In passion fruit albedo samples, as occurred with passion fruit seeds and pulp, the samples extracted with dimethyl sulfoxide showed higher chelating activity at all concentrations than the samples extracted with methanol.
At highest concentration, no statistically were found between the passion fruit seeds and pulp of extracted with dimethyl sulfoxide and passion fruit albedo of extracted with dimethyl sulfoxide.
In general terms, it should be noted that the passion fruit seeds and pulp and passion fruit albedo exhibited higher ion-chelating capacity than BHT, which was used as a positive control.
The concentration that inhibition 50% values were in the order PSPFD,PFAD,PSPFW,PSPFM,PFAM, and BHT.
From the graph, it can be concluded that at 0.78-6.25 mg/mL, passion fruit seeds and pulp is higher inhibition percentage than passion fruit albedo and passion fruit seeds and pulp is lower inhibition percentage than passion fruit albedo at 12.5-100 mg/mL with both extracted by dimethyl sulfoxide and mthanol.