Determination and identification of titanium dioxide nanoparticles in confectionery foods, marketed in South Korea, using inductively coupled plasma optical emission spectrometry and transmission electron microscopy

Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
Namhoon KimKweon Jung

Abstract

Food-grade titanium dioxide (TiO2) is a common and widespread food additive in many processed foods, personal care products, and other industrial categories as it boosts the brightness and whiteness of colours. Although it is generally recognised as safe for humans, there is a growing interest in the health risks associated with its oral intake. This study quantified and identified TiO2 nanoparticles present in confectionery foods, which are children's favourite foods, with inductively coupled plasma optical emission spectrometry (ICP-OES) and transmission electron microscopy (TEM). A reliable digestion method using hot sulphuric acid and a digestion catalyst (K2SO4:CuSO4 = 9:1) was suggested for titanium analysis. Validations of the experimental method were quite acceptable in terms of linearity, recoveries, detection limits, and quantification limits. Of all the 88 analysed foods, TiO2 was detected in 19 products, all except three declared TiO2 in their labelling. The mean TiO2 content of candies, chewing gums, and chocolates were 0.36 mg g-1, 0.04 mg g-1, and 0.81 mg g-1, respectively. Whitish particles isolated from the confectionery foods were confirmed as TiO2 nanoparticles via TEM and energy dispersive X-ray spectroscopy...Continue Reading

References

Oct 1, 1996·American Journal of Respiratory and Critical Care Medicine·A Churg
Jun 1, 2010·Advanced Materials·Robert LandsiedelWendel Wohlleben
Sep 28, 2010·Nanotoxicology·Susan DekkersAgnes G Oomen
Feb 22, 2011·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Motoh MutsugaYoko Kawamura
Jan 21, 2012·Environmental Science & Technology·Alex WeirNatalie von Goetz
Jun 26, 2012·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·L CalzolaiF Rossi
Dec 7, 2013·Analytical Chemistry·Francisco LabordaJavier Jiménez-Lamana
Mar 29, 2014·Journal of Food and Drug Analysis·Tao ChenYan Li
Jun 17, 2014·Journal of Agricultural and Food Chemistry·Ruud J B PetersHans Bouwmeester
Jan 3, 2015·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Bozena SmolkovaMaria Dusinska
Jan 28, 2015·Food Chemistry·Agnieszka DudkiewiczThomas P J Linsinger
Mar 5, 2015·Journal of Agricultural and Food Chemistry·Jin-Hee LimSean W Linder
Sep 6, 2015·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·D B WarheitE M Donner
Sep 12, 2015·Journal of Nanoscience and Nanotechnology·Xuhong ChangBei Wang

❮ Previous
Next ❯

Citations

Aug 21, 2019·Nanomaterials·Ji-Soo HwangSoo-Jin Choi
May 28, 2020·Food Additives & Contaminants. Part B, Surveillance·Şana SungurMuaz Koroglu
Oct 11, 2020·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Estefany I Medina-ReyesJosé Pedraza-Chaverri
May 13, 2021·EFSA Journal·UNKNOWN EFSA Panel on Food Additives and Flavourings (FAF)Matthew Wright

❮ Previous
Next ❯

Methods Mentioned

BETA
electron microscopy
X-ray

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
William DudefoiMarie-Hélène Ropers
© 2022 Meta ULC. All rights reserved