Table 3. Colour readings of the fruit samples before (start) and after 7 days (final) of storage in the dark (control) or under LED light irradiation (590 nm).

Colour parameter	Sampling point	Apple			Tomato			Red bell pepper
		Control	LED light		Control	LED light		Control	LED light
L*	Start	60.06±1.64	59.61±1.71		45.37±0.99	45.30±0.78		33.53±1.23	33.53±1.23
	Final	60.16±1.72	59.95±1.98		44.15±1.13	44.45±0.98		32.52±1.31	33.41±1.11
a*	Start	–17.68±2.42	–19.05±0.36		16.14±1.08	15.17±1.60		23.83±1.20	23.83±1.20
	Final	–17.49±2.42	–18.67±0.65		17.86±0.62	16.93±1.36		24.37±1.59	25.66±1.42
b*	Start	41.08±2.03	41.63±1.38		28.03±0.83	28.76±1.76		13.13±1.03	13.13±1.03
	Final	41.51±1.75	43.06±1.89		28.07±0.85	28.74±1.54		13.86±1.46	14.66±0.79

Data are mean value±standard deviation (N=12). LED=light-emitting diode