It's called the first edible acid. It is widely used in the food industry as acid, solvent, buffer, antioxidant, deodorant, deodorant, chelating agent and so on
1. Citric acid is one of the natural ingredients of fruit juice, which can not only give fruit flavor, but also play the role of solubilizing, buffering and anti-oxidation, so that the ingredients of sugar, essence and pigment in the drink blend and coordinate, form a harmonious taste and aroma, and increase the anti-microbial anti-corrosion effect. Therefore, it is widely used to prepare various fruit soft drinks
2. The role of citric acid in jam and jelly is similar to that in beverage. It mainly regulates the pH of the product and gives the product sour taste
3, added to candy can increase the sour taste and prevent the oxidation of various components and sucrose crystallization precipitation
4. Citric acid in the production of pectin soft candy can adjust the acid taste and enhance the gel strength. Anhydrous citric acid is used in chewing gum and powdered foods
5. Citric acid in frozen food has the characteristics of chelating and regulating pH, which can strengthen the effect of antioxidants and inactivate enzymes, and ensure the stability of frozen food more reliably. Citric acid alone or in combination with isoascorbic acid helps extend the shelf life of frozen fish and shellfish by inactivating and chelating trace elements in enzyme lines that cause fish spoilage and shellfish spoilage
6. Seafood is generally soaked in 0.25% citric acid and 0.2% isoascorbic acid solution before freezing, which is conducive to preservation and refrigeration. It is also effective for keeping fresh pork fresh and preventing corruption. Citric acid can also inhibit the color and aroma deterioration of frozen fruits, which also inhibits the enzyme system in fruits and prevents the oxidation of trace elements