Evaluation of Antioxidant Capacity (ABTS and CUPRAC) and Total Phenolic Content (Folin-Ciocalteu) Assays of Selected Fruit, Vegetables, and Spices

Table 2

Range of AOX and TPC values of the samples in different solvent systems in comparison with the reported values after unit conversions.

Sample	Solvent	ABTS μmol AA E/g DW	^ɸABTS μmol AAE/g DW (reference)	CUPRAC μmol TE/g DW	^ɸCUPRAC μmol TE/g DW (reference)	FC-TPC μmol GAE/g DW	^ɸFC-TPC μmol GAE/g DW (reference)
Blueberry	Milli-Q water	65.7-73.3	134-231 [14]; 370.8 [15]; 269.8 [16]; 67.9 [17]; 212.9 [18]; 180.4 [19]	56.8-62.2	100-120 [20]	50.9-56.1	9.3-163.7 [21]; 107-272 [14]; 84.1 [15]; 114.9 [16]; 145.9 [17]; 55.5 [18]; 143-179 [20]; 179-206 [20]
	40% ethanol	131.1-157.9		148.3-168.5		72.4-85.4
	mßCD	209.2-240.9		152.0-172.4		57.9-73.5
Blackberry	Milli-Q water	174.3-192.2	683.1 [15]; 225.4 [16]; 155.6 [17]; 163.1 [18]	157.9-204.5	_	96.2-114.3	2.9-40.6 [21]; 106.5 [15]; 99.9 [16]; 413.9 [17]; 32.8 [18]
	40% ethanol	207.6-228.6		197.6-233.6		70.4-89.9
	mßCD	248.4-298.4		197.6-257.5		61.7-84.1
Raspberry	Milli-Q water	75.4-92.1	472.3 [15]; 297.5 [16]; 8.2 [17]	60.9-86.5	184 [22]	50.2-62.2	6.7-107.1 [21]; 34.0 [15]; 118.4 [16]; 184.5 [17]; 89 [22]
	40% ethanol	112.5-142.4		118.3-153.0		54.0-63.7
	mßCD	124.6-162.1		118.7-169.6		42.3-55.4
Cherry	Milli-Q water	80.2-96.4	92.5 [17]	65.2-94.2	_	56.3-70.1	136.2 [17]
	40% ethanol	94.7-135.7		109.4-126.3		52.7-67.7
	mßCD	108.9-141.4		113.3-135.8		36.9-57.7
Strawberry; MRF, 2020, 217-230	Milli-Q water	121.6-130.2	153.2 [17]; 63.1 [18]; 103.5 [19]	106.1-140.4	259 [22]	95.0-99.4	18.6-42.1 [21]; 500.8 [17]; 16.0 [18]; 129 [22]
	40% ethanol	147.4-149.2		144.6-153.0		82.8-90.2
	mßCD	210.3-225.0		146.5-155.4		70.3-79.1
Strawberry; MRF, 2020, 2017-139	Milli-Q water	138.6-163.8		130.5-131.8		89.4-111.5
	40% ethanol	176.4-183.6		283.7-304.8		89.1-99.8
	mßCD	235.5-243.5		259.7-289.8		86.7-91.9
Queen Garnet plum commercial FDP	Milli-Q water	215.2-223.1	140.8 [19]	201.0-220.2	182 [16]; 65-206 [23]	164.9-171.4	121 [22]; 25-62 [23]
	40% ethanol	286.1-296.1		336.4-364.3		163.3-165.2
	mßCD	352.3-366.2		265.2-334.6		144.6-148.5
Queen Garnet plum sibling ARF, 2020, 401-43	Milli-Q water	199.5-211.1		175.7-180.5		133.8-140.9
	40% ethanol	257.8-267.2		267.1-273.9		131.5-134.0
	mßCD	314.2-325.3		274.6-303.7		113.4-115.6
Green capsicum	Milli-Q water	41.1-62.5	29.4-295 [24]	35.2-74.2	93.6-98.8 [25]; 64.8-188.4 [24]; 65.7 [25]	61.8-86.0	63.7-94.5 [25]; 23.5-130.4 [24]
	40% ethanol	55.8-69.1		55.8-89.4		47.6-65.1
	mßCD	47.1-65.6		46.7-91.7		42.8-62.2
Yellow capsicum	Milli-Q water	103.3-117.7		101.8-110.1		114.2-128.1
	40% ethanol	100.8-110.6		95.1-114.8		74.6-89.8
	mßCD	114.2-123.1		86.1-106.5		101.8-109.1
Red capsicum	Milli-Q water	88.4-99.7		84.1-100.9		97.8-105.6
	40% ethanol	77.9-92.1		76.1-107.2		51.8-73.6
	mßCD	79.3-111.9		89.2-108.4		67.4-99.8
Pumpkin	Milli-Q water	19.7-26.2	4.5-7.2 [26]; 3.2-4.19 [26]	11.2-24.1	3.97-10.25 [27]	19.6-27.4	5.49-13.98 [26]; 5.48-10.98 [26]
	40% ethanol	21.5-26.0		11.2-18.3		12.9-17.5
	mßCD	18.4-23.1		9.1-19.0		5.8-8.9
Tomato	Milli-Q water	30.8-33.2	24.5 [28]	22.9-23.6	16.6 [28]	22.1-25.0	27.8 [25]; 27.1 [22]; 16.1 [28]
	40% ethanol	32.0-33.6		19.8-20.3		22.2-23.8
	mßCD	45.3-48.0		19.3-19.9		22.1-24.7
Papaya seeds	Milli-Q water	35.5-41.1	_	267.7-272.8	_	24.0-27.1	56.5-426.5 [29, 30]; 16.3 [31]; 66.5 [31]
	40% ethanol	32.1-34.0		277.9-283.0		15.8-16.8
	mßCD	33.4-33.9		207.8-226.5		21.3-26.2
Pomegranate seeds	Milli-Q water	10.6-11.0	_	13.7-19.5	239 [32]	3.0-9.5	82 [32]
	40% ethanol	16.8-17.8		17.0-18.6		9.1-9.4
	mßCD	15.3-16.4		17.2-20.3		4.5-4.8
Pomegranate husks	Milli-Q water	1381.9-1502.6	_	936.4-1126.3	2080-8090 [33]; 1118 [32]; 663-3428 [34]; 3756 [35]	477.2-517.3	623-1545 [33]; 423 [32]; 175-1060 [34]; 497 [36]
	40% ethanol	1532.8-1636.4		1440.2-1493.0		433.5-578.9
	mßCD	1905.8-2035.2		1230.2-1267.5		314.9-372.5
Turmeric powder	Milli-Q water	45.3-49.1	_	7.6-7.8	600-800 [37]	15.8-16.9	24.6 [38]; 4.5 [39]; 39.9 [40]; 4.0 [41]; 1011.6 [42]; 22.3 [42]
	40% ethanol	327.0-334.2		154.6-166.9		132.7-137.8
	mßCD	124.5-136.8		124.5-136.8		173.1-207.4
Ginger powder	Milli-Q water	37.7-46.9	130.6-398.6 [43]	32.2-34.7	229.3-487.0 [43]	5.6-7.7	490.2-794.8 [43]; 310.6-808.5 [44]; 13.5-99.2 [45]; 4.0 [39]
	40% ethanol	50.7-57.3		48.2-54.4		119.2-152.4
	mßCD	64.9-65.1		49.5-58.8		133.6-152.6
Cocoa powder	Milli-Q water	425.5-436.6	_	328.8-333.9	_	184.2-191.5	17-199 [46]
	40% ethanol	437.8-448.7		403.7-421.1		189.3-193.4
	mßCD	385.8-422.7		414.5-450.0		292.0-301.1
Green tea	Milli-Q water	2127.3-2148.8	_	1305.0-1326.0	1000 [2]; 50-4410 [47]; 1010 [48]	609.8-618.5	870-1481.3 [49]; 305.7 - 687.7 [50]; 336.6-605.5 [51]
	40% ethanol	1671.6-1675.3		1240.3-1257.9		555.6-560.7
	mßCD	1029.8-1122.2		772.2-813.4		579.1-630.1

^ɸReported values after unit conversions. Reference.