Table 6. Changes in color of apple slices treated with paper mulberry leaf extracts

Samples	0 h	After 24 h		After 48 h
Samples	L¹⁾	ΔL²⁾	ΔE³⁾	ΔL	ΔE
Control	79.37	4.50±0.22^ab4)	10.57±1.49^a	6.29±0.10	7.61±0.39^a
PME70	77.76	2.36±1.29^b	5.96±2.06^b	3.82±1.89	4.69±1.90^b
Green tea extract	76.91	2.99±1.46^ab	6.51±0.41^b	3.65±0.84	4.61±2.78^b
L-ascorbic acid	77.45	4.81±1.08^a	10.83±1.53^a	6.33±3.06	7.99±0.78^a

L, lightness.
ΔL, degree of lightness of change.
ΔE, degree of color of change.
All values are mean±SD (n≥3), and different superscripts (^a,b) in the same column are significantly different at p<0.05 by Duncan’s multiple range test.
PME70, the 70% ethanol extract.