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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Insights into the mechanism of lignocellulose degradation by versatile peroxidases
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Insights into the mechanism of lignocellulose degradation by versatile peroxidases

机译：多功能过氧化物酶的Ligncellulose降解的机理洞察

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摘要

Lignocelluloses are imperative structural components of plant cell wall and are profusely found in agricultural crop residues. The structural heterogeneity and recalcitrance of lignin limit the accessibility of cell wall carbohydrates for constructive exploitation. During the past decades, diverse lignin degrading enzymes were characterized to facilitate the utilization of lignocellulosic biomass for technological applications. Versatile peroxidases are unique among ligninolytic enzymes for their remarkably high redox potential and ability to oxidize lignin without the requisite of redox mediators. The hybrid structural architecture of this enzyme bearing functional features of lignin peroxidase and manganese peroxidase demonstrates its versatility in aromatics oxidation. This review summarizes the distinctive structural aspects of fungal versatile peroxidase in correlation to its oxidation of aromatic substrates besides emphasizing on the catalytic environment conducive for substrate oxidation. This review also focuses on the general strategies employed for production of this enzyme, its molecular framework, potential biotechnological applications of versatile peroxidase and prospects on enhancing the production of enzyme. Finally, the significance of this enzyme in improving the nutritive value of crop residues to promote ruminal productivity is highlighted.
机译：木质纤维素是植物细胞壁的势在必行的结构组分，并且在农业作物残留物中发现。木质素的结构异质性和顽固限制了细胞壁碳水化合物的可及性建设性剥削。在过去几十年中，特征在于，不同的木质素降解酶以促进木质纤维素生物质用于技术应用的利用。多功能过氧化物酶在木质素溶解酶中是独一无二的，因为它们具有显着高的氧化还原潜力和氧化木质素的能力，而无需氧化还原介质。木质素过氧化物酶和锰过氧化物酶的这种酶功能特征的杂交结构结构证明了其在芳烃氧化中的通用性。本综述总结了真菌通用过氧化物酶的独特结构方面，其与其氧化族底物的氧化外部除了强调底物氧化的催化环境。本综述还侧重于生产该酶的一般策略，其分子骨架，潜在的过氧化物酶的潜在生物技术应用和提高酶生产的前景。最后，突出了该酶在提高作物残留物的营养价值以促进瘤胃生产率的重要性。

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