The enzyme preparation industry is a high-tech industry. It is characterized by low dosage, high catalytic efficiency and strong specificity. It is an industry that serves other related industries. Its application areas cover light industry, food, chemical, pharmaceutical, agricultural and energy, environmental protection and other aspects.
There are many types of food enzyme preparations in China. Among them, enzymes for carbohydrates, enzymes for protein, and enzymes for dairy products account for a large proportion of food enzyme preparations, accounting for 81.7% . The main enzymes commonly used in food processing are the following: papain, glutamine transaminase, elastase, lysozyme, lipase, glucose oxidase, isoamylase, cellulase, superoxide disproportionation Enzyme, bromelain, ficin, ginger protease, and the like.
The enzyme preparations approved for use in the food industry in China include α-amylase, glucoamylase, immobilized glucose isomerase, papain, pectinase, β-glucanase, grape oxidase, α-acetolactate deamination. Enzyme , etc., mainly used in fruit and vegetable processing, baking, dairy processing and so on.
The amylase industry is developing rapidly, the output has doubled, and the variety has gradually increased. By 2006, the output has exceeded 5 million tons . The starch residual protein content in the enzymatic wet milling process and the gelatinization properties of the starch are better than the conventional wet milling process. The addition of protease not only shortens the soaking time, but also increases the yield of the protein instead of decreasing it. The novel enzyme preparations are being used in the production of injection glucose, liquid glucose syrup, high maltose syrup, fructose syrup, and various oligosaccharides. Starch sugar instead of sucrose has been used in food processing, confectionery, beer and beverage production.
In the 1980s, textile enzyme preparations represented by amylase, protease, cellulase, etc., were mainly used for fabric desizing, denim finishing and silk degumming, etc., which have been widely used in industry and also represent textile organisms. Technology is starting to rise. After entering the 21st century, the application of Chinese enzyme preparations in the textile industry has gradually expanded, including fiber modification, primary hemp degumming, pre-treatment of printing and dyeing, printing and dyeing wastewater treatment, garment garment processing and other fields . At present, the processing technology of textile enzyme preparations has been involved in almost all textile wet processing fields, and the market scale has shown a steady increasing trend.
Feed enzyme preparation is a new kind of feed additive which has emerged in recent years along with the continuous development of feed industry and enzyme preparation industry. It has the functions of improving nutrient digestibility, improving the stability of compound feed quality and reducing environmental pollution. As a kind of high-efficiency, non-toxic, non-side-effect and environmentally friendly green feed additive, feed enzyme preparation has become the fastest growing and most powerful part of the world industrial enzyme industry, and its application effect has been recognized worldwide. Chinese feed enzyme preparations have been added to feeds since the 1980s.
At present, there are more than 20 kinds of feed enzymes in China, including: amylase, protease, xylanase, β-mannanase, cellulase, β-glucanase, phytase and complex enzyme. These enzyme preparations can be divided into two categories: 1) mainly degrading polysaccharides and biomacromolecules, including proteases, lipases, amylases, saccharification enzymes, cellulases, xylanases, mannanases. The main function is to destroy the plant cell wall and fully release the cell contents; 2) to degrade phytic acid, β-glucan, pectin and other anti-nutritional factors, mainly including phytase, β-glucanase and Pectinase, its main function is to degrade the cell wall xylan and interstitial pectin components to improve the utilization of feed.