Cited by 30Microbial Metabolic Engineering and BioproductionBiofuel production and bioconversionAnaerobic Digestion and Biogas Production

High acetone-butanol-ethanol production in pH-stat co-feeding of acetate and glucose

Gao, Ming, Tashiro, Yukihiro, Wang, Qunhui, Sakai, Kenji, Sonomoto, Kenji·2016·Journal of Bioscience and Bioengineering

Abstract

We previously reported the metabolic analysis of butanol and acetone production from exogenous acetate by (13)C tracer experiments (Gao et al., RSC Adv., 5, 8486-8495, 2015). To clarify the influence of acetate on acetone-butanol-ethanol (ABE) production, we first performed an enzyme assay in Clostridium saccharoperbutylacetonicum N1-4. Acetate addition was found to drastically increase the activities of key enzymes involved in the acetate uptake (phosphate acetyltransferase and CoA transferase), acetone formation (acetoacetate decarboxylase), and butanol formation (butanol dehydrogenase) pathways. Subsequently, supplementation of acetate during acidogenesis and early solventogenesis resulted in a significant increase in ABE production. To establish an efficient ABE production system using acetate as a co-substrate, several shot strategies were investigated in batch culture. Batch cultures with two substrate shots without pH control produced 14.20 g/L butanol and 23.27 g/L ABE with a maximum specific butanol production rate of 0.26 g/(g h). Furthermore, pH-controlled (at pH 5.5) batch cultures with two substrate shots resulted in not only improved acetate consumption but also a further increase in ABE production. Finally, we obtained 15.13 g/L butanol and 24.37 g/L ABE at the high specific butanol production rate of 0.34 g/(g h) using pH-stat co-feeding method. Thus, in this study, we established a high ABE production system using glucose and acetate as co-substrates in a pH-stat co-feeding system with C. saccharoperbutylacetonicum N1-4.

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Crossref · 10.1016/j.jbiosc.2016.01.013

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  • Cancer cells can generate acetyl-CoA from cytosolic acetate.

    “Cancer cells are also able to generate acetyl-CoA from cytosolic acetate (Comerford et al., 2014; Gao et al., 2016; Kamphorst et al., 2014; Mashimo et al., 2014).”

    From Targeting Metabolism for Cancer Therapy (2017) · cites this paper as Gao et al., 2016

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Authors
Gao, M., Tashiro, Y., Wang, Q., Sakai, K., & Sonomoto, K.
Affiliations
  • Kyushu University (JP)
  • University of Science and Technology Beijing (CN)
Corresponding author
Sonomoto, Kenji
Venue
Journal of Bioscience and Bioengineering
Publisher
Elsevier BV
Published
2016-08
Volume
122
Issue
2
Pages
176-182
ISSN
  • 1347-4421 (ISSN-L)
  • 1389-1723
OpenAlex
W2283043499
Cited by
30
References
32
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 2 · 2022: 4 · 2021: 4 · 2020: 4 · 2019: 5 · 2018: 1 · 2017: 3 · 2016: 3
FWCI
2.08
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Bioscience and Bioengineering (publishedVersion)
  • PubMed (publishedVersion)
Funders
China Scholarship Council (2010646052)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
  • Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
  • Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
Keywords
acetone-butanol-ethanol production, Clostridium saccharoperbutylacetonicum, glucose, substrate supplementation, butanol production, acidogenesis, solventogenesis, enzyme activity, phosphate acetyltransferase, CoA transferase, acetoacetate decarboxylase
MeSH terms
Acetates, Acetone, Alcohol Oxidoreductases, Ethanol, Carboxy-Lyases, Clostridium, Glucose, Hydrogen-Ion Concentration, Phosphate Acetyltransferase, Coenzyme A-Transferases, Bioreactors, 1-Butanol, Batch Cell Culture Techniques

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