Table 1.
Color parameters (L*, a*, b*) and total color difference (∆E) of pullulan film with propolis extract.
| Film Sample | L* | a* | b* | ΔE |
|---|---|---|---|---|
| Control 1 | 90.98 ± 0.41d | −0.47 ± 0.06 a | 0.87 ± 0.04 a | 1.28 ± 0.39 a |
| E1/3 | 90.52 ± 0.30 cd | −0.94 ± 0.05 bc | 3.17 ± 0.41 bc | 3.11 ± 0.45 bc |
| E1/5 | 89.45 ± 0.55 ab | −1.52 ± 0.11 d | 5.72 ± 0.60 d | 8.12 ± 1.39 e |
| E1/10 | 89.67 ± 0.32 ab | −2.05 ± 0.28 e | 8.75 ± 1.09 e | 9.16 ± 0.46 e |
| E2/3 | 90.95 ± 0.25 d | −0.79 ± 0.04 b | 2.45 ± 0.16 b | 2.26 ± 0.24 ab |
| E2/5 | 90.54 ± 0.26 cd | −1.08 ± 0.06 c | 3.65 ± 0.26 c | 3.53 ± 0.25 c |
| E2/10 | 89.32 ± 0.30 a | −1.73 ± 0.24 de | 7.78 ± 0.76 e | 7.84 ± 0.85 e |
| E3/3 | 91.01 ± 0.15 d | −0.82 ± 0.04 b | 2.41 ± 0.19 b | 2.20 ± 0.22 ab |
| E3/5 | 90.46 ± 0.29 cd | −0.93 ± 0.17 bc | 3.86 ± 0.74 c | 3.73 ± 0.77 c |
| E3/10 | 90.04 ± 0.42 bc | −1.45 ± 0.15 d | 6.43 ± 0.87 d | 6.29 ± 0.95 d |
1 Control—pullulan film without propolis extract, E1—pullulan films with propolis extract from Bochnia County, E2—pullulan films with propolis extract from Siedlce County, E3—pullulan films with propolis extract from Ełk County. The superscripts different letters in a column indicate significant differences (p < 0.05).