Back to Search
Start Over
Impact of food additive titanium dioxide on the polyphenol content and antioxidant activity of the apple juice.
- Source :
-
LWT - Food Science & Technology . Jan2022, Vol. 154, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- Food grade titanium dioxide (TiO 2) usually contains a nanosized fraction, while only a few studies had investigated the effects of TiO 2 nanoparticles (NPs) on the other food components via oral exposure. This work investigated the impact of TiO 2 NPs on the content, bioaccessibility and antioxidant activity of polyphenols in the apple juice. Results indicated that adding 500 mg/100 g TiO 2 NPs significantly decreased the contents of total polyphenol and the main individual polyphenols in the apple juice, which was attributed to the formation of polyphenol-TiO 2 NPs charge transfer complexes aggregation. Additionally, the addition of TiO 2 NPs reduced the bioaccessibility and antioxidant activity of apple polyphenols in a dose dependent manner. This study indicated that TiO 2 NPs can bind polyphenols in the complex food matrix, and provided valuable insights into the influence of food grade TiO 2 NPs on the other food components after oral consumption. [Display omitted] • Effect of TiO 2 NPs on the bioaccessibility and antioxidant activity of apple polyphenol was studied. • TiO 2 NPs can bind with polyphenols in the complex food matrix. • TiO 2 NPs reduced the contents of total and individual apple polyphenols in a dose-dependent manner. • The formation of polyphenol-TiO 2 NPs complexes reduced the antioxidant activity of apple juice. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00236438
- Volume :
- 154
- Database :
- Academic Search Index
- Journal :
- LWT - Food Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 154052392
- Full Text :
- https://doi.org/10.1016/j.lwt.2021.112574