Biochemical Characterization of Xylanases from Streptomyces sp. B6 and Their Application in the Xylooligosaccharide Production from Viscose Fiber Production Waste
메타 데이터
바이오화학분류
바이오플라스틱
플라스틱
바이오정밀화학
연료
기타
논문
Biochemical Characterization of Xylanases from Streptomyces sp. B6 and Their Application in the Xylooligosaccharide Production from Viscose Fiber Production Waste
<P>Enzymatic hydrolysis of xylan represents a promising way to produce xylooligosaccharide (XOS), which is a novel ingredient in functional food. However, the recalcitrance of xylan in natural lignocellulosic biomass entails effective and robust xylanases. In the present study, we reported the isolation of a thermophilic <I>Streptomyces</I> sp. B6 from mushroom compost producing high xylanase activity. Two xylanases of <I>Streptomyces</I> sp. B6 belonging to GH10 (XynST10) and GH11 (XynST11) families were thus identified and biochemically characterized to be robust enzymes with high alkaline- and thermostability. Direct hydrolysis of neutralized viscose fiber production waste using XynST10 and XynST11 showed that while XynST10 produced 23.22 g/L XOS with a degree of polymerization (DP) of 2-4 and 9.27 g/L xylose, XynST11 produced much less xylose (1.19 g/L) and a higher amounts of XOS with a DP = 2-4 (28.29 g/L). Thus, XynST11 holds great potential for the production of XOS from agricultural and industrial waste.</P><BR>[FIG OMISSION]</BR>