Table 3. Color values and hardness of Rehmanniae glutinosa dried at different temperature

		40°C	50°C	60°C	70°C	80°C
Hunter’s value	L	50.18±0.47¹⁾^a²⁾	48.83±0.86^a	45.09±0.88^b	44.03±0.26^b	44.29±0.37^b
	a	3.67±0.80^a	3.34±0.71^a	2.78±0.30^a	2.64±0.59^a	2.87±0.69^a
	b	14.91±2.11^a	15.03±2.33^a	12.96±0.14^a	12.10±1.18^a	12.54±0.61^a
Hardness (N)		14.47±1.90^c	44.47±2.48^a	41.77±2.78^a	22.43±2.44^b	18.40±4.70^bc

Values represent mean±SD of triplicate determinations.
Values with different letters are significantly different in a row (p<0.05).