The invention discloses a preparation technology for watermelon juice capable of improving
immunity. The preparation technology comprises the steps of 1 pre-treatment, wherein seedless watermelons areselected, peeled and frozen, and after the watermelons are
cut into pieces and frozen, the frozen watermelon pieces are placed in an additive solution containing mango peel extracts and aloe extractsand taken out for unfreezing; 2 juicing, wherein saccharose is sprayed to the surfaces of the thoroughly unfrozen watermelon pieces for preserving, then the preserved watermelon pieces are juiced, and filter residues and filter liquor A are obtained after
vacuum extraction filtration; the filter residues and watermelon peels are mixed, smashed and subjected to
ultrasonic dispersion, and after juicing and extraction
filtration, filter liquor B is obtained; 3 compounding, wherein the filter liquor A is mixed with the filter liquor B, and then after
ultrafiltration, sterilization and
metal and microbiological detection, the watermelon juice capable of improving the
immunity is obtained. The preparation technology has the advantages that the preparation technology is simple, not only are allthe effects of the watermelons utilized, but also the additional value and economic value of the watermelons are improved, and the watermelons have excellent health care effects of blood fat reductionand weight losing, can maintain
dynamic balance of the
organism oxidation and
antioxidant system, remove redundant free radicals, and improve the
organism phylactic power and
immunity.