Antioxidant, Cytotoxic, and Toxic Activities of Propolis from Two Native Bees in Brazil: Scaptotrigona depilis and Melipona quadrifasciata anthidioides
Table 2
Compounds identified in polar fraction of the EEPs from Scaptotrigona depilis and Melipona quadrifasciata anthidioides by HPLC.
Peak
Retention time (min)
Compounds
Molecular mass
EEP-S (mg/g)
EEP-M (mg/g)
1
7.95
Vanilic acid
168
—
5.9 ± 0.1
2
8.64
Caffeic acid
180
—
6.1 ± 0.2
3
10.44
Vanillin
152
5.5 ± 0.2
5.7 ± 0.1
4
13.48
p-Coumaric acid
164
6.3 ± 0.2
6.1 ± 0.2
5
17.28
Ferulic acid
194
5.4 ± 0.2
6.1 ± 0.2
6
19.99
Benzoic acid
122
6.8 ± 0.2
6.9 ± 0.1
7
35.33
Quercetin
302
—
9.9 ± 0.2
8
36.68
Luteolin
286
—
1.3 ± 0.1
9
40.01
Cinnamic acid
148
13.4 ± 0.4
13.2 ± 0.3
10
42.62
Apigenin
270
—
15.6 ± 0.4
ompound was confirmed by comparison of standard. Data are shown as media ± standard deviation.