Abstract
Sol–gel methods were used to facilitate the in situ controlled delivery of glycerol as a substrate for whole cell biocatalysis. The entrapment of the polyol within a silica gel matrix enabled the utilization of crude and moderately toxic bioderived substrates that could not be used in fed-batch mode. Different grades of glycerol were incorporated in gels and fed to C. butyricum for 1,3-propanediol production and to E. coli for recombinant protein production. Of particular note was the successful use of crude glycerol gels with E. coli. By virtue of gel immobilization, previously toxic crude glycerol samples were rendered active, and the use of gel technologies was therefore shown to expand the range of biomass that can be utilized in whole cell biocatalytic processes. Specific matching of the acid used in the gel synthesis with the fermentation medium further supported cell growth.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
