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    • 85. 发明申请
    • BATCH FEED PROCESS FOR FERMENTING SUGARS
    • 用于发酵糖的批料进料
    • US20150315615A1
    • 2015-11-05
    • US14650976
    • 2013-12-10
    • CARGILL, INCORPORATED
    • Ravi GOKARNMattew PARSONSDerran WALCKERJoseph SPENCER
    • C12P7/56
    • C12P7/56C12P7/40
    • A batch fermentation process ferments a starch hydrolysate containing 80-98 weight percent of glucose based on total carbohydrate and 0.3-5% weight percent of isomaltose based on total carbohydrate to a fermentation product. A fermentation broth is formed containing a first portion of a total amount of the starch hydrolysate so that the fermentation broth has an initial glucose concentration of at least about 50 g/L. Fermentation is carried out until the fermentation broth contains 30 g/L or less of glucose. An effective amount of at least one active enzyme that converts isomaltose into glucose is adding to the fermentation broth. Then the remaining portion of the total amount of starch hydrolysate is fed into the fermentation broth to maintain a glucose concentration of from about 5 to about 15 g/L in the fermentation broth throughout the feeding step. The final fermentation broth containing the fermentation product is then produced.
    • 分批发酵方法将基于总碳水化合物含有80-98重量%葡萄糖的淀粉水解物和基于总碳水化合物的0.3-5重量%的异麦芽糖发酵成发酵产物。 形成含有总量为淀粉水解产物的第一部分的发酵液,使得发酵液的初始葡萄糖浓度为至少约50g / L。 发酵直到发酵液含有30g / L以下的葡萄糖。 将有效量的至少一种将异麦芽糖转化成葡萄糖的活性酶是向发酵液中加入。 然后将淀粉水解产物的总量的剩余部分进料到发酵液中,以在整个进料步骤中在发酵液中维持约5至约15g / L的葡萄糖浓度。 然后生产含有发酵产物的最终发酵液。