Assessment of the phenolic profile and biological activities of aqueous date seed extracts: A comparative analysis

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Tareq M. Osaili
  • Aseel Swaidan
  • Anas Al-Nabulsi
  • Amin Olaimat
  • Susanne Neugart
  • Layla Engelhardt
  • Tuba Esatbeyoglu
  • Mutamed Ayyash
  • Leila Cheikh Ismail
  • Maher M Al-Dabbas
  • Reyad S. Obaid
  • Nada El Darra

External Research Organisations

  • Jordan University of Science and Technology
  • Beirut Arab University
  • University of Sharjah
  • Hashemite University
  • University of Göttingen
  • United Arab Emirates University
  • Al Ain University of Science and Technology
  • University of Jordan
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Details

Original languageEnglish
Article number100493
JournalApplied Food Research
Volume4
Issue number2
Early online date7 Sept 2024
Publication statusPublished - Dec 2024

Abstract

Date palm fruit (Phoenix dactylifera L.) is a well-known fruit that has become increasingly popular among consumers due to its pleasant flavor, nutrient-dense content, and nutraceutical characteristics. Date seeds are the main by-product of date fruit consumption and processing. Date seeds are usually incorporated in animal feed; however, their application in human contexts, such as food products, remains minimal. Nonetheless, they contain significant amounts of bioactive phenolic compounds, primarily flavonoids, which possess potential health benefits. The current study investigated and compared the phenolic profile, antioxidant, and antibacterial activities of aqueous extracts of nine different date seeds varieties. The phenolic profile, analyzed using high-performance liquid chromatography (HPLC-DAD-ESI-MS), showed that total phenolic compounds ranged from 1.05 to 1.24 mg/g in Reziz and Naghal varieties, respectively, with flavan-3-ols predominating in all varieties. Results of the ABTS and DPPH assays revealed that the antioxidant activities against free radicals were directly correlated with the overall phenolic content, particularly for caffeic acid. Indeed, all date seeds possessed antibacterial capabilities, with a stronger effect observed on Listeria monocytogenes than Escherichia coli. Additionally, date seeds demonstrated a promising source of oil rich in oleic and lauric acids, both of which are considered beneficial for health. According to our findings, date seeds are a significant source of bioactive compounds, which renders them ideal candidates for potential inclusion in human diets as food additives and nutraceuticals.

Keywords

    Antibacterial, Antioxidant, Date seeds oil, Nutraceuticals, Phenolic compound, Phoenix dactylifera

ASJC Scopus subject areas

Sustainable Development Goals

Cite this

Assessment of the phenolic profile and biological activities of aqueous date seed extracts: A comparative analysis. / Osaili, Tareq M.; Swaidan, Aseel; Al-Nabulsi, Anas et al.
In: Applied Food Research, Vol. 4, No. 2, 100493, 12.2024.

Research output: Contribution to journalArticleResearchpeer review

Osaili, TM, Swaidan, A, Al-Nabulsi, A, Olaimat, A, Neugart, S, Engelhardt, L, Esatbeyoglu, T, Ayyash, M, Ismail, LC, Al-Dabbas, MM, Obaid, RS & Darra, NE 2024, 'Assessment of the phenolic profile and biological activities of aqueous date seed extracts: A comparative analysis', Applied Food Research, vol. 4, no. 2, 100493. https://doi.org/10.1016/j.afres.2024.100493
Osaili, T. M., Swaidan, A., Al-Nabulsi, A., Olaimat, A., Neugart, S., Engelhardt, L., Esatbeyoglu, T., Ayyash, M., Ismail, L. C., Al-Dabbas, M. M., Obaid, R. S., & Darra, N. E. (2024). Assessment of the phenolic profile and biological activities of aqueous date seed extracts: A comparative analysis. Applied Food Research, 4(2), Article 100493. https://doi.org/10.1016/j.afres.2024.100493
Osaili TM, Swaidan A, Al-Nabulsi A, Olaimat A, Neugart S, Engelhardt L et al. Assessment of the phenolic profile and biological activities of aqueous date seed extracts: A comparative analysis. Applied Food Research. 2024 Dec;4(2):100493. Epub 2024 Sept 7. doi: 10.1016/j.afres.2024.100493
Osaili, Tareq M. ; Swaidan, Aseel ; Al-Nabulsi, Anas et al. / Assessment of the phenolic profile and biological activities of aqueous date seed extracts: A comparative analysis. In: Applied Food Research. 2024 ; Vol. 4, No. 2.
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AU - Al-Nabulsi, Anas

AU - Olaimat, Amin

AU - Neugart, Susanne

AU - Engelhardt, Layla

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AU - Ayyash, Mutamed

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