Method for refrigerating and preserving Chunhua plums

Abstract

The invention relates to a method for refrigerating and preserving Chunhua plums. The method comprises the following steps of: picking; precooling; selecting; performing ozone treatment before packaging; packaging; and refrigerating, wherein in the precooling step, cold water is adopted for precooling, the temperature of the cold water is controlled to be 3-4DEG C, and the cooling time is 25 to 35 minutes, so that the core temperature of fruit bodies is reduced to be 4-6DEG C; in the refrigerating step, the temperature of a refrigeration house or a refrigerating chamber is kept to be 6-8DEG C, and the relative humidity is controlled to be 80-90 percent; meanwhile, an air interchanger is arranged in the refrigeration house or the refrigerating chamber. The invention has the advantages that: compared with the prior art, the method ensures that the refrigerating temperature is greatly improved, and power consumption cost of storage is saved; and moreover, after various quality indexes of the fruits are compared, the descent speeds of hardness and total soluble solid (TSS) content of the fruits under the cooling storage condition are lower than those of a control group, the rising speeds of the rotting rate of the fruits and the browning index of the pulp are slow, and the method is suitable to be promoted and applied in a large area.

Description

[0001] technical field [0002] The invention relates to the field of fruit preservation, in particular to a method for cold storage and preservation of Chunhua plums. [0003] Background technique [0004] Chunhua plum is a fine variety of plum grown in Changsha, my country. The market for high-quality Chunhua plum fruits is very tight, and prices are rising steadily. With the deepening of breeding and cultivation techniques, the cultivation area and output of Chunhua are increasing continuously, and the varieties are becoming more and more abundant. The fruit ripening period is from the end of April to mid-October. However, Chunhua plum is a respiratory climacteric fruit. Once the ripening process is started, a large amount of ethylene will be produced, and the respiratory intensity will increase. At room temperature, the respiratory intensity will be higher, the metabolism related to ripening will be strengthened, the post-ripening speed will be faster, the tissue...

AI Technical Summary

Problems solved by technology

[0005] At present, there are few reports on the storage research of Chunhua plum. Liu Guanmin and others from the Department of Food Science and Technology of Hunan Agricultural College have studied the storage performance of Chunhua plum. and low-high-low temperature storage, it is found that Chunhua plum will suffer from chilling damage at 0 ℃, and the fruit is easy to deteriorate at higher temperature, but the storage effect at about 3 ℃ is ideal