Fig. 2.

Scores for surface colour, smell, taste, crunchiness and off-flavour for gluten-free oat biscuits stored at room temperature for 30 d, 60 d and 90 d under light and dark conditions in different packages with different oxygen transmission rates (OTR). Values labeled with a different lowercase letter are significantly different (p < 0.05) within samples (calculated between the control and the group of samples packed in the same type of package after 30 d, 60 d and 90 d). Legend: PET/CPP_34: polyethylene terephthalate/casting polypropylene, BOPP_40: biaxially oriented polypropylene, PVC_12: polyvinylchloride, BOPP/CPP_50: biaxially oriented polypropylene/casting polypropylene, PE/EVOH/PP_50: polyethylene/ethylene vinyl alcohol/polypropylene, 30 d: day 30; 60 d: day 60; 90 d: day 90