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Biosci Biotechnol Biochem. 1995 Apr;59(4):749-50.

Extraction of extracellular L-asparaginase from Candida utilis.

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  • 1Department of Food Science and Nutrition, Dong-A University, Pusan, Korea.


L-Asparaginase was extracted from Candida utilis cells using various reducing agents, 2-mercaptoethanol, dithiothreitol, or cysteine. The extraction of the enzyme depended upon the kind and concentration of reducing agents, temperature, time of incubation, and pH of buffer used. The enzyme was typically extracted by incubating the cells at 50 degrees C for 4 h in extraction solution containing 20 mM 2-mercaptoethanol in 20 mM potassium phosphate buffer (pH 7.0). The enzyme can be extracted from either cell precipitate or cell culture broth. The yeast cells were viable after extraction of L-asparaginase.

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