Table 3.

L* values of gluten-free oat biscuits packed in different films and stored in light and darkness conditions up to 90 days

Storage		PET/CPP_34	BOPP_40	PVC_12	BOPP/CPP_50	PE/EVOH/PP_50
Period	Condition
Fresh samples		38.21 ± 0.09C	38.21 ± 0.09C	38.21 ± 0.09C	38.21 ± 0.09C	38.21 ± 0.09C
30 d	L	38.31 ± 0.10bcC	38.21 ± 0.08dC	38.45 ± 0.07aC	38.33 ± 0.05bC	38.24 ± 0.02cdC
60 d		38.84 ± 0.05cB	38.74 ± 0.04 dB	40.09 ± 0.09aB	39.01 ± 0.07bB	38.45 ± 0.03eB
90 d		39.34 ± 0.14dA	39.65 ± 0.05cA	41.33 ± 0.03aA	39.90 ± 0.05bA	38.72 ± 0.06eA
30 d	D	38.23 ± 0.11aC	38.23 ± 0.09aC	38.29 ± 0.05aC	38.21 ± 0.09aC	38.25 ± 0.03aC
60 d		38.40 ± 0.15bcB	38.43 ± 0.06bcB	38.64 ± 0.07aB	38.47 ± 0.07bB	38.35 ± 0.03cB
90 d		38.88 ± 0.10cA	39.02 ± 0.11bA	39.13 ± 0.05aA	38.85 ± 0.03cA	38.42 ± 0.05dA

The values are expressed as mean ± SD, n = 10

a–e: Values followed by the same superscript letter in a row are not significantly different (p > 0.05) between different samples at the same day of storage

A–C: Values followed by different superscript letter within columns for the same condition storage are significantly different (p < 0.05)

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

L light, D dark