The invention discloses an extraction method of
passion fruit anthocyanin. The extraction method comprises the steps of 1, choosing
passion fruit and peel, and
drying; 2, screening; 3, smashing; 4, conducting high-pressure extraction on the mixture of the smashed
passion fruit and the peel; 5, filtrating; 6, conducting vacuum concentration and
drying to obtain passion fruit
anthocyanin. According to the extraction method of passion fruit
anthocyanin,
electric power is used, heat sources of a boiler and the like are not needed, and no waste matter and waste gases of dust,
slag and the like are discharged; the
solvent is recyclable in the extraction process, and no waste liquor is discharged. The extracted waste residues can also be used as a bioorganic
fertilizer, and the extraction method is a fully
green manufacturing technology. When passion fruit anthocyanin extracted from the method is applied in passion
fruit juice drink, the passion
fruit juice drink can be more natural in color, nutritional components can be more fully preserved, and the health care function of the product can be improved; moreover, the passion
fruit juice drink has better antioxidation, and
shelf life can be prolonged.