Method for extracting sugar from residual sugar liquor in production of preserved fruits

Abstract

The invention discloses a method for extracting sugar from residual sugar liquor in production of preserved fruits. The sugar content of sugar solution, namely a by-product in processing, generated in the production of the preserved fruits reaches 30% to 40%, but in the conventional production process of the preserved fruits, the sugar solution is always abandoned due to the lack of an ideal sugar extraction method. The method comprises the measures of filtration, dilution, enzymolysis, ultrafiltration, decoloration and concentration to extract the sugar from the residual sugar liquor in the production of the preserved fruits; and the sugar degree of obtained syrup reaches 70 degrees Bx, the sugar content of the syrup reaches 70%, and the mixed syrup contains fructose, glucose and sucrose. The method can be used for realizing the comprehensive utilization of the residual sugar liquor in the production of the preserved fruits of preserved fruit production enterprises, reducing the production costs of the preserved fruits, controlling the environment pollution caused by the preserved fruit production enterprises, thus achieving multiple purposes, and serving as a powerful measure for promoting the technical progress of the preserved fruit production enterprises.

Description

technical field [0001] The invention relates to a sugar extraction method for producing residual sugar liquid of preserved fruit, and belongs to the technical field of fruit processing. Background technique [0002] Glucose and fructose exist in fruit, and in the production of preserved fruit, fruit juice needs to be exuded. The treatment method is to add sugar to the fruit to be processed. Under the action of osmotic pressure, the water in the fruit will be It will ooze out. The oozing liquid contains both fruit juice and added sugar. These sugar-containing solutions produced during processing are by-products of the processing process. The sugar content reaches 30-40%, which contains both Fructose also contains glucose and sucrose, which are often discarded in the traditional dried fruit production process because there is no ideal sugar extraction method for this sugar-containing solution. Obviously, discarding this sugary solution would be wasteful and polluting the envi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for extracting sugar from the leftover sugar solution of preserved fruit, which overcomes the shortcomings of the traditional production of the leftover sugar solution from preserved fruit that cannot be fully utilized, resulting in waste and environmental pollution.