Research Article

The Composition, Antioxidant and Antibacterial Activities of Cold-Pressed and Distilled Essential Oils of Citrus paradisi and Citrus grandis (L.) Osbeck

Table 2

DPPH and ABTS scavenging activity of cold-pressed and distilled essential oils of C. paradisi and C. grandis.

Oil concentrationC. paradisiC. grandis
Cold-pressedDistilledCold-pressedDistilled

DPPH scavenging activity
10 mg/mL0.88 ± 0.0114.87 ± 0.0100
20 mg/mL1.12 ± 0.0032.13 ± 0.0000
40 mg/mL7.75 ± 0.0151.24 ± 0.0102.32 ± 0.01

ABTS scavenging activity
10 mg/mL7.21 ± 0.01127.42 ± 0.0193.11 ± 0.0063.70 ± 0.006
20 mg/mL10.47 ± 0.00948.36 ± 0.0163.66 ± 0.0094.95 ± 0.015
40 mg/mL15.94 ± 0.00666.14 ± 0.0056.00 ± 0.0109.06 ± 0.007

Values are means ± SD (). An asterisk indicates a significant difference to the control (). Means in a raw with different small letters are significantly different ().