What is the compound use method of food preservative

Introduction: food preservatives are additives that can prevent spoilage caused by microorganisms and extend the shelf life of food Because it also has the function of preventing food poisoning caused by microbial propagation, its main function is to inhibit the propagation of microorganisms in food, so what is the composite use method of food preservatives? Let's learn more about it with the small edition of Baibai safety net There are 50 kinds of fungicides used in the United States and about 40 in Japan There are basically no fungicides, but only the inhibition of microbial growth The toxicity is low, and there is no damage to the flavor of food The use method is relatively easy to master Let's see the composite use method of food preservatives? All kinds of preservatives have a certain range of action, no preservative can inhibit all the putrefactive microorganisms, and many microorganisms may also produce drug resistance Therefore, preservatives with different action range should be used together When preservatives are used together, there may be three effects: one is synergism or synergism; the other is additive or additive effect; the other is antagonistic effect It is generally used with the same type of preservative For example, the acid preservative is used in combination with its salt and several esters of the same acid The effect of preservative can also be enhanced by using preservative with long-term effect and fast but durable effect Some of the metal salts are resistant to preservatives For example, calcium oxide can slightly weaken the antibacterial effect of sorbic acid and benzoic acid The effect of the same preservative may be different due to different application and time We must first ensure that the food itself is in good sanitary conditions, and put the time of adding preservatives in the induction period of bacteria If the proliferation of bacteria enters the logarithmic phase, the effect of preservatives is not good Preservatives are usually added early, with good effect and less dosage The more serious the contamination of food, the worse the effect of preservative If the food has gone bad, any preservative is irreversible The above is the content of how to use food preservatives in combination There is a lot of knowledge about food additives in this website's food safety knowledge base Interested friends can continue to pay attention to it and make their families eat healthier food Editor in charge: Zhang Xiaofu