| Jerusalem artichoke powder: A useful material in producing high-optical-purity l-lactate using an efficient sugar-utilizing thermophilic Bacillus coagulans strain. | |
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MedLine Citation:
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PMID: 23306126 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Jerusalem artichoke is a low-requirement crop, which does not interfere with food chain, and is a promising carbon source for industrial fermentation. Microbial conversion of such a renewable raw material to useful products, such as lactic acid, is an important objective in industrial biotechnology. In this study, high-optical-purity l-lactate was efficiently produced from the hydrolysates of Jerusalem artichoke powder by a thermophilic bacterium, Bacillus coagulans XZL4. High l-lactate production (134gl(-1)) was obtained using 267gl(-1) Jerusalem artichoke powder (total reducing sugars of 140gl(-1)) and 10gl(-1) of corn steep powder in fed-batch fermentation, with an average productivity of 2.5gl(-1)h(-1) and a yield of 0.96gg(-1) reducing sugars. The final product optical purity is 99%, which meets the requirement of lactic acid polymerization. Our study represents a cost-effective and promising method for polymer-grade l-lactate production using a cheap raw bio-resource. |
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Authors:
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Limin Wang; Zhangwei Xue; Bo Zhao; Bo Yu; Ping Xu; Yanhe Ma |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-12-8 |
Journal Detail:
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Title: Bioresource technology Volume: 130C ISSN: 1873-2976 ISO Abbreviation: Bioresour. Technol. Publication Date: 2012 Dec |
Date Detail:
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Created Date: 2013-1-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9889523 Medline TA: Bioresour Technol Country: - |
Other Details:
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Languages: ENG Pagination: 174-180 Citation Subset: - |
Copyright Information:
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Copyright © 2012 Elsevier Ltd. All rights reserved. |
Affiliation:
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Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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