The invention discloses a nano-composite packaging material capable of inhibiting generation of endogenous
formaldehyde in
lentinula edodes.The nano-composite packaging material is prepared with the method including the following steps that, by
mass, 15-20% of nano-composite
powder, 45-50% of low-density
polyethylene, 20-25% of low-density linear
polyethylene, 5-10% of a dispersing agent and 3-5% of
wax are taken and mixed at a high speed, the mixture is kneaded and extruded by a double-screw extruder, cooling
sizing is carried out in a cold water trough, then
cutting is performed, and nanometer
masterbatch is obtained; by
mass, 6-10% of the nanometer
masterbatch, 8-12% of anti-
fogging agent
masterbatch and 80-85% of low-density linear
polyethylene are taken and mixed evenly, the mixture is subjected to
casting through a double-layer co-
extrusion casting machine, and a nanometer
preservative film with the thickness of 40 micrometers is formed.The nano-composite packaging material is used for packaging
lentinula edodes, a high-temperature and low-
oxygen environment is formed in the storage process of
lentinula edodes, generation of endogenous
formaldehyde in lentinula edodes is effectively inhibited, the storage quality of picked lentinula edodes is well maintained, and the
quality safety of lentinula edodes is effectively controlled.