In the storage environment of fruits and vegetables, even if one-thousandth of the concentration of ethylene is enough to induce the ripening of fruits and vegetables, so the use of ethylene removal agent within 1 to 5 days after the harvest of fruits and vegetables can inhibit the respiration of fruits and vegetables and prevent ripening and aging. The following examples illustrate their deployment and use. (1)Physisorption type ethylene removal agent Activated carbon is packed in air-permeable city, paper and other small bags, together with the fruits and vegetables to be stored in a plastic bag or other container for storage. If the storage of fruits and vegetables is large, the activated carbon will be dispersed. Placed in the middle and upper layers of fruits and vegetables, the amount used is generally 0.3% to 3% of the weight of fruits and vegetables. If the activated carbon is damp, the adsorption performance will be reduced and it should be replaced. (2) Oxidative Adsorption-type Ethylene Removal Agents Oxidation-type preservatives are not generally used alone, but are coated on the surface of a porous adsorbent having a large surface area to constitute an oxidation-absorption-type ethylene-removing agent. For example, 5 grams of potassium permanganate, 5 grams of phosphoric acid, 5 grams of sodium diammonium phosphate, 65 grams of zeolite, 20 grams of bentonite, mixed together (or mixed in proportion), add a small amount of water, stir evenly, fully infiltrated, After drying, they are crushed into small particles with a particle size of 2 to 3 mm or made into columns of about 3 mm. The preservative is put into a breathable pouch and put into a container together with the fruits and vegetables to be stored, and the sealed pack is stored in the shade. It is suitable for all kinds of fruits and vegetables, especially for melon, grapes, peach fresh storage, the use of the weight ratio of 0.6% to 2%. (3) Catalytic ethylene remover Catalytic ethylene remover is used to catalyze the oxidative decomposition of ethylene with specific selective metals, metal oxides or inorganic acids. It is suitable for the removal of low concentration of endogenous ethylene. For example, 100 grams of sodium hypochlorite, 100 grams of chromium oxide, and 200 grams of buddha stone are mixed together (or mixed in this ratio) and mixed with a small amount of water to make particles or columnar bodies with a particle size of about 3 mm. Artificial drying at Â°C, after cooling is the required preservatives, this preservative is suitable for all kinds of fruits and vegetables, the use of 0.2% to 1.5%.