Cover: Cover: The 10th CBPol meeting tool place in Iguassu Falls (Brazil) in October 2009. The manuscript is taken from the article by A.M.M. Gomes et. al. p. 220ff., and shows MS/CH/PVA blends with variation of starch, chitosan and PVA content subjected to degradation by 12 (A) and 16 days (B).