The invention relates to a
protein-free
momordica grosvenori pure-
flavor concentrated juice and a production method thereof. The production method comprises the following steps: (1) after washing thefresh
momordica grosvenori, squeezing the
momordica grosvenori, extracting the
pomace with
ice water, and merging the juice and an
ice water extract; (2) adjusting the pH value to alkaline, adding a
protease preparation, performing
enzymatic hydrolysis, heating and boiling the material, cooling the material, and performing
centrifugation; (3) passing the material through a cation exchange resin column, and collecting an
effluent; (4) passing the material through an anion exchange resin column, collecting the
effluent, and concentrating the product. The concentrated juice obtained by the methodhas a
protein content of less than 0.1%, a
mass content of
mogroside V as high as 4.53%, and a yield of up to 98%; The obtained concentrated juice is light yellow transparent and thick liquid, the smell is fragrant, the taste is sweet and saturated, no
odor is generated, the
sugar content is as high as 68
brix, and the
sweetness is close to that of
sucrose; The production method has the advantages of strong
operability, safety,
environmental protection and no
pollution, and is suitable for industrial production.