Bioaccessibility of phenolic compounds in Psidium guajava L. varieties and P. friedrichsthalianum Nied. after gastrointestinal digestion
Fecha
2022-08
Tipo
artículo original
Autores
Durán Castañeda, Alba Cecilia
Cárdenas Castro, Alicia Paulina
Pérez Jiménez, Jara
Pérez Carvajal, Ana Mercedes
Sánchez Burgos, Jorge Alberto
Mateos, Raquel
Sáyago Ayerdi, Sonia G.
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Resumen
Psidium guajava L. and Psidium friedrichsthalianum Nied are part of the Psidium species native to America. Nowadays, it is essential to study the phenolic compound (PC) profile and their changes during digestion and the fractions available for absorption. This study aimed to characterize the PC profile in some Psidium species and their bioaccessibility (BA). Fifty-seven compounds were identified, and forty-six belonged to ten different phenolic classes. PC profiles showed significant differences between the species and the intestinal fraction P. friedrichsthalianum Nied. showed the highest PC content, although it mostly belonged to non-extractable polyphenols. This leads to the lowest BA (37%); P. guajava L. ‘Morada’ showed the highest (47%). Hydroxycinnamic acids were the most stable PC after gastrointestinal digestion. This study showed relevant differences in the PC content and profile of different Psidium species and changes between the PC in the original matrix and those released in the different stages of gastrointestinal digestion.
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BIOACCESSIBILITY, DIGESTIVE SYSTEMS, PHENOLIC COMPOUNDS