Enzymes are biologically active proteins produced by the metabolism of microorganisms, therefore they have poor thermal sensitivity and are not resistant to high temperatures. The traditional production process of enzyme preparations includes fermentation, flocculation precipitation, filtration solvent extraction, and vacuum evaporation drying. The production process has high energy consumption, high enzyme deactivation rate, and low yield. The traditional production process involves fermentation, coagulation and precipitation, solvent extraction through filtration, vacuum evaporation, and drying. However, this process has high energy consumption, high enzyme inactivation rate, and low yield.

In the past decade, membrane separation equipment has been successfully used in the production of liquid enzyme preparations for separation, concentration, and purification, achieving good benefits. The overall separation process of membrane separation equipment can be carried out at room temperature without any phase or chemical changes, with a large separation coefficient and the ability to achieve continuous operation. Therefore, it is particularly suitable for the separation, concentration, and purification of thermosensitive substances such as enzymes.

Application of membrane separation equipment in enzyme production:

1. First, use ceramic microfiltration membranes or ultrafiltration membranes to separate broken cells, culture media, and other large molecular substances from enzyme preparations.

2. Then, the enzyme preparation is concentrated and purified using a nanofiltration membrane, which exhibits good performance at all temperatures and can effectively remove impurities even at low temperatures.

3. Solved the problem of temperature affecting enzyme activity and the high energy consumption of traditional evaporation concentration, while removing small molecule impurities and most salts, thereby improving product purity.

With the vigorous promotion of the biological enzyme industry by the country, enzyme preparations have been included in the national strategic emerging industry catalog and have received strong policy support, which means that the future development of the enzyme industry has been recognized by the country. In the future, more and more enterprises will join in and use enzyme preparations to achieve the integration of sustainable development and technology industries. While generating revenue, they can also save energy and reduce emissions. In response to the call for green industries, enzyme preparations can reduce industrial pollution and energy consumption, and to some extent promote the development of China's bioenergy and environmental protection industries. I believe that the development of Chinese enzyme preparations will also keep up with the times in the continuous industry competition, launching more and better products to benefit the public.