R&D Division, World Institute of Kimchi, Gwangju, Republic of Korea.
Asian Pear Research Institute, Chonnam National University, Gwangju, Republic of Korea.
PLoS One. 2018 Nov 20;13(11):e0207801. doi: 10.1371/journal.pone.0207801. eCollection 2018.
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.
农业废物向有价值化学品的生物转化在生物炼制领域代表了一种很有前景的方法。在此，报道了一种使用乳酸菌从泡菜废物生产有机酸的通用但高效且稳健的方法。所生产的有机酸被测试作为生物防治剂的功效。Lactobacillus sakei WiKim31 和 L. curvatus WiKim38 可以从泡菜废物（3%底物负荷，w/v）中通过同步糖化发酵过程在 48 小时内高效地生产包括乳酸（12.1 和 12.7 g/L）、富马酸（7.4 和 7.1 g/L）和乙酸（4.5 和 4.6 g/L）在内的有机酸，并且在 2.5%浓度下培养滤液可诱导完全杀死 J2s Meloidogyne incognita。这些结果表明，乳酸菌 Lactobacillus sakei WiKim31 和 L. curvatus WiKim38 可以高效地生产有机酸，并且培养滤液可以用作微生物杀线虫剂。
