Preparation method of multi-color red beet concentrated juice

Abstract

The invention discloses a preparation method of multi-color red beet concentrated juice. The preparation method includes washing, enzyme inactivation by electron beams, crushing, color protection, squeezing, centrifugation, ultrafiltration, concentration, sterilization, aseptic filling and irradiation treatment. The preparation method is simple in technology, has no damage to materials and abandons conventional high temperature enzyme inactivation methods; through the adoption of enzyme inactivation by electron beams, the loss and fading of the materials due to high temperature can be avoided;through electron-beam energy, enzyme inactivation effects can be precisely controlled, browning index can be decreased, and the color and nutrient compositions in red beets can be reserved to a greatextent; and products with multiple colors are prepared through different radiation doses, so that market application scope can be expanded, the demands for multiple colors can be provided, each colorcan be accurately monitored through a color difference meter, and therefore, the uniformity of color difference between finished products can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a method for preparing multi-color red beet concentrated juice. Background technique [0002] Red beet belongs to the genus Ricobeta and is a variety of cultivated beet. It originated in Europe and the United States, and is abundant in Egypt, Russia, Denmark, Italy and other countries and has a large area of ​​planting. At present, it has been successfully planted in many places in my country. The flesh and cubes of red beets are rich in organic and inorganic nutrients, and also contain betaine, vitamin U, vitamins B1, B2, B6, P, E, niacin, pantothenic acid, etc. Japanese research 50 years ago found that red beet has a strong effect on strengthening the body. Modern Chinese and foreign experts have found that it can promote the absorption of protein by humans and animals, improve liver function and promote metabolism; vitamin C in red beet is one of the antioxidant vitam...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to aim at the red beet concentrated juice product currently on the market only has a single color system, which cannot meet the diverse needs of the market, and the use of high temperature treatment in the preparation process leads to In view of the problems of low yield and high cost, a method for preparing multi-color red beet concentrated juice is provided. The method has simple preparation process, low energy consumption, low cost and high yield; the prepared red beet concentrated juice has extremely high stability Concentrated red beet juice of 1 to 5 colors can be prepared by using this method, that is, the products are respectively Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and the precise control of the color difference meter ensures the uniformity of the final product of each color; It solves the quality problem between product batches caused by the unstable color tone, and fully meets the market demand for multi-color systems

Images