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PLoS One. 2018 Nov 20;13(11):e0207801. doi: 10.1371/journal.pone.0207801. eCollection 2018.

Effective approach to organic acid production from agricultural kimchi cabbage waste and its potential application.

Author information

1
R&D Division, World Institute of Kimchi, Gwangju, Republic of Korea.
2
Asian Pear Research Institute, Chonnam National University, Gwangju, Republic of Korea.
3
Division of Applied Bioscience & Biotechnology, Chonnam National University, Gwangju, Republic of Korea.

Abstract

The biotransformation of agricultural waste into valuable chemicals represents a promising approach in the field of biorefining. Herein, a general but highly efficient and robust process is reported for the production of organic acid from kimchi cabbage waste using lactic acid bacteria. The organic acid produced was tested for efficacy as a biological control agent. Lactobacillus sakei WiKim31 and L. curvatus WiKim38 could efficiently produce organic acids including lactic acid (12.1 and 12.7 g/L), fumaric acid (7.4 and 7.1 g/L), and acetic acid (4.5 and 4.6 g/L) from kimchi cabbage waste (3% substrate loading, w/v) by simultaneous saccharification and fermentation processes for 48 h, and the culture filtrate induced complete mortality of J2s Meloidogyne incognita at 2.5% concentration. These results suggested that lactic acid bacteria L. sakei WiKim31 and L. curvatus WiKim38 can efficiently produce organic acids, and the culture filtrate can be applied as a microbial nematicide.

Conflict of interest statement

The authors have declared that no competing interests exist.

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