Impact of functional flours from pineapple by-products on human intestinal microbiota

Débora A. Campos, Ezequiel R. Coscueta, Ana A. Vilas-Boas, Sara Silva, José A. Teixeira, Lorenzo M. Pastrana, Maria Manuela Pintado*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)


Solid fractions from pineapple stems and peels are constituted by structural carbohydrates coupled with dietary fibre, simple sugars, but also vitamins and polyphenols, which together can have potential effects on human health. The present studies report for the first time the bioavailability and bioaccessibility of pineapple by-products fractions throughout simulated gastrointestinal tract, evaluates prebiotic potential and in vitro human microbiota fermentation. The pineapple flours promoted the human faeces fermentation through growth of beneficial strains, being corroborated by the decrease of simple sugars and the production of healthy organic acids (acetic, propionic and butyric acids) - well known short chain fatty acids. On the other hand, a high phenolic compounds content was release through flours digestion, developing an antioxidant environment within human gut. Thus, was possible to conclude that pineapple flour promoted a positive modulation in the overall system, proving a synergetic interaction of dietary fibre and polyphenols upon human microbiota.
Original languageEnglish
Article number103830
JournalJournal of Functional Foods
Publication statusPublished - Apr 2020


  • Dietary fibre
  • Functional flours
  • GIT simulation
  • Human gut microbiota
  • Polyphenols


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