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Antioxidant and metabolite identification of different varieties of dates (Phoenix dactylifera L.)


Kadum, Hana and Abdul Hamid, Azizah and Abas, Faridah and Mohammed, Abdulkarim Sabo and Ramli, Nurul Shazini (2017) Antioxidant and metabolite identification of different varieties of dates (Phoenix dactylifera L.). In: International Food Research Conference (IFRC 2017), 25-27 July 2017, Complex of the Deputy Vice Chancellor (Research and Innovation), Universiti Putra Malaysia. (pp. 293-296).


Date fruits are important for both nutritional and therapeutic properties. They are rich sources of sugars, vitamins, minerals, fibres and various phytochemicals. The aim of this study is to determine the antioxidant activity and metabolite profiling of 5 different dates (Phoenix dactylifera L.) varieties including Ajwa, Mariami, Piyarom, Tunisia, and Anbar. The antioxidant activity of the dates was measured using DPPH, FRAP assay systems. Proton nuclear magnetic resonance (1H NMR) was used for metabolite profiling. Results of the study revealed that Mariami extract consisted of the highest total phenolic content (355 mg GAE/g DW), while the most potent DPPH scavenging activity (IC50 of 16.2 μg/mL) and FRAP (18.38 Mm Fe (II)/g) was demonstrated by Piyarom variety. A discriminatory study on metabolites responsible for the variation between the samples was successfully performed using 1H-NMR-based metabolomics. The principal component analysis plots exhibited clear and distinct separations between the dates studied. The metabolites identified that may attribute to the separation were sucrose, succinic acid, leucine, glutamine and lysine. The results suggest that all the studied dates serve as a good source of vital nutrients and can be considered as a premium quality having significantly higher antioxidant activity.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Food Science and Technology
Institute of Bioscience
Publisher: Faculty of Food Science and Technology, Universiti Putra Malaysia
Keywords: Antioxidant activity; Date palm; DPPH; FRAP; Metabolite profiling
Depositing User: Nabilah Mustapa
Date Deposited: 21 May 2018 03:25
Last Modified: 21 May 2018 03:25
URI: http://psasir.upm.edu.my/id/eprint/60338
Statistic Details: View Download Statistic

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