Abstract
In this study, corn starch was taken as the raw material and its filming property was studied through single-factor experiments and orthogonal experiment. The results showed that there were significant effects on properties of the corn starch films under different corn starch concentration, glycerol concentration, CMC-Na concentration and pH value of coating liquid. Referring to the effects on properties of corn starch films, the most important factor was the glycerol concentration, the following factors were the pH value of the coating liquid, the CMC-Na concentration and the corn starch concentration. The optimum filming condition was 5.5% corn starch, 1.0% glycerol, 0.15% CMC-Na and pH 6.0-6.9 for the coating liquid of film-forming.
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