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Streptomyces sp. SK519 was cultivated in the medium containing 0.5% birch wood xylan to produce extracellular xylanase. The xylanase was isolated from the culture supernatant by ammonium sulfate precipitation and partially purified by absorbing on the insoluble xylan. Alkali-extracted kenaf glucuronoylan of which main chain primarily consisting of (1-4)-linked β-D-xylopyranose (Xylp), some of which...
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