Grape preservation method and product of grapes

Abstract

The invention discloses a grape preservation method and a product of grapes. The grape preservation method includes the steps of inactivation, namely breaking grape cells, releasing contents of the cells and stopping biological metabolism of the cells; ripening, namely placing the product subjected to wall breaking treatment for ripening; preservation, namely freezing the ripened product. With themethod that the grape cells are subjected to wall breaking through inactivation, cell contents with high quality grape flavor and taste are obtained; cell biological metabolism is stopped to avoid cryogenic frostbite; sugar is converted into fruit acid through ripening, digestion and absorption is facilitated, and health is benefited; better taste and flavor can be obtained by ripening, so that the grapes with different maturity can reach the same maturity, which is convenient for industrial production and management; freezing slows down or even chemical reactions stop can keep fresh for a long time without adding any preservatives; the product is convenient to eat, elegant, convenient to transport and efficient, and the worldwide problem of grape transportation and preservation is solved.

Description

technical field [0001] The application relates to the field of grape preservation, in particular to a grape preservation method and its products. Background technique [0002] Grapes are one of the fruits that are often eaten. They are not only delicious, but also have high nutritional value. Glucose-based sugar content in ripe grapes is as high as 10%-30%. Grapes are rich in a variety of fruit acids, which are helpful for digestion. Eating more grapes can strengthen the stomach. Grapes contain minerals such as calcium, potassium, phosphorus, iron, vitamin B1, vitamin B2, vitamin B6, vitamin C, and vitamin P. beneficial. [0003] However, on the one hand, the seasonality of grapes is strong, and it is difficult for consumers to eat fresh grapes outside the picking season, and usually only raisins can be eaten outside the picking season. On the other hand, picking, preserving and transporting grapes is an extremely difficult problem. The traditional methods of picking, s...

AI Technical Summary

Problems solved by technology

[0003] However, on the one hand, the seasonality of grapes is strong, it is difficult for consumers to eat fresh grapes outside the picking season, and usually only raisins can be eaten outside the picking season

On the other hand, picking, preserving and transporting grapes is an extremely difficult problem

The traditional methods of picking, storing and transporting grapes have the following problems: (1) For transportation in different places, only immature or low-maturity grapes can be picked. (2) It is extremely difficult to control the ripeness of grapes in the process of transportation, storage and sales; (3) Low-temperature transportation or storage is likely to cause frostbite of grapes and affect the quality of grapes

(4) Grapes are afraid of being pressed and touched, and it is easy to cause bruises during transportation

However, the drying process will inevitably cause the loss of nutrients, and the raisins will not have the fragrance and taste of fresh grapes.