Comparative evaluation of Bacillus licheniformis 5A5 and Aloe variegata milk-clotting enzymes
نویسندگان
چکیده
منابع مشابه
Milk-clotting Enzymes from Microorganisms.
A total of 230 cultures of fungi and 43 cultures of bacteria, isolated from such sources as soil, butter, and milk, were screened for their milk-clotting activity. The fungi were cultivated on semisolid media, and the bacteria were grown in milk media in shake culture. Phytic acid, added as calcium phytate, was found to stimulate production of the enzyme in most of the bacterial isolates. Prote...
متن کاملOptimization of the production and characterization of milk clotting enzymes by Bacillus subtilis natto
Suitable medium for production of milk clotting enzyme (MCE) by Bacillus subtilis (natto) Takahashi in submerged liquid-state fermentation was screened, the nutrient factors affecting MCE production was optimized by response surface methodology. The MCE production by B. subtilis (natto) Takahashi was increased significantly by 428% in the optimal medium developed. The MCE was filtered and conce...
متن کاملComparative Evaluation of Chemical Reduction Methods by Ethanol and Bacillus licheniformis on The Physical Properties, Stability and Coating of Nanoparticles
ABSTRACT Background and Objectives: Size of silver nanoparticles synthesized by ethanol and Bacillus lichenioformisis 20 nm and 15 nm, respectively. Nanoparticles can be used in treatment of several diseases. Chemical and biological methods have been used to synthesize silver nanoparticles. The aim of this study was to compare the size, shap...
متن کاملStudies on the production of milk-clotting enzymes, proteolytic enzymes and mucilage by fungi.
Of 48 fungal isolates, 28 (including one Penicillium and three Aspergilli) secreted milk-clotting enzymes. This activity was in general related to the mycelial growth of a given isolate, but not with pH change of the culture filtrate during incubation. It was not found when mucilage was formed by isolates capable of doing so. The ratio of general proteolytic activity to milk-clotting activity v...
متن کاملEnzyme Production Ability by Bacillus Subtilis and Bacillus Licheniformis - a Comparative Study
Objective: B.subtilis and B.licheniformis have been reported as one of the potential protease producer. Hence, an attempt has been made to optimize and compare the enzyme production by entrapment and fermentor conditions. Methods: Growth profile of both the strains has been studied. Optimization of culture conditions with respect to pH, temperature, agitation, carbon, nitrogen sources and metal...
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ژورنال
عنوان ژورنال: Brazilian Journal of Chemical Engineering
سال: 2012
ISSN: 0104-6632
DOI: 10.1590/s0104-66322012000100008