Thermostable,salt-tolerant amylase fromBacillus sp. 64 |
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Authors: | J M Khire A Pant |
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Institution: | (1) Division of Biochemical Sciences, National Chemical Laboratory, 411008 Pune, India |
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Abstract: | A thermostable, salt-tolerant amylase was produced byBacillus sp. 64, with maximum amylase production (8.0 U/ml culture filtrate) after 24-h growth. Partially purified amylase was stable at 60°C for 30 min and 80% of the original activity was retained when incubated in 5m NaCl over 24 h. Starch or dextrin was the best carbon source and peptone the best nitrogen source for the production of the enzyme. Amylase was secreted over a wide pH range (5 to 11) with the maximum activity between pH 7 and 8. Ca2+ and Mg2+ stimulated growth and enzyme production.NCL Communication No. 5209. |
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Keywords: | Bacillus salt-tolerant amylase thermostable amylase |
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