Abstract: Cellulases mainly include three categories: exocellulase, endocellulase and β-glucosidase. Among them, exocellulase is widely used in various industrial production because of its high activity, good tolerance and wide sources. Based on this, the classification, sources and biochemical characteristics of exocellulase were mainly expounded, and the new technologies related to the screening of exocellulase and the analysis of its hydrolysate were introduced. The application progress of exocellulases in paper industry, food processing industry, pharmaceutical industry, textile industry, energy regeneration and other industrial fields was summarized, in order to promote the further study and industrial application of exocellulases.

Key words: exocellulases, biochemical characteristics, industrial application

摘要： 纤维素酶主要包括三大类：外切纤维素酶、内切纤维素酶和β-葡萄糖苷酶。其中，外切纤维素酶因具有活性高、耐受性好、来源广等特点而被广泛应用于各种工业生产中。基于此，主要阐述了外切纤维素酶的分类、来源以及生化特性，介绍了外切纤维素酶的筛选及其水解产物分析的相关新技术，并综述了其在造纸业、食品加工业、制药业、纺织业、能源再生等工业领域中的应用进展，以期推动外切纤维素酶的深入研究及工业化应用。

关键词: 外切纤维素酶, 生化特性, 工业应用