Gas-filled packaging method for retaining freshness of cherries

Abstract

The invention relates to the technical field of package and in particular relates to a gas-filled packaging method for retaining the freshness of cherries. According to the invention, a composite controlled-atmosphere packaging method is adopted, wherein air in a packaging box or packaging bag is replaced; the packaging box or packaging bag is made from a low-barrier film; and the controlled-atmosphere gas consists of 5-8% carbon dioxide (CO2), 82-87% nitrogen (N2) and 8-10% oxygen (O2). The packaging box or packaging bag is sealed after air in the packaging box or packaging bag is replaced, and then stored at a temperature of 0-4 DEG C. The gas replacing rate is over 99.8%, and the error rate of the freshness retaining gas mixing accuracy is less than 1.5%.

Description

[0001] technical field

[0002] The invention relates to the technical field of packaging, in particular to an air-filled packaging method for fresh-keeping cherries. Background technique

[0003] At present, the commonly used food preservation (or quality preservation) methods are: (1) chemical preservation; (2) freezing preservation; (3) vacuum high temperature sterilization preservation; (4) vacuum nitrogen filling preservation; (5) composite gas (6) Natural biological preservation. Among the six fresh-keeping (quality-preserving) technologies mentioned above, chemical preservation uses chemical agents to preserve antiseptic and inhibit bacteria, but consumers are limited due to concern about the side effects of preservatives; the shortcoming of frozen preservation is that the taste and taste of food will change after freezing; The disadvantage of bacteria is that it damages the unique taste, taste and nutrition of food; Nitrogen-filled packaging can better maintain the ...