Phytochemical profile and antioxidant potential of different tissues of Zizyphus jujube Mill.

Esteki, Taraneh and Asna Urooj (2012) Phytochemical profile and antioxidant potential of different tissues of Zizyphus jujube Mill. International Journal of Food Nutrition and Safety, 1 (3). pp. 144-157. ISSN 2165-896X

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Abstract

Zizyphus jujube is a thorny rhamnaceous plant, and its different parts possess multiple medicinal properties. Evaluation of the nutrient composition, phytochemical screening and antioxidant properties were studied in different parts of Ziziphus Jujube Mill viz., pulp, seed and combination of pulp and seed. Methanol and aqueous extracts were analyzed for flavonoid, saponin contents and antioxidant activities. Two experimental models including 2, 2-diphenyl-1-picryl-hydrazyl (DPPH) free radical scavenging activity and reducing power assay were used for evaluating of antioxidant activity of the extracts. Protein and iron contents were significantly (p < 0.05) higher in seed while pulp was rich in phosphorus. By sequential extracts, maximum phytochemicals were screened in the aqueous and methanolic extracts. The highest levels of polyphenol, tannin, glutathione, and ascorbic acid contents were found in the pulp. The greatest DPPH activity and reducing power assay were exhibited in methanolic extract of the seed. High correlation coefficients were found among antioxidant contents and antioxidant activities of different samples except for polyphenol and glutathione of pulp in reducing power assay. Based on results obtained, jujube with the potential source of nutrients and antioxidants might be used as a natural antioxidant.

Item Type: Article
Subjects: B Life Science > Food Science and Nutrition
Divisions: Department of > Food Science and Nutrition
Depositing User: C Swapna Library Assistant
Date Deposited: 31 Aug 2019 09:14
Last Modified: 31 Aug 2019 09:14
URI: http://eprints.uni-mysore.ac.in/id/eprint/7452

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