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THE EFFECTS OF GLYCEROL ADDITION TO THE MECHANICAL PROPERTIES OF THERMOPLASTIC FILMS BASED ON JACKFRUIT SEED STARCH

Thermoplastic films based on 3 wt.% jackfruit seed starch were prepared using 5 to 30 wt.% glycerol as plasticizer via solution 
casting method. The aim of this study is to investigate the effect of glycerol on the mechanical properties of films. According to 
the analysis, the optimum tensile strength of the film was obtained at 4.40 MPa, which revealed that the native starch granules 
were converted into a continuous phase in the presence of glycerol as indicated by scanning electron microscopy. The 
incorporation of glycerol in starch also showed the formation of hydrogen bond evidenced by Fourier transform infrared 
spectroscopy.