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. 2022 Jul 8;27(14):4373. doi: 10.3390/molecules27144373

Table 2.

Essential oils of the Amazon and their antioxidant activities.

Species
(Plants Part)		 Family Method Results References
Aniba parviflora
(Leaves)		 Lauraceae DPPH TEAC = 90.1–287.9 mg TE/mL [18]
A. parviflora
(Branches)		 Lauraceae DPPH TEAC = 94.1–358.4 mg TE/mL [18]
A. rosaeodora
(Aerial parts)		 Lauraceae ABTS EC50 = 15.46 µg/mL [19]
Endlicheria arenosa
(Leaves)		 Lauraceae DPPH TEAC = 334.1 ± 41.6 mg TE/mL [28]
E. arenosa
(Twigs)		 Lauraceae DPPH TEAC = 252.6 ± 24.4 mg TEmL [28]
Eugenia egensis
(Aerial parts)		 Myrtaceae DPPH TEAC = 216.5 ± 11.6 mg TE/mL [30]
E. flavescens
(Aerial parts)		 Myrtaceae DPPH TEAC = 122.6 ± 6.8 mg TE/mL [30]
E. patrisii
(Aerial parts)		 Myrtaceae DPPH TEAC = 111.2 ± 12.4 mg TE/mL [30]
E. patrisii
(Leaves)		 Myrtaceae DPPH Inhibition = 28.9 ± 4.8% [32]
E. patrisii
(Dry leaves)		 Myrtaceae DPPH Inhibition = 99.0 ± 0.099% (Specimen A)
Inhibition = 204.0 ± 0.877% (Specimen B)		 [31]
ABTS Inhibition = 31.4 ± 0.1% (Specimen A)
Inhibition = 17.9 ± 0.069% (Specimen B)
E. punicifolia
(Dry leaves)		 Myrtaceae DPPH Inhibition = 408.0 ± 0.10% (Specimen A)
Inhibition = 285.0 ± 0.028% (Specimen B)		 [31]
ABTS Inhibition = 9.5 ± 0.034% (Specimen A)
Inhibition = 37.7 ± 0.035% (Specimen B)
E. uniflora
(Leaves)		 Myrtaceae DPPH Inhibition = 42.6 ± 0.3 to 64.2 ± 0.3% [34]
E. uniflora
(Dry leaves)		 Myrtaceae DPPH Inhibition = 30.3 ± 3.3 to 40.6 ± 1.9% [48]
β-Carotene Inhibition = 153.5 ± 16.5 to 228.3 ± 19.2%
MTT Inhibition = 10.8 ± 3.4 to 26.3 ± 1.2%
Hedychium coronarium
(Rhizome)		 Zingiberaceae DPPH IC50 = 9.04 ± 0.55 mg/mL [37]
ABTS IC50 = 2.87 ± 0.17 mg/mL
Lippia thymoides
(Fresh Leaves)		 Verbenaceae DPPH Inhibition = 89.97 ± 0.31% [42]
L. thymoides
(Dry leaves)		 Verbenaceae DPPH Inhibition = 63.53 b ± 5.04–73.63 ± 2.09% [42]
Mentha piperita
(Dry leaves)		 Lamiaceae DPPH AA = 79.9 ± 1.6% [44]
Myrcia splendens
(Leaves)		 Myrtaceae DPPH Inhibition = 28.4 ± 7.1% [32]
M. sylvatica
(Leaves)		 Myrtaceae DPPH Inhibition = 18.5 ± 3.5% [32]
M. tomentosa
(Dry leaves)		 Myrtaceae DPPH Inhibition = 213.0 ± 0.905% (Specimen A)
Inhibition = 208.5 ± 0.940% (Specimen B)		 [31]
ABTS Inhibition = 53.6 ± 0.150% (Specimen A)
Inhibition = 0.333 ± 0.247% (Specimen B)
Ocimum campechianum
(leaves and stems and inflorescences)		 Lamiaceae DPPH Inhibition = 36.0% (leaves and stems)
Inhibition = 41.6% (inflorescences)		 [48]
TEAC = 58.5 mgTE/mL (leaves and stems)
TEAC = 68.4 mgTE/mL (inflorescences)
Piper aequale
(Aerial parts)		 Piperaceae DPPH TEAC = 280.9 ± 22.2 mg TE/mL [52]
P. aleyreanum
(Aerial parts)		 Piperaceae DPPH TEAC = 412.2 ± 9.5 mg TE/mL [12]
P. anonifolium
(Aerial parts)		 Piperaceae DPPH TEAC = 148.6 ± 26.9 mg TE/mL [12]
P. augustum
(Leaves)		 Piperaceae DPPH IC50 = 6.17 ± 0.33 mg/mL [37]
ABTS IC50 = 2.16 ± 0.20 mg/mL
P. brachypetiolatum
(Fresh Leaves)		 Piperaceae DPPH EC50 = 64.8 ± 3.8 µg/mL [56]
ABTS EC50 = 159.7 ± 8.3 µg/mL
P. glandulosissimum
(Fresh Leaves)		 Piperaceae DPPH EC50 = 104.4 ± 6.4 µg/mL [56]
ABTS EC50 = 200.9 ± 6.4 µg/mL
P. hispidum
(Aerial parts)		 Piperaceae DPPH TEAC = 303.1 ± 49.2 mg TE/mL [12]
P. leticianum
(Leaves)		 Piperaceae DPPH IC50 = 4.26 ± 0.11 mg/mL [37]
ABTS IC50 = 2.65 ± 0.25 mg/mL
P. madeiranum
(Fresh Leaves)		 Piperaceae DPPH EC50 = 66.8 ± 5.2 µg/mL [56]
ABTS EC50 = 242.6 ± 6.8 µg/mL
P. mollipilosum
(Fresh Leaves)		 Piperaceae DPPH EC50 = 79.0 ± 4.9 µg/mL [56]
ABTS EC50 = 280.5 ± 6.6 µg/mL
Psidium guajava
(Leaves)		 Myrtaceae DPPH Inhibition = 38.6 ± 7.0% [32]
P. guineense Myrtaceae DPPH Inhibition = 11.5 ± 2.0% (Pgui-1)
Inhibition = 27.7 ± 2.3% (Pgui-2)		 [32]
Siparuna aspera
(Leaves)		 Siparunaceae DPPH IC50 = 20.70 ± 0.80 mg/mL [37]
ABTS IC50 = 1.12 ± 0.04 mg/mL
S. macrotepala
(Leaves)		 Siparunaceae DPPH IC50 = 29.37 ± 1.15 mg/mL [37]
ABTS IC50 = 0.80 ± 0.03 mg/mL

DPPH, 2,2-Diphenyl-1-picrylhydrazyl; ABTS, 2,2-azinobis-(3-ethylbenzothiazoline-6-sulfonate); EC50 (concentration required to obtain 50% antioxidant effect).