Biodegradation of Crystalline Chitin:A Review of Recent Advancement,Challenges,and Future Study Directions

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外文摘要：Chitin is the second most abundant renewable polysaccharide on Earth.The degradation of chitin into soluble and bioac-tive N-acetyl chitooligosaccharides(NCOSs)and N-acetyl-D-glucosamine(GlcNAc)has emerged as a pivotal step in the efficient and sustainable utilization of chitin resources.However,because of its dense structure,high crystallinity,and poor solubility,chitin typi-cally needs pretreatment via chemical,physical,and other methods before enzymatic conversion to enhance the accessibility between substrates and enzyme molecules.Consequently,there has been considerable interest in exploring the direct biological degradation of crystalline chitin as a cost-effective and environment-friendly technology.This review endeavors to present several biological methods for the direct degradation of chitin.We primarily focused on the importance of chitinase containing chitin-binding domain(CBD).Additionally,various modification strategies for increasing the degradation efficiency of crystalline chitin were introduced.Subsequently,the review systematically elucidated critical components of multi-enzyme catalytic systems,highlighting their potential for chitin de-gradation.Furthermore,the application of microorganisms in the degradation of crystalline chitin was also discussed.The insights in this review contribute to the explorations and investigations of enzymatic and microbial approaches for the direct degradation of crystal-line chitin,thereby fostering advancements in biomass conversion.

外文关键词：

crystalline chitinchitinasebiological degradationengineeringmicroorganisms

作者：

SONG Jianlin、SU Haipeng、SUN Jianan、MAO Xiangzhao

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作者单位：

Sanya Institute of Oceanography,Ocean University of China,Sanya 572000,China

State Key Laboratory of Marine Food Processing and Safety Control,College of Food Science and Engineering,Ocean University of China,Qingdao 266404,China

Qingdao Key Laboratory of Food Biotechnology,Qingdao 266404,China

Key Laboratory of Biological Processing of Aquatic Products,China National Light Industry,Qingdao 266404,China

Laboratory for Marine Drugs and Bioproducts of Laoshan Laboratory,Qingdao 266237,China

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基金：

National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaKey R&D Program of Shandong ProvinceEarmarked Fund for CARSQingdao Shinan District Science and Technology Plan Project

项目编号：

2023YFD2401504U21A20271322250392022TZXD001CARS-482022-3-010-SW

出版年：

2024

DOI：

10.1007/s11802-024-5983-4

中国海洋大学学报(自然科学英文版)

中国海洋大学

中国海洋大学学报(自然科学英文版)

CSTPCD

影响因子：0.268

ISSN：1672-5182

年,卷(期)：2024.23(5)