Molecules, Vol. 23, Pages 2626: Biodetoxification of Phenolic Inhibitors from Lignocellulose Pretreatment using Kurthia huakuii LAM0618T and Subsequent Lactic Acid Fermentation

Molecules, Vol. 23, Pages 2626: Biodetoxification of Phenolic Inhibitors from Lignocellulose Pretreatment using Kurthia huakuii LAM0618T and Subsequent Lactic Acid Fermentation
Molecules doi: 10.3390/molecules23102626
Authors:
Yuejiao Xie
Qing Hu
Guodong Feng
Xu Jiang
Jinlong Hu
Mingxiong He
Guoquan Hu
Shumiao Zhao
Yunxiang Liang
Zhiyong Ruan
Nan Peng

Phenolic inhibitors generated during alkaline pretreatment of lignocellulosic biomasses significantly hinder bacterial growth and subsequent biofuel and biochemical production. Water rinsing is an efficient method for removing these compounds. Nevertheless, this method often generates a great amount of wastewater, and leads to the loss of solid fiber particles and fermentable sugars. Kurthia huakuii LAM0618T, a recently identified microorganism, was herein shown to be able to efficiently transform phenolic compounds (syringaldehyde, hydroxybenzaldehyde, and vanillin) into less toxic acids. Taking advantage of these properties, a biodetoxification method was established by inoculating K. huakuii LAM0618T into the NH3/H2O2-pretreated unwashed corn stover to degrade phenolic inhibitors and weak acids generated during the pretreatment. Subsequently, 33.47 and 17.91 g/L lactic acid was produced by Bacillus coagulans LA204 at 50 °C through simultaneous saccharification and fermentation (SSF) from 8% (w/w) of NH3/H2O2-pretreated corn stover with or without K. huakuii LAM0618T-biodetoxification, i...

Source: Molecules - October 12, 2018 Category: Chemistry Authors: Yuejiao Xie Qing Hu Guodong Feng Xu Jiang Jinlong Hu Mingxiong He Guoquan Hu Shumiao Zhao Yunxiang Liang Zhiyong Ruan Nan Peng Tags: Article Source Type: research