TGA and DTGA curves for anchote starch films E30-film of 30%(w/w) 1-ethyl-3-methylimidazolium acetate, E40-film of 40%(w/w) 1-ethyl-3-methylimidazolium acetate, G30-film of 30%(w/w) glycerol, G40-film of 40%(w/w) glycerol, S30-film of 30%(w/w) sorbitol, S40-film of 40%(w/w), T30-film of 30%(w/w) triethylene glycol, and T40-film of 40%(w/w) triethylene glycol,