Abstract
To enhance γ-amminobutyric acid (GABA) production using genetically engineered lactic acid bacteria, glutamate decarboxylase gene was isolated from Lactobacillus plantarum ATCC 14917 and cloned into Lactobacilli-E. coli shuttle-expression vector (pTRKH2) to yield pTRKH2GAD, which was expressed in L. sakei B2-16 isolated from Kimchi. The recombinant L. sakei B2-16 showed 1.35- and 1.42-fold higher GABA production compared to the untransformed strain in 500-mL flask and 5-L fermentor scale, respectively. The maximum GABA concentration was 265.3 mM.
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Kook, MC., Seo, MJ., Cheigh, CI. et al. Enhancement of γ-amminobutyric acid production by Lactobacillus sakei B2–16 expressing glutamate decarboxylase from Lactobacillus plantarum ATCC 14917. J. Korean Soc. Appl. Biol. Chem. 53, 816–820 (2010). https://doi.org/10.3839/jksabc.2010.123
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DOI: https://doi.org/10.3839/jksabc.2010.123