Xylanase production by a new alkali-tolerant isolate of Bacillus (original) (raw)

1998, Biotechnology Letters

The xylanolytic system of an alkali-tolerant Bacillus sp. consists of several xylanases ranging from 22 to 120 kDa and pI values from 7.0 to 9.0. Crude xylanase retained 72% of initial activity after 5 h at pH 9.0 and 45°C. Xylanase production was induced by xylose and xylan and was maximum at 42°C and pH 7.8. Crude xylanase released xylotriose and xylotetraose as main products of xylan hydrolysis. Xylose was not detected. © Rapid Science Ltd. 1998

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