Food-Grade Titanium Dioxide Particles Decreased the Bioaccessibility of Vitamin D3 in the Simulated Human Gastrointestinal Tract

2021 ◽  
Vol 69 (9) ◽  
pp. 2855-2863
Author(s):  
Chunyang Li ◽  
Ruojie Zhang ◽  
Chuanxin Ma ◽  
Heping Shang ◽  
David Julian McClements ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Gastrointestinal Tract ◽  
Vitamin D3 ◽  
Human Gastrointestinal Tract ◽  
Food Grade

Food-grade titanium dioxide particles decrease the bioaccessibility of iron released from spinach leaves in simulated human gastrointestinal tract

2021 ◽  
Author(s):  
Chunyang Li ◽  
Chuanxin Ma ◽  
Heping Shang ◽  
Jason C. White ◽  
David Julian McClements ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Gastrointestinal Tract ◽  
Amylase Activity ◽  
Human Gastrointestinal Tract ◽  
Food Grade ◽  
Spinach Leaves

E171 reduced Fe bioaccessibility of spinach in a simulated gastrointestinal tract via two mechanisms: the inhibition of α-amylase activity and adsorption of released Fe from spinach.

scholarly journals Effects of high doses of vitamin D3 on mucosa-associated gut microbiome vary between regions of the human gastrointestinal tract

2015 ◽  
Vol 55 (4) ◽  
pp. 1479-1489 ◽  
Author(s):  
Mina Bashir ◽  
Barbara Prietl ◽  
Martin Tauschmann ◽  
Selma I. Mautner ◽  
Patrizia K. Kump ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Vitamin D3 ◽  
Gut Microbiome ◽  
Human Gastrointestinal Tract ◽  
High Doses

Caco-2 in vitro model of human gastrointestinal tract for studying the absorption of titanium dioxide and silver nanoparticles from seafood

Talanta ◽  
2021 ◽  
pp. 122494
Author(s):  
María Vanesa Taboada-López ◽  
Baltazar Hiram Leal-Martínez ◽  
Raquel Domínguez-González ◽  
Pilar Bermejo-Barrera ◽  
Pablo Taboada-Antelo ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Titanium Dioxide ◽  
Gastrointestinal Tract ◽  
In Vitro Model ◽  
Human Gastrointestinal Tract ◽  
Vitro Model

The Design of a Hydraulic Suction Tube for Peroral Biopsy of the Human Gastrointestinal Tract

1962 ◽  
Vol 42 (3) ◽  
pp. 281-284 ◽  
Author(s):  
Wayne E. Quinton ◽  
Arnold L. Flick ◽  
Cyrus E. Rubin
Keyword(s):  
Gastrointestinal Tract ◽  
Human Gastrointestinal Tract ◽  
Suction Tube

The Host Genotype Affects the Bacterial Community in the Human Gastrointestinal Tract

2001 ◽  
Vol 13 (3) ◽  
Author(s):  
Erwin G. Zoetendal ◽  
Antoon D. L. Akkermans ◽  
Wilma M. Akkermans-van Vliet ◽  
J. Arjan G. M. De Visser ◽  
Willem M. De Vos
Keyword(s):  
Gastrointestinal Tract ◽  
Bacterial Community ◽  
Human Gastrointestinal Tract ◽  
Host Genotype

scholarly journals Effect of TiO2 on Selected Pathogenic and Opportunistic Intestinal Bacteria

2021 ◽  
Author(s):  
Ewa Baranowska-Wójcik ◽  
Dominik Szwajgier ◽  
Klaudia Gustaw
Keyword(s):  
Titanium Dioxide ◽  
Bacterial Strain ◽  
Intestinal Bacteria ◽  
Food Additive ◽  
Bacterial Strains ◽  
Gastrointestinal Microbiota ◽  
Food Grade ◽  
The Eu

AbstractFood-grade titanium dioxide (TiO2) containing a nanoparticle fraction (TiO2 NPs-nanoparticles) is widely used as a food additive (E171 in the EU). In recent years, questions concerning its effect on the gastrointestinal microbiota have been raised. In the present study, we examined interactions between bacteria and TiO2. The study involved six pathogenic/opportunistic bacterial strains and four different-sized TiO2 types: three types of food-grade E171 compounds and TiO2 NPs (21 nm). Each bacterial strain was exposed to four concentrations of TiO2 (60, 150, 300, and 600 mg/L TiO2). The differences in the growth of the analyzed strains, caused by the type and concentration of TiO2, were observed. The growth of a majority of the strains was shown to be inhibited after exposure to 300 and 600 mg/L of the food-grade E171 and TiO2 NPs.

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