Method for extracting anthocyanin from mulberry wine residues

Fecha de publicación: 16/09/2022
Fuente: WIPO Wine
The invention provides a method for extracting anthocyanin from mulberry wine residues. The method comprises the following steps: (1) adding water into the mulberry wine residues, and crushing to obtain slurry; (2) mixing the slurry and an extraction solvent according to a volume ratio of (1: 2)-(1: 8), performing ultrasonic extraction, and then performing solid-liquid separation to obtain an extracting solution; and (3) adsorbing the extracting solution by using D101 type macroporous adsorption resin, then desorbing by using a 90% v/v ethanol solution as a desorption solution, collecting the desorption solution, and removing the desorption solution to obtain the anthocyanin. The release amount of effective components is increased by screening an extraction solvent; and the problem of instability of anthocyanin in the storage and transportation processes is solved in an embedding manner. According to the method, the mulberry wine residues left after processing are used as raw materials, anthocyanin in the mulberry wine residues is extracted, on one hand, the total amount of solid waste residues is reduced, on the other hand, the utilization rate and the additional value of mulberries are increased, and a basis is provided for deep processing and reutilization of the mulberry wine residues.