Smoothies Reduce the "Bioaccessibility" of TiO₂ (E 171) in the Model of the In Vitro Gastrointestinal Tract.

ABSTRACT: The food colorant E171 (TiO₂) containing nano fractions can cause potential health problems. In the presented work, we used a "gastrointestinal tract" model (oral→large intestine) to "digest" a fruit smoothie in the presence of TiO₂ nanoparticles and the Lactiplantibacillus plantarum B strain. The TiO₂ migration was measured using the microfiltration membrane (0.2 µm; model of "TiO₂ bioacessability"). We observed that the addition of the smoothie reduced the Ti content in the microfiltrate (reduced "bioacessability") at the "mouth", "stomach" and "large intestine" stages, probably due to the entrapment of Ti by the smoothie components. A significant decrease in Ti "bioaccessibility" at the "gastric" stage may have resulted from the agglome

SUBMITTER: Baranowska-Wojcik E 

PROVIDER: S-EPMC9460534 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature