The invention belongs to the technical field of
chlorogenic acid extraction, and particularly relates to a process for extracting
chlorogenic acid from
green coffee beans. The process for extracting
chlorogenic acid from the
green coffee beans comprises the following steps: crushing the
green coffee beans; crushing the green
coffee bean micro
powder; carrying out ball milling on the obtained greencoffee bean wall-broken
powder twice; putting the ball-milled wall-broken
powder of the green coffee beans into a container; adding water and soaking, adding stabilizers, carrying out ultrasonic treatment, adding
bromine ion liquid, adding tween-20, uniformly stirring, carrying out ultrasonic treatment, carrying out suction
filtration, adding
dipotassium phosphate, stirring until
dipotassium phosphate is dissolved, centrifuging, filtering to obtain filtrate, carrying out reduced pressure
distillation and concentration on the filtrate, eluting the 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 constanttemperature to obtain a chlorogenic acid finished product. 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 for industrial implementation, and the obtained product is good in quality.