The invention discloses a preparation method and a fresh keeping technology of a sweet cherry fresh keeping agent. The sweet cherry fresh keeping agent is prepared from the following raw materials in parts by weight: 10 to 20 parts of
litsea cubera extract, 3 to 7 parts of
phytic acid compounded
benzoic acid, 7 to 13 parts of a perfluoroalkyl
acrylic acid additive, 15 to 20 parts of
grape seed extract, 15 to 25 parts of wood vinegar, 15 to 25 parts of
mustard seed extract, 1 to 3 parts of vanillic
aldehyde, 0.1 to 0.2 part of thyme
camphor, 3 to 6 parts of
chitosan, 6 to 10 parts of a nano waterborne
adhesive, 3 to 6 parts of
polyvinyl pyrrolidone, 3 to 6 parts of
sodium alginate, 1 to 2 parts of
sucrose ester and 3 to 8 parts of
zinc diisobutyl
dithiocarbamate. According to the sweet cherry fresh keeping agent obtained through the preparation method, the
viscosity between membranes can be effectively reduced, the barrier property of the membranes on
water vapor and air is increased, the fresh keeping period is long, the sweet cherry fresh keeping agent is non-toxic and safe,
phytotoxicity cannot be brought, the effects of inhibiting pathogens and keeping the sensory quality are obtained, and the
shelf life of
sweet cherries is effectively prolonged.