The effective application of acidity regulators is mainly controlled by the required characteristics of food, usually organic acids and salts with buffering effects. And because many organic acids are normal components of food, or participate in the normal metabolism of the human body, they are highly safe and widely used.

Acidity regulators, also known as pH regulators, are substances used to maintain or change the pH of food. Each acidity regulator has a different sourness and sourness profile. There are many ways to classify acidity regulators.

Sweeteners are food additives that impart sweetness to soft drinks. Sweeteners can be divided into nutritive sweeteners and non-nutritive sweeteners according to their nutritional value. According to its sweetness, it can be divided into low-sweetness sweeteners and high-sweetness sweeteners.

Food additives refer to chemically synthesized or natural substances added to food for the purpose of improving food quality, color, aroma, and taste, as well as for the needs of antisepsis and processing technology.