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首页> 外文期刊>Bioprocess and Biosystems Engineering >Evaluation of ethanol fermentation efficiency of sweet sorghum syrups produced by integrated dual-membrane system
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Evaluation of ethanol fermentation efficiency of sweet sorghum syrups produced by integrated dual-membrane system

机译：综合双膜系统生产的甜高粱糖浆乙醇发酵效率的评价

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摘要

1G ethanol from sweet sorghum can be a better alternative to various other sources used for its production. The commercial feasibility is dictated by the high sugar containing varieties, their transport to ethanol plants, storage and availability of robust yeast strains for the fermentation. Eight sweet sorghum cultivars namely CSV19SS, CSV24SS, CSV27, CSV32F, PV, SSV84, RVICSH, SPV1871, SSV74 were tested for their sugar content and varieties-SSV84 and CSV24SS were containing sugar content of 170-190 g/L. Specifically designed polyethersulfone-based ultrafiltration (UF) membrane and hydrophilised polyamide (HPA-150) also termed as nanofiltration (NF) membrane were synthesized by interfacial polymerization technique and were used for the concentration of sweet sorghum juice. The syrup retained on an average 90% sugars at 4 degrees C, 100% at - 20 degrees C for 6 months and 10% at room temperature for 36 h. The overall product yield of ethanol ranged between 0.48 and 0.49 g/g in batch fermentation in a 14 L reactor.
机译：来自甜高粱的1G乙醇可以是各种用于其生产的其他来源的更好的替代品。商业可行性由含高糖的品种决定，它们对乙醇植物的运输，鲁棒酵母菌株的发酵储存和可用性。八个甜高粱品种即CSV19SS，CSV24S，CSV27，CSV32F，PV，SSV84，RVICSH，SPV1871，SSV74对其糖含量和品种-SSv84和CSV24SS含有170-190g / L的糖含量。通过界面聚合技术合成了特别设计的基于聚醚砜的超滤（UF）膜和亲水化的聚酰胺（HPA-150），其称为纳滤膜（NF）膜被合成，并用于甜高粱汁的浓度。糖浆在4℃下在4℃下保持平均90％的糖，在-20℃下为100％，在室温下为10％，36小时。在14L反应器中分批发酵的乙醇的总体产量在0.48和0.49g / g之间。

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