As a kind of protein, enzyme is biodegradable. Adding enzyme to detergent can replace part of the surfactant. Because of the better washing effect of detergent with enzyme, it can reduce the waste of water. Protease has good decontamination effect on milk and other stains. Adding crude keratins to detergents can be used to treat human blood-stained clothing. Lipase is used to remove oil stains and can also be added to kitchen cleaners. Cellulase can enlarge the holes in the fabric, making the fabric softer and more skin-friendly after washing. Adding peroxidase to detergent can oxidize the leached color into colorless material, thus achieving the purpose of preventing cross color.

Physical and chemical methods are commonly used in sugar industry to extract sugar products from raw materials such as sugarcane, sugar beet or raw sugar. Because of its advantages of high efficiency, no pollution and simple operation, enzyme preparation has a broad application prospect in sugar industry. Pectinase plays an obvious role in reducing the viscosity and improving the clarity of sugar juice. The application of amylase, glucanase, peroxidase and polyphenol oxidase was beneficial to the clarification and decolorization of sugarcane products.

The application of enzyme preparation in leather industry gets increasingly widespread, because of its characteristics of high efficiency and specificity. Enzymes such as protease, lipase, pancreatin, and carbohydrase have been widely used in prepared processing, tanning, post-tanning wet processing of leather industry.

In the pulp and paper industry, the use of xylanase, mannanase, laccase and manganese peroxidase to assist bleaching can reduce the amount of chlorine, chloride and other chemical bleaching agents, and greatly reduce the content of toxic chlorinated organic compounds in the waste liquid. Biological enzymes for waste paper deinking include cellulase, hemicellulase, esterase, lipase, pectinase and laccase. Xylanase, pectinase, cellulase and hemicellulose can be used to remove bark.

The enzymes used in textile mainly include cellulase, protease, pectinase and amylase, which all belong to hydrolytic enzymes, and their function is to promote the hydrolysis reaction.