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Study of the influence of dilute acid pre-treatment conditions on glucose recovery from Moringa oleifera Lam for fuel-ethanol production

机译:稀酸预处理条件对辣木可回收葡萄糖用于燃料乙醇生产的影响研究

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摘要

The influence of temperature (175 to 195 degrees C), residence time (5 to 15min), and sulfuric acid concentration in high (2 to 4% w/w) and low (0.5 to 1.5% w/w) levels in dilute acid pretreatment of Moringa oleifera Lam is studied. Glucose recoveries in the liquid fraction and in the hydrolyzed insoluble fraction as well as the presence of inhibitors in the liquid fraction are determined. Best experimental results are achieved at 185 degrees C, 2% w/w acid concentration, and 5min reaction time obtaining a glucose recovery of 83.68%. An increment in 48.81% in glucose yield compared with the one of not pretreated Moringa is obtained. 0.13g ethanol/g Moringa from fermentation of pre-hydrolysate and hydrolysate obtained at the optimal pre-treatment conditions are obtained.
机译:温度(175至195摄氏度),停留时间(5至15分钟)以及稀酸中高浓度(2-4%w / w)和低浓度(0.5-1.5%w / w)中硫酸浓度的影响研究了辣木的预处理。测定液体部分和水解的不溶部分中的葡萄糖回收率,以及液体部分中抑制剂的存在。在185摄氏度,2%w / w的酸浓度和5分钟的反应时间下可获得最佳的实验结果,葡萄糖回收率为83.68%。与未经预处理的辣木之一相比,获得了48.81%的葡萄糖产率增加。从预水解产物的发酵和在最佳预处理条件下获得的水解产物中获得0.13g乙醇/ g辣木。

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