for control CH films, the fourth stage of weight loss (w4) disappeared. This fourth stage in films containing either CEO or CWO was possibly associated with the loss of thermally stable components in the essential oils incorporated into the film matrix [47].The fifth stage of weight loss (w5= 7.73–12.49%) appeared at Td5 of 465–480◦C, and was most likely due to the presence of highly stable substances in the film containing essential oils or Tween 80 that might possess higher heat resistance than CEO or CWO. Overall,films with CWO had lower residual mass than other films, consistent with their weaker film network, as indicated by the lowered TS. Amongst all films, those containing 30% CEO had the highest residual. TGA study clearly showed that CEO and CWO at various concentrations led to different thermal stability of the resulting CH films.