Study on stability of microbial β-glucanase

In order to improve the β-glucanase stability, the effect of different substances on β-glucanase stability was studied through single factor experiments, and the orthogonal experiment was used to optimize the complex protective agents. Finally, stability of enzyme with or without complex protective...

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Main Authors: ZHANG Xiu-yan, HE Guo-qing
Format: Article
Language:English
Published: Zhejiang University Press 2007-07-01
Series:浙江大学学报. 农业与生命科学版
Subjects:
Online Access:https://www.academax.com/doi/10.3785/1008-9209.2007.04.0387
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author ZHANG Xiu-yan
HE Guo-qing
author_facet ZHANG Xiu-yan
HE Guo-qing
author_sort ZHANG Xiu-yan
collection DOAJ
description In order to improve the β-glucanase stability, the effect of different substances on β-glucanase stability was studied through single factor experiments, and the orthogonal experiment was used to optimize the complex protective agents. Finally, stability of enzyme with or without complex protective agents was measured. Results indicate that the albumin, glutin and CaCl<sub>2</sub>·H<sub>2</sub>O can enhance the enzyme stability. There is a remarkable synergistic effect when the three protective agents are mixed to use. The complex protective agents consists of 0.8% albumin (W/V), 2% glutin (W/V) and 1 mmol·L<sup>-1</sup> CaCl<sub>2</sub>·H<sub>2</sub>O.The t<sub>1/2</sub> value of enzyme with protective agents is 4℃ higher than that of enzyme with no protective agent. The thermal degradation rate is -0.0398 for enzyme with protective agent and -0.084 for enzyme with no protective agent at 36.2℃. The results above suggest that the complex protective agents can effectively enhance the thermostability and storage stability of β-glucanase.
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series 浙江大学学报. 农业与生命科学版
spelling doaj-art-9fdbe4229a5247bc832c28435a2489bf2025-08-20T03:58:11ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552007-07-013338739110.3785/1008-9209.2007.04.038710089209Study on stability of microbial β-glucanaseZHANG Xiu-yanHE Guo-qingIn order to improve the β-glucanase stability, the effect of different substances on β-glucanase stability was studied through single factor experiments, and the orthogonal experiment was used to optimize the complex protective agents. Finally, stability of enzyme with or without complex protective agents was measured. Results indicate that the albumin, glutin and CaCl<sub>2</sub>·H<sub>2</sub>O can enhance the enzyme stability. There is a remarkable synergistic effect when the three protective agents are mixed to use. The complex protective agents consists of 0.8% albumin (W/V), 2% glutin (W/V) and 1 mmol·L<sup>-1</sup> CaCl<sub>2</sub>·H<sub>2</sub>O.The t<sub>1/2</sub> value of enzyme with protective agents is 4℃ higher than that of enzyme with no protective agent. The thermal degradation rate is -0.0398 for enzyme with protective agent and -0.084 for enzyme with no protective agent at 36.2℃. The results above suggest that the complex protective agents can effectively enhance the thermostability and storage stability of β-glucanase.https://www.academax.com/doi/10.3785/1008-9209.2007.04.0387β-glucanaseprotective agentstability
spellingShingle ZHANG Xiu-yan
HE Guo-qing
Study on stability of microbial β-glucanase
浙江大学学报. 农业与生命科学版
β-glucanase
protective agent
stability
title Study on stability of microbial β-glucanase
title_full Study on stability of microbial β-glucanase
title_fullStr Study on stability of microbial β-glucanase
title_full_unstemmed Study on stability of microbial β-glucanase
title_short Study on stability of microbial β-glucanase
title_sort study on stability of microbial β glucanase
topic β-glucanase
protective agent
stability
url https://www.academax.com/doi/10.3785/1008-9209.2007.04.0387
work_keys_str_mv AT zhangxiuyan studyonstabilityofmicrobialbglucanase
AT heguoqing studyonstabilityofmicrobialbglucanase