Preparation method of Dongge Ali extract

Preparation method of Dongge Ali extract
(1) Take the dry raw material of Dongge Ali and grind it to 80-120 mesh; Take 500kg powder (the total content of lanthanone and epoxy lanthanone in the raw material is 0.28wt%) and carry out continuous countercurrent ultrasonic extraction: add purified water equivalent to 10 times the weight of the raw material, the ultrasonic extraction time is 30min, the temperature is 20 ℃, and the ultrasonic frequency is 30KHZ to obtain the extraction solution;
(2) The extraction solution obtained in step (1) is centrifuged through a tube, and the centrifuged solution passes through a 10000 molecular weight ultrafiltration membrane, and then transferred to a membrane concentration device. The concentration solution is concentrated to a Brix value of 9.6, and the weight of the concentrated solution is 86kg;
(3) Transfer the concentrated solution obtained in step (2) to the batching tank and add 14.48kg α- Cyclodextrin, stirring and homogenizing at normal temperature for 20min to obtain homogenization solution; The weight ratio of the inclusion agent to the solute in the concentrated solution is 2:1;
(4) Carry out spray drying of the homogeneous solution obtained in step (3) to obtain 20.98kg of Dongge Ali extract powder. The total weight content of lanthanone and epoxy lanthanone in the powder determined by HPLC was 6.44%, and the transfer rate of active components was 96.51wt%. The product has low bitterness.