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One step open fermentation for lactic acid production from inedible starchy biomass by thermophilic Bacillus coagulans IPE22
Wang, Yujue1,2; Cao, Weifeng1; Luo, Jianquan1,2; Qi, Benkun1; Wan, Yinhua1,2
2019
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume272Pages:398-406
AbstractThe aim of this study was to establish a simplified operational process for lactic acid (LA) production by Bacillus coagulans IPE22 from inedible starchy biomass with open fermentation method. First, 29.47 mU/mg specific amylase activity was detected in direct batch fermentation from soluble starch, but the activity of the produced amylase was too low for effective production of LA. Then seven batches from 72 g/L soluble starch were conducted without sterilization. It was found that one step simultaneous liquefaction, saccharification and fermentation (SLSF) with the addition of mesothermal alpha-amylase and glucoamylase was the optimal mode with LA concentration, yield and productivity of 68.72 g/L, 0.99 g/g and 1.72 g/L h respectively. Finally, inedible starchy biomass, cassava and sorghum flours, were proved to be alternatives to refined soluble starch. For the first time, one step open SLSF of inedible starchy biomass was reported for LA production by B. coagulans.
KeywordLactic acid Bacillus coagulans Inedible starchy biomass L-lactate dehydrogenase Simultaneous liquefaction saccharification and fermentation
DOI10.1016/j.biortech.2018.10.043
Language英语
WOS KeywordSTRAIN
Funding ProjectBeijing Natural Science Foundation, China[5182025] ; National Natural Science Foundation of China, China[21406240] ; National High Technology Research and Development Program of China, China[2015AA021002] ; National High Technology Research and Development Program of China, China[2014AA021005]
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
Funding OrganizationBeijing Natural Science Foundation, China ; National Natural Science Foundation of China, China ; National High Technology Research and Development Program of China, China
WOS IDWOS:000451625700050
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/27545
Collection中国科学院过程工程研究所
Corresponding AuthorWan, Yinhua
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Yujue,Cao, Weifeng,Luo, Jianquan,et al. One step open fermentation for lactic acid production from inedible starchy biomass by thermophilic Bacillus coagulans IPE22[J]. BIORESOURCE TECHNOLOGY,2019,272:398-406.
APA Wang, Yujue,Cao, Weifeng,Luo, Jianquan,Qi, Benkun,&Wan, Yinhua.(2019).One step open fermentation for lactic acid production from inedible starchy biomass by thermophilic Bacillus coagulans IPE22.BIORESOURCE TECHNOLOGY,272,398-406.
MLA Wang, Yujue,et al."One step open fermentation for lactic acid production from inedible starchy biomass by thermophilic Bacillus coagulans IPE22".BIORESOURCE TECHNOLOGY 272(2019):398-406.
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