Main components of commonly used fresh-keeping agents for fruits and vegetables

Ethylene absorbent

It can inhibit respiration and prevent post-ripening aging. Mainly by potassium permanganate carriers, such as vermiculite, pumice, bentonite, calcium peroxide, aluminum, silicate or iron, zinc, etc., mixed with potassium permanganate solution in a certain proportion.

Carbon dioxide absorbent

Adjust the content of carbon dioxide, mainly activated carbon, small lime, magnesium chloride and so on. In addition, coke molecular sieve can absorb both ethylene and carbon dioxide.

Growth regulator

Substances (plant hormones) that have physiological activities on plant growth and chemical T agents that can regulate or stimulate plant growth can regulate the physiological activities of fruits and vegetables. The main auxins are auxins (such as 2mae4murine D, gibberellin (AG3), cytokinin, etc.), growth inhibitors (such as Bijiu, penicillin, dwarf, etc.), wax and coating agents, etc.

Oxygen absorbent

Absorb oxygen, reduce the content of oxygen, and inhibit the growth of oxygen-consuming microorganisms. Mainly by ascorbic acid, bisulfite, some metals such as iron powder and so on.

Antiseptic fungicide

Chemical or natural antimicrobial agents are used to prevent the growth and reproduction of molds and other contaminated bacteria, such as borax, sodium sulfate, sorbic acid and its salts, propionic acid, o-phenol (HOPP), clonitramine (PCNA), carbendan, carbendazim, etc., the most commonly used is orthophenol sodium (SOPP), the main function is to prevent pathogens from invading the fruit and kill the microorganisms on the surface of fruits and vegetables.

Water regulator

Moderate regulation, including steam inhibitors, dehydrating agents, etc. It is usually regulated by applying water evaporation inhibitor and anti-dew agent in plastic film packaging. Such as sodium polyacrylate, when the humidity in the bag decreases, it can release the trapped water to adjust the humidity.