Moringa oleifera Lam. (Moringaceae) is a very useful tree in tropical countries. In folklore and ayurvedic all parts of the tree used in different healing procedures for different diseases. The plant leaves are very good nutrient supplement for malnutrition and also used as an antibiotic. To evaluate the antibacterial activity of Moringa oleifera leaf extracts against four microorganisms, viz. ...

The present study demonstrates the use of mixed co solvency in the enhancement of solubility and estimation of ketoprofen, practically water insoluble dug and thus precludes the use of organic solvents. The selected solubilizers were sodium citrate (15%), PEG 400 (8%) and polyvinyl pyrolidine (7%). Beer’s law was obeyed in the concentration range of 2-20μg/ml at wavelength of 256nm. The solubil...

Polychlorinated hydrocarbons are prevalent environmental contaminants whose rates of biodegradation are limited by their minimal solubilities in aqueous solutions where the biological reactions take place. In this study, ligninase (LiP) from Phanerochaete chrysosporium was modified by poly(ethylene glycol) to enhance its activity and stability for the biodegradation of pentachlorophenol (PCP) i...

The Grunwald-Winstein type analyses with respect to Ycl scale on the specific rates of solvolysis of extremely crowded tertiary alkyl chlorides having a neopentyl or a (1-adamanty1)methyl group at the reaction center show that they behave as k, substrates. The neopentyl group is more effective in backside shielding than a tertiary butyl group. There are now many unprecedented examples that show...

Three model, unrelated enzymes (yeast alcohol oxidase, mushroom polyphenol oxidase, and horse liver alcohol dehydrogenase) were found to be catalytically active in a variety of organic solvents. For all enzymes and solvents tested, the enzymatic activity greatly increased upon an increase in the water content in the solvents (which always remained below the solubility limit). Much less water wa...

The detection of acid in different solution environments plays a significant role chemical, environmental and biological fields. However, reducing the constraints detecting environment, such as aqueous, organic solvents mixed phases aqueous phases, remains challenge. Herein, by combining N, N′, N′-tetrakis(4-aminophenyl)-1,4-phenylenediamine (TPBD) terephthalaldehyde (TA) via Shiff-base condens...

Ionic liquids (ILs) have proven effective solvents for pretreating lignocellulose, leading to the fast saccharification of cellulose and hemicellulose. However, the high current cost of most ILs remains a major barrier to commercializing this recent approach at a practical scale. As a strategic detour, aqueous solutions of ILs are also being explored as less costly alternatives to neat ILs for ...

Maize oil is high in polyunsaturated fat, which is a heart-healthy fat, and low in saturated fat. Extraction of oils from oilseeds is a key step for their commercialization. The extraction process has a direct effect on the quality and quantity of protein and oils obtained. Various methods like cold pressing, solvent, super-critical fluid and aqueous extractions are in practice for oilseed extr...