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可再生生物能源在经济和环境的可持续性发展等方面具有潜在的巨大优势,然而生物能源工业化生产还面临着原料的选择和预处理等难题.对于解决这些难题,预处理技术特别是细胞壁多糖水解酶在非粮燃料乙醇(第1.5代和2代燃料乙醇)的生产过程中发挥了关键作用.本文主要综述了细胞壁多糖水解酶的特征及其在非粮燃料生物质原料转化中的应用,介绍了细胞壁多糖主要成分纤维素、半纤维素和果胶的结构特征,细胞壁多糖水解酶预处理安全、低能耗、成本低、设备简单以及环境友好等优势和多样性特点,及其在非粮燃料乙醇生产中的应用现状,总结了细胞壁化学结构研究、催化过程模型建立、分子水平及计算机科学水平等方面的新技术在该领域的应用.最后对细胞壁多糖水解酶的研究方向提出展望,我国已致力于第1.5代和2代燃料乙醇的研究,并将细胞壁多糖水解酶应用于非粮燃料乙醇工业化的生产.
Renewable bioenergy has great potential advantages in terms of economic and environmental sustainability, however, industrialized bioenergy production is still faced with the challenges of raw material selection and pretreatment, etc. To solve these problems, pretreatment technologies, especially cell wall polysaccharides Hydrolases play a key role in the production of non-food fuel ethanol (1st and 2nd generation fuel ethanol) .In this paper, the characteristics of cell wall polysaccharides hydrolases and their applications in the conversion of non-food fuel biomass feedstocks were reviewed. The structure and characteristics of cellulose, hemicellulose and pectin, which are the main components of cell wall polysaccharides, the advantages and diversity of cell wall polysaccharide hydrolyzate pretreatment safety, low energy consumption, low cost, simple equipment and environmental friendliness were introduced. Fuel ethanol production, summarizes the application of new technologies in cell wall chemical structure research, the establishment of catalytic process model, molecular level and computer science level in the field.Finally, the prospect of research on cell wall polysaccharide hydrolase is put forward, and our country Has been committed to the first and second generation of fuel ethanol research, and cell wall polysaccharide water Enzymes used in the production of non-food industrial fuel ethanol.