Fabrication of Magnetic CLEA-protease Nanocomposite: High Progression in Biotechnology and Protein Waste Management
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Magnetic nanocomposite opens ample opportunities for large scale application in industrial biocatalyst market. In this study, we isolated a high potent protease producing Bacillus cereus from several slaughterhouse wastes located in Kerman province, Iran. Results showed that, it was an organic solvent tolerant, thermophile protease which showed 20% increase in protease stability in the presence of n-hexane. It was active in a wide range of pHs and temperatures. A magnetic CLEA-protease nanocomposite (mCLEA-P-NC) was constructed successfully which confirmed by SEM and FTIR analysis. mCLEA-P-NC displayed Km value 4.6 folds lower than free enzyme. Biotechnological applications showed nearly 44% of proteins which obtained from waste water of local yogurt were degraded by mCLEA-P-NC. In addition, it showed high potential in silver recovery and de-haring process. A simple mechanic system was manifested to use mCLEA-P-NC in washing performance. These results indicated high potential of this protease nanocomposite in biotechnological application especially in recycling of waste proteins and washing performance.
KeywordsProtease Bacillus cereus Immobilization Nanocomposite
The authors express their gratitude to the Research Council of the Shahid Bahonar University of Kerman, Kerman (Iran) for financial support during this project.
Compliance with Ethical Standards
Conflict of interest
All authors declared that they have no conflict of interest.
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