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Percorrer por autor "Corredig, Milena"

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  • INFOGEST static in vitro simulation of gastrointestinal food digestion
    Publication . Brodkorb, André; Egger, Lotti; Alminger, Marie; Alvito, Paula; Assunção, Ricardo; Ballance, Simon; Bohn, Torsten; Bourlieu-Lacanal, Claire; Boutrou, Rachel; Carrière, Frédéric; Clemente, Alfonso; Corredig, Milena; Dupont, Didier; Dufour, Claire; Edwards, Cathrina; Golding, Matt; Karakaya, Sibel; Kirkhus, Bente; Le Feunteun, Steven; Lesmes, Uri; Macierzanka, Adam; Mackie, Alan R.; Martins, Carla; Marze, Sébastien; McClements, David Julian; Ménard, Olivia; Minekus, Mans; Portmann, Reto; Santos, Cláudia N.; Souchon, Isabelle; Singh, R. Paul; Vegarud, Gerd E.; Wickham, Martin S.J.; Weitschies, Werner; Recio, Isidra
    Developing a mechanistic understanding of the impact of food structure and composition on human health has increasingly involved simulating digestion in the upper gastrointestinal tract. These simulations have used a wide range of different conditions that often have very little physiological relevance, and this impedes the meaningful comparison of results. The standardized protocol presented here is based on an international consensus developed by the COST INFOGEST network. The method is designed to be used with standard laboratory equipment and requires limited experience to encourage a wide range of researchers to adopt it. It is a static digestion method that uses constant ratios of meal to digestive fluids and a constant pH for each step of digestion. This makes the method simple to use but not suitable for simulating digestion kinetics. Using this method, food samples are subjected to sequential oral, gastric and intestinal digestion while parameters such as electrolytes, enzymes, bile, dilution, pH and time of digestion are based on available physiological data. This amended and improved digestion method (INFOGEST 2.0) avoids challenges associated with the original method, such as the inclusion of the oral phase and the use of gastric lipase. The method can be used to assess the endpoints resulting from digestion of foods by analyzing the digestion products (e.g., peptides/amino acids, fatty acids, simple sugars) and evaluating the release of micronutrients from the food matrix. The whole protocol can be completed in ~7 d, including ~5 d required for the determination of enzyme activities.
    2019-04Artigo científico Acesso restrito Ver mais
  • A Shared Perspective on in Vitro and in Vivo Models to Assay Intestinal Transepithelial Transport of Food Compounds
    Publication . Hevia, Arancha; Ruas-Madiedo, Patricia; Faria, Miguel Angelo; Petit, Valérie; Alves, Bruna; Alvito, Paula; Arranz, Elena; Bastiaan-Net, Shanna; Corredig, Milena; Dijk, Wieneke; Dupont, Didier; Giblin, Linda; Graf, Brigitte Anna; Kondrashina, Alina; Ramos, Helena; Ruiz, Lorena; Santos-Hernández, Marta; Soriano-Romaní, Laura; Tomás-Cobos, Lidia; Vivanco-Maroto, Santiaga María; Recio, Isidra; Miralles, Beatriz
    Assessing nutrient bioavailability is complex, as the process involves multiple digestion steps, several cellular environments, and regulatory-metabolic mechanisms. Several in vitro models of different physiological relevance are used to study nutrient absorption, providing significant challenges in data evaluation. However, such in vitro models are needed for mechanistic studies as well as to screen for biological functionality of the food structures designed. This collaborative work aims to put into perspective the wide-range of models to assay the permeability of food compounds considering the particular nature of the different molecules, and, where possible, in vivo data are provided for comparison.
    2023-11-30Artigo científico Acesso restrito Ver mais