Insights into lignin bioconversion: lignin-derived compounds treatment of a novel marine fungus K-2

IF 3.5 2区农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY Journal of the Science of Food and Agriculture Pub Date : 2024-10-05 DOI:10.1002/jsfa.13942

Wenxian Liu, Liting Xu, Haina Cheng, Zhu Chen, Hongbo Zhou, Yuguang Wang

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Abstract

BACKGROUND

The potential for the efficient conversion of lignocellulosic biomass has been extensively explored to produce a wide range of bioproducts. Many approaches have been sought for the deep conversion of lignin to generate products that are toxin-free and beneficial for processing into high-value-added components.

RESULTS

This study reported a fungus isolated from the deep sea with strong synthesis of multiple lignocellulases, conversion of lignin and guaiacol (0.1%) by 71.6% and 86.1% within 9 days at 30 °C respectively, and outstanding environmental adaptability (20–50 °C and pH 3–8). Metabolic pathway profiling showed that this fungus utilized lignin to rapidly activate multiple ring-opening reactions including the 2,3- and 3,4-cleavage pathways, with the 2,3-cleavage pathway predominating after 5 days. Conversion of metabolic intermediates confirmed the superb potential of this strain for lignin treatment. Meanwhile, its shikimic acid pathway was metabolically active under lignin.

CONCLUSION

This further expands the potential to produce valuable bioproducts during lignin treatment, especially under ambient conditions, which can significantly enhance high-value precursor compound production. © 2024 Society of Chemical Industry.

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木质素生物转化的启示：新型海洋真菌 K-2 对木质素衍生化合物的处理。

背景：人们广泛探索了木质纤维素生物质高效转化的潜力，以生产多种生物产品。人们一直在寻找许多方法来深度转化木质素，以产生无毒且有利于加工成高附加值成分的产品：本研究报告了一种从深海中分离出来的真菌，该真菌具有多种木质纤维素酶的强合成能力，在 30 °C、9 天内木质素和愈创木酚（0.1%）的转化率分别达到 71.6% 和 86.1%，并且具有出色的环境适应能力（20-50 °C、pH 3-8）。代谢途径分析表明，这种真菌利用木质素迅速激活多种开环反应，包括 2,3- 和 3,4- 裂解途径，其中 2,3- 裂解途径在 5 天后占主导地位。代谢中间产物的转化证实了该菌株处理木质素的巨大潜力。同时，它的莽草酸途径在木质素作用下代谢活跃：结论：这进一步拓展了在木质素处理过程中生产有价值生物产品的潜力，尤其是在环境条件下，可显著提高高价值前体化合物的产量。© 2024 化学工业协会。

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来源期刊

Journal of the Science of Food and Agriculture 工程技术-农业综合

CiteScore

8.10

自引率

4.90%

发文量

634

审稿时长

3.1 months

期刊介绍： The Journal of the Science of Food and Agriculture publishes peer-reviewed original research, reviews, mini-reviews, perspectives and spotlights in these areas, with particular emphasis on interdisciplinary studies at the agriculture/ food interface. Published for SCI by John Wiley & Sons Ltd. SCI (Society of Chemical Industry) is a unique international forum where science meets business on independent, impartial ground. Anyone can join and current Members include consumers, business people, environmentalists, industrialists, farmers, and researchers. The Society offers a chance to share information between sectors as diverse as food and agriculture, pharmaceuticals, biotechnology, materials, chemicals, environmental science and safety. As well as organising educational events, SCI awards a number of prestigious honours and scholarships each year, publishes peer-reviewed journals, and provides Members with news from their sectors in the respected magazine, Chemistry & Industry . Originally established in London in 1881 and in New York in 1894, SCI is a registered charity with Members in over 70 countries.