Propylene glycol is an organic compound (diol), usually slightly Sweet, odorless, colorless and transparent oily liquid, hygroscopic and easily mixed with water, acetone, and chloroform. It is widely used in the food, pharmaceutical and cosmetic industries.
In the food industry, propylene glycol reacts with fatty acids to form propylene glycol fatty acid esters, which are mainly used as food emulsifiers; propylene glycol is an excellent solvent for condiments and pigments. It can be used as a solvent to dissolve food additives that are insoluble in water, such as preservatives, pigments, and antioxidants, and then add them to food. It has strong hygroscopicity and has moisturizing and anti-freezing effects on food.
The specific functions of propylene glycol in the following foods are as follows:
1. When processing bread, it can be used as a stretching agent for margarine and a moisturizing agent for bread.
2. It can be used as a softener for food packaging, such as cellophane and cork soaked in this product to make them soft.
3. The flavor of the tofu made by adding this product to soy milk will not change during heating, and the white color can be increased. The volume of fried tofu is easy to become larger, and Can add luster.
4. Adding to stuffings and yokan can increase the preservative power.
5. Raw noodles can prevent drying, increase elasticity, prevent cracking, increase gloss, and increase shelf life.
6. It can be used as an extraction solvent for vanilla beans, coffee and other natural flavors.
7. It can be used as an anti-mold additive for noodles and stuffing cores.
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