The tensile strength and elongation of chitosan--based films are shown in Table 3. ANOVA indicatedthat the addition of cassava starch, gelatin and glycerolcaused significant differences in both tensile strengthand elongation of chitosan-based films (p<0.05). The ef-fect of cassava starch and gelatin on the tensile strengthis shown in Fig. 1, where it can be seen that when thecassava starch mass fraction ranges from 50–100 g per100 g of chitosan, tensile strength decreases as cassavastarch in the film solutions increases. However, the ten-
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