Related Experiment Video
Updated: Nov 14, 2025

Production of Chemicals by Klebsiella pneumoniae Using Bamboo Hydrolysate as Feedstock
Published on: June 29, 2017
Batch fermentation kinetics of acetoin produced by Bacillus subtilis HB-32
Hui Xu1, Yanjun Tian1, Shanshan Wang1
1Key Laboratory of Food and Fermentation Engineering of Shandong Province, Shandong Food Ferment Industry Research & Design Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P. R. China.
Objectives:
The aim of this work was to study the changes of bacterial cell growth, acetion formation and glucose consumption with fermentation time during batch cultivation.
Results:
A mathematical model of cell growth, product synthesis, and substrate consumption changes with time during the batch cultivation of acetion was established. By analyzing the fitting curve of the kinetic model, it is found that the calculated value of the model fits well with the experimental value, and the fitting model R2 is greater than 0.98.
Conclusions:
The kinetic model established in this experiment can better reflect the batch cultivation process of acetion.
Related Concept Videos
Microbial Fermentation
Fates of Pyruvate
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...

