期刊
BIORESOURCE TECHNOLOGY
卷 281, 期 -, 页码 440-448出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2019.02.132
关键词
Dissolving pulp; Cellulase; Xylanase; Hemicellulose removal; Reactivity; Combined treatment
资金
- Canada Research Chairs program
- National Natural Science Foundation of China (NSFC) [31670588]
Recently, the worldwide production of dissolving pulp has grown rapidly. Enzymatic technologies play an important role in producing high-quality dissolving pulp, due to their green, mild conditions, high specificity and efficiency. In this review, the relevant publications regarding enzyme applications for dissolving pulp are summarized. Cellulase and xylanase are two major enzymes used for this purpose. Cellulase can improve the quality of dissolving pulp, such as improving the reactivity/accessibility, controlling the intrinsic viscosity and adjusting the molecular weight. Xylanase is mainly used to increase the purity of the dissolving pulp and improve the pulp brightness. Furthermore, in order to increase the enzymatic treatment efficiency, the enzymatic technology can be combined with other techniques, including mechanical refining, fiber fractionations, alkali treatment and use of additives. The advantages, disadvantages and practical implications are analyzed. Also, the potential of other enzymes (such as laccase, mannanase) are discussed.
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