Concurrent saccharification and fermentation of fibrous biomass
    21.
    发明授权
    Concurrent saccharification and fermentation of fibrous biomass 有权
    纤维生物质的同时糖化和发酵

    公开(公告)号:US08058041B2

    公开(公告)日:2011-11-15

    申请号:US12167880

    申请日:2008-07-03

    CPC classification number: C12P7/10 C12M21/12 C12M45/04 C12M45/06 Y02E50/16

    Abstract: A process for simultaneous saccharification and fermentation of a cellulosic solids fraction extracted from a lignocellulosic feedstock. The viscosity of the cellulosic solids fraction is reduced by intermixing with a liquid carbohydrate stream. A suitable liquid carbohydrate stream is a de-lignified liquids fraction that was previously separated from the solids fraction during processing of the lignocellulosic feedstock. Alternatively, the viscosity of the solids fraction may be reduced by commingling with a liquid carbohydrate stream comprising one or more monosaccharides. The reduced-viscosity cellulosic solids fraction is then commingled with a fermentative microbial inoculant and a cellulosic biomass-degrading enzyme composition. The commingled mixture is maintained in a pressurized reaction vessel under elevated temperatures to enable simultaneous enzymatic hydrolysis of the cellulosic solids to monosaccharides and fermentation of the monosaccharides to produce an ethanolic beer. The ethanolic beer is distillable for recovery of fuel-grade ethanol and a stillage that may be further processed.

    Abstract translation: 用于从木质纤维素原料中提取的纤维素固体馏分的同时糖化和发酵的方法。 通过与液体碳水化合物流混合来降低纤维素固体分数的粘度。 合适的液体碳水化合物流是在木质纤维素原料的加工期间预先从固体部分分离的去木质化液体馏分。 或者,可以通过与包含一种或多种单糖的液体碳水化合物流混合来降低固体分数的粘度。 然后将降低粘度的纤维素固体部分与发酵微生物接种物和纤维素生物质降解酶组合物混合。 将混合的混合物在升高的温度下保持在加压反应容器中,以使纤维素固体同时酶水解成单糖并发酵单糖以产生乙醇啤酒。 乙醇啤酒可蒸馏以回收燃料级乙醇和可进一步加工的酒糟。

    Compositions and Methods for Improving Properties of Cellulosic Textile Materials with Xyloglucan Endotransglycosylase
    26.
    发明申请
    Compositions and Methods for Improving Properties of Cellulosic Textile Materials with Xyloglucan Endotransglycosylase 审中-公开
    使用葡聚糖内切葡聚糖提高纤维素纺织材料性能的组合物和方法

    公开(公告)号:US20160333292A1

    公开(公告)日:2016-11-17

    申请号:US15112465

    申请日:2015-03-05

    Abstract: The present invention relates to methods for modifying a cellulosic textile material comprising treating the cellulosic textile material with a composition comprising a xyloglucan endotransglycosylase and (a) a polymeric xyloglucan and a functionalized xyloglucan oligomer comprising a chemical group; (b) a polymeric xyloglucan functionalized with a chemical group and a functionalized xyloglucan oligomer comprising a chemical group; (c) a polymeric xyloglucan functionalized with a chemical group and a xyloglucan oligomer; (d) a polymeric xyloglucan functionalized with a chemical group; or (e) a functionalized xyloglucan oligomer comprising a chemical group, under conditions leading to a modified cellulosic textile material where the modified cellulosic textile material possesses a textile improvement compared to the unmodified cellulosic textile material. The present invention also relates to modified cellulosic textile materials with a textile improvement.

    Abstract translation: 本发明涉及用于改性纤维素纺织材料的方法,包括用包含木葡聚糖内转葡糖基酶的组合物和(a)聚合物木葡聚糖和包含化学基团的官能化木葡聚糖低聚物处理纤维素纺织材料; (b)由化学基团官能化的聚合物木葡聚糖和包含化学基团的官能化木葡聚糖低聚物; (c)用化学基团和木葡聚糖低聚物官能化的聚合物木葡聚糖; (d)用化学基团官能化的聚合物木葡聚糖; 或(e)在导致改性纤维素纺织材料的条件下,包含化学基团的官能化的木葡聚糖低聚物,其中与未改性的纤维素纺织材料相比,改性纤维素纺织材料具有纺织品改进。 本发明还涉及具有纺织品改进的改性纤维素纺织材料。

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