1.5%. The presence of the enzyme system (LPOS or LPOSI) did not
affect O2 consumption. These results confirmed these obtained by
Cissé et al. (2012), who demonstrated that the diffusion of O2 could
be reduced by a chitosan film. The addition of the LPOS with or
without iodine did not alter the permeability of the film. Other
work has also highlighted the reduction of O2 permeability in
coated fruit by chitosan films; Thumula (2006) showed that
chitosan could reduce the oxygen consumption of tomatoes.