The difference between desiccant and preservative

Introduction: many people confuse desiccant with preservative What's the difference between desiccant and preservative? Understand through Baibai safety net Desiccant and preservative are two different chemical substances Preservative is the food additive added in food processing, and desiccant is packaged independently What are the differences between specific desiccant and preservative? Learn through Baibai safety net Generally, desiccant is packaged separately from food, absorbing the excess water in the packaging bag, so as to prolong the storage period of food, while preservative is added in the food, and it will enter the human body with the intake of food by the human body Desiccant refers to the material that can remove the moisture in the wet material, such as calcium sulfate and calcium chloride, etc., and can be dried by forming hydrate by combining with water; physical desiccant, such as silica gel and active alumina, etc., can be dried by physically adsorbing water Preservative refers to natural or synthetic chemical composition, which is used to add food, medicine, pigment, biological sample, etc to delay the growth of microorganism or corruption caused by chemical change Nitrite and sulfur dioxide are common preservatives The main function of preservatives is to inhibit the growth and reproduction of microorganisms, so as to prolong the preservation time of food and inhibit the substance corruption Through the above introduction, desiccant and preservative have a detailed understanding If you want to know more about food additives, such as the hazards of desiccant and food safety detector, you can go to Baibai safety net Editor in charge: he xianrob