Consolidated bioprocessing of microalgal biomass to carboxylates by a mixed culture of cow rumen bacteria using anaerobic sequencing batch reactor (ASBR)
文献类型： 外文期刊
作者： Zhao, Baisuo 1 ; Liu, Jie 3 ; Frear, Craig 2 ; Holtzapple, Mark 4 ; Chen, Shulin 2 ;
作者机构： 1.Chinese Acad Agr Sci, Grad Sch, Beijing 100081, Peoples R China
2.Washington State Univ, Biol Syst Engn, Pullman, WA 99164 USA
3.Heilongjiang Acad Agr Sci, Rural Energy Inst, Harbin 150086, Peoples R China
4.Texas A&M Univ, Dept Chem Engn, College Stn, TX 77843 USA
关键词： Consolidated bioprocessing;Algal biomass;Carboxylates;Cow rumen bacteria;ASBR reactor
期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）
ISSN：
年卷期：
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收录情况： SCI
摘要： This study employed mixed-culture consolidated bioprocessing (CBP) to digest microalgal biomass in an anaerobic sequencing batch reactor (ASBR). The primary objectives are to evaluate the impact of hydraulic residence time (HRT) on the productivity of carboxylic acids and to characterize the bacterial community. HRT affects the production rate and patterns of carboxylic acids. For the 5-L laboratory-scale fermentation, a 12-day HRT was selected because it offered the highest productivity of carboxylic acids and it synthesized longer chains. The variability of the bacterial community increased with longer HRT (R-2 = 0.85). In the 5-L laboratory-scale fermentor, the most common phyla were Firmicutes (58.3%), Bacteroidetes (27.4%), and Proteobacteria (11.9%). The dominant bacterial classes were Clostridia (29.8%), Bacteroidia (27.4%), Tissierella (26.2%), and Betaproteobacteria (8.9%). (C) 2016 Elsevier Ltd. All rights reserved.
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