Table 3. Changes of color value in dried Grifola frondosa by different drying methods

Drying methods		Hunter value¹⁾
Drying methods		L^*	a^*	b^*
Control		62.23±1.35^2)a3)	2.67±1.05^a	15.63±0.98^a
Sun-drying		49.50±0.96^ab	3.29±0.54^a	15.77±0.66^a
Hot-air drying	40	37.37±3.95^b	2.35±0.45^a	10.28±0.02^bc
	50	50.43±2.25^ab	2.71±0.65^a	13.57±0.70^abc
	60	50.00±2.53^ab	2.69±0.51^a	13.6±0.62^abc
Low temperature vacuum drying	20	41.76±5.03^b	2.56±0.38^a	13.12±1.28^abc
	25	44.43±3.06^b	3.03±0.45^a	13.20±0.99^abc
	30	51.22±3.16^ab	2.51±0.92^a	14.76±0.56^ab
Heat pump dehumidifying drying	30	43.40±4.87^b	2.42±0.35^a	11.09±0.23^abc
	40	44.57±4.16^b	2.08±0.22^a	9.06±0.47^c
	50	41.03±1.72^b	3.08±0.20^a	13.26±0.11^abc
Freeze drying		46.13±0.98^b	2.20±0.06^a	10.31±0.29^bc

¹⁾L^*, lightness; a^*, redness; b^*, yellowness.
²⁾All values represent mean±SD.
³⁾Means with different letters (^a-c) with in a column are significantly different (p<0.05).