The invention discloses a method and equipment for preparing
aronia melanocarpa primary pulp through a
supercritical carbon dioxide extraction technology, and aims to solve the problem that an existing technology is insufficient in adaptability. The method comprises the following steps: S1, pretreating raw materials, cleaning and sorting fresh
aronia melanocarpa fruits, destroying
cell walls through
physical field cooperation and composite
enzymatic hydrolysis, terminating
enzyme activity at low temperature, and
drying and crushing to obtain
powder; s2, polarity gradient modification: filling the
powder into a kettle, and injecting a modifier containing high-polarity, medium-polarity and bridging components to improve the
solubility of
anthocyanin; s3, gradient pressure extraction: after low-pressure
impurity removal, extracting active ingredients at
high pressure; s4, separation and purification: performing multi-stage decompression separation and refined
filtration to obtain a high-purity extracting solution; and S5, post-treatment, low-temperature concentration and residue removal,
antioxidant blending, low-temperature sterilization and aseptic packaging. The equipment comprises a pretreatment unit, an extraction unit and the like, and a split-flow spraying, composite stirring and turbulent flow structure is arranged in an extraction kettle. The
anthocyanin release and
retention rate is increased, impurities and residues are reduced, the process is green and mature, and the
high activity and purity of the primary pulp are guaranteed.