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Studies on the Antioxidant Activity of Pomegranate (Punica granatum) Peel and Seed Extracts Using in Vitro Models

Singh, R. P., Chidambara Murthy, K. N., Jayaprakasha, G. K.·2002·Journal of Agricultural and Food Chemistry

Abstract

Antioxidant-rich fractions were extracted from pomegranate (Punica granatum) peels and seeds using ethyl acetate, methanol, and water. The extracts were screened for their potential as antioxidants using various in vitro models, such as beta-carotene-linoleate and 1,1-diphenyl-2-picryl hydrazyl (DPPH) model systems. The methanol extract of peels showed 83 and 81% antioxidant activity at 50 ppm using the beta-carotene-linoleate and DPPH model systems, respectively. Similarly, the methanol extract of seeds showed 22.6 and 23.2% antioxidant activity at 100 ppm using the beta-carotene-linoleate and DPPH model systems, respectively. As the methanol extract of pomegranate peel showed the highest antioxidant activity among all of the extracts, it was selected for testing of its effect on lipid peroxidation, hydroxyl radical scavenging activity, and human low-density lipoprotein (LDL) oxidation. The methanol extract showed 56, 58, and 93.7% inhibition using the thiobarbituric acid method, hydroxyl radical scavenging activity, and LDL oxidation, respectively, at 100 ppm. This is the first report on the antioxidant properties of the extracts from pomegranate peel and seeds. Owing to this property, the studies can be further extended to exploit them for their possible application for the preservation of food products as well as their use as health supplements and neutraceuticals.

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Authors
Singh, R. P., Chidambara Murthy, K. N., & Jayaprakasha, G. K.
Venue
Journal of Agricultural and Food Chemistry
Published
2001-11-17
Volume
50
Issue
1
Pages
81-86
ISSN
  • 0021-8561 (ISSN-L)
  • 1520-5118
OpenAlex
W2041110016
Cited by
1,281
References
0
FWCI
9.16
Type
journal article
Language
en
Open access
closed

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