纤维素降解菌株性能优化及其资源化利用  

Optimization of cellulose-degrading bacterial strain performance and its resource utilization

作　　者：马莲菊 李龙 羿晓庆 刘力嘉 伊恩静 张静 东雨竹 MA Lianju;LI Long;YI Xiaoqing;LIU Lijia;YI Enjing;ZHANG Jing;DONG Yuzhu(College of Life Science,Shenyang Normal University,Shenyang 110034,China)

机构地区：[1]沈阳师范大学生命科学学院,沈阳110034

出　　处：《沈阳师范大学学报(自然科学版)》2024年第6期514-520,共7页Journal of Shenyang Normal University:Natural Science Edition

基　　金：辽宁省教育厅本科高校基本科研业务费专项资金资助项目(LJ202410166008)。

摘　　要：纤维素是自然界中储量最丰富的可再生资源之一,但由于其分子结构复杂,通常难以被自然降解,这导致纤维素的综合利用效率低下,造成资源浪费。为应对日益严峻的能源和环境问题,相比于传统的物理和化学降解方法,利用微生物技术筛选出具有高酶活性和强降解能力的纤维素降解菌进行生物降解,成为实现纤维素资源化的重要途径。从纤维素的结构、降解方法及机制、纤维素降解菌的种类及菌株降解性能的提升等方面,概述了纤维素降解菌的研究进展。针对目前降解菌株广泛应用中的技术瓶颈,提出了解决方案和研究重点,为纤维素降解菌的探索与应用提供了新的方向和理论依据。Cellulose is one of the most abundant renewable resources in nature,but due to its complex molecular structure,it is usually difficult to be naturally degraded,which leads to the inefficiency of comprehensive utilization of cellulose,resulting in the waste of resources.In order to cope with the increasingly serious energy and environmental problems,compared with the traditional physical and chemical degradation methods,the use of microbial technolorgy to screen cellulose-degrading bacteria with high enzyme activity and strong degradation ability for biodegradation has become an important way to realize cellulose resourcefulness.In this paper,the research progress of cellulose degrading bacteria is outlined from the structure of cellulose,degradation methods and mechanisms,species of cellulose degrading bacteria,and the enhancement of the degradation performance of the strains.Solutions and research priorities are proposed for the technical bottlenecks in the current widespread application of degrading bacteria strains,providing a new direction and theoretical basis for the exploration and application of cellulose degrading bacteria.

关 键 词：纤维素降解菌 纤维素分子 降解方法 酶活力 复合菌系 

分 类 号：O343.1[理学—固体力学] O341[理学—力学]