Preparation of calcium lactate

1, fermentation
Calcium carbonate as a neutralizing agent for

lactic acid fermentation broth with lime water

and after secondary crystallization, the direct

production of lactate. Zinc lactate

fermentation feedstock liquid or paste of rice

flour can be used (corn flour) dual enzymatic

hydrolysis, the specific reference to lactic

acid fermentation.
2, and in France
Sodium lactate at 50% of the product was added

calcium hydroxide or calcium oxide for

neutralization reaction, and then filtered to

remove insoluble impurities, and then cooling

crystallization, separation, drying products.

This process is simple, but the cost is higher.

2C3H6O3 + Ca (OH) 2 → (C3H5O3) 2Ca +2 H2O
3, gelatinization of rice by high pressure,

diluted with water cooled to 50-53 ℃, access

Aspergillus and Lactobacillus delbrueckii,

lactic acid buffered lactic acid metabolites, calcium

phosphate and then added to obtain a crude

calcium lactate, and finally purified , or with

calcium carbonate and dilute acid solution, and

then the solution was evaporated in the system.

Refining process is the use of magnesium

hydroxide and magnesium hydroxide reacts with

calcium, it is the nature of cohesion, so that

part of the fermentation broth and protein

impurities removed after condensation, and then

concentrated in vacuo, crystallization, refining

lactate.