department of pharmacognosy, school of pharmacy, mashhad university of medical sciences, mashhad, i.r. iran. sayyed shahram miraghaee novel drug delivery research center, school of pharmacy, kermanshah university of medical sciences, kermanshah, i.r. iran mahdi mojarrab novel drug delivery research center, school of pharmacy, kermanshah university of medical sciences, kermanshah, i.r. iran.

total phenolic contents (tpc) of five different extracts (petroleum ether, dichloromethane, ethyl acetate, ethanol and ethanol-water) of artemisia biennis willd were measured in this work. the antioxidant activity was investigated by three different methods: β-carotene bleaching (bcb) test, 2,2-diphenyl-1-picrylhydrazyl (dpph) radical scavenging method and ferrous ion chelating (fic) assay. amo...

Journal: :iranian journal of science and technology (sciences) 2015
a. khan

the presence of tribolium castaneum (herbst) in a stored food results in contamination and substantial economic damage due to loss of the products and a decrease in nutritional value. this study was conducted to determine the pesticidal and pest repellent activities of roots of laportea crenulata gaud. against t. castaneum. pesticidal activity was determined using surface film method, whereas, ...

2008
M. A. Frontera M. A. Tomás A. Diez C. Watson C. Mulet

From the petroleum ether extract of the aereal part of Condalia microphylla Cav, hydrocarbons, sterols, alcohols, and fatty acids were isolated. From fruits of the same plant anthocyanins were also isolated and characterized by chromatographic and spectroscopic methods. Introduction Condalia microphylla Cav. Species belongs to the Ramnaceae family, and its common name is “Piquillín”. It general...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید