In this study, a solvent based chemical upgrading process for coal was applied of biomass. Biomass treated at 320, 350, 380, 400, and 420°C, 2 h with 1-methylnapthlene (1-MN) solvent. Upgraded biomass samples were obtained by removing 1-MN from the using hexane washing approach. A part soluble fraction also in hexane. n-Hexane after recovery (solute) combined to obtain upgraded H/C O/C (UB) clo...

Background and objectives: Nigella sativa seeds have shown to possess anti-inflammatory, anti-oxidant, trenquillizer, chemopreventive and anti-neoplastic effects. Besides, they areused as nutritional flavoring agents. We have investigated the protective effects of N.  sativa seeds hexane extract and active principles against methyl phenyl pyridine (MP...

Abstract Ocotea notata (Lauraceae) is popularly known as white-cinnamon. species have several medicinal uses, especially for treating chest pain, rheumatism and wounds. The present study aimed to analyze the chemical composition of O. n-hexane fraction, in addition its anti-mycobacterial immunomodulatory activities. fraction was analyzed by GC-MS chromatographed afford 15 subfractions (SF1-15),...

Background: White turi leaf (Sesbania grandiflora) is a plant from the Leguminosae family that isused as traditional medicine. Purpose(s): To determine antioxidant potential of white leafextract grandiflora L) using DPPH reagent. Methods: leaves (S. grandiflora)were extracted maceration technique with ethanol solvent. The extract wasfractionated liquid-liquid extraction n-hexane, ethyl acetate,...

The demand for natural antioxidants has increased due to the harmful effects of synthetic antioxidants, such as toxicity and carcinogenic properties. Microalgae face this requirement they can produce numerous substances that have potential be antioxidants. This study aimed evaluate antioxidant activity Cosmarium extracts using ABTS radical cation assay identify compounds probably responsible it...

The surfactant fraction (55,000-g pellet) of leukocyte-free rat bronchoalveolar lavage fluid contains factors that rapidly kill and lyse pneumococci. These factors were purified and identified biochemically by using a quantitative bactericidal test to monitor fractionation procedures. 91% of the antipneumococcal activity of rat surfactant was recovered in chloroform after extraction of rat surf...

The in vitro antimalarial activities against Plasmodium falciparum K1 of four extracts from the stembark of Picrasma javanica B1; ie water, methanol, chloroform and hexane extracts were studied using a modification of the [3H]hypoxanthine incorporation method. It was found that the hexane extract showed in vitro antimalarial activity with IC50 of 3.3 microg/ml. The extract was further fractiona...

The extracts of nine selected Nigerian medicinal plants were investigated on Trypanosoma brucei brucei infected mice. The anti-inflammatory properties of hexane fraction of the most promising U. chamae extract was assessed by acute oedema of the mice paw model while the modulatory effect of the extract on Delayed-Type Hypersensitivity (DTH) response on in vivo leucocytes mobilization was evalua...