Construction of a fungal consortium for effective degradation of rice straw lignin and potential application in bio-pulping

TY - JOUR

T1 - Construction of a fungal consortium for effective degradation of rice straw lignin and potential application in bio-pulping

AU - Wang, Jinghong

AU - Li, Lingling

AU - Xu, Hongmin

AU - Zhang, Yali

AU - Liu, Yuxin

AU - Zhang, Fangzheng

AU - Shen, Guinan

AU - Yan, Lei

AU - Wang, Weiwei

AU - Tang, Hongzhi

AU - Qiu, Huajiao

AU - Gu, Ji-Dong

AU - Wang, Weidong

PY - 2021/11/2

Y1 - 2021/11/2

N2 - To improve the lignin degradation efficiency, we established a co-culture consortium (LDFC) consisting of Trametes hirsuta BYL-3, Trametes versicolor BYL-7 and Trametes hirsuta BYL-8. The testing results showed that the constructed consortium showed improved the lignin degradation rate by fungi. The optimal cultivation conditions were mixture at 1:1:1 vol ratio of each fungus, 7% (w/v) of inoculum amount, culture temperature at 26 °C, pH was 6.9 and 10 days of culturing time. Under these conditions, the degradation rate of lignin was 39.7%, which was 9.3% higher than those before optimization (30.4%). Using rice straw for treatment by LDFC to papermaking, the paper tensile strength was 8 N, and the ring pressure index was 2.46 N·m/g, which meets the standards for the production of corrugated paper for packaging. These results indicate that LDFC has potential application value to convert rice straw resources for bio-pulping to make papers.

AB - To improve the lignin degradation efficiency, we established a co-culture consortium (LDFC) consisting of Trametes hirsuta BYL-3, Trametes versicolor BYL-7 and Trametes hirsuta BYL-8. The testing results showed that the constructed consortium showed improved the lignin degradation rate by fungi. The optimal cultivation conditions were mixture at 1:1:1 vol ratio of each fungus, 7% (w/v) of inoculum amount, culture temperature at 26 °C, pH was 6.9 and 10 days of culturing time. Under these conditions, the degradation rate of lignin was 39.7%, which was 9.3% higher than those before optimization (30.4%). Using rice straw for treatment by LDFC to papermaking, the paper tensile strength was 8 N, and the ring pressure index was 2.46 N·m/g, which meets the standards for the production of corrugated paper for packaging. These results indicate that LDFC has potential application value to convert rice straw resources for bio-pulping to make papers.

KW - Fungal interaction

KW - Optimization

KW - Lignin degradation

KW - Bio-pulping

U2 - 10.1016/j.biortech.2021.126168

DO - 10.1016/j.biortech.2021.126168

M3 - 文章

C2 - 34737050

SN - 0960-8524

JO - Bioresource Technology

JF - Bioresource Technology

ER -