Tecnológico Nacional de México/Instituto Tecnológico de Tepic, Av. Tecnológico No 2595, Col. Lagos del Country CP, 63175 Tepic, Nayarit, Mexico.
Dpt. Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), José Antonio Novais 10, 28040 Madrid, España.
Food Chem. 2023 Jan 30;400:134046. doi: 10.1016/j.foodchem.2022.134046. Epub 2022 Aug 28.
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.
番石榴和菲油果是原产于美洲的番石榴属植物。目前，研究酚类化合物（PC）在消化过程中的特征及其变化以及可吸收的部分是很重要的。本研究旨在对一些番石榴属植物的 PC 特征及其生物利用度（BA）进行研究。共鉴定出 57 种化合物，其中 46 种属于 10 种不同的酚类化合物。不同种植物的 PC 特征存在显著差异，肠道部位的菲油果所含 PC 含量最高，尽管它主要属于不可提取的多酚。这导致其 BA 最低（37%）；番石榴 'Morada' 的 BA 最高（47%）。羟基肉桂酸是胃肠道消化后最稳定的 PC。本研究表明，不同番石榴属植物的 PC 含量和特征存在显著差异，以及原基质中的 PC 与胃肠道消化不同阶段释放的 PC 之间的变化。
