What is the significance of the determination of acidity in food

Total acidity includes effective acidity and volatile acidity. The determination of acidity in food ensures the shelf life of the food. If the acidity is low, the food will be sour and taste bad. Some food will be rancid. If the acidity is high, the food will easily go bad, significant. The acid in food is not only regarded as the sour ingredient, but also considered as the important ingredient in food processing, storage and quality management.

1. Organic acids affect the color, aroma, taste and stability of food. 

2. The kind and content of organic acid in food is an important index to judge its quality. 

3. The ratio of organic acid content and sugar content in food, judge the ripeness of some fruits and vegetables. Apple and pear sugar: acid = 30:1, the best harvest quality; Sichuan Sweet Orange Sugar: acid = 8:1, the lowest harvest requirements. The ripeness of some fruits and vegetables can be judged by the ratio of organic acid content to sugar content.