Concentrated pomegranate clear juice manufacturing technique

Abstract

The invention discloses the production process of a concentrated pomegranate clear juice, which solves the technical problems that are difficult to be solved in the production process of concentrated pomegranate clear juice, such as browning, high turbidity and haze and achieves the industrial production of high-quality concentrated pomegranate clear juice. The technical scheme of the invention comprises following steps: quality control of pomegranate, cleaning, peeling, adjusting pH value, squeezing, pre-pasteurization, hydrolyzing with enzyme, filtering, evaporation for concentration, post-pasteurization and aseptic packaging. The concentrated pomegranate clear juice obtained by the invention has wine red color, pH value of 2.8 to 3.7, turbidity 0 to 25 NTU, transmittance (T625) equal to or larger than 90% and color ratio (A520nm/A430nm) equal to or larger than 1.0. Tests show that pectin and the starch are negative, and no pathogenic bacterium is detected.

Description

Production technology of concentrated pomegranate juice technical field The invention relates to a fruit juice production process, in particular to a production process of concentrated pomegranate clear juice, which belongs to the technical field of food deep processing. Background technique Pomegranate juice is rich in sugar, malic acid, citric acid, protein, vitamin C, anthocyanin polyphenols, and a small amount of estrone, estradiol, mannitol and trace elements. It has strong anti-aging, nerve protection, emotional stability, prevention and treatment of heart disease caused by atherosclerosis, slows down the oxidation process of cholesterol, reduces deposited oxidized cholesterol, promotes the synthesis of skin collagen and inhibits prostate cancer cells, etc. effect. The antioxidant capacity of anthocyanin polyphenols in pomegranate juice far exceeds that of green tea polyphenols, grape polyphenols and red wine. The supply of concentrated pomegranate juice in the in...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to disclose an advanced technology for the production of concentrated pomegranate clear juice, solve the difficult technical problems such as brownin...