嗜热真菌Thermomyces lanuginosus TP-1的培养及其产木聚糖酶性质研究  

Studies on the Cultivation of Thermomyces lanuginosus TP-1 and the Xylanase Properties from the Thermophilic Fungus

作　　者：赵新河[1] 王剑锋[2] 裴疆森[3] 

机构地区：[1]海南大学食品学院 [2]东华理工大学生物系,江西抚州344000 [3]中国食品发酵工业研究院,北京100027

出　　处：《食品与发酵工业》2009年第3期58-63,共6页Food and Fermentation Industries

摘　　要：从高温酒曲中分离获得1株丝状真菌,暂定为梳棉状嗜热丝孢菌。该菌适宜高温条件生长,木聚糖酶活力也是高温下较高,酶的最适温度为55℃,最适pH为5～7,金属离子对酶活有一定的影响,用GPC方法测定木聚糖酶的分子质量为6500u。A filamentous fungus identified as Thermomyces lanuginosus was separated from a high temperature Chinese spirit koji. The fungus preferred higher growth and xylanase secreting temperature. The optimal temperature for the xylanase was 55℃, and optimal pH range was 5.0-7.0. Metallic ions showed effects on the enzymatic activities. The molecular weight of the xylanase was measured with GPC as about 6. 5ku.

关 键 词：嗜热真菌 疏棉状嗜热丝孢菌 木聚糖酶 

分 类 号：TS201.2[轻工技术与工程—食品科学]