Moroccan Monofloral Bee Pollen: Botanical Origin, Physicochemical Characterization, and Antioxidant Activities

Table 5

The antioxidant content and activities of the ethanolic extract of monofloral bee pollens.

Sample	DPPH	RP	ABTS	TAC	Flavones and flavonols	Total phenolic
	IC50 (mg/ml)	EC50 (mg/ml)	IC50 (mg/ml)	(mg EAA/g)	(mg EQ/g)	(mg GAE/g)
P1	0.78 ± 0.012^d	0.133 ± 0.036^a	0.896 ± 0.051^f	3.984 ± 0.163^c	2.233 ± 0.275^c	13.730 ± 2.816^abc
P2	0.245 ± 0.009^b	0.380 ± 0.089^abc	0.190 ± 0.005^b	4.650 ± 0.532^c	1.626 ± 0.055^c	22.954 ± 3.112^ab
P3	0.283 ± 0.004^b	0.431 ± 0.026^abc	0.204 ± 0.006^b	9.693 ± 0.343^a	6.303 ± 0.374^a	27.985 ± 3.042^a
P4	0.450 ± 0.060^c	0.204 ± 0.127^ab	0.237 ± 0.047^b	6.103 ± 0.163^b	4.871 ± 0.110^b	22.744 ± 1.334^ab
P5	0.663 ± 0.086^d	0.731 ± 0.085^d	0.314 ± 0.009^bc	5.472 ± 0.335^b	1.011 ± 0.132^cd	18.342 ± 2.816^ab
P6	0.795 ± 0.016^d	0.790 ± 0.175^d	0.414 ± 0.023^d	4.140 ± 0.057^c	0.202 ± 0.044^f	32.387 ± 0.148^a
P7	0.832 ± 0.069^df	0.458 ± 0.198^abc	0.576 ± 0.045^e	6.827 ± 0.024^b	1.875 ± 0.363^c	8.070 ± 1.037^abc
P8	0.753 ± 0.075^d	0.238 ± 0.091^ab	0.597 ± 0.035^e	9.027 ± 0.090^a	0.918 ± 0.044^cde	28.824 ± 0.148^a
BHT	0.021 ± 0.01^a	—	—	—	—	—
Gallic acid	—	—	0.019 ± 0.001^a	—	—	—
Ascorbic acid	—	0.031 ± 0.070^a	—	—	—	—

Values in the same column followed by the same letter are not significantly different.