TY - GEN
T1 - Modeling of pullulan fermentation by using a color variant strain of Aureobasidium pullulans
AU - Cheng, Kuan Chen
AU - Demirci, Ali
AU - Catchmark, Jeffrey M.
AU - Puri, Virendra M.
N1 - Funding Information:
This project is funded by Pennsylvania Agricultural Experiment Station . The authors thank the Statistical Consulting Center at Pennsylvania State University for providing guidance on statistical analysis.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:78649714914
SN - 9781617388354
T3 - American Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010
SP - 1611
EP - 1624
BT - American Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010
PB - American Society of Agricultural and Biological Engineers
ER -