Low-Density Polyethylene Films Carrying ferula asafoetida Extract for Active Food Packaging: Thermal, Mechanical, Optical, Barrier, and Antifungal Properties

Table 4

Optical parameters () of control and active films.

Film sample	Concentration (%)	Light transmittance at 280 nm	Light transmittance at 600 nm	Transparency value
LDPE	0	^AB	^A	^AB
PE-Leaf	1	^D	^A	^B
	3	^E	^A	^AB
	5	^E	^A	^A
PE-Gum	1	^A	^A	^B
	3	^BC	^A	^AB
	5	^CD	^A	^A

Nonsimilar letters in each column indicate a significant difference according to Tukey’s test ().