Chemical Composition and Biological Activities of the Essential Oils of Chrysophyllum albidum G. Don (African Star Apple)

Table 6

Antioxidant activities of leaf and fruit essential oils of Chrysophyllum albidum as determined from different assays.

Sample	Total antioxidant capacity (μg/g AAE)	DPPH radical scavenging activity IC50 (μg/mL)	H2O2 scavenging activity IC50 (μg/mL)	TBARS IC50 (μg/mL)
Leaf	104.8 ± 2.4	301.8 ± 0.7	1048.0 ± 0.3	460.1 ± 2.7
Fruit	101.6 ± 0.8	669.2 ± 2.1	1454.0 ± 0.3	457.4 ± 0.3
Ascorbic acid	nd	11.9 ± 1.9	nd	6.7 ± 0.3
Butylated Hydroxytoluene (BHT)	nd	nd	nd	8.0 ± 0.4
Gallic acid	nd	nd	87.5 ± 0.4	nd

Data represented as mean ± standard deviation, n = 3; TAC: total antioxidant capacity; TBARS: thiobarbituric acid reactive substance assay; nd: not determined (compound not used in that experiment).