Enzyme particle coated with alkali protease and preparation method thereof

Abstract

The invention relates to an enzyme particle coated with alkali protease and a preparation method thereof. The enzyme particle comprises a blank pellet core and an enzyme layer wrapped outside the blank pellet core. The enzyme particle also comprises an isolation layer and a protection layer which are wrapped on the enzyme layer. The enzyme particle coated with the alkali protease is round and hasno foreign odor and uniform particle size; 20-40 meshes of particles account for at least 90 percent. All properties of the enzyme particle are superior to abroad like products and are shown as follows: the unit weight is 700-900g, i.e. the enzyme particle has very high degree of mixing with washing powder; the enzyme activity of the enzyme particle is as high as 250000U / g-400000U / g; the dissolution velocity is high; the retention period is long, i.e. the enzyme particle can be stored for 6 months at the temperature of 25 DEG C, and the enzyme activity loss is less than 5 percent; the resistance to heat and humidity is good, i.e. the enzyme particle can be stored for 3 months under the conditions that the temperature is 37 DEG C and the humidity is 70 percent, and the enzyme activity lossis less than 10 percent; and a decontamination effect is good.

Description

technical field [0001] The invention relates to an enzyme granule coated with alkaline protease and a preparation method thereof, belonging to the technical field of enzyme preparation application. Background technique [0002] Protease is the most important enzyme among industrial enzymes. It can be divided into acid protease, neutral protease and alkaline protease according to its pH value. Alkaline protease, also known as serine protease, is a kind of enzyme suitable for hydrolyzing protein in the range of partial alkali (pH range is generally 9 to 12). It has strong hydrolysis, alkali resistance and heat resistance. It has a good degradation effect on protein stains such as blood stains and gravy. At present, alkaline protease is the most widely used enzyme in the world, and is widely used in washing, leather processing, medical treatment, food processing, feed and chemical industry, and waste treatment and other fields. [0003] In order to solve the problem of water ...

AI Technical Summary

Problems solved by technology

However, the existing alkaline protease granule products generally have problems such as rough and irregular particles, poor roundness, slow disintegration speed, poor heat and humidity resistance, short shelf life, and weak detergency.

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