The invention discloses a process for extracting
chlorogenic acid from
green coffee beans, and relates to the technical field of
chlorogenic acid extraction. The process for extracting
chlorogenic acid from
green coffee beans provided by the invention comprises the following steps: crushing
green coffee beans, crushing green coffee beans, carrying out ball milling on obtained green
coffee bean wall-broken
powder twice, putting the green
coffee bean ball-milled wall-broken
powder into a container, adding water, soaking, adding an extracting agent and glycidyl compound modified hydroxypropyl-beta-
cyclodextrin, carrying out ultrasonic treatment, and filtering to obtain the chlorogenic acid. Carrying out reduced pressure
distillation and concentration on the filtrate, eluting a concentrate, removing impurities, adding
ammonium sulfate, extracting, adding
activated carbon to remove impurities, carrying out reduced pressure
distillation and concentration, extracting a chlorogenic acid crude product, and
drying at constant temperature to obtain a chlorogenic acid finished product. Compared with the prior art, the process for extracting chlorogenic acid from green coffee beans, provided by the invention, is high in extraction rate, simple in process, low in cost and easy to industrially implement, and the obtained product is good in quality.