Results 11 to 20 of about 2,730 (221)

Electrochemical Reduction as a Powerful Tool to Highlight the Possible Formation of By-Products More Toxic Than Sudan III Dye

open access: goldInternational Journal of Electrochemical Science, 2012
The present work describes the electrochemical reduction of the azo dye Sudan III in methanol/0.01 mol l-1 Bu4NBF4 at applied potential of -1.2V, which promotes 98% discoloration of the commercial sample.
Thiago M. Lizier   +3 more
doaj   +2 more sources

Anaerobic metabolism of 1-amino-2-naphthol-based azo dyes (Sudan dyes) by human intestinal microflora. [PDF]

open access: yesAppl Environ Microbiol, 2007
ABSTRACT The rates of metabolism of Sudan I and II and Para Red by human intestinal microflora were high compared to those of Sudan III and IV under anaerobic conditions. Metabolites of the dyes were identified as aniline, 2,4-dimethylaniline, o -toluidine, and 4-nitroaniline through high-performance ...
Xu H   +4 more
europepmc   +4 more sources

STUDY ON THE UV-VIS SPECTROSCOPIC PROPERTIES OF SUDAN III AND SUDAN IV DYES IN DIFFERENT ORGANIC SOLVENTS

open access: diamondJournal of Chemical Society of Nigeria
Uv/vis spectroscopy is a simple, low cost technique that can be used to identify and quantify adultrants such as azo dyes in foods. In this study, the ultraviolet-visible absorption spectral properties of Sudan III and Sudan IV dyes in non-polar solvent hexane, moderately polar solvent acetonitrile, and highly polar solvent ethanol were investigated ...
Asiriuwa, N. U.   +3 more
openaire   +4 more sources

ENVIRONMENTAL EFFECT OF SUDAN I-IV: ADSORPTION BEHAVIORS AND POTENTIAL RISK ON SOIL [PDF]

open access: yesActa Scientifica Malaysia, 2017
Sudan dyes (Table 1) [1], a class of synthetic azo dyes and classified as category 3 carcinogens by the International Agency for Research on Cancer[2], have been received considerable attention all over the world, especially in the past decade, which are
Yong, Qixing
doaj   +1 more source

Multifunctional Carbon Dots-Based Fluorescence Detection for Sudan I, Sudan IV and Tetracycline Hydrochloride in Foods

open access: yesNanomaterials, 2022
Sudan dyes are strictly prohibited from being added to edible products as carcinogens and tetracycline hydrochloride (TC) remaining in animal-derived food may cause harm to the human body.
Min Zhang   +5 more
doaj   +1 more source

Preparation of Polyamidoamine Dendrimer Modified Magnetic Nanoparticles and Its Application for Reliable Measurement of Sudan Red Contaminants in Natural Waters at Parts-Per-Billion Levels

open access: yesFrontiers in Chemistry, 2021
The health threat from Sudan red dyes has been the subject of much attention in recent years and is crucial to design and establish reliable measurement technologies.
Yalin Wu   +12 more
doaj   +1 more source

A Short Communication: Contamination and Toxicity Pigment Red 53, Rhodamine B, and Sudan III in Indonesian Cosmetics

open access: yesJurnal Serambi Engineering, 2023
The high sales of cosmetic products in the world are not directly proportional to the good quality of cosmetic products. The The Food and Drug Administration (BPOM) declared, from October 2021 to August 2022 as many as 1 million pieces of cosmetic ...
Elanda Fikri, Yura Witsqa Firmansyah
doaj   +1 more source

Determination of Sudan I and II in Food by High-Performance Liquid Chromatography after Simultaneous Adsorption on Nanosilica

open access: yesJournal of Analytical Methods in Chemistry, 2021
Analytical techniques for analyte quantification are often complex, time-consuming, and costly. Further, samples must be carefully prepared to make them suitable for each analytical technique, thus increasing complexity and cost and often requiring toxic
Thi Chuyen Pham   +3 more
doaj   +1 more source

Determination of banned dyes in spices by liquid chromatography-mass spectrometry

open access: yesCzech Journal of Food Sciences, 2007
A simple and rapid multiresidue method for the determination of nine banned synthetic dyes in various spices has been developed. Reversed phase HPLC coupled with mass spectrometry (tandem in time-ion trap mass analyser) was employed for the examination ...
Petr Botek, Jan Poustka, Jana Hajšlová
doaj   +1 more source

Melatonin reverses mitochondria dysfunction and oxidative stress-induced apoptosis of Sudan I-exposed mouse oocytes

open access: yesEcotoxicology and Environmental Safety, 2021
Sudan I is one of the industry dyes and widely used in cosmetics, wax agent, solvent and textile. Sudan I has multiple toxicity such as carcinogenicity, mutagenicity, genotoxicity and oxidative damage. However, Sudan I has been illegally used as colorant
Chun-Hua Xing   +6 more
doaj   +1 more source

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