Types of food preservatives

Introduction: there are many kinds of food preservatives, synthetic ones, and the natural essence extracted from plants and animals What are the types of food preservatives? Understand through Baibai safety net Food preservatives mainly inhibit the growth of bacteria, so that food can be preserved for a long time, and will not rot, so this additive is still very important, so what are the types of food preservatives? Through the safety net of Baibai, introduce them in detail Food preservatives are mainly divided into chemical preservatives and natural preservatives according to their sources 1 Chemical food preservatives can be divided into three categories: acid preservative, ester preservative and inorganic salt preservative Acid preservatives and their characteristics acid preservatives such as benzoic acid, sorbic acid and propionic acid and their salts The characteristic of this kind of preservative is that the more acidic the system is, the better its antiseptic effect is, but it is almost ineffective in alkaline condition Ester type preservatives and their characteristics ester type preservatives mainly include p-hydroxybenzoate, gallic acid ester, ascorbyl palmitate, etc This kind of preservative is characterized by its effectiveness in a wide pH range and low toxicity Inorganic salt preservatives and their characteristics inorganic salt preservatives mainly include sulfur sulfite, pyrosulfite, nitrate and nitrite The characteristic of this kind of preservative is that on the one hand, it plays an antiseptic role in food, and more importantly, it reacts with food components and plays a role of color and taste 2 Natural food preservative, natural food preservative is a kind of substance with antiseptic effect which is directly separated and extracted from plants, animals and microorganisms, also known as biological preservative According to the source, it can be divided into three types: natural preservative from animal, natural preservative from plant and natural preservative from microorganism Natural preservatives from animals and their characteristics natural preservatives from animals refer to preservatives extracted from animals Commonly used mainly include: propolis, protamine, chitosan, etc The characteristics of this kind of preservative are that it is a kind of food with high nutritional value, pure natural, non-toxic, scarce resources and high price Natural preservatives from plants and their characteristics Plant derived natural preservatives refer to the effective antibacterial ingredients extracted from plants, such as tea polyphenols, clove oil, allicin, etc the narrow antibacterial surface and the limitations of affecting the color and taste of products need further research and development by scientific and technological personnel However, due to the rich raw materials and low price of plant derived natural preservatives, the research on them has always been a pioneering food at home and abroad Research and development hotspot in new field of preservatives These are the types of food preservatives I believe you have a certain understanding Then how to judge how much food preservatives are? After all, this chemical is harmful to health In addition to using food safety detector, you can also go to Baibai safety net Here is the most detailed knowledge of food additives Editor in charge: he xianrob