|本期目录/Table of Contents|

[1]张慧,邱日永,刘明杰,等.极耐热性β-葡萄糖苷酶基因克隆、超量表达及其在天然蓝色素工业化生产中的应用[J].江苏农业科学,2013,41(07):19-22.
 Zhang Hui,et al.Cloning and high level expression of thermostable β-glucosidase and its application in industrial production of natural blue pigments[J].Jiangsu Agricultural Sciences,2013,41(07):19-22.
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极耐热性β-葡萄糖苷酶基因克隆、超量表达及其在天然蓝色素工业化生产中的应用(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第41卷
期数:
2013年07期
页码:
19-22
栏目:
生物技术
出版日期:
2013-07-25

文章信息/Info

Title:
Cloning and high level expression of thermostable β-glucosidase and its application in industrial production of natural blue pigments
作者:
张慧 邱日永 刘明杰 王未未 邵蔚蓝
南京师范大学生命科学学院,江苏南京 210023
Author(s):
Zhang Huiet al
关键词:
β-葡萄糖苷酶可溶性表达栀子苷初级氨基酸天然蓝色素色价
Keywords:
-
分类号:
Q785
DOI:
-
文献标志码:
A
摘要:
从嗜热菌属的海栖热袍菌(Thermotoga maritima MSB8 ATCC43589)中扩增出编码极耐热性β-葡萄糖苷酶基因A,连接到新型热激载体pHsh上,得到重组质粒pHsh-bglA-WT和pHsh-bglA-M,并在大肠杆菌中实现了高水平可溶性表达,比酶活分别为25.7 U/mg和107.1 U/mg。通过热处理和DEAE Sepharose Fast Flow阴离子交换层析两步纯化方法处理后,经SDS-PAGE检测条带单一,比酶活达到1 746.2 U/mg,纯化倍数16.2,得率为17.5%。β-葡萄糖苷酶在以栀子苷和甘氨酸为原料的情况下,按照8.8 ∶1.4的比例,80 ℃条件下反应3 h,获得大量可食天然蓝色素,得到的天然蓝色素的色价E(1%)为426。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-03-11
作者简介:张慧(1986—),男,河南商丘人,硕士研究生,主要从事基因工程方面的研究。E-mail:wwwlmj163@sina.com。
通信作者:邵蔚蓝,教授,博士生导师,主要从事基因工程和代谢工程方面的研究。Tel:(025)85891836;E-mail:shaoweilan@njnu.edu.cn。
更新日期/Last Update: 2013-07-25