数字农科院2.0

Cell Degeneration And Performance Decline O.f Immobilized Clostridium Acetobutylicum O n Bagasse During Hydrogen And Butanol Production By Repeated Cycle Fermentation

文献类型： 外文期刊

作者： Liu, JY; Zhou, WC; Fan, SQ; Qiu, BY; Wang, YY; Xiao, ZY; Tang, XY; Wang, WG; Jian, SZ; Qin, YM

作者机构：

关键词： Degeneration; Hydrogen; Butanol; Repeated cycle fermentation; Immobilized cell

期刊名称： INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

ISSN： 0360-3199

年卷期： 2019 年 44 卷 48 期

页码：

收录情况： JCR（2021版） ; EI（2021版）

摘要： The cell degeneration and the fermentation performance decline during repeated cycle fermentation with immobilized Clostridium acetobutylicum on bagasse for hydrogen and butanol production was studied. The cell degeneration has been characterized in abnormality of a long-chain morphology through 7 cycles of repeated fermentation. The fermentation performance decline has been indicated by decrease of glucose consumption rate from 0.82 g/L/h to 0.22 g/L/h, reduction of hydrogen production and productivity from 6 L/L to 2.5 L/L and 170 mL/L/h to 40 mL/L/h, as well as the decrease of butanol production and butanol productivity from 6.5 g/L to 1.0 g/L and 0.18 g/L/h to 0.02 g/L/h, respectively. The ratio of hydrogen production and butanol production was in the range of 6-10 and 17-20 during the earlier three and later four cycles, respectively. The carbon flow directed to ethanol was higher during the later period of fermentation. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

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