The antioxidant effect of plums and polyphenolic compounds against H 2O2-induced oxidative stress in mouse blood granulocytes

Jaouad Bouayed*, Hassan Rammal, Amadou Dicko, Chafique Younos, Rachid Soulimani

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

26 Citations (Scopus)

Abstract

Epidemiological and scientific research has contributed to the identification of the key role of dietary antioxidants in maintaining human health by preventing oxidative damage to cellular components. The antiradical activity of seven varieties of plums and their protective effects against oxidative stress were comparatively evaluated in mouse granulocytes in this study using a 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) test and a cellular test. The class of phytochemical compounds responsible for the main antioxidant capacities observed was also investigated. The ABTS and cellular tests revealed that the total antioxidant capacities, expressed as vitamin C equivalents, ranged from 691.2 to 2,164.64 mg and from 613.98 to 2,137.59 mg per 100 g of fresh weight, respectively, suggesting that plums are rich in natural antioxidants and appreciably protect granulocytes from oxidative stress. Our results showed a linear correlation between either total phenolic or flavonoid contents and total antioxidant capacity, revealing that these compounds contribute significantly to the antioxidant activity of plums. The major polyphenolics in plums, identified and quantified using reversed-phase high-performance liquid chromatography, were tested to evaluate their protective effect on peripheral blood granulocytes from oxidative stress. The results suggest that individual polyphenolics contribute directly to the total protective effect of plums.

Original languageEnglish
Pages (from-to)861-868
Number of pages8
JournalJournal of Medicinal Food
Volume12
Issue number4
DOIs
Publication statusPublished - 1 Aug 2009
Externally publishedYes

Keywords

  • Antioxidants
  • Flavonoids
  • Granulocytes>
  • Oxidative stress
  • Phenolics
  • Plums

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