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Title: Thermoactive alkali-stable xylanase production from a newly isolated Streptomyces sp. SU 9
Authors: Bajaj, Bijender K
Razdan, Konika
Sharma, Ajay
Keywords: Streptomyces sp;Xylanase;Wheat bran;Wheat straw;Alkali-stable;Thermoactive
Issue Date: Sep-2010
Publisher: NISCAIR-CSIR, India
Abstract: Xylanases being used for several industrial processes under harsh conditions must be robust. A Streptomyces sp. SU9 isolated from humus was found to produce highly thermoactive (optimum temperature 80oC) and alkali-stable (optimum pH 9.0) xylanase. The organism not only utilized agricultural-based carbon sources like wheat bran and wheat straw, but produced xylanase titre (5200 IU/L) higher than that obtained on pure xylan (2600 IU/L), rendering economy to production and application. Yeast extract as nitrogen source promoted maximum xylanase production compared to soybean meal and peptone. The xylanase was stable over a pH range of 6-9. Thermoactivity of xylanase was moderate as it inactivated upon incubation above 60oC for 30 min.
Page(s): 375-380
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.17(5) [September 2010]

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