Good hydrolysis activity on raffinose family oligosaccharides by a novel alpha-galactosidase from Tremella aurantialba

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成果类型：

期刊论文

作者：

Geng, Xueran;Yang, Dongxue;Zhang, Qiaoyi;Chang, Mingchang;Xu, Lijing;...

通讯作者：

Meng, Junlong;Wang, Hexiang

作者机构：

[Meng, Junlong; Chang, Mingchang; Cheng, Yanfen; Xu, Lijing; Geng, Xueran] Shanxi Agr Univ, Coll Food Sci & Engn, Taigu 030801, Shanxi, Peoples R China.

[Meng, Junlong; Chang, Mingchang; Cheng, Yanfen; Xu, Lijing; Geng, Xueran] Collaborat Innovat Ctr Adv Qual & Efficiency Loes, Taigu 030801, Shanxi, Peoples R China.

[Wang, Hexiang; Yang, Dongxue; Geng, Xueran] China Agr Univ, State Key Lab Agrobiotechnol, Beijing 100193, Peoples R China.

[Wang, Hexiang; Yang, Dongxue; Geng, Xueran] China Agr Univ, Dept Microbiol, Beijing 100193, Peoples R China.

[Zhang, Qiaoyi] Hunan Agr Univ, Orient Sci & Technol Coll, Changsha, Peoples R China.

通讯机构：

[Meng, Junlong] S

[Wang, Hexiang] C

Shanxi Agr Univ, Coll Food Sci & Engn, Taigu 030801, Shanxi, Peoples R China.

China Agr Univ, State Key Lab Agrobiotechnol, Beijing 100193, Peoples R China.

China Agr Univ, Dept Microbiol, Beijing 100193, Peoples R China.

语种：

英文

关键词：

Tremella aurantialba;mushroom;oligosaccharides;alpha-galactosidase

期刊：

International Journal of Biological Macromolecules

ISSN：

0141-8130

年：

2020

卷：

150

页码：

1249-1257

DOI：

10.1016/j.ijbiomac.2019.10.136

基金类别：

Higher Education Technology Innovation Project in Shanxi [2019L0373]; Doctoral Science Foundation of Shanxi Agricultural University [2017YJ33, 2015YJ04, 2014YJ09]; Reward to Outstanding Doctor Working in Shanxi [SXYBKY201722]; Applied Basic Research Project in Shanxi [201801D221300, 201701D221156]

机构署名：

本校为其他机构

院系归属：

东方科技学院

摘要：

An alpha-galactosidase designated as TAG was purified from the dried fruit bodies of Tremella aurantialba with 182.5-fold purification. The purification procedure involved ion exchange chromatography on Q-sepharose, DEAE-Cellulose, and Mono Q and gel filtration by FPLC on Superdex 75. The purified alpha-galactosidase was a monomeric protein with a molecular mass of 88 kDa. The optimal pH of TAG was 5.0 and more than 60% of the original enzyme activity remained at pH 2.0 and 3.0. Its optimal temperature was 54 degrees C with good thermo-stability, 30.8% of the original activity was retained aft...

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Good hydrolysis activity on raffinose family oligosaccharides by a novel alpha-galactosidase from Tremella aurantialba

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