Motivations Lipases, mainly of microbial origin, represent the most widely used class of enzymes in biotechnological applications and organic chemistry. Bacterial lipases are members of the structural superfamily of / hydrolases that catalyze the hydrolysis and synthesis of a variety of acylglycerols at the lipid-water interface. Optimization of features and catalytic activity of lipases as the...

In the present study we examined the performance of a thermoalkalophilic bacterial consortium, where the predominant strain was Bacillus sp. SF, in the degradation of Reactive Black 5 (RB5). We used a reactor working in continuous mode and investigated the effects of pH, hydraulic retention time (HRT) and several added salts on colour and chemical oxygen demand (COD) reductions. For the chosen ...

A thermoalkalophilic new species of Bacillus, similar to Bacillus arseniciselenatis DSM 15340, produced extracellular xylanase under solid state fermentation when wheat bran is used as carbon source. The extracellular xylanase was isolated by ammonium sulfate (80%) precipitation and purified using ion exchange chromatography. The molecular weight of xylanase was ~29.8 kDa. The optimum temperatu...

Montero, S., Blanco, A., Virto, M. D., Landeta, L. C., Agud, I., Solozabel, R., Lascaray, J. M., De Renobles, M., Llama, M. J. and Serra, J. L. (1993) Enzyme Microb. Technol. 15,239-247 Huang, F.-C. and Ju, Y.-H. (1994) Biotechnol. Tech. 8,827-830 AIChE J. 35, 1551-1554 21 Bailie, P. M., McNerlan, S. E., Robinson, E. and Murphy, W. R. (1995) Trans. IChemE. 73, 71-76 22 Wehtje, E., Adlercreutz, ...