糠醛渣直接同步糖化发酵生产乙醇过程比较研究

doi:10.3969/j.issn.1673-5854.2015.06.002

Abstract

Abstract: Furfural residues and washed furfural residues were fermented to produce ethanol by simultaneous saccharification and fermentation(SSF). The combination factors(substrate mass fraction, dosage of cellulase, yeast and Sapindus saponin) which affected the concentrations of ethanol and byproduct were optimized by the experiment. The yield of ethanol could reach 93.1% of the theoretical yield during SSF under the conditions of 10% substrate concentration of unwashed furfural residue, 12% cellulase, 0.5g/L Sapindus saponin and 7g/L inoculum solution. The glucose of furfural residues(5.5%) were partly converted to ethanol compared with washed furfural residues. The byproducts(lactic acid, glycerol and acetic acid) concentrations of washed furfural residue in SSF were lower than those of unwashed furfural residue. And the addition of Sapindus saponin could inhibit the produce of byproducts.

Key words: furfural residue, simultaneous saccharification and fermentation, ethanol, Sapindus saponin, byproduct

CLC Number:

TQ35

JI Li, WANG Yong-miao, TANG Yong, LIU Zhi-ping, JIANG Jian-xin. Comparative Study on Conversion Process of Furfural Residue for Ethanol Production by Simultaneous Saccharification and Fermentation[J]. bce, 2015, 49(6): 6-10.

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Comparative Study on Conversion Process of Furfural Residue for Ethanol Production by Simultaneous Saccharification and Fermentation

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