| abstract |
The invention discloses a preparation method of a total flavonoid calcium ion complex of thorn fruit, characterized in that the raw material is a thorn extract of thorn and a calcium chloride dihydrate with a total flavonoid content of more than 60%; the total flavonoid content is greater than 60%. The extract of the thorn fruit rosemary is made into a solution of total flavonoids having a concentration of 0.72 mg/mL with anhydrous methanol, and the calcium chloride dihydrate is made into a solution having a mass concentration of 6 mg/mL with deionized water; Mix, adjust the pH of the system with 10% ammonia in methanol to 10.5, and shake at a constant temperature in a water bath temperature of 30 ° C for 4 hours, then centrifuge, collect the precipitate, wash and dry, then obtain the total flavonoids Calcium ion complex. |