Evaluating the invitro bioaccessibility of phenolics and antioxidant activity during consumption of dried fruits with nuts

Senem Kamiloglu, Ayca Ayfer Pasli, Beraat Ozcelik, Esra Capanoglu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

77 Citations (Scopus)

Abstract

Dried fruits and nuts are considered as healthy snacks and they are often consumed together in the Turkish diet. In order to investigate the effect of codigestion of dried fruits (figs, apricots, raisins) together with nuts (almonds, walnuts, hazelnuts), total phenolics (TP) and total antioxidant capacity (TAC) have been evaluated spectrophotometrically at different phases of simulated gastrointestinal (GI) digestion, using an invitro model. TP, ABTS and CUPRAC results revealed that for all fruit-nut mixtures, the amount recovered in the dialyzed fraction was lower than the recovery of fruits or nuts alone, indicating an antagonistic effect. On the other hand, DPPH results showed that for fig-walnut, fig-hazelnut and apricot-hazelnut mixtures the quantity recovered in the dialyzed fractions were 35-107% higher than the recovery of fruits or nuts alone, representing a synergistic effect. Similarly, FRAP results also demonstrated a synergistic effect in case of fig-walnut, apricot-walnut and apricot-hazelnut mixtures (10-74% higher recovery). Current study provides valuable insights into the changes taking place during invitro GI digestion of dried fruits and nuts.

Original languageEnglish
Pages (from-to)284-289
Number of pages6
JournalLWT
Volume56
Issue number2
DOIs
Publication statusPublished - May 2014

Funding

This study was financially supported by the EU 7th Frame ATHENA Project ( FP7-KBBE-2009-3-245121-ATHENA ).

FundersFunder number
EU 7th FrameFP7-KBBE-2009-3-245121-ATHENA
Seventh Framework Programme245121

    Keywords

    • Antioxidant capacity
    • Codigestion
    • Dried fruits
    • Nuts
    • Phenolics

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