Food additive refers to the various traces of substances used in food processing, usually the amount is no more than 2% of food quality. Why add them to food? The reasons are as follows: improving and maintaining the nutritional value of food and changing the color of food; ensuring microbial safety; maintain continuity and consistency of food quality.
The approved for use in food additives, one kind like vitamins provide nutrition enhancer function, the other has the function of disease prevention. For example, glycyrrhizin can protect the liver; polyphenols, xylitol can prevent cavities; xylitol is diabetic foods. Let's talk about the use of some food additives.
Acidity regulators, or PH control agents, used to adjust or maintain PH (acid or alkaline) of a food additive. Commonly used acidity regulators are citric acid, acetic acid and lactic acid. Sodium carbonate and potassium carbonate can be used in flour food, hydrochloric acid and sodium hydroxide are strong acids, strong alkali, which is corrosive to the human body, so they can only be used as processing aids. Also it need to be neutralized before food processing. In order to prevent loss of moisture during the store, humectants are added to prevent shrinkage or harden. The commonly used humectants are glycerin, sorbitol, wheat and grape buds of sugar alcohols, etc.
In food, emulsifying is a widespread phenomenon, such as ice cream, milk powder, Coffee mate, salad dressing, enzymes are, mayonnaise, etc. To guarantee and improve the quality of food, the food flavour enhancers complement and improve the smell of food. Add food flavour enhancers consciously can strengthen one's appetite to the food. We like sweet food, xylitol is a sweet substances with nutritive value. Healthy people even if they do not eat any food containing xylitol, 100 mg blood also contains 0.03-0.06 mg of xylitol. Xylitol is widely found in various fruits and vegetables in the natural world, but the content is very low. And the low-calorie sweeteners aspartame is widely used in food.
Some may say aspartame is not health, they need natural sweeteners. Actually, the amount of use and the intake amount is the key. Types of enzymes or defoaming agent are in our life, they are food additives, and food industry need them. How to find the best artificial sweetener, protease enzyme or defoaming agent is important. This related to people's health.
