The invention discloses a gas antistaling agent, which is prepared by the following raw materials:
calcium carbonate,
stearic acid,
potassium permanganate, n-hexadecanoic acid, rich
fumaric acid,
sugar and
chlorine dioxide; and the preparation method of the gas antistaling agent comprises the following steps: 1, adding the
calcium carbonate in a container, performing vacuumization, heating, heat preservation and cooling treatment, adding the
stearic acid in the container and performing heating, pressure suction, rotary agitation and cooling treatment on the obtained mixture; 2, adding the
palmitic acid and the rich
fumaric acid in an agitating reactor to perform heating, heat preservation, stirring and cooling treatment; 3, adding the
potassium permanganate, the
sugar and the
chlorine dioxide as well as the mixtures obtained by steps 1 and 2 into the agitating reactor to stir the materials rotationally at a
room temperature so as to obtain the
raw material of the gas antistaling agent; 4, manufacturing the
raw material into power or particles; and 5, filling the power or particles into an inner
package first and then an outer
package and sealing the packages; and the using method of the gas antistaling agent comprises the following steps: 1, putting the objects which needs to be preserved into a sealable packing container; 2, removing the outer
package of the gas antistaling agent, and then putting the gas antistaling agent in the sealable packing container with the objects which needs to be preserved; and 3, sealing the packing container. The gas antistaling agent can effectively guarantee the freshness of flowers and fresh
fruits and vegetables, and has the advantages of low cost, convenient use and
low carbon emission.