Patent ID: 11891411
Assignee: CHENGUANG BIOTECH GROUP CO., LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC A  C | IPC C

Claim 5:
6. The method according to claim 2, further comprising:
removing the short-chain alcohol in the extract solution by vacuum concentration;
subjecting the stevioside adsorption resin to elution with water, subjecting the stevioside adsorption resin to desorption with an alcohol solution, and collecting the desorbed solution to obtain a stevioside extract; and
mixing the post-column solution, adjusting pH of resultant mixed liquid to be acidic, passing the mixed liquid through a chlorogenic acid adsorption resin for adsorption, subjecting the chlorogenic acid adsorption resin to elution with water, and subjecting the chlorogenic acid adsorption resin to desorption with an alcohol solution, and collecting the desorbed solution to obtain a chlorogenic acid extract.