a 4 days study was conducted to determine the effects of different concentration of bioaugmentor bacterial strain bacillus licheniformisi, b. subtilis, b. polymyxa, b. laterosporus and b. circulans (protexin aquatech, uk) on adjustment of parameters of water quality as tan, no2-n, no3-n and turbidity from the effluent of common carp ponds. effects of time and concentration were studied as a com...

The formation of galactooligosaccharides (GOS) in skim milk during treatment with several commercial β-galactosidases (Bacillus circulans, Kluyveromyces lactis and Aspergillus oryzae) was analysed in detail, at 4 and 40°C. The maximum GOS concentration was obtained at a lactose conversion of approximately 40-50% with B. circulans and A. oryzae β-galactosidases, and at 95% lactose depletion for ...

An enzyme that has both beta-1,4-glucanase and chitosanase activities was found in the culture medium of the soil bacterium Lysobacter sp. IB-9374, a high lysyl endopeptidase-producing strain. The enzyme was purified to homogeneity from the culture filtrate using five purification steps and designated Cel8A. The purified Cel8A had a molecular mass of 41 kDa, as estimated by sodium dodecyl sulfa...

Three hundred and sixty-eight strains of aerobic, endospore-forming bacteria which included type and reference cultures of Bacillus and environmental isolates were studied. Overall similarities of these strains for 118 unit characters were determined by the SSM, SJ and DP coefficients and clustering achieved using the UPGMA algorithm. Test error was within acceptable limits. Six cluster-groups ...