RESUMO

Moringa oleifera is a plant recognized for its compounds such as dietary fiber (oligosaccharides, amongst others) and polyphenols, with biological activities. These properties depend on bioactive compounds (BC) interactions with food matrix/digestion conditions, which have not been evaluated. Thus, the aim of this study was to evaluate the bioaccessibility, intestinal permeability and antioxidant capacity of BC (free-phenolic compounds (PC); and mono/oligosaccharides (MOS)) from Moringa oleifera leaves (ML) powder during in vitro gastrointestinal digestion. The gallic/caffeic acids, morin, kaempferol, mannose and stachyose showed the highest bioaccessibilities (~6-210%). The PC correlated with the antioxidant capacity (R2: 0.59-0.98, p < .05), whereas gallic/caffeic acids were the highest. The apparent permeability coefficients of bioactive compounds (0.62-36.65 × 10-4 cm/s) and water flux/glucose transport confirmed the model similarity to in vivo experiments. The results suggest that ML digestion dynamically modifies PC/MOS bioaccessibility/antioxidant capacity while most of them are not completely absorbed in the small intestine.

Assuntos

Antioxidantes/metabolismo , Trato Gastrointestinal/metabolismo , Moringa oleifera/metabolismo , Oligossacarídeos/metabolismo , Fenóis/metabolismo , Folhas de Planta/metabolismo , Animais , Humanos , Técnicas In Vitro , Mucosa Intestinal/metabolismo , Masculino , Modelos Animais , Monossacarídeos/metabolismo , Moringa oleifera/química , Permeabilidade , Folhas de Planta/química , Ratos , Ratos Wistar , Saliva/metabolismo