Preparation method of tea essences particles

A method of preparing tea essences particles, characterized in that, comprising steps as follows:

• Step 1:
• soaking and extracting dry black tea to obtain tea soup;
• Step 2:
• filtering and separating the tea soup by using a ceramic membrane and a rolled ultra filtration membrane in turn to obtain dialyzed solution and concentrated solution;
• Step 3:
• purifying and precipitating the obtained concentrated solution by using acid precipitation treatment, tannin enzymatic treatment, isoelectric point precipitation, and rolled ultra filtration membrane in turn to obtain concentrated solution;
• Step 4:
• treating the obtained concentrated solution by using alkaline solution and acid solution in turn to obtain tea essences soup solution;
• Step 5:
• spraying and drying the obtained tea essences soup solution to obtain tea essences particles.