Rapid preparation method of raisins

Abstract

The invention mainly relates to the technical field of food processing, and discloses a rapid preparation method of raisins. The method comprises the steps of raw material selection, primary drying, softening, secondary drying and packaging; the method is simple, the time of the whole drying process is shortened to 8-9 days, the efficiency of preparing the raisins is obviously improved, the obtained raisins are bright in color and luster, strong in aroma and transparent in texture, and by means of the preparation method, novel raisins are increased on the market; grapes are washed and then placed in a chitosan solution for soaking, residual pests remaining on the grapes are killed, and grapes are kept clean and hygienic, and protective film is formed on the surfaces of the grapes, and thearoma components are kept; the clean grapes are frozen and dried, more nutrients and aroma components are maintained, the drying time is shortened, and the drying degrees of the grapes are equal; after drying, a complex enzyme solution is sprayed for softening, so that the grape peels are soft, the grape bodies are transparent, and the nutrients and health-care components of the raisins are increased; secondary freeze-drying is conducted after softening, so that the raisins are soft in taste, sweet, palatable and bright in color and luster.

Description

technical field [0001] The invention mainly relates to the technical field of food processing, in particular to a rapid preparation method of raisins. Background technique [0002] Raisins, the meat is soft and sweet, rich in nutrients, rich in amino acids, vitamins and mineral elements, can nourish blood and Qi, improve anemia, relieve fatigue, treat neurasthenia, suppress cholesterol, and protect cardiovascular and cerebrovascular. The traditional preparation method of raisins is fresh The grapes are soaked in alkaline water and then dried in the sun or in the shade. When the weather is completely fine, it takes about 25 days to be exposed to the sun, and then about 20 days to soften. In Xinjiang, it takes about 40 days to dry in the shade, which takes too long. A small amount of rapid drying method is to dehydrate the grapes first, and then dry them with a dryer, which reduces the natural fruity aroma of the grapes, and destroys a large number of nutrients of the grapes a...

AI Technical Summary

Problems solved by technology

[0002] Raisins, the meat is soft and sweet, rich in nutrients, rich in amino acids, vitamins and mineral elements, can nourish blood and Qi, improve anemia, relieve fatigue, treat neurasthenia, suppress cholesterol, and protect cardiovascular and cerebrovascular. The traditional preparation method of raisins is fresh The grapes are soaked in alkaline water and then dried in the sun or in the shade. When the weather is completely fine, it takes about 25 days to be exposed to the sun, and then about 20 days to soften. In Xinjiang, it takes about 40 days to dry in the shade, which takes too long. A small amount of rapid drying method is to dehydrate the grapes first, and then dry them with a dryer, which reduces the natural fruity aroma of the grapes, and at the same time destroys a large number of nutrients in the grapes, making the color of the raisins darker, which cannot meet the needs of consumers.