We often have customers asking, for example, how long will the product extend after adding sodium dehydroacetate? How can I use your anticorrosion products? Why does the anticorrosion effect be not obvious? In order to help customers understand the products, Qingdao Dawei company will often have some knowledge of science and technology to make consumers more knowledge-based on preservatives.
As with all kinds of food additives, preservatives must be added strictly in accordance with the provisions of the hygienic standard for the use of food additives in China, which can not be used beyond the standard. There are many problems in the practical application of preservatives, such as: it can not achieve the effect of antisepsis, affect the flavor and quality of food. For example, when tea polyphenols are used as preservatives, too high concentration will make people feel bitter and astringent, and will also cause food discoloration due to oxidation.
In order to avoid these problems, the following points should be mastered in the use of preservatives:
1. synergistic effect. The combination of several preservatives will achieve better results, but the use of preservatives must meet the hygienic standard. The dosage should be converted to a scale and should not exceed the maximum usage.
2. can appropriately increase the acidity of the food (reduce the pH). Bacteria are not easy to grow in low pH value foods.
3. and reasonable processing, storage and use. If hot processing reduces the number of microbes, it is added after heating.
As far as sodium deacetate products are concerned, because they inhibit the growth of mold and yeast, if the fermentation process is involved in the product process, we should use sodium dehydrogenate after fermentation, which will achieve better results.
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