当前位置: 首页 > 文章 > 亚麻脱胶用复合酶高产菌株的诱变选育 西北农业学报 2010,19 (1) 191-193+206
Position: Home > Articles > Screening of High-yielding Flax Retting Enzyme Mutant Acta Agriculturae Boreali-occidentalis Sinica 2010,19 (1) 191-193+206

亚麻脱胶用复合酶高产菌株的诱变选育

作  者:
田英华;刘晓兰;郑喜群
单  位:
齐齐哈尔大学生命科学与工程学院齐齐哈尔大学农产品加工黑龙江省普通高校重点实验室
关键词:
诱变;紫外线;黑曲霉;聚半乳糖醛酸酶;木聚糖酶
摘  要:
以黑曲霉(Aspergillus niger)HYA4为出发菌株,采用紫外线(UV)进行诱变处理。在最佳紫外线照射剂量120s的处理条件下,筛选获得了一株亚麻脱胶酶高产突变株黑曲霉A15。经过连续传接5代,该菌株产酶稳定性良好。固体发酵后聚半乳糖醛酸酶活力达到2854.27U/g,木聚糖酶活力可达97.01U/g,分别比出发菌株黑曲霉HYA4提高了59%和26%。
译  名:
Screening of High-yielding Flax Retting Enzyme Mutant
作  者:
TIAN Yinghua,LIU Xiaolan and ZHENG Xiqun(College of Life Science and Engineering,Key Laboratory of Processing Agricultural Products of Heilongjiang Province,Qiqihar University,Qiqihar Heilongjiang 161006,China)
关键词:
Mutate; UV; Aspergillus niger; Polygalacturonase; Xylanase
摘  要:
The Aspergillus niger HYA4 was treated by UV,and 120 seconds was the optimum dosage.The high-yielding strain A15 was obtained by screen.The activity of polygalacturonase and xylanase for the fifth subsequent generation of subcultures reached 2 854.27 U/g and 97.01 U/g respectively,which increased 59% and 26% than HYA4.

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