TY - JOUR ID - 15368 TI - Kinetics investigation of cell growth, xanthan production and sugar cane molasses consumption by Xanthomonas campestris JO - Iranian Journal of Chemical Engineering(IJChE) JA - IJCHE LA - en SN - 1735-5397 AU - Pazouki, Mohammad AU - Zakeri, Ali AU - Vossoughi, Manoucher AD - Materials and Energy Center AD - Material and energy research center AD - Chemical and Petroleum Engineering Department, Sharif University of Technology Y1 - 2015 PY - 2015 VL - 12 IS - 4 SP - 84 EP - 92 KW - Xanthan KW - Logestic model KW - Cell Growth KW - Luedeking-Piret model KW - Kinetics DO - N2 - In this research, unstructured kinetic modeling for cell growth evaluation by X.campestris, xanthan production and sugar cane molasses consumption in a batch culture were investigated. Logistic model for biomass growth, Luedeking-Piret model for xanthan biopolymer production and modified Luedeking-Piret model for sugar cane molasses consumption provides an accurate prediction of the fermentation kinetics parameters with high coefficient of determination R2 values.Luedeking-Piret model for xanthan biopolymer production in three different concentration of sugar cane molasses (30, 60 and 90 g/l) as the sole carbon source substrate were studied. A good agreement between experimental and predicted values indicated that the unstructured models were able to describe this fermentation process successfully. The values of specific growth rate μ_max of logestic model for sugar cane molasses (30, 60 and 90 g/l) were 0.029, 0.031 and 0.032 h-1 respectively. The values of α and β is 5.280, 6.594, 8.518 and 0.072, 0.066, 0.086 respectively which shows that the xanthan production is growth associated since the value of the growth associated parameter α is much more than the value of nongrowth associated parameter β in Luedeking Piret model. Moreover, the values of γ and 𝜂 in modified Luedeking-Piret model were obtained. UR - https://www.ijche.com/article_15368.html L1 - https://www.ijche.com/article_15368_72337c1832249e99fd3b3eb0a9feb9c0.pdf ER -