A novel lactic acid bacterium for the production of high purity L-lactic acid, Lactobacillus paracasei subsp paracasei CHB2121

Title
A novel lactic acid bacterium for the production of high purity L-lactic acid, Lactobacillus paracasei subsp paracasei CHB2121
Author(s)
문세권[문세권]위영중최기욱[최기욱]
Keywords
L(+)-LACTIC ACID; SAGO STARCH; FERMENTATION; PH
Issue Date
201208
Publisher
SOC BIOSCIENCE BIOENGINEERING JAPAN
Citation
JOURNAL OF BIOSCIENCE AND BIOENGINEERING, v.114, no.2, pp.155 - 159
Abstract
Fermentation-derived lactic acid has several potential industrial uses as an intermediate carbon chemical and a raw material for biodegradable polymer. We therefore undertook the identification of a novel bacterial strain that is capable of producing high concentrations of lactic acid and has potential commercial applications. A novel L(+)-lactic acid producing bacterium, Lactobacillus paracasei subsp. paracasei CHB2121 was isolated from soil obtained near an ethanol production factory and identified by 16S rRNA gene sequence analysis and characterization using an API 50 CHL kit. L. paracasei subsp. paracasei CHB2121 efficiently produced 192 g/L lactic acid from medium containing 200 g/L of glucose, with 3.99 g/(L.h) productivity, and 0.96 g/g yield. In addition, the optical purity of the produced lactic acid was estimated to be 96.6% L(+)-lactic acid. The newly identified L. paracasei subsp. paracasei CHB2121 efficiently produces high concentrations of lactic acid, and may be suitable for use in the industrial production of lactic acid. (c) 2012, The Society for Biotechnology, Japan. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/27498http://dx.doi.org/10.1016/j.jbiosc.2012.03.016
ISSN
1389-1723
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자연자원대학 > 식품공학과 > Articles
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