Processing method of grape juice

Abstract

The invention provides a processing method of grape juice for solving the defects in the prior art. The processing method comprises the following steps: S1, picking grape raw materials and performingcleaning operation; S2, performing primary juicing operation on the cleaned grapes, and performing solid-liquid separation on the juiced product to obtain a liquid phase component A and a solid phasecomponent A; S3, performing liquid phase posttreatment operation on the liquid phase component A to obtain grape raw juice, and performing solid phase posttreatment operation on the solid phase component A to obtain grape raw powder and grape pectin particles; and S4, mixing the grape raw juice, the grape raw powder, the grape pectin particles and an additive according to predetermined proportionsto obtain the grape juice. The processing method of the grape juice provided by the invention fully utilizes the peel, pulp and stone components of the grapes, and the grape juice contains abundant nutrients without bitter and astringent taste. Meanwhile, grape waste cannot be generated, various natural effective components in the grapes are fully utilized, and the production cost, environmentalgovernance cost and the like are reduced.

Description

technical field [0001] The invention belongs to the technical field of grape processing, in particular to a method for processing grape juice. Background technique [0002] Grapes are common fruits with high quality and low price, and the market supply is very abundant. Grape juice is known as "vegetable milk" by scientists. According to a research report, grapes are the best food for patients with nephritis, hepatitis, arthritis and anemia, and they can also fight cancer and lung disease. Medical research has proved that grape juice is the best food for patients with nephritis, which can reduce albumin and sodium chloride in the kidneys. At the same time, grape juice also contains a lot of sugar that is easy to digest and absorb, and the carbohydrate content is as high as 16%, most of which are glucose. Grapes also contain 0.5% plant fiber and potassium chloride, iron and phosphorus. These substances help balance blood acid and are necessary for body building, especiall...

AI Technical Summary

Problems solved by technology

[0003] The existing grape juice preparation technology is generally to discard the peels, stones and other substances after the grape juice is squeezed, which not only causes serious production waste, but also aggravates the difficulty of environmental governance.

The reason for this is that the skins and seeds of the grapes have a bit of a bitter taste, which will lead to a decrease in the taste of the juice