What should we pay attention to when applying preservatives?
What should we pay attention to when applying preservatives?
(1) Before adding preservatives, we should ensure that food sterilization is complete and there should be no large number of organisms, otherwise the addition of preservatives will not play the ideal effect. Potassium sorbate, will not play the role of anti-corrosion, but will become a nutrient source for microbial reproduction.
(2) We should understand the toxicity and scope of use of various preservatives, and add them according to the safe amount and scope of use. For example, sodium benzoate, because of its strong toxicity, has been banned in some countries, and China is also strictly not sure that it can only be used in sauce, jam, pickles, canned products and some wine.
(3) We should understand the effective use environment of various preservatives. Acidic preservatives can only be used in acidic environments with strong and effective anti-corrosion effect, but there is little effect in neutral or alkaline environments, such as potassium pionate and sodium benzoate; However, paraben esters in ester preservatives can also be used between pH4 and 8, and the effect is also good.
(4) We should understand all kinds of preservatives can inhibit the microbial species, some preservatives have the effect on mold, some have the effect on yeast, only a good grasp of this characteristic of preservatives, can be appropriate to the case, generally has been mixed form to comprehensive preservative preservation more, such as healthy eagle anti-rot king and mildew preservative and other products.
⑸ According to the different processing technology of various kinds of food, we should consider the price and solubility of preservatives, as well as whether they have an impact on the flavor of food and other factors, synthesize their advantages and disadvantages, and then add and use flexibly.
