Table 1 Energy density of transmitted light as packaging films by intense pulsed light treatment

(unit: W/m²)
Wave Length			UV-C (220-280 nm)	UV-B (280-315 nm)	UV-A (315-400 nm)	RAD (400-1,050 nm)
Packaging film materials	PE	Control	3.567±0.0041)^a	4.054±0.022^a	1.659±0.005^ab	2.453±0.014^a
		30 μm	3.193±0.016^b	4.022±0.038^ab	1.661±0.010^ab	2.456±0.005^a
		40 μm	3.163±0.031^bc	3.995±0.021^ab	1.663±0.006^ab	2.455±0.017^a
		50 μm	3.108±0.047^c	3.984±0.036^b	1.654±0.004^a	2.455±0.022^a
		70 μm	2.947±0.052^d	4.019±0.044^ab	1.667±0.006^b	2.476±0.013^a

	PP	Control	3.567±0.004^a	4.054±0.022^a	1.659±0.005^a	2.453±0.014^ab
		30 μm	3.258±0.014^b	3.990±0.024^b	1.652±0.038^a	2.478±0.017^a
		40 μm	3.147±0.024^c	4.028±0.033^ab	1.657±0.008^a	2.458±0.008^ab
		50 μm	3.110±0.026^c	4.018±0.021^ab	1.665±0.004^a	2.470±0.016^a
		70 μm	3.003±0.047^d	4.015±0.044^ab	1.661±0.006^a	2.440±0.013^b

	OPP	Control	3.567±0.004^a	4.054±0.022^a	1.659±0.005^ab	2.453±0.014^a
		30 μm	3.200±0.031^b	4.015±0.025^a	1.662±0.004^a	2.455±0.015^a
		40 μm	3.168±0.037^b	4.006±0.024^a	1.652±0.002^b	2.471±0.013^a

	PET	Control	3.567±0.004^a	4.054±0.022^a	1.659±0.005^a	2.453±0.014^a
		100 μm	0.065±0.001^b	0.651±0.010^b	1.650±0.005^ab	2.446±0.010^a
		200 μm	0.057±0.002^c	0.517±0.010^c	1.648±0.004^b	2.444±0.008^a

¹⁾Mean±SD
^a-dMeans are significantly within the same column at p<0.05 by Duncan’s multiple range test.
Treatment condition: 1,000 V, 5 pps, distance: 1.5 cm