Modeling of pullulan fermentation by using a color variant strain of Aureobasidium pullulans

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Pullulan, which is comprised of glucose units, is a simple linear polysaccharide produced by Aureobasidium pullulans. Pullulan has long been used in various applications such as blood plasma substitutes, food additives, adhesive additives, flocculants, and even environmental pollution control agents. Mathematical models of biomass, pullulan, and sucrose profiles during fermentation not only provide information about the kinetic-metabolic nature of pullulan, but also facilitate the control and optimization of pullulan production. In this study, several models were modified and tested in order to describe biomass, pullulan, and sucrose profiles during batch fermentation using a color variant strain of A. pullulans. The results demonstrated that the modified Gompertz model can serve as a generalized equation to fit biomass production, pullulan production, and sucrose consumption. Furthermore, validation of this modified Gompertz model indicated that biomass (slope = 1.00, R2 = 0.991), pullulan (slope = 1.10, R2 = 0.991), and sucrose (slope = 0.96, R2 = 0.991) were all predicted accurately.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010
PublisherAmerican Society of Agricultural and Biological Engineers
Pages1611-1624
Number of pages14
ISBN (Print)9781617388354
StatePublished - Jan 1 2010

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010
Volume2

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences (miscellaneous)

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  • Cite this

    Cheng, K. C., Demirci, A., Catchmark, J. M., & Puri, V. M. (2010). Modeling of pullulan fermentation by using a color variant strain of Aureobasidium pullulans. In American Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010 (pp. 1611-1624). (American Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010; Vol. 2). American Society of Agricultural and Biological Engineers.