Chitosan Interaction with Iron from Yoghurt Using an In Vitro Digestive Model: Comparative Study with Plant Dietary Fibers

Autor: Miriam Nora Martino, María Susana Rodríguez, Alicia Eva Bevilacqua, Liliana Albertengo, Mirta Montero, Marina Dello Staffolo
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: CIC Digital (CICBA)
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron:CICBA
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
International Journal of Molecular Sciences, Vol 12, Iss 7, Pp 4647-4660 (2011)
International Journal of Molecular Sciences
International Journal of Molecular Sciences; Volume 12; Issue 7; Pages: 4647-4660
Popis: The objective of this work was to investigate the interaction of chitosan with iron from yoghurt by an in vitro gastrointestinal tract model. Taking into account that chitosan is a polysaccharide included in fiber definition by Codex Alimentarius; chitosan behavior was studied and compared with different plant fiber (wheat, bamboo, apple, psyllium and inulin) behaviors, in the same in vitro conditions. Ferrous sulfate was added to yoghurts with each type of fiber. The gastric environment was simulated with HCl (pH 1.0–2.0). The duodenal environment was simulated with NaHCO3 (pH 6.8–7.2) and a dialysis tubing cellulose membrane. Results showed that chitosan had the highest iron retention percentages (53.2% at 30 min; 56.8% at 60 min) interacting in a more pronounced manner with iron than the plant fibers used in this work.
Facultad de Ciencias Exactas
Databáze: OpenAIRE