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首页> 外文期刊>RSC Advances >Solid simultaneous saccharification and fermentation of rice straw for bioethanol production using nitrogen gas stripping
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Solid simultaneous saccharification and fermentation of rice straw for bioethanol production using nitrogen gas stripping

机译：稻草的固体同时糖化和发酵用于氮气吹扫生产生物乙醇

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Solid simultaneous saccharification and fermentation (SSSF) of rice straw for ethanol production using N-2 stripping was developed. The effects of N-2 flow rate, yeast inoculation amount, and substrate moisture content on SSSF were investigated. The highest total output of ethanol was 4.78 g, and the highest ethanol yield obtained was 56.3% using an N-2 flow rate of 30 mL min(-1), a yeast inoculation volume of 20 mL, and a moisture content of 4.6 mL (water) per g (substrate). The low residuals of ethanol and glucose in the substrate demonstrate that the N-2 carrier gas effectively stripped the produced ethanol out of the packed bed, alleviating the inhibitions caused by evolved glucose and ethanol remaining in the bioreactor. With an increase in N-2 flow rate or substrate moisture content, the total output of ethanol and ethanol yield initially increased and then decreased. However, with the increase in yeast inoculation volume, both indexes first rose and then remained relatively constant.
机译：开发了使用N-2汽提的稻草固体同时糖化和发酵（SSSF）生产乙醇。研究了N-2流量，酵母接种量和底物水分含量对SSSF的影响。使用30 mL min（-1）的N-2流速，20 mL酵母接种量和4.6 mL水分，获得的最高乙醇总产量为4.78 g，获得的最高乙醇产率为56.3％。 （水）每克（基材）。底物中乙醇和葡萄糖的低残留量表明，N-2载气有效地将产生的乙醇从填充床中汽提出来，从而减轻了由于生物反应器中残留的葡萄糖和乙醇而引起的抑制作用。随着N-2流速或底物含湿量的增加，乙醇的总产量和乙醇产量先增加后降低。但是，随着酵母接种量的增加，两个指标先上升然后保持相对恒定。

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