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The antioxidant activity of methanolic extracts of Cuminum cyminum L. (cumin) and Garcinia cambogia L. (cambodge)
and an antipeptide Nisin was determined. The different methods like DPPH (2,2-diphenyl-1-picrylhydrazyl), ABTS (2,
2’-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid), H2O2
(Hydrogen peroxide), Hydroxyl radical scavenging activity,
Nitric oxide scavenging assay, and Reducing power capacity were measured with before and after encapsulation of
phosphatidyl choline liposomes. All the samples showed dose dependent increase in antioxidant activity. The higher
concentration at 50 µg/mL indicated much superior level of antioxidant properties and after the encapsulation in
liposomes such as Liposome Cumin (LC), Liposome Cambodge (LCa) and Liposome Nisin (LN) showed increased level
of antioxidant activity than the other three samples Cumin, Cambodge and Nisin (C, Ca, N) in original form. Butylated
hydroxy toluene (BHT), used as control, resulted in the highest percentage of inhibition in all the methods. All the
samples showed better inhibition or scavenging activity in every antioxidant method and the results were expressed as
significant at p < 0.05.
Swathy Krishna, Arya R. Krishna, C. Jayaprabha, P. A. Trisha Mary, Suganthi Ramasamy. (2020) EVALUATION OF ANTIOXIDANT ACTIVITIES OF PLANT EXTRACTS ENCAPSULATED IN LIPOSOMES, , Volume 17, Issue 2.
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