Buffering agent: Disodium phosphate is a buffer that helps to maintain a stable pH level in the fermentation medium. This is critical because most microorganisms have a narrow optimal pH range for growth and fermentation. Disodium phosphate can help to resist pH changes caused by the production of acids or other metabolites during fermentation.
Nutrient source: Disodium phosphate provides essential nutrients, particularly phosphorus, for the growth of microorganisms. Phosphorus is crucial for many cellular processes, including energy production, nucleic acid synthesis, and protein synthesis. Disodium phosphate ensures that there is an adequate supply of phosphorus for the microorganisms involved in fermentation.
Precursor for secondary metabolites: In some cases, disodium phosphate can serve as a precursor for the production of secondary metabolites by microorganisms. Secondary metabolites are compounds that are not essential for growth, but they can have various biological activities and applications in industries such as pharmaceuticals, food, and cosmetics. Disodium phosphate can be metabolized by microorganisms to produce specific secondary metabolites.
Antimicrobial agent: Disodium phosphate has been reported to have antimicrobial properties against certain microorganisms. It can inhibit the growth of spoilage bacteria and fungi, thus helping to prevent contamination and延长保质期of fermented products.
