Lactic acid production from lactose by Lactobacillus plantarum: kinetic model and effects of pH, substrate, and oxygen

Growth and kinetics of Lactobacillus plantarum in the fermentation of edible Irish brown seaweeds

“…Production of lactic acid during fermentation by microorganisms can be affected by medium composition (carbohydrate source, sugar concentration and growth factors), the presence of oxygen, pH and product concentration (Burgos-Rubio et al, 2000). Fu and Mathews (1999) studied lactic acid production from lactose by Lactobacillus plantarum and found the cell yield to be higher under aerobic conditions whereas lactic acid production was higher under anaerobic conditions. Murphy and Condon (1984) reported the main end product of aerobic and anaerobic conditions to be acetic and lactic acid, respectively, thus demonstrating the significance of aeration in the optimization of fermentation processes.…”

Kinetic modelling of lactic acid production from whey by Lactobacillus casei (NRRL B‐441)

“…Models including terms for both substrate and product inhibition have been suggested as well as models considering only product inhibition. 5 -8 In the study by Fu and Mathews,9 model parameters such as specific growth rate and the Monod constant were expressed as a function of pH. So far, kinetic modelling studies with L. casei have been mostly conducted with substrates other than whey.…”

Relative Catalytic Efficiency of ldhL - and ldhD -Encoded Products Is Crucial for Optical Purity of Lactic Acid Produced by Lactobacillus Strains

“…plantarum ATCC 14917, and Lactobacillus casei ATCC 334 were selected as representative strains for exhaustive analysis. These three species are lactic acid high-producing strains, and their lactic acid products represent three different types (D, DL, and L, respectively) (see the supplemental material for details of batch fermentation) (Table 1) (5,9,14,16,17,18,23). Moreover, both ldhL and ldhD but no lactate racemase genes or homologs were found in all three genomes during sequencing and annotation (http://www.ncbi.nlm.nih.gov/genomes/lproks.cgi).…”