巴西真菌分离物深层发酵木质素酶生产及Mnp部分纯化

M. Ferhan, Alcides Ll, I. S. Melo, N. Yan, M. Sain
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引用次数: 15

摘要

木质素酶作为木质素有效增值的绿色工具的潜力可以通过含有不同木质素降解酶的酶鸡尾酒来显示。本研究对木质素树皮液化的潜在真菌菌株进行了筛选。从10种不同的菌株中筛选出3种不同的本地分离菌株(Pleurotus ostreatus POS97/14、Pycnoporus sanguineus和本地分离的真菌菌株)生产木质素酶。在局部分离的真菌菌株中,经过10天的深层发酵,酶的产量达到最高。分离的真菌菌株主要产生锰过氧化物酶(MnP)的木质素酶。该酶可以氧化多种常见的MnP底物,包括木质素相关的酚类。通过FPLC对MnP进行部分纯化,SDS-PAGE对MnP的分子量进行测定。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ligninases Production and Partial Purification of Mnp from Brazilian Fungal Isolate in Submerged Fermentation
The potential of ligninases as a green tool for effective valorization of lignin can be shown through enzymatic cocktails containing different lignin degrading enzymes. The present study deals with the screening of potential fungal strains useful for the liquefaction of bark containing lignin. Three different local isolates (Pleurotus ostreatus POS97/14, Pycnoporus sanguineus and the local isolated fungal strain) were selected out of ten different strains for ligninases production. Maximum production of enzymes was observed in the local isolated fungal strain after ten days in submerged fermentation.The isolated fungal strain produces ligninases mainly for manganese peroxidase (MnP). The enzyme oxidized a variety of the usual MnP substrates, including lignin related phenols. Furthermore, the partial purification for MnP was determined by FPLC and the molecular weight was evaluated by SDS-PAGE.
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