Detection and Estimation of Metanil Yellow & Congo Red: Carcinogenic Food Colourants, Present in Different Food Samples

Nowadays adulteration is a social disease which is applied on food to make food more attractive and to gain more profit from it. Along with different processed food products, Spices like Turmeric powder, red chilli powder, etc. provides good nutrition to us until they are treated with some foreign colours or organic colours to make them adulterated, which causes various detrimental effects in physiological system such as heart failure, liver damage, cancer and many more, if people consume them over a certain period of time. Metanil yellow, Sudan red dye, Congo red are such organic dyes which are used abundantly in different spices and processed food products. These dyes are toxic chemicals and could be carcinogenic as well. The presence of all these components can be detected with chemical experiments. This present research study is focused on the detection of adulterants present in sample on the basis of pH variation of adulterated food sample from the pure one and its estimation by variation of spectrophotometric absorbance with the concentration of the adulterant in the sample. After testing samples with different concentration of adulterants, it has been observed that pH of samples is gradually increasing with the increase in concentration of adulterants from 0 to 16.66 gm/100gm present in the sample.

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Photocatalytical Degradation of Congo Red Azo Dye Using Phosphono-Aminoacid-Cd(II) Pendant Groups Grafted on a Polymeric Support

Revista de Chimie ◽

10.37358/rc.19.10.7578 ◽

2019 ◽

Vol 70 (10) ◽

pp. 3473-3476 ◽

Cited By ~ 1

Author(s):

Laura Cocheci ◽

Lavinia Lupa ◽

Aniela Pop ◽

Aurelia Visa ◽

Bianca Maranescu ◽

...

Keyword(s):

Aqueous Solution ◽

Congo Red ◽

Azo Dye ◽

Organic Dyes ◽

Degradation Process ◽

Polymer Support ◽

Polymeric Support ◽

Vis Spectroscopy ◽

Red Dye ◽

Scanning Electron

In the present study, a new compound was used for decontaminating water polluted by Congo Red dye. Phosphono-aminoacid-Cd(II) pendant groups grafted on a polymeric support was prepared using impregnation of a polymer support functionalized with phosphono-aminoacid groups with an aqueous solution of Cd(NO3)2x4H2O. The catalyst was characterized by Fourier transform infrared ray, scanning electron microscope, termogravimetric analysis UV-Vis spectroscopy. The results suggest that the studied material could efficiently be used as photocatalyst in the degradation process of waters containing organic dyes under UV-Vis light irradiation.

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The Toolbox of Methods for Multidirectional Characterization of Dietary Nucleic Acids; Verification for Raw and Processed Food Products

Food Analytical Methods ◽

10.1007/s12161-021-01988-4 ◽

2021 ◽

Author(s):

Joanna Cieślewicz ◽

Zuzanna Koziara ◽

Wiktoria Ćwiklińska ◽

Agnieszka Bartoszek

Keyword(s):

Nucleic Acids ◽

Nuclear Dna ◽

Methodological Approach ◽

Food Products ◽

Food Samples ◽

Systematic Evaluation ◽

Processed Meat ◽

Processed Food ◽

Food Component

AbstractCurrently, the nutritional value of food is associated mainly with components such as proteins, carbohydrates, and lipids. However, another important macromolecules present in many foods are dietary nucleic acids (dietNA), i.e., DNA as well as both coding and non-coding RNAs. In the context of food chemistry and nutrition, dietNA are nowadays vastly neglected. In consequence, there are no dedicated methodologies to characterize dietNA. In this study, using raw or processed meat and plant products as model foodstuffs, we developed a toolbox of methods borrowed from other fields (histology, toxicology, molecular biology) that enable the initial characterization of dietNA as a necessary step on the way to systematic evaluation of their nutritional role. The proposed set of methods embraces (i) paraffin embedding of food samples and their staining to visualize the distribution and variety of dietNA in situ; (ii) comet assay to assess integrity of nuclear DNA with possible detection of DNA damage; (iii) dietNA isolation with and without RNAse digestion to determine the content of both DNA and RNA; (iv) electrophoretic separation of isolates to profile dietNA fragments. Such a combined methodological approach revealed clear differences between dietNA derived from raw and processed food products. We believe that the presented set of methods will encourage the broader research on dietNA to understand their role as a nutritionally relevant food component.

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Photocatalytical Degradation of Congo Red Azo Dye Using Phosphono-Aminoacid-Cd(II) Pendant Groups Grafted on a Polymeric Support

Revista de Chimie ◽

10.37358/rc.19.10.3473 ◽

2019 ◽

Vol 70 (10) ◽

pp. 3473-3476 ◽

Cited By ~ 1

Keyword(s):

Aqueous Solution ◽

Congo Red ◽

Azo Dye ◽

Organic Dyes ◽

Degradation Process ◽

Polymer Support ◽

Polymeric Support ◽

Vis Spectroscopy ◽

Red Dye ◽

Scanning Electron

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An effective method for determining the retention and distribution of cellulose nanofibrils in paper handsheets by dye labeling

TAPPI Journal ◽

10.32964/tj17.03.157 ◽

2018 ◽

Vol 17 (03) ◽

pp. 157-164 ◽

Cited By ~ 3

Author(s):

Shengdan Wang ◽

Wenhua Gao ◽

Kefu Chen ◽

Jinsong Zeng ◽

Jun Xu ◽

...

Keyword(s):

Correlation Coefficient ◽

Congo Red ◽

Kraft Pulp ◽

Cellulose Nanofibrils ◽

Standard Curve ◽

Congo Red Dye ◽

Mechanical Disintegration ◽

Softwood Kraft Pulp ◽

White Water ◽

Red Dye

Cellulose nanofibrils (CNF) were prepared by cellulase in conjunction with mechanical disintegration from the bleached softwood kraft pulp and labelled by Congo red dye. The labelled CNF were used to investigate the retention and distribution of CNF in paper handsheets. The retention of the labelled CNF was obtained by measuring the absorbance of white water using an ultraviolet-visible spectrophotometer. The results showed that this method for measuring the retention was rapid, feasible, and sensitive, owing to the high correlation coefficient R2 (0.9993) of the standard curve. The labelled CNF showed even distribution in paper handsheets. The colorimetric values of paper handsheets were explored with a residual ink analyzer.

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Degradation of Congo Red Dye in Aqueous Solution by Using Phytoremediation Potential of Chara Vulgaris

Chitkara Chemistry Review ◽

10.15415/ccr.2013.11005 ◽

2013 ◽

Vol 1 (1) ◽

pp. 67-75 ◽

Cited By ~ 7

Author(s):

Pooja Mahajan ◽

Jyotsna Kaushal

Keyword(s):

Aqueous Solution ◽

Congo Red ◽

Chara Vulgaris ◽

Congo Red Dye ◽

Red Dye

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Associations Between Sales of Ultra-Processed Food Products and Prevalence of Adiposity and Diabetes Mellitus: A Panel Analysis of 76 Countries Between 2001-2016

SSRN Electronic Journal ◽

10.2139/ssrn.3397190 ◽

2019 ◽

Cited By ~ 1

Author(s):

Kai Schulze ◽

Jean Adams ◽

Martin White

Keyword(s):

Diabetes Mellitus ◽

Food Products ◽

Panel Analysis ◽

Processed Food

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Catalytic influence of iron loaded sba-15 for the photodegradation of congo red dye

International Journal of Pharma and Bio Sciences ◽

10.22376/ijpbs.2017.8.1.p118-124 ◽

2017 ◽

Vol 8 (1) ◽

Author(s):

A.R. SASIEEKHUMA R ◽

T.SOMANATHA N ◽

M. SHANMUGA M

Keyword(s):

Congo Red ◽

Congo Red Dye ◽

Red Dye

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Functionalization of Congo red dye as a light harvester on solar cell

Open Chemistry ◽

10.1515/chem-2020-0034 ◽

2020 ◽

Vol 18 (1) ◽

pp. 287-294

Author(s):

Harsasi Setyawati ◽

Handoko Darmokoesoemo ◽

Irmina Kris Murwani ◽

Ahmadi Jaya Permana ◽

Faidur Rochman

Keyword(s):

Solar Cell ◽

Congo Red ◽

Large Scale ◽

High Efficiency ◽

Solar Cell Device ◽

Dye Sensitized ◽

Congo Red Dye ◽

Elemental Analyses ◽

Red Dye ◽

Solar Cell Technology

AbstractThe demands of ecofriendly technologies to produce a reliable supply of renewable energy on a large scale remains a challenge. A solar cell based on DSSC (Dye-Sensitized Solar Cell) technology is environmentally friendly and holds the promise of a high efficiency in converting sunlight into electricity. This manuscript describes the development of a light harvester system as a main part of a DSSC. Congo red dye has been functionalized with metals (Fe, Co, Ni), forming a series of complexes that serve as a novel light harvester on the solar cell. Metal-congo red complexes have been characterized by UV-VIS and FTIR spectroscopy, and elemental analyses. The performance of metal complexes in capturing photons from sunlight has been investigated in a solar cell device. The incorporation of metals to congo red successfully improved of the congo red efficiency as follows: Fe(II)-congo red, Co(II)-congo red and Ni(II)-congo red had efficiencies of 8.17%, 6.13% and 2.65%, respectively. This research also discusses the effect of metal ions on the ability of congo red to capture energy from sunlight.

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