木薯渣的稀酸水解及用于丁酸固定化发酵
Journal Title: Science Paper Online - Year 2010, Vol 5, Issue 3
Abstract
对木薯渣酸水解糖化的工艺条件进行了研究，考察了稀酸浓度、温度、时间及液固比对木薯渣酸水解的影响。结果表明：木薯渣经过稀硫酸处理，可以产生大量的还原糖。在正交实验得到的常压下和高压蒸汽下加热水解的最佳条件，还原糖得率都可达52%以上。进行了木薯渣水解液用于丁酸固定化发酵的试验。以木薯渣稀酸水解液为底物，丁酸浓度达到23.8 g/L以上，丁酸对还原糖的得率达0.462 g/g，产率达到0.992 g/L•H，与同浓度葡萄糖的合成培养基相比，丁酸浓度提高了31.6%，丁酸得率提高了20 %，产率提高1倍以上，表明木薯渣水解液是适于丁酸发酵的又一个优质碳源。
Authors and Affiliations
Yijuan Xiang, Jin Cai , Ling Jiang
Keywords
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