. 2022 Dec 7;10:e14536. doi: 10.7717/peerj.14536

Table 3. L, a, b* and Hue values of mint leaves before and after treatments. Means with different letters indicate significant differences according to the Tukey’s HSD test (P < 0.05) (n = 9).

	L*	a*	b*	Hue value
Initial	39.03 ± 0.57c	−15.77 ± 0.52b	23.67 ± 0.57b	117.41
HCM1	40.88 ± 1.74b	−14.95 ± 0.27a	21.67 ± 1.08c	118.45
HCM2	42.62 ± 1.18a	−15.98 ± 0.70b	24.73 ± 1.80ab	116.52
HCM3	42.28 ± 0.64a	−16.25 ± 0.68bc	24.94 ± 0.70ab	116.76
HCM4	42.93 ± 0.56a	−16.77 ± 0.35c	25.75 ± 1.22a	116.75

Note:

HCM1, DWC+Microalgae+Aeration; HCM2, DWC+Microalgae; HCM3, DWC+Aeration; HCM4, DWC.

Table 3. L*, a*, b* and Hue values of mint leaves before and after treatments. Means with different letters indicate significant differences according to the Tukey’s HSD test (P < 0.05) (n = 9).