Process flow of lactobacillus fermentation broth

      The fermentation broth is concentrated through membrane filtration, and the concentrated solution can be filtered through plates and frames or directly used as a calcium supplement for livestock feed** The membrane permeate and the plate frame pressure filtrate are concentrated through nanofiltration, then crystallized by standing still. Calcium lactate is obtained by filtering through the filter screen. High purity solid calcium lactate can be obtained by washing the surface fabric liquid with cold water. The filtrate can be concentrated again and crystallized again. According to the process requirements, the filtrate can be collected and concentrated again to improve the yield.

Nanofiltration filtrate can also be used as an additive for livestock feed.

Advantages of using membrane filtration system to extract calcium lactate:

1. Conducted at room temperature, under mild conditions without component damage, particularly suitable for heat sensitive substances;

2. Pure physical filtration, without phase change or qualitative change, without damaging the active ingredients;

3. High filtration accuracy, uniform pore size distribution, capable of purifying and concentrating the effective components of fermentation broth;

4. The system is easy to operate, has a short process, and is easy to clean and maintain;

5. After the fermentation broth is concentrated through a filter membrane, it not only has a small volume, fast column loading time, and low resin consumption, but also can simultaneously recover mycelium, improving production efficiency, resin service life, and regeneration cycle;

6. The system is designed for cross flow operation, without the need for adding filter aids and introducing new impurities, completely solving the problem of pollution and blockage;

7. Modular design of the system, convenient replacement of filter materials, design of online regeneration cleaning and sewage discharge devices, reduce labor intensity and production costs, and improve production efficiency;

8. Select stainless steel sanitary materials that comply with QS quality standards;

9. The system is automatically controlled by PLC, with low labor intensity. The membrane filtration process is carried out in a closed container, achieving clean production;

10. The membrane filtration element has a large filling area and a small system footprint, making it convenient for technical improvement, expansion, or new construction projects, effectively reducing investment and production costs.