Reassessment of the role of CaCO₃ in n-butanol production from pretreated lignocellulosic biomass by Clostridium acetobutylicum.

ABSTRACT: In this study, the role of CaCO₃ in n-butanol production was further investigated using corn straw hydrolysate (CSH) media by Clostridium acetobutylicum CICC 8016. CaCO₃ addition stimulated sugars utilization and butanol production. Further study showed that calcium salts addition to CSH media led to the increase in Ca²⁺ concentration both intracellularly and extracellularly. Interestingly, without calcium salts addition, intracellular Ca²⁺ concentration in the synthetic P2 medium was much higher than that in the CSH medium despite the lower extracellular Ca²⁺ concentrations in the P2 medium. These results indicated that without additional calcium salts, Ca²⁺ uptake by C. acetobutylicum CICC 8016 in the CSH medium may be inh

SUBMITTER: Su Z 

PROVIDER: S-EPMC7578090 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature