Table 2.
Color of burdock tea treated by steaming, drying, roasting methods

Processing conditions1)	Color
	Lightness (L)	Redness (a)	Yellowness (b)
	HDR	61.36±1.102)b3)	-1.06±0.04c	9.25±0.18a
SHD	64.35±0.67a	1.03±0.04a	-2.65±0.04c
SHDR	57.36±1.31c	-0.69±0.06b	5.58±0.12b

Abbreviation: HDR; Hot air drying and roasting, SHD; Steaming and hot air drying, SHDR; steaming and hot air drying and roasting
Values are means standard deviations of triplicate determinations
Different superscripts within a column (a-c) indicate significant differences (p<0.05).