METHOD FOR CONVERTING LIGNOCELLULOSIC BIOMASS
    1.
    发明申请
    METHOD FOR CONVERTING LIGNOCELLULOSIC BIOMASS 审中-公开
    转化生物体的方法

    公开(公告)号:US20120064574A1

    公开(公告)日:2012-03-15

    申请号:US13321038

    申请日:2010-05-12

    摘要: The present invention aims to develop a pretreatment technology for performing efficient saccharification without losing carbohydrates (in particular, free carbohydrates, starch, xylan, or the like) due to solid-liquid separation and washing steps, as a pretreatment for enzymatic saccharification of a lignocellulosic biomass feedstock (including a lignocellulosic biomass feedstock containing readily degradable carbohydrates). Provided are: a production method for a slurry to be used as a substrate for an enzymatic saccharification reaction, comprising: pulverizing an aerial part of a plant as a lignocellulosic biomass feedstock; preparing a slurry containing the biomass feedstock, calcium hydroxide, and water; subjecting the slurry to an alkali treatment; and neutralizing the slurry by introduction of and/or pressurization with carbon dioxide to decrease a pH to 5 to 7; an enzymatic saccharification method, comprising using, as a substrate, a slurry obtained by the production method for a slurry; and a production method for ethanol, comprising using, as a substrate, a saccharification product obtained by the enzymatic saccharification method.

    摘要翻译: 本发明旨在开发一种用于进行有效糖化而不会由于固液分离和洗涤步骤而导致的碳水化合物(特别是游离碳水化合物,淀粉,木聚糖等)的预处理技术,作为用于木质纤维素酶促糖化的预处理 生物质原料(包括含有易降解碳水化合物的木质纤维素生物质原料)。 提供:用作用于酶促糖化反应的底物的浆料的制备方法,包括:将植物的地上部分粉碎为木质纤维素生物质原料; 制备含有生物质原料,氢氧化钙和水的浆料; 对浆料进行碱处理; 并通过引入和/或加压二氧化碳来中和浆液以将pH降至5至7; 一种酶促糖化方法,包括使用通过浆料的制备方法获得的浆料作为基材; 以及乙醇的制造方法,其特征在于,使用通过所述酶糖化法得到的糖化物作为底物。