A respiratory carbon dioxide climacteric fresh cut fruits and vegetables intelligent display type

A respiratory carbon dioxide hop variations fresh cut fruits and vegetables intelligent display methods, belonging to the technical field of fresh food storage. The present invention will be enucleated bayberry, the first acidic aqueous ultrasonic assisted extraction, ultrasound-assisted alcohol precipitation, AB-8 resin to obtain purified natural dye solution was adjusted pH 5 ~ 6; the natural cotton fiber paper soaked in the dye solution, removed, drain, natural dye film adhered to the surface of the cotton fiber paper; while natural dye solution and methyl cellulose, glycerol mixed, pour plates, natural pigment film to dry; and densely packed monolayer films of low density polyethylene natural cotton fibers adhered natural pigment dye film paper film and the surface of the indicator card into CO2. CO2 safety instruction card of the present invention, the production process is simple, help consumers to buy fresh, high-quality fresh-cut fruits and vegetables.