With fresh-cut Le-ping melon as test materials,using different blanching temperature and time processing of fresh- cut Le-ping melon,as determined by sensory evaluation,vitamin C content and other indicators,thus obtained the optimum blanching temperature and time combination.On this basis,the combination of the food grade chitosan(1.0%,1.5%)for coating film,got the best fresh method.The results showed that the optimum combination was blanching 60 ℃ 2 min,the best combination of blanching +1.5% chitosan wor...