%0 Journal Article %@ 21655979 %A Thuy, D.T.B. %A Nguyen, A. %A Khoo, K.S. %A Chew, K.W. %A Cnockaert, M. %A Vandamme, P. %A Ho, Y.-C. %A Huy, N.D. %A Cocoletzi, H.H. %A Show, P.L. %D 2021 %F scholars:15958 %I Bellwether Publishing, Ltd. %J Bioengineered %K 4 aminobutyric acid; catalase; glutamate sodium; glutamic acid; phenylalanine transfer RNA ligase; succinate semialdehyde dehydrogenase; transfer RNA; 4 aminobutyric acid, Article; bacterial growth; bacterial strain; bacterium culture; bacterium identification; bacterium isolation; biodegradation; biomass conversion; bioremediation; biotransformation; cell density; colony forming unit; controlled study; environmental stress; fermented product; fish; food industry; high performance liquid chromatography; lactic acid bacterium; matrix assisted laser desorption ionization time of flight mass spectrometry; nonhuman; particle size; Pediococcus pentosaceus; pH; pH measurement; process optimization; sequence analysis; spectrophotometry; temperature; time of flight mass spectrometry; cell culture technique; culture medium; fish product; metabolism; microbiology; Pediococcus pentosaceus, Cell Culture Techniques; Culture Media; Fermented Foods and Beverages; Fish Products; gamma-Aminobutyric Acid; Pediococcus pentosaceus; Sodium Glutamate %N 1 %P 54-62 %R 10.1080/21655979.2020.1857626 %T Optimization of culture conditions for gamma-aminobutyric acid production by newly identified Pediococcus pentosaceus MN12 isolated from �mam nem�, a fermented fish sauce %U https://khub.utp.edu.my/scholars/15958/ %V 12 %X This study was aimed to identify and optimize the culture conditions for gamma-aminobutyric acid (GABA) production by a lactic acid bacterium strain isolated from mam nem, a fermented fish sauce. Among the six isolates obtained from mam nem, the MN12 had the most potent GABA-producing capability. The strain was then identified to be Pedioccocus pentosaceus by employing MALDI-TOF-MS and phenylalanyl-tRNA synthase sequencing methods. The initial cell density of 5.106 CFU/mL, monosodium glutamate concentration of 60 mM, initial pH of 7, temperature of 45°C and cultivation time of 72 h were found to be the optimal culture conditions for highest production of GABA, reaching 27.9 ± 0.42 mM, by this strain. The cultivation conditions for GABA production by P. pentosaceus MN12 have been successfully optimized, providing a foundation for the development of fermented foods enriched with GABA. © 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. %Z cited By 11