Simultaneous acetone-butanol-ethanol fermentation, gas stripping, and full-cell-catalyzed esterification for effective production of butyl oleate
| Autor: | Peiyong Qin, Tianwei Tan, Huidong Chen, Changjing Chen, Ganggang Sun, Jingyi Cai, Biqiang Chen, Di Cai, Yueju Zhen |
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| Rok vydání: | 2018 |
| Předmět: |
Stripping (chemistry)
Esterification Ethanol Chemistry 020209 energy Butanols Bioengineering Oleic Acids 02 engineering and technology General Medicine Acetone–butanol–ethanol fermentation Catalysis Acetone chemistry.chemical_compound Scientific method 0202 electrical engineering electronic engineering information engineering Biocatalysis Organic chemistry Ethyl oleate Fermentation Industrial and production engineering Candida sp Biotechnology Candida |
| Zdroj: | Bioprocess and biosystems engineering. 41(9) |
| ISSN: | 1615-7605 |
| Popis: | In this study, aiming to improve the economic feasibility of acetone–butanol–ethanol (ABE) fermentation process, generate valuable products and extend the product chain, esterification catalyzed by Candida sp. 99–125 cells was hybrid with the ABE fermentation-gas-stripping integration system. The gas-stripping condensate that contained concentrated ABE products was directly used for esterification without the participation of toxic organic solvents. Full-cell catalysis temperature and the cell dosage rate on oleate production were evaluated and optimized in the esterification process. Under the optimized conditions (35 °C, 8% of cells), ~ 68% of butyl oleate and ~ 12% of ethyl oleate were obtained after 4 h of esterification. The Candida sp. 99–125 cells were able to be reused for at least four cycles. The novel cascade process showed environmental benefits, which also showed promising in improving the economic feasibility of the conventional ABE fermentation process. |
| Databáze: | OpenAIRE |
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