Table 3.

Color and rehydration ratio parameters of Cistanche slices under different drying conditions.

Drying Conditions	Color				Rehydration Ratio
	${\mathit{L}}^{*}$	${\mathit{a}}^{*}$	${\mathit{b}}^{*}$	$\mathbf{\Delta }\mathit{E}$	R (%)
Fresh sample	$78.22\pm {0.01}^{\mathrm{a}}$	$1.64\pm {0.20}^{\mathrm{g}}$	$28.21\pm {0.87}^{\mathrm{ab}}$
45 °C 75 mm 0.030 MPa 5 mm	$63.71\pm {0.67}^{\mathrm{d}}$	$4.65\pm {0.05}^{\mathrm{e}}$	$19.43\pm {0.24}^{\mathrm{bc}}$	$17.94\pm {0.66}^{\mathrm{b}}$	$2.65\pm {0.01}^{\mathrm{b}}$
55 °C 75 mm 0.030 MPa 5 mm	$66.51\pm {0.91}^{\mathrm{bc}}$	$6.06\pm {0.15}^{\mathrm{a}}$	$21.59\pm {0.37}^{\mathrm{a}}$	$15.11\pm {0.61}^{\mathrm{def}}$	$3.05\pm {0.09}^{\mathrm{a}}$
65 °C 75 mm 0.030 MPa 5 mm	$68.59\pm {0.78}^{\mathrm{b}}$	$5.12\pm {0.21}^{\mathrm{c}}$	$21.40\pm {0.16}^{\mathrm{bc}}$	$13.26\pm {0.54}^{\mathrm{fg}}$	$2.64\pm {0.02}^{\mathrm{b}}$
55 °C 65 mm 0.030 MPa 5 mm	$60.70\pm {0.60}^{\mathrm{e}}$	$6.22\pm {0.24}^{\mathrm{a}}$	$18.20\pm {0.49}^{\mathrm{bc}}$	$21.46\pm {0.65}^{\mathrm{a}}$	$2.03\pm {0.01}^{\mathrm{g}}$
55 °C 85 mm 0.030 MPa 5 mm	$60.53\pm {0.26}^{\mathrm{e}}$	$5.53\pm {0.20}^{\mathrm{b}}$	$17.68\pm {0.29}^{\mathrm{c}}$	$14.12\pm {0.05}^{\mathrm{efg}}$	$2.47\pm {0.05}^{\mathrm{c}\mathrm{d}}$
55 °C 75 mm 0.020 MPa 5 mm	$65.85\pm {0.46}^{\mathrm{cd}}$	$4.58\pm {0.55}^{\mathrm{ef}}$	$20.90\pm {0.28}^{\mathrm{bc}}$	$15.44\pm {0.64}^{\mathrm{cde}}$	$2.17\pm {0.11}^{\mathrm{fg}}$
55 °C 75 mm 0.040 MPa 5 mm	$64.59\pm {1.08}^{\mathrm{cd}}$	$4.81\pm {0.14}^{\mathrm{de}}$	$19.81\pm {0.33}^{\mathrm{bc}}$	$17.09\pm {0.99}^{\mathrm{bc}}$	$2.39\pm {0.04}^{\mathrm{de}}$
55 °C 75 mm 0.030 MPa 4 mm	$66.39\pm {1.13}^{\mathrm{bc}}$	$4.26\pm {0.28}^{\mathrm{f}}$	$20.13\pm {0.56}^{\mathrm{bc}}$	$15.34\pm {1.13}^{\mathrm{c}\mathrm{de}}$	$2.56\pm {0.04}^{\mathrm{bc}}$
55 °C 75 mm 0.030 MPa 6 mm	$67.04\pm {1.41}^{\mathrm{bc}}$	$6.08\pm {0.17}^{\mathrm{a}}$	$22.27\pm {0.46}^{\mathrm{abc}}$	$14.38\pm {1.37}^{\mathrm{egf}}$	$2.31\pm {0.02}^{\mathrm{ef}}$
Natural drying	$59.23\pm {1.34}^{\mathrm{e}}$	$3.24\pm {0.11}^{\mathrm{gf}}$	$24.04\pm {0.42}^{\mathrm{abc}}$	$16.53\pm {0.31}^{\mathrm{bcd}}$	$1.76\pm {0.01}^{\mathrm{h}}$
HA drying	$63.52\pm {0.63}^{\mathrm{d}}$	$4.75\pm {0.32}^{\mathrm{de}}$	$25.31\pm {0.74}^{\mathrm{abc}}$	$12.47\pm {0.56}^{\mathrm{g}}$	$2.08\pm {0.14}^{\mathrm{g}}$
RFV drying	$60.37\pm {1.27}^{\mathrm{e}}$	$5.04\pm {0.54}^{\mathrm{cd}}$	$20.08\pm {1.04}^{\mathrm{bc}}$	$13.74\pm {0.28}^{\mathrm{egf}}$	$2.24\pm {0.27}^{\mathrm{ef}}$

Note: A different lowercase letter after each column indicates a significant difference (p < 0.05).