Enzymes are defined as products with specific biological activities made by animals, plants and fungi through microbial fermentation. Enzymes in the market have complex components, including not only "enzymes", but also hundreds of substances such as polysaccharides, organic acids, alcohol, pectin, protein, vitamins and minerals produced after fermentation.

The word "enzyme" comes from Japanese and originally meant enzyme. It is a biocatalytic protein composed of amino acids. Under the most suitable conditions (such as human body), it can catalyze tens of thousands of reactions in a few seconds, which is different from the "enzyme" on the market now.

At present, the enzyme stock solution or enzyme beverage on the market are all products made by people fermenting various fruits or plants for a long time. Fruits, plants, grains, meat, etc. Can be fermented. Traditional fermented products such as yogurt, natto, lobster sauce, pickles, bean paste, flour paste, tofu, draft beer, distiller's grains, rice vinegar, etc. It is well known that "enzyme" can be seen everywhere.