Table 3.

pH, soluble solids content, titratable acidity, and total colour differences of untreated (CTRL) and heat-treated (HT) red fresh vegetables smoothies (R1 and R2) stored at 5 and 20 °C (n = 5 ± SD)

Days of storage		R1				R2
		pH	SSC (° Brix)	TA ( g citric acid 100 mL−1)	ΔE	pH	SSC (° Brix)	TA ( g citric acid 100 mL−1)	ΔE
0	CTRL5C	$4.36\pm {0.02}_{\mathrm{b}\mathrm{c}}^{\mathrm{A}}$	$8.37\pm {0.06}_{\mathrm{a}}^{\mathrm{A}}$	$0.25\pm {0.01}_{\mathrm{b}\mathrm{c}}^{\mathrm{B}}$	–	$4.39\pm {0.03}_{\mathrm{a}}^{\mathrm{A}}$	$7.07\pm {0.06}_{\mathrm{b}}^{\mathrm{B}}$	$0.22\pm {0.01}_{\mathrm{c}}^{\mathrm{B}}$	–
	HT5C	$4.32\pm {0.03}_{\mathrm{cd}}^{\mathrm{A}}$	$8.37\pm {0.25}_{\mathrm{a}}^{\mathrm{A}}$	$0.30\pm {0.01}_{\mathrm{a}}^{\mathrm{B}}$	–	$4.36\pm {0.04}_{\mathrm{c}}^{\mathrm{A}}$	$8.43\pm {0.31}_{\mathrm{a}}^{\mathrm{A}}$	$0.21\pm {0.01}_{\mathrm{c}}^{\mathrm{B}}$	–
	HT20C	$4.31\pm {0.03}_{\mathrm{ab}}^{\mathrm{A}}$	$8.37\pm {0.40}_{\mathrm{a}}^{\mathrm{A}}$	$0.36\pm {0.02}_{\mathrm{a}}^{\mathrm{A}}$	–	$4.35\pm {0.04}_{\mathrm{ab}}^{\mathrm{A}}$	$8.43\pm {0.45}_{\mathrm{a}}^{\mathrm{A}}$	$0.28\pm {0.03}_{\mathrm{ab}}^{\mathrm{A}}$	–
7	CTRL5C	$4.29\pm {0.03}_{\mathrm{c}}^{\mathrm{AB}}$	$8.13\pm {0.15}_{\mathrm{a}}^{\mathrm{A}}$	$0.30\pm {0.02}_{\mathrm{ab}}^{\mathrm{A}}$	$19.77\pm {0.85}_{\mathrm{e}}^{\mathrm{A}}$	$4.28\pm {0.02}_{\mathrm{d}}^{\mathrm{B}}$	$7.67\pm {0.29}_{\mathrm{b}}^{\mathrm{B}}$	$0.24\pm {0.02}_{\mathrm{b}\mathrm{c}}^{\mathrm{A}}$	$19.01\pm {0.59}_{\mathrm{d}}^{\mathrm{A}}$
	HT5C	$4.24\pm {0.04}_{\mathrm{d}}^{\mathrm{B}}$	$8.43\pm {0.29}_{\mathrm{a}}^{\mathrm{A}}$	$0.30\pm {0.02}_{\mathrm{a}}^{\mathrm{A}}$	$4.59\pm {1.42}_{\mathrm{e}}^{\mathrm{C}}$	$4.34\pm {0.04}_{\mathrm{c}}^{\mathrm{AB}}$	$8.50\pm {0.20}_{\mathrm{a}}^{\mathrm{A}}$	$0.27\pm {0.02}_{\mathrm{ab}}^{\mathrm{A}}$	$8.62\pm {1.20}_{\mathrm{e}}^{\mathrm{A}}$
	HT20C	$4.34\pm {0.02}_{\mathrm{a}}^{\mathrm{B}}$	$8.10\pm {0.17}_{\mathrm{a}}^{\mathrm{A}}$	$0.32\pm {0.03}_{\mathrm{ab}}^{\mathrm{A}}$	$10.60\pm {0.81}_{\mathrm{d}}^{\mathrm{B}}$	$4.38\pm {0.04}_{\mathrm{ab}}^{\mathrm{A}}$	$7.87\pm {0.42}_{\mathrm{a}}^{\mathrm{AB}}$	$0.26\pm {0.02}_{\mathrm{a}\mathrm{b}\mathrm{c}}^{\mathrm{A}}$	$8.75\pm {1.23}_{\mathrm{d}}^{\mathrm{A}}$
14	CTRL5C	$4.29\pm {0.03}_{\mathrm{c}}^{\mathrm{AB}}$	$8.57\pm {0.06}_{\mathrm{a}}^{\mathrm{A}}$	$0.31\pm {0.01}_{\mathrm{a}}^{\mathrm{A}}$	$22.79\pm {0.11}_{\mathrm{c}}^{\mathrm{A}}$	$4.29\pm {0.02}_{\mathrm{cd}}^{\mathrm{B}}$	$7.57\pm {0.21}_{\mathrm{b}}^{\mathrm{B}}$	$0.26\pm {0.01}_{\mathrm{b}\mathrm{c}}^{\mathrm{A}}$	$22.89\pm {0.35}_{\mathrm{b}}^{\mathrm{A}}$
	HT5C	$4.32\pm {0.02}_{\mathrm{cd}}^{\mathrm{A}}$	$8.57\pm {0.06}_{\mathrm{a}}^{\mathrm{A}}$	$0.25\pm {0.03}_{\mathrm{a}}^{\mathrm{B}}$	$6.58\pm {1.09}_{\mathrm{e}}^{\mathrm{C}}$	$4.37\pm {0.04}_{\mathrm{b}\mathrm{c}}^{\mathrm{A}}$	$8.50\pm {0.30}_{\mathrm{a}}^{\mathrm{A}}$	$0.26\pm {0.02}_{\mathrm{ab}}^{\mathrm{B}}$	$12.18\pm {1.88}_{\mathrm{d}\mathrm{e}}^{\mathrm{B}}$
	HT20C	$4.24\pm {0.04}_{\mathrm{b}}^{\mathrm{B}}$	$8.20\pm {0.17}_{\mathrm{a}}^{\mathrm{A}}$	$0.29\pm {0.00}_{\mathrm{b}\mathrm{c}}^{\mathrm{AB}}$	$12.36\pm {0.79}_{\mathrm{cd}}^{\mathrm{B}}$	$4.31\pm {0.03}_{\mathrm{b}}^{\mathrm{AB}}$	$8.03\pm {0.15}_{\mathrm{a}}^{\mathrm{AB}}$	$0.29\pm {0.00}_{\mathrm{a}}^{\mathrm{AB}}$	$10.98\pm {1.35}_{\mathrm{d}}^{\mathrm{AB}}$
21	CTRL5C	$4.41\pm {0.04}_{\mathrm{b}}^{\mathrm{A}}$	$8.20\pm {0.30}_{\mathrm{a}}^{\mathrm{A}}$	$0.34\pm {0.02}_{\mathrm{a}}^{\mathrm{A}}$	$24.00\pm {0.25}_{\mathrm{c}}^{\mathrm{A}}$	$4.36\pm {0.03}_{\mathrm{a}\mathrm{b}\mathrm{c}}^{\mathrm{A}}$	$7.57\pm {0.40}_{\mathrm{b}}^{\mathrm{A}}$	$0.26\pm {0.02}_{\mathrm{b}}^{\mathrm{A}}$	$24.63\pm {0.24}_{\mathrm{b}}^{\mathrm{A}}$
	HT5C	$4.31\pm {0.02}_{\mathrm{cd}}^{\mathrm{B}}$	$8.23\pm {0.35}_{\mathrm{a}}^{\mathrm{A}}$	$0.30\pm {0.03}_{\mathrm{a}}^{\mathrm{A}}$	$11.19\pm {1.06}_{\mathrm{d}}^{\mathrm{C}}$	$4.35\pm {0.01}_{\mathrm{c}}^{\mathrm{A}}$	$8.17\pm {0.15}_{\mathrm{a}}^{\mathrm{A}}$	$0.28\pm {0.02}_{\mathrm{a}}^{\mathrm{A}}$	$15.97\pm {1.51}_{\mathrm{cd}}^{\mathrm{A}}$
	HT20C	$4.28\pm {0.03}_{\mathrm{ab}}^{\mathrm{B}}$	$8.40\pm {0.00}_{\mathrm{a}}^{\mathrm{A}}$	$0.29\pm {0.02}_{\mathrm{a}\mathrm{b}\mathrm{c}}^{\mathrm{A}}$	$15.02\pm {1.10}_{\mathrm{c}}^{\mathrm{B}}$	$4.33\pm {0.03}_{\mathrm{b}}^{\mathrm{A}}$	$8.27\pm {0.49}_{\mathrm{a}}^{\mathrm{A}}$	$0.27\pm {0.03}_{\mathrm{ab}}^{\mathrm{A}}$	$14.84\pm {0.91}_{\mathrm{c}}^{\mathrm{A}}$
28	CTRL5C	$4.41\pm {0.02}_{\mathrm{b}}^{\mathrm{A}}$	$8.20\pm {0.10}_{\mathrm{a}}^{\mathrm{A}}$	$0.24\pm {0.01}_{\mathrm{c}}^{\mathrm{A}}$	$29.48\pm {0.44}_{\mathrm{a}}^{\mathrm{A}}$	$4.31\pm {0.04}_{\mathrm{b}\mathrm{c}\mathrm{d}}^{\mathrm{A}}$	$7.40\pm {0.30}_{\mathrm{b}}^{\mathrm{B}}$	$0.34\pm {0.01}_{\mathrm{a}}^{\mathrm{A}}$	$30.6\pm {0.59}_{\mathrm{a}}^{\mathrm{A}}$
	HT5C	$4.35\pm {0.03}_{\mathrm{b}\mathrm{c}}^{\mathrm{B}}$	$8.37\pm {0.23}_{\mathrm{a}}^{\mathrm{A}}$	$0.24\pm {0.02}_{\mathrm{a}}^{\mathrm{A}}$	$15.38\pm {1.54}_{\mathrm{c}}^{\mathrm{C}}$	$4.33\pm {0.04}_{\mathrm{c}}^{\mathrm{A}}$	$8.30\pm {0.36}_{\mathrm{a}}^{\mathrm{A}}$	$0.20\pm {0.01}_{\mathrm{c}}^{\mathrm{A}}$	$16.23\pm {1.06}_{\mathrm{cd}}^{\mathrm{A}}$
	HT20C	$4.30\pm {0.02}_{\mathrm{ab}}^{\mathrm{B}}$	$8.23\pm {0.32}_{\mathrm{a}}^{\mathrm{A}}$	$0.25\pm {0.01}_{\mathrm{c}}^{\mathrm{A}}$	$20.10\pm {1.23}_{\mathrm{b}}^{\mathrm{B}}$	$4.36\pm {0.03}_{\mathrm{ab}}^{\mathrm{A}}$	$7.93\pm {0.15}_{\mathrm{a}}^{\mathrm{AB}}$	$0.21\pm {0.00}_{\mathrm{cd}}^{\mathrm{A}}$	$19.87\pm {1.10}_{\mathrm{b}}^{\mathrm{A}}$
35	HT5C	$4.44\pm {0.04}_{\mathrm{a}}^{\mathrm{A}}$	$8.67\pm {0.06}_{\mathrm{a}}^{\mathrm{A}}$	$0.27\pm {0.02}_{\mathrm{a}}^{\mathrm{A}}$	$19.43\pm {0.71}_{\mathrm{b}}^{\mathrm{B}}$	$4.46\pm {0.04}_{\mathrm{ab}}^{\mathrm{A}}$	$8.53\pm {0.49}_{\mathrm{a}}^{\mathrm{A}}$	$0.23\pm {0.01}_{\mathrm{a}\mathrm{b}\mathrm{c}}^{\mathrm{A}}$	$19.39\pm {0.74}_{\mathrm{b}\mathrm{c}}^{\mathrm{A}}$
	HT20C	$4.34\pm {0.04}_{\mathrm{a}}^{\mathrm{B}}$	$8.23\pm {0.25}_{\mathrm{a}}^{\mathrm{B}}$	$0.26\pm {0.02}_{\mathrm{b}\mathrm{c}}^{\mathrm{A}}$	$23.35\pm {1.85}_{\mathrm{a}}^{\mathrm{A}}$	$4.35\pm {0.04}_{\mathrm{ab}}^{\mathrm{B}}$	$8.57\pm {0.49}_{\mathrm{a}}^{\mathrm{A}}$	$0.21\pm {0.02}_{\mathrm{b}\mathrm{c}\mathrm{d}}^{\mathrm{A}}$	$24.27\pm {0.90}_{\mathrm{a}}^{\mathrm{A}}$
40	HT5C	$4.41\pm {0.03}_{\mathrm{ab}}^{\mathrm{A}}$	$8.37\pm {0.12}_{\mathrm{a}}^{\mathrm{A}}$	$0.28\pm {0.03}_{\mathrm{a}}^{\mathrm{A}}$	$19.51\pm {0.88}_{\mathrm{b}}^{\mathrm{B}}$	$4.49\pm {0.03}_{\mathrm{a}}^{\mathrm{A}}$	$8.57\pm {0.42}_{\mathrm{a}}^{\mathrm{A}}$	$0.21\pm {0.02}_{\mathrm{c}}^{\mathrm{A}}$	$21.21\pm {0.77}_{\mathrm{b}}^{\mathrm{A}}$
	HT20C	$4.32\pm {0.04}_{\mathrm{ab}}^{\mathrm{B}}$	$8.37\pm {0.15}_{\mathrm{a}}^{\mathrm{A}}$	$0.26\pm {0.03}_{\mathrm{b}\mathrm{c}}^{\mathrm{A}}$	$23.73\pm {1.00}_{\mathrm{a}}^{\mathrm{A}}$	$4.42\pm {0.01}_{\mathrm{a}}^{\mathrm{B}}$	$8.53\pm {0.15}_{\mathrm{a}}^{\mathrm{A}}$	$0.19\pm {0.02}_{\mathrm{d}}^{\mathrm{A}}$	$26.14\pm {0.36}_{\mathrm{a}}^{\mathrm{A}}$
49	HT5C	$4.41\pm {0.01}_{\mathrm{ab}}^{-}$	$8.43\pm {0.23}_{\mathrm{a}}^{-}$	$0.28\pm {0.02}_{\mathrm{a}}^{-}$	$20.11\pm {0.58}_{\mathrm{b}}^{-}$	$4.48\pm {0.03}_{\mathrm{a}}^{-}$	$8.47\pm {0.42}_{\mathrm{a}}^{-}$	$0.27\pm {0.01}_{\mathrm{ab}}^{-}$	$22.00\pm {0.93}_{\mathrm{b}}^{-}$
58	HT5C	$4.37\pm {0.04}_{\mathrm{a}\mathrm{b}\mathrm{c}}^{-}$	$8.40\pm {0.10}_{\mathrm{a}}^{-}$	$0.31\pm {0.03}_{\mathrm{a}}^{-}$	$39.51\pm {1.50}_{\mathrm{a}}^{-}$	$4.43\pm {0.02}_{\mathrm{a}\mathrm{b}\mathrm{c}}^{-}$	$7.97\pm {0.21}_{\mathrm{a}}^{-}$	$0.23\pm {0.02}_{\mathrm{b}\mathrm{c}}^{-}$	$34.73\pm {3.10}_{\mathrm{a}}^{-}$

Different capital letters denote significant differences (P ≤ 0.05) among treatments for the same sampling day and smoothie. Different lowercase letters denote significant differences (P ≤ 0.05) among sampling days for the same treatment and smoothie