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Pistachio leaf waste transformed into a gut-targeted bioactive phytocomplex.

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Pistachio leaf extract (PLE) supports gut health by promoting beneficial bacteria and reducing inflammation. This polyphenol-rich compound shows potential for functional foods promoting gastrointestinal homeostasis.

Keywords:
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Area of Science:

  • Microbiology
  • Nutrition Science
  • Pharmacology

Background:

  • The human gut microbiota plays a crucial role in host physiology, impacting immunity, metabolism, and digestion.
  • Alterations in gut microbial composition are associated with inflammatory and metabolic diseases.
  • Natural products are increasingly investigated for their potential to modulate gut health.

Purpose of the Study:

  • To investigate the potential of pistachio leaf extract (PLE) as a functional ingredient for gut health.
  • To evaluate the prebiotic-like, antimicrobial, antioxidant, and anti-inflammatory properties of PLE.
  • To assess the safety and efficacy of PLE in human intestinal organoid models.

Main Methods:

  • Chemical characterization of pistachio leaf extract (from Pistacia vera).
  • In vitro assays for prebiotic-like effects (bacterial growth), antimicrobial activity (pathogenic strains), antioxidant capacity, and anti-inflammatory activity.
  • Assessment of cytotoxicity in human colon cells and efficacy in patient-derived intestinal organoids.

Main Results:

  • PLE demonstrated prebiotic-like activity, promoting beneficial bacteria growth.
  • The extract inhibited the growth of pathogenic bacterial strains.
  • PLE exhibited significant antioxidant and anti-inflammatory effects in intestinal organoids.
  • No cytotoxicity was observed in human colon cells, indicating safety.

Conclusions:

  • Pistachio leaf extract is a safe, multifunctional compound with potential benefits for gut health.
  • PLE's ability to modulate gut microbiota and reduce inflammation suggests its utility in functional foods.
  • Further research into PLE could lead to novel strategies for managing gastrointestinal disorders.