With fresh wolfberry as the raw material, fresh wolfberry juice is manufactured through
pre-disinfections, enzyme treatment, juice extracting, color protection and
disinfections. The problems to keep wolfberry juice fresh at ambient temperature
have been solved, and the production of wolfberry juice has entered industrial
scale. The product is in form of orange-yellow juice. It is contained in aluminum-foil-plastic
bag (25kg/bag) in a carton box. The period of quality guarantee
is 12 months.
The color of carotenoid, lutein and physalin in wolfberry is susceptible to change
in the processing due to oxidation and high temperature. After the treatment with
natural color protector, the original color of wolfberry juice is kept unchanged.
In the analyses, no residue of Rogor, DDV, malathion and parathion was not
traced. In wolfberry juice, PB, AS, Hg or CD was not traced. The content of copper
was found to be 1.2mg/kg. The wolfberry juice is qualified on the basis of national
standard