Food additives in beverages are a topic that cannot be avoided in the beverage industry. Among them, food colorants, flavors, and acidity regulators provide beverages with color, aroma, and taste, and satisfy consumers' sensory needs. Preservatives and antioxidants can extend the shelf life of beverages.
<<What are the common additives>>
Food preservatives can change the permeability of microbial cells and prolong the shelf life of food.
After inspection, the detection rate of benzoic acid in carbonated beverages is relatively high, and the detection rate of potassium sorbate in milk beverages is high.
Beverages will chemically react with oxygen in the air during processing, storage and transportation, resulting in some undesirable browning that affects the sensory quality and taste of beverages, but before the reaction occurs, adding antioxidants can prevent the oxygen reaction from occurring. , so as to prevent and delay the oxidation of food and improve the stability of food.
The most common in beverages is ascorbic acid at 0.01%-0.05%.
Acidity regulators improve food flavor and adjust pH. Acidity regulators commonly used in the beverage industry include sweeteners and sour agents.
Sweeteners are generally divided into two categories, one is natural sweeteners (fructose, glucose, maltose), and the other is artificial sweeteners (such as sodium saccharin). The sweeteners used in beverages are generally natural sweeteners and some special chemically synthesized sweeteners, such as aspartame.
Acidulants can make food have a sour taste, and its function is to adjust the pH value of food, promote the dissolution of cellulose, calcium, phosphorus and other substances, prevent food from oxidative browning, and promote food digestion and absorption. Commonly used in beverages are natural acidulants (such as citric acid, tartaric acid, lactic acid, etc.).
<<The role of food additives in beverages>>
1. Conducive to preservation
For example, adding antioxidants to beverages can prevent or delay oxidation and improve the stability and shelf life of beverages; adding preservatives to beverages can effectively prevent beverages from spoilage caused by microorganisms and prolong the shelf life of beverages.
2. Provide and maintain nutritional value
Appropriate addition of nutritional fortifiers during beverage processing can improve the nutritional value of beverages, which can not only supplement the lack of nutrients in raw foods, but also strengthen nutritional balance, which is of great significance to improving the health of consumers.
3. Improve the sensory properties of beverages
Adding emulsifiers to beverages will make the complementary and compatible liquids in beverages form stable emulsions, thereby improving the taste of beverages; adding antioxidants to beverages containing more fat can avoid the interaction with oxygen in the air. Improve the stability of beverages and achieve the purpose of improving sensory properties.