Propylene glycol, as a feed additive for dairy cows, plays an important role in dairy farming: it participates in regulating the metabolic balance of sugar and fat in dairy cows; Reduce the probability of ketosis and fatty liver in dairy cows; Improve milk yield and protein content in milk; It may increase the reproductive rate of dairy cows.

However, the dosage of propylene glycol should be strictly controlled when adding it to the feed of dairy cows, otherwise it may also have side effects on dairy cows, such as reducing the intake of dairy cows, resulting in ataxia, salivation, hyperventilation, depression and other symptoms.

What food is propylene glycol used in?

Propylene glycol is not only a chemical substance with similar structure to alcohol (ethanol), but also a food additive, processing aid and synthetic flavor for food.

According to the national food safety standard "Standard for the Use of Food Additives" (GB2760-20 14), the functions of propylene glycol are: stabilizer and coagulant, anti-caking agent, defoamer, emulsifier, water-retaining agent and thickener.

Propylene glycol can be used in flour products, but not in dairy products. Its esterification product-propylene glycol fatty acid ester can use dry dairy products, but does not include sterilized milk (usually called pure milk).