| Cell immobilization for production of lactic acid biofilms do it naturally. | |
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MedLine Citation:
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PMID: 20378053 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Interest in natural cell immobilization or biofilms for lactic acid fermentation has developed considerably over the last few decades. Many studies report the benefits associated with biofilms as industrial methods for food production and for wastewater treatment, since the formation represents a protective means of microbial growth offering survival advantages to cells in toxic environments. The formation of biofilms is a natural process in which microbial cells adsorb to a support without chemicals or polymers that entrap the cells and is dependent on the reactor environment, microorganism, and characteristics of the support. These unique characteristics enable biofilms to cause chronic infections, disease, food spoilage, and devastating effects as in microbial corrosion. Their distinct resistance to toxicity, high biomass potential, and improved stability over cells in suspension make biofilms a good tool for improving the industrial economics of biological lactic acid production. Lactic acid bacteria and specific filamentous fungi are the main sources of biological lactic acid. Over the past two decades, studies have focused on improving the lactic acid volumetric productivity through reactor design development, new support materials, and improvements in microbial production strains. To illustrate the operational designs applied to the natural immobilization of lactic acid producing microorganisms, this chapter presents the results of a search for optimum parameters and how they are affected by the physical, chemical, and biological variables of the process. We will place particular emphasis upon the relationship between lactic acid productivity attained by various types of reactors, supports, media formulations, and lactic acid producing microorganisms. |
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Authors:
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Suzanne F Dagher; Alicia L Ragout; Faustino Si?eriz; Jos? M Bruno-B?rcena |
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Publication Detail:
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Type: Journal Article; Review Date: 2010-02-20 |
Journal Detail:
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Title: Advances in applied microbiology Volume: 71 ISSN: 0065-2164 ISO Abbreviation: Adv. Appl. Microbiol. Publication Date: 2010 |
Date Detail:
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Created Date: 2010-04-09 Completed Date: 2010-05-18 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0370413 Medline TA: Adv Appl Microbiol Country: United States |
Other Details:
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Languages: eng Pagination: 113-48 Citation Subset: IM |
Copyright Information:
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Copyright (c) 2010 Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Microbiology, North Carolina State University, Raleigh, North Carolina, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Biofilms
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growth & development* Bioreactors Biotechnology / methods Cells, Immobilized* Fermentation Industrial Microbiology / methods* Lactic Acid / biosynthesis* Lactobacillus / classification, growth & development, metabolism, physiology* |
| Chemical | |
Reg. No./Substance:
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50-21-5/Lactic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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