METHOD FOR CONTROLLING RATE OF LOWERING MOLECULAR WEIGHT OF POLYSACCHARIDES CONTAINED IN CELLULOSIC BIOMASS, AND METHOD FOR PRODUCING SUGAR, ALCOHOL, OR ORGANIC ACID
    4.
    发明申请
    METHOD FOR CONTROLLING RATE OF LOWERING MOLECULAR WEIGHT OF POLYSACCHARIDES CONTAINED IN CELLULOSIC BIOMASS, AND METHOD FOR PRODUCING SUGAR, ALCOHOL, OR ORGANIC ACID 审中-公开
    用于控制在细胞生物质中含有的多糖分子量下降的方法,以及生产糖,酒精或有机酸的方法

    公开(公告)号:US20110053230A1

    公开(公告)日:2011-03-03

    申请号:US12707083

    申请日:2010-02-17

    IPC分类号: C13K1/02 C12P7/04 C12P7/40

    摘要: An object of the present invention is to provide, with regard to a method for lowering the molecular weight of polysaccharides contained in a cellulosic biomass by mixing the cellulosic biomass with ionic liquid, a method for controlling such rate of lowering of molecular weight. Also, a method for producing sugar, alcohol, or organic acid using the controlling method is provided. The method comprises mixing a cellulosic biomass with ionic liquid under an atmosphere with a partial pressure ratio differing from that of air. Under such an atmosphere with oxygen partial pressure higher than that of air, the rate of lowering molecular weight can be increased, and under an atmosphere with nitrogen partial pressure or carbon dioxide partial pressure higher than that of air or a reduced-pressure atmosphere, the rate of lowering molecular weight can be decreased.

    摘要翻译: 本发明的目的是提供一种通过将纤维素生物质与离子液体混合来降低纤维素生物质中所含多糖的分子量的方法,用于控制分子量降低速率的方法。 另外,提供了使用该控制方法制造糖,醇或有机酸的方法。 该方法包括将纤维素生物质与离子液体在气压不同于空气的气压下混合。 在氧分压比空气高的气氛中,可以提高降低分子量的速度,在氮分压或二氧化碳分压比空气或减压气氛高的气氛中, 降低分子量的速度可以降低。