|本期目录/Table of Contents|

[1]孙曼钰,李栋梁,舒月力,等.尖孢镰刀菌诱导产酶及同步糖化发酵产纤维素乙醇[J].江苏农业科学,2019,47(02):277-281.
 Sun Manyu,et al.Production of cellulase induced by Fusarium oxysporum and production of cellulosic ethanol by simultaneous saccharification fermentation[J].Jiangsu Agricultural Sciences,2019,47(02):277-281.
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尖孢镰刀菌诱导产酶及同步糖化发酵产纤维素乙醇(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第47卷
期数:
2019年第02期
页码:
277-281
栏目:
资源与环境
出版日期:
2019-01-20

文章信息/Info

Title:
Production of cellulase induced by Fusarium oxysporum and production of cellulosic ethanol by simultaneous saccharification fermentation
作者:
孙曼钰 李栋梁 舒月力 贾士儒 钟成
天津科技大学生物工程学院,天津 300457
Author(s):
Sun Manyuet al
关键词:
尖孢镰刀菌纤维素酶同步糖化发酵乙醇
Keywords:
-
分类号:
S188+.4
DOI:
-
文献标志码:
A
摘要:
以尖孢镰刀菌为研究对象,探究其诱导产酶及同步糖化发酵产纤维素乙醇的影响。选取不同诱导底物、产酶培养基以及发酵时间,通过测定发酵液中羧甲基纤维素酶活性和木聚糖酶活性,确定最佳诱导产酶条件。最佳诱导产酶培养基:底物30 g/L,羧甲基纤维素钠(CMC-Na) 5 g/L,蛋白胨10 g/L,磷酸二氢钾1 g/L,硫酸镁0.2 g/L,硫酸铵3 g/L,pH值6.0。最佳诱导产酶的底物为小麦秸秆,发酵4 d羧甲基纤维素酶活性达到12.40 U/mL,木聚糖酶活性达到 930.9 U/mL。尖孢镰刀菌诱导所产纤维素酶具有较好的pH值稳定性和温度稳定性,在一定程度上能弥补真菌纤维素酶耐碱性差和细菌纤维素酶活性低的不足。将其作为乙醇发酵菌种进行木质纤维素同步糖化发酵,在3%葡聚糖负荷下,96 h生成乙醇12.23 g/L,乙醇得率为71.81%。将其与酿酒酵母混菌同步糖化发酵,48 h添加木糖利用率最高,96 h生成乙醇19.11 g/L,乙醇得率82.11%。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2017-09-26
基金项目:公益性行业(农业)科研专项(编号:201503135-15)。
作者简介:孙曼钰(1993—),女,湖南南县人,硕士研究生,主要从事木质纤维素生物质降解研究。Tel:(022)60601606;E-mail:sunmanyu24@163.com。
通信作者:钟成,博士,教授,主要从事纤维素的生物合成与降解机理研究。Tel:(022)60601606;E-mail:czhong@tust.edu.cn。
更新日期/Last Update: 2019-01-20