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On-farm solid state simultaneous saccharification and fermentation of whole crop forage rice in wrapped round bale for ethanol production

机译:整捆草捆中全农用饲料稻米的固态固态糖化和发酵用于乙醇生产

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摘要

BackgroundIn an attempt to reduce environmental loading during ethanol production from cellulosic plant biomass, we have previously proposed an on-site solid state fermentation (SSF) method for producing ethanol from whole crops, which at the same time provides cattle feed without producing wastes. During the ensiling of freshly harvested plant biomass with cellulase and glucoamylase, the added yeast and lactic acid bacteria induced simultaneous saccharification and production of ethanol and lactic acid in hermetically sealed containers on-farm. In a previous study, laboratory-scale SSF (using 250 g of fresh rice crop biomass) yielded 16.9 weight % ethanol in dry matter (DM) after 20 days of incubation. In this study, the fermentation volume was scaled up to a normal-sized round bale and the fermentation process (ethanol concentrations of the products) was monitored. The ethanol produced was recovered and the recovery efficiency was evaluated.
机译:背景技术为了减少纤维素植物生物质生产乙醇过程中的环境负荷,我们先前提出了一种现场固态发酵(SSF)方法,用于从整个农作物生产乙醇,该方法同时提供牛饲料而不产生废物。在用纤维素酶和葡糖淀粉酶包裹新鲜收获的植物生物量的过程中,添加的酵母菌和乳酸菌在农场的密闭容器中同时糖化并产生乙醇和乳酸。在先前的研究中,实验室规模的SSF(使用250克新鲜的水稻作物生物质)在孵育20天后产生的乙醇含量为干物质(DM)中的16.9重量%。在这项研究中,发酵量按比例增加到正常大小的圆包,并监测发酵过程(产品的乙醇浓度)。回收产生的乙醇并评估回收效率。

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