Now showing items 1-10 of 6446
Biochemical properties of free and immobilized Candida viswanathii lipase on octyl-agarose support: Hydrolysis of triacylglycerol and soy lecithin
Microbial lipases are important enzymes in food and pharmaceutical industries. In this work, a Candida viswanathii lipase was purified by hydrophobic interaction chromatography on octyl Sepharose. The purification presented ...
Purification, characterization, and specificity determination of a new serine protease secreted by penicillium waksmanii
The purpose of this work was to purify a protease from Penicillium waksmanii and to determine its biochemical characteristics and specificity. The extracellular protease isolated that was produced by P. waksmanii is a ...
Antioxidant enzyme activity and hydrogen peroxide content during the drying of Arabica coffee beans
The development of the germination process and drought stress during the drying of coffee can generate reactive oxygen species, which can be neutralized by way of antioxidant mechanisms. No studies related to antioxidant ...
Modelling thermal stability and activity of free and immobilized enzymes as a novel tool for enzyme reactor design
(Elsevier Sci LtdOxfordInglaterra, 2007)
Production and partial characterization of keratinase produced by a microorganism isolated from poultry processing plant wastewater
A Streptomyces was isolated from poultry plant wastewater, showed high keratinolytic activity when cultured on feather meal medium. Optimum keratinolytic activity was observed at 40°C and pH 8.0. The enzyme also showed to ...
Immobilization and Stabilization of Beta-Xylosidases from Penicillium janczewskii
β-Xylosidases are critical for complete degradation of xylan, the second main constituent of plant cell walls. A minor β-xylosidase (BXYL II) from Penicillium janczewskii was purified by ammonium sulfate precipitation (30% ...
Purification and characterization of xylanases from Aspergillus giganteus
A strain of Aspergillus giganteus cultivated in a medium with xylan produced two xylanases (xylanase I and II) which were purified to homogeneity. Their molar mass, estimated by SDS-PAGE, were 21 and 24 kDa, respectively. ...
Effect of early feed restriction and enzyme supplementation on digestive enzyme activities in broilers
(Poultry Science Assoc Inc, 2004-09-01)
The effect of feed restriction and enzymatic supplementation on intestinal and pancreatic enzyme activities and weight gain was studied in broiler chickens. Quantitative feed restriction was applied to chickens from 7 to ...
Xylanase and β-Xylosidase from Penicillium janczewskii: Production, Physico-Chemical properties, and application of the crude extract to pulp biobleaching
Extracellular xylanase and β-xylosidase production by a Penicillium janczewskii strain were investigated in liquid cultures with xylan from oat spelts under different physical and chemical conditions. The selected conditions ...