| abstract |
The invention discloses a kind of processing technique of Dragonfruit Juice, comprise the following steps：Fruit stem and the bract of mildew and rot, rotten, damaged by vermin fruit and remaining is removed from the fresh Hylocereus undatuss plucked, and with clean water Hylocereus undatuss surface；Obtain Dragonfruit Juice by after the Hylocereus undatuss squeezing dilution after cleaning, first preprocessed, then centrifugal treating, after removing solid matter, the filter through 0.5 1 μm filters, and obtains one-level filtered juice after being then passed through ceramic micro filter film process；Add shitosan in one-level filtered juice, adopt ultrafiltration membrance filter after standing 60 100min, obtain trapped fluid and clear liquor；By above-mentioned trapped fluid through nanofiltration membrance concentration, obtain concentrated solution, by concentrated solution and above-mentioned prepared clear liquor mix homogeneously, the Dragonfruit Juice after being processed.The Dragonfruit Juice that the method is obtained is nutritious, and quality is high, in good taste, simple to operate, low cost. |