Antimicrobial, physical and mechanical properties of kudzu starch–chitosan composite films as a function of acid solvent types

Kudzu starch–chitosan composite films were prepared by combining 2% (w/v) gelatinized kudzu starch and 2% (w/v) chitosan solution together. Effects of acids (acetic acid, lactic acid and malic acid) to dissolve chitosan on properties of the composite films were investigated. Fourier-transform infrared spectra showed that kudzu starch and chitosan could form miscible films. X-ray diffraction data indicated that the crystalline of each single...