菌酶协同发酵玉米芯制备木聚糖的研究
发布时间：2019-07-12 15:15
【摘要】：为研究固态发酵玉米芯制备木聚糖的最佳菌酶组合条件,本试验以木聚糖含量为指标,采用单因素试验,依次研究单菌发酵、双菌发酵、菌种比例、单酶发酵、双酶发酵、双酶比例、酶的用量对发酵产物中木聚糖含量的影响。结果表明:发酵玉米芯制备木聚糖的最佳菌酶组合条件为:枯草芽孢杆菌与酵母菌比例为1∶9,发酵时添加纤维素酶量为1000 U/g饲料。在此条件下,木聚糖含量可达1.421 mg/g,与对照组相比显著提高了257%。
[Abstract]:In order to study the optimum conditions of xylan preparation from corncob by solid-state fermentation, the effects of single-bacteria fermentation, double-bacteria fermentation, strain ratio, single enzyme fermentation, double enzyme ratio and enzyme dosage on xylan content in fermentation products were studied by single factor test with xylan content as index. The results showed that the optimum conditions for the preparation of xylan from corncob were as follows: the ratio of Bacillus subtilis to yeast was 1 鈮，
本文编号：2513789
[Abstract]:In order to study the optimum conditions of xylan preparation from corncob by solid-state fermentation, the effects of single-bacteria fermentation, double-bacteria fermentation, strain ratio, single enzyme fermentation, double enzyme ratio and enzyme dosage on xylan content in fermentation products were studied by single factor test with xylan content as index. The results showed that the optimum conditions for the preparation of xylan from corncob were as follows: the ratio of Bacillus subtilis to yeast was 1 鈮，
本文编号：2513789
本文链接：https://www.wllwen.com/yixuelunwen/dongwuyixue/2513789.html
