Fermentation engineering is a discipline that studies the cultivation, reproduction, production and extraction of metabolites of microorganisms under different conditions, involving biology, chemistry, engineering and other aspects.

The significance and functions of fermentation engineering include:

1. Produce important biochemical products such as acids, alkali, ammonia, enzymes, antibiotics, alcohol, and organic acids to improve the benefits of the national economy. .

2. Study microbial metabolites, expand understanding of biophysiological chemistry, and provide more scientific research and experimental basis for treating diseases and other fields.

3. Study basic biological issues such as reproduction, mutation, and inheritance of microorganisms.

4. Study microbial growth dynamics, metabolic regulation, reaction kinetics and other processes to provide theoretical basis for the optimization of industrial processes.

5. Study the optimization of process parameters in fermentation engineering, improve production efficiency and output, and reduce production costs.

6. Study the mechanism of fermentation engineering, promote the development of industry, solve the problems of high labor and material costs and low efficiency in the past, and provide guarantee for the continuous growth of industrial output value in the future.