The invention discloses a preservation method which is suitable for storing
edible mushroom. According to the preservation method, a natural preservation agent
chitosan is dissolved in water to obtain an
aqueous solution, the
aqueous solution is sprayed on the surface of
edible mushroom to form a film, thereby postponing aging process, reducing loss of nutrients such as sugars,
organic acid,
vitamin C and the like caused by a
respiration, and inhibiting breeding of harmful
bacteria; moreover, in conjunction with the
modified atmosphere packaging (MAP) technology, two methods achieve synergistic effect, thereby achieving obvious
edible mushroom preservation effect. Contrast experiments shown that in comparison with edible
mushroom not subjected to any treatment,
pleurotus eryngii and Griflola frondosa stored by the preservation method have the advantages of bright surface, high freshness, no objectional
odor or brown
stain, low
nutrient loss and remarkable preservation effect. The preservation method is easy to popularize and apply, capable of prolonging
shelf life, thereby achieving a purpose of preservation and storing edible
mushroom for a long term.