纤维废渣酶水解及L-乳酸发酵的研究Study on Enzymatic Hydrolysis Using Lignocellulosic Residue as Raw Materials for L-Lactic Acid Fermentation
陈育如,夏黎明,岑沛霖
摘要(Abstract)：
木糖厂的纤维废渣中,纤维素为主要成份, 本文用纤维素酶对木糖厂的纤维废渣进行酶解，继而研究了用米根霉进行乳酸发酵。结果表明，实验条件下，纤维废渣可用纤维素酶直接水解或经碱处理后进行酶水解, 9%的纤维废渣经酶解后还原糖浓度为39.6mg·mL-1，纤维素糖化率为68.2%. 物料经碱处理后酶解液的还原糖浓度为48.2mg·mL-1, 比碱处理前提高了约16.1%。水解液用米根霉进行乳酸发酵，乳酸的浓度达到了29.5mg·mL-1，比用碱处理前物料酶解液乳酸发酵的乳酸浓度(24.0mg·mL-1)增加了约23%，但过程的总体效率有待进一步提高。
关键词(KeyWords)： 纤维废渣;纤维素酶;酶水解;米根霉;乳酸发酵
基金项目(Foundation): 国家自然科学基金资助项目!(编号29876036)。
作者(Author): 陈育如,夏黎明,岑沛霖
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