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

IF 3.3 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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引用次数: 0

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.