Kinetic analysis of lactic acid fermentation by using an extended logistic model.

This study aimed to analyze the dynamics of biomass growth, lactic acid production, and glucose consumption for three microorganisms; Weissella cibaria IBUN 090–03684, Lactobacillus pantarum IBUN 090–03774, and Lactobacillus pantarum IBUN 04139 by using an extended logistic model. The microorganisms were cultivated in a 1 L bioreactor with pH control by using MRS medium at 37 ∘C for 24 h at 100 rpm. Weissella cibaria IBUN 090–03684 exhibited the highest product yield (1.26 gg−1), followed by Lactobacillus plantarum IBUN 04139 (0.96 gg−1), and Lactobacillus plantarum IBUN 090–03774 (0.90 gg−1), respectively. The results indicate that Weissella cibaria IBUN 090–03684 holds significant potential for large-scale lactic acid production. Furthermore, the reported modeling strategy fits well with experimental data for the three microorganisms evaluated. [Display omitted] • The logistics function is a good option for estimating kinetic parameters. • W. cibaria IBUN 090–03684 is a good option for large scale lactic acid production. • Lb. plantarum IBUN 04139 has the highest lactic acid production rate. • PLA from microbial lactic acid production can replace the plastic packaging. [ABSTRACT FROM AUTHOR]