Detailed introduction of Food Additives

Food additives are chemical substances that are added during food production and processing to improve the quality and characteristics of food. They can improve the taste, color, texture, freshness, and nutritional value of food products and provide consumers with a better food experience.

First, let's introduce a common food additive, food coloring. 

Food coloring is mainly used to change the color of food to make it more attractive. Common food colorings include natural colorings and synthetic colorings. Natural pigments generally come from plants, animals or microorganisms, such as carotene and chlorophyll. Synthetic pigments, on the other hand, are obtained through chemical synthesis, such as bright blue pigment and lemon yellow pigment. Food coloring is widely used in food products such as pastries, beverages, jams, etc. to make them more colorful and diverse.

Secondly, food preservatives are also one of the common food additives.

Food preservatives can prolong the freshness period of food and reduce the growth of bacteria and molds, thus maintaining the freshness and quality of food. Common food preservatives include sulfates and nitrites. They are widely used in meat products, fruit and vegetable products, canned food, etc. to ensure that the food is not easy to rot and deteriorate.

Besides colors and preservatives, food thickeners are also one of the commonly used food additives. 

Food thickeners can increase the consistency and texture of food, making it taste better. Common food thickeners include gelatin and pectin. They are widely used in jellies, sauces, dairy products and other foods to enhance the taste and quality of food.

In addition, food sweeteners are also one of the common food additives. 

Food sweeteners can replace traditional sugars to provide sweetness to food while reducing calorie intake. Common food sweeteners include sucralose and aspartame. They are widely used in candies, beverages, chewing gums and other foods to satisfy people's need for sweetness.

Finally, let's introduce a common food acidifier - citric acid. 

Citric acid can increase the sour flavor of food and enhance the taste of food. It is widely used in beverages, jams, condiments and other foods to make them more refreshing and delicious.