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

Trametes versicolor

OncologyImmune support

SpeciesTurkey Tail, Yun Zhi

JournalBioresource technology

Year2022

Key points

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

Metadata-grounded summary

Citation abstract

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.

Citation

Wang J, Li L, Xu H, Zhang Y, Liu Y, Zhang F, et al. (2022). Construction of a fungal consortium for effective degradation of rice straw lignin and potential application in bio-pulping. Bioresource technology https://doi.org/10.1016/j.biortech.2021.126168 PMID: 34737050

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