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首页> 外文期刊>Journal of Applied Polymer Science >Enzymatic-assisted extraction and modification of lignocellulosic plant polysaccharides for packaging applications
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Enzymatic-assisted extraction and modification of lignocellulosic plant polysaccharides for packaging applications

机译：酶促提取和改性木质纤维素植物多糖，用于包装应用

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Plant polysaccharides comprise the main renewable resource available in the biosphere for biomaterial production. However, the recalcitrant and heterogeneous structure of lignocellulosic biomass hinders the effective fractionation and exploitation of the polysaccharide components for the design of carbohydrate-based materials. Carbohydrate-active enzymes constitute a selective and versatile biotechnological tool that can assist during the biomass pretreatment steps to extract and fractionate the polysaccharide macromolecular components. Moreover, this enzymatic toolbox can be as well exploited for the tailored modification of the molecular structure of relatively pure polysaccharide components to achieve customized macroscopic properties. This review critically discusses the potential and challenges of the use of plant lignocellulosic polysaccharides and enzymatic modifications to design and prepare suitable materials for packaging applications in terms of their structure-property relations. Structural factors such as the molar mass and crystallinity of the polysaccharide fractions and functional factors such as water sensitivity and processability of the derived films are critical for the material performance. (C) 2015 Wiley Periodicals, Inc.
机译：植物多糖构成了生物圈中可用于生物材料生产的主要可再生资源。然而，木质纤维素生物质的顽固性和异质性结构阻碍了多糖组分的有效分离和开发，以用于基于碳水化合物的材料的设计。碳水化合物活性酶构成一种选择性的多功能生物技术工具，可在生物质预处理步骤中协助提取和分离多糖大分子成分。此外，也可以利用该酶工具箱对相对纯的多糖组分的分子结构进行定制修饰，以实现定制的宏观性能。这篇评论从结构-性质关系的角度，严格地讨论了使用植物木质纤维素多糖和酶促修饰方法设计和制备适合包装应用的材料的潜力和挑战。结构因素（例如多糖级分的摩尔质量和结晶度）和功能因素（例如衍生膜的水敏感性和可加工性）对于材料性能至关重要。 （C）2015年Wiley Periodicals，Inc.

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