Protease enzymes perform the hydrolysis of proteins or large polypeptide chains into smaller peptides and amino acids, and thus facilitate their absorption by cells which is produced by different types of microorganisms such as bacteria, fungi, yeast and actinomycetes. Commercially they are very important in different industrial levels and products. The aim of this study was to isolate the prot...

A total of 59 isolates of different Haemophilus spp., mostly from clinical specimens, was characterised, biotyped and examined for production of type 1 or type 2 IgA1 protease. IgA1 protease activity was not found in any isolate of a species with no or low virulence for man including H. parainfluenzae, H. haemolyticus, H. aphrophilus, H. paraphrophilus, H. segnis, H. paraphrohaemolyticus and H....

A highly sensitive and specific radioimmunoassay has been developed for Pseudomonas aeruginosa alkaline protease. Production of alkaline protease was found to be strain variable and medium dependent.

Extra cellular alkaline protease producing species is an isolate from soil which was characterized and identified as Streptomyces pulvereceus MTCC 8374. Studies on submerged fermentation revealed that maximum level of enzyme production was during early stationary phase. Optimum pH, inoculum and temperature were 9.0, 3 percent and 33 C respectively. Among carbon sources 0.3 peccent starch gave a...

In the present study, Bacillus subtilis AP-CMST W3 was isolated from an estuarine environment for the production of protease for various biotechnological applications. The process parameters were optimized to enhance the production of protease by the candidate organism. Protease production was found to be optimum in the presence of 0.5% maltose, 0.5% casein, 0.1% magnesium chloride, 3% sodium c...

There are several reports about the optimization of protease production, but only few have optimized the production of organic solvent tolerant keratinolytic proteases that show remarkable exploitation in the development of the non-polluting processes in biotechnological industries. The present study was carried with aim to optimize the production of a thermostable organic solvent tolerant kera...

To enhance the protease production and decrease cost, corn flour and soy peptone were screened as cheap raw materials for the production of extracellular proteases by Bacillus strains. Their compositions in the medium suitable for enzyme production of Bacillus sp. B001 were optimized using statistical experiment designs. Under the optimized conditions, the protease production of Bacillus sp. B0...

ABSTRACT            Background and Objectives: Halophilic bacteria can grow and survive in environments with a wide range a wide range of salinities. In this study, we aimed to isolate halophilic bacteria from the Meyghan Lake in Arak (Iran) and evaluate their enzymatic activity.            Methods: Samples were taken from four different areas of the lake. Halophilic bacteria were isolated by...

An alkaline protease-producing fungus was screened from potato grown soil fields of Bangalore and identified as Aspergillus terreus gr. based on morphological and microscopic features. The selected growth medium contained casein (1%) as a sole source of carbon and nitrogen. The pH of the medium was adjusted to 10.0 using sodium carbonate in order to isolate alkalophilic fungi. The best process ...