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Metabolic engineering approaches for lactic acid production

Paper ID Volume ID Publish Year Pages File Format Full-Text
36068 45120 2006 10 PDF Available
Title
Metabolic engineering approaches for lactic acid production
Abstract

Lactic acid is an important product of industrial importance. Various approaches using traditional and modern biotechnological approaches have been tried to improve the lactic acid production. The lactic acid bacteria, yeast and fungal systems have been engineered to enhance the lactic acid production. The advent of biotechnology and recognition of industrial applications of lactic acid led to the efforts being focused on use of biotechnological tools to engineer lactic acid bacteria (LAB) and other systems for the production of lactic acid. The initial efforts in LAB genetic modifications were concentrated mostly to develop LAB with enhanced qualities for food grade applications, using traditional approaches. The spontaneous mutations were also attempted by using insertion sequence (IS) elements. The LAB subjected to genetic improvement have been used in dairy industry for flavour enhancement, resistance to bacteriophages, addition of nutritional components and stability and structure of end products. The controlled gene expression systems for industrial gram-positive bacteria with low G + C content have already been reported. However, with the recognition of polylactide as a biodegradable polymer, attempts were directed to reduce the cost of lactic acid production by genetically modifying the organism, by using various cheaply available agro-industrial residues and by process modifications to remove the lactic acid produced during the course of fermentation. The authors here have tried to briefly summaries the various approaches to metabolic engineering used for improving the lactic acid production and cost reduction.

Keywords
Lactic acid bacteria; Genetic modification; Metabolic engineering; Production; Agro-industrial residues
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 5, May 2006, Pages 991–1000
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us