Food additives have the following three characteristics: one is the substance added to the food, therefore, it is generally not eaten as a food alone; the second is to include both synthetic and natural substances; third is added to the food. The aim is to improve the quality and color, aroma, taste and the need for preservation, preservation and processing.
Food additives have greatly promoted the development of the food industry and have been hailed as the soul of the modern food industry. This is mainly because it brings many benefits to the food industry. Its main functions are as follows:
For example, preservatives can prevent food spoilage caused by microorganisms, prolong the shelf life of foods, and also prevent food poisoning caused by microbial contamination. Another example: antioxidants can prevent or delay the oxidative deterioration of foods to provide food stability and storage, while also preventing the formation of auto-oxidation substances that may be harmful. In addition, it can also be used to prevent enzymatic browning and non-enzymatic browning of foods, especially fruits and vegetables. These have a certain meaning for the preservation of food.
Improve the senses
Improve food sensory traits
Appropriate use of coloring agents, color-protecting agents, bleaching agents, flavorants, and food additives such as emulsifiers and thickeners can significantly improve the sensory quality of foods and meet the different needs of people.
Maintaining nutritional value
Appropriate addition of certain food nutrition enhancers belonging to the natural nutrient range during food processing can greatly improve the nutritional value of foods, which is of great significance for preventing malnutrition and nutrient deficiencies, promoting nutritional balance and improving people's health.
Increase variety and convenience
There are as many as 20,000 kinds of foods on the market for consumers to choose. Although most of these foods are processed through certain packaging and different processing methods, in the production process, some products with different colors, flavors and tastes are different. Coloring, flavoring, flavoring and even other food additives are added to the extent. It is these numerous foods, especially the supply of convenience foods, which bring great convenience to people's lives and work.
Convenient food processing
The use of defoamers, filter aids, stabilizers and coagulants in food processing can be beneficial to food processing operations. For example, when glucono delta lactone is used as a tofu coagulant, mechanization and automation of tofu production can be facilitated.
Other special needs
Food should meet the different needs of people as much as possible. For example, if a diabetic can not eat sugar, a sugar-free food supply can be made with a non-nutritive sweetener or a low-calorie sweetener such as sucralose or aspartame.
There are also enterprises that set their own additive standards. In the industry, leading enterprises are not allowed to add preservatives, cyclamate, pigments and spices.