文献类型：期刊文献

中文题名：Immobilization of trophic anaerobic acetogen for semi-continuous syngas fermentation

作者：Lijuan Zhang[1];Peng Hu[2];Jiang Pan[1];Huilei Yu[1];Jianhe Xu[1]

机构：[1]State Key Laboratory of Bioreactor Engineering,Shanghai Collaborative Innovation Centre for Biomanufacturing,East China University of Science and Technology,Shanghai 200237,China;[2]Shanghai GTL Biotech Co.Ltd.,Shanghai 200438,China

年份：2021

卷号：34

期号：1

起止页码：311

中文期刊名：Chinese Journal of Chemical Engineering

外文期刊名：中国化学工程学报（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2021_2022】；

基金：supported by the National Key Research and Development Program of China (2019YFA0905000);the National Natural Science Foundation of China (21536004, 21922804, 21776085, and 21871085);the Fundamental Research Funds for the Central Universities (22221818014)。

语种：英文

中文关键词：Anaerobic;Syngas;Acetic acid;Immobilization;Bioreactors;Semi-continuous fermentation

摘要：The massive consumption of fossil energy force s people to find new source s of energy.Syngas fermentation has become a hot research field as its high potential in renewable energy production and sustainable development.In this study,trophic anaerobic acetogen Morella thermoacetica was successfully immobilized by calcium alginate embedding method.The ability of the immobilized cells on production of acetic acid through syngas fermentation was compared in both airlift and bubble column bioreactors.The bubble column bioreactor was selected as the better type of bioreactor.The production of acetic acid reached 32.3 g·L^(-1) in bubble column bioreactor with a space-time yield of 2.13 g·L^(-1)·d^(-1).The immobilized acetogen could be efficiently reused without significant lag period,even if exposed to air for a short time.A semi-continuous syngas fermentation was performed using immobilized cells,with an average space-time acetic acid yield of 3.20 g·L^(-1)·d^(-1).After 30 days of fermentation,no significant decrea se of the acetic acid production rate was observed.