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Secondary Metabolites Composition and Their Histochemical Localization in the Fruit of Piper malgassicum Papini, Palchetti, Gori and Rota Nodari (Piperaceae). [PDF]

Chem Biodivers
Falsini S, Ballantini S, Pittella A, Fico G, Giuliani C, Palchetti E, Gori M, Biricolti S, Corti E, Papini A, Calamai L, Innocenti M.   +11 more
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Lignin-based hydrophobic DESs extracts Sudan dyes from aqueous solution

International Journal of Biological Macromolecules, 2023
As a synthetic pigment, Sudan red is commonly used as a food additive and is harmful to the human kidney and can even cause cancer. In this work, we developed a one-step strategy to synthesize lignin-based hydrophobic deep eutectic solvents (LHDES), which were fabricated via methyltrioctylammonium chloride (TAC) as hydrogen bond acceptor and alkali ...
Zihao, Ma, Ying, Han, Fuqiong, Xu, Xing, Wang   +3 more
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“Fast peaks” in chromatograms of Sudan dyes

Journal of Chromatography A, 2007
The analysis of Sudan dyes has gained considerable attention during last years. In several publications multiple peaks in chromatograms of Sudan III and Sudan IV have been detected. It is demonstrated in this work that if the sample is kept in darkness before analysis, only one chromatographic peak appears for Sudan III or Sudan IV.
Kadi, Mölder, Allan, Künnapas, Koit, Herodes, Ivo, Leito   +3 more
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Synthesis of Deuterium-Labeled Azo Dyes of the Sudan Family

Synthesis, 2008
Carcinogenic amines are formed in vivo during the metabolism of Sudan azo dyes. The identification and assay of these polluting agents requires the availability of deuterated analogues. Accordingly, two series of derivatives labeled on the phenylazo and naphthol moieties were synthesized.
DE NINO, Antonio, DI DONNA, Leonardo, MAIUOLO, Loredana, MAZZOTTI F, SINDONA, Giovanni   +4 more
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The induction of cytochrome P450 1A1 by Sudan Dyes

Journal of Biochemical and Molecular Toxicology, 2008
AbstractAzo dyes form a major class of chemically related compounds that are ubiquitous in foods, paints, printing inks, cosmetics, and also used as biological stains in histological and histopathological laboratories and clinics. Sudan I, sudan III, and sudan IV have been classified as category 3 carcinogens by International Agency for Research on ...
Nahla A G Ahmed, Refat, Zein Shaban, Ibrahim, Gihan Gamal, Moustafa, Kentaro Q, Sakamoto, Mayumi, Ishizuka, Shoichi, Fujita   +5 more
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Comparison of the toxicity of the dyes Sudan II and Sudan IV to catalase

Journal of Biochemical and Molecular Toxicology, 2017
AbstractThe mechanisms of the toxicity of Sudan dyes to the key antioxidant enzyme catalase (CAT) were investigated by spectroscopic methods, calorimetry techniques, enzyme activity assay, and molecular docking. Results showed that Sudan dyes bound to CAT through hydrophobic force, which changed the microenvironment of tryptophan and tyrosine residues,
Tong, Li, Minglu, Hao, Jie, Pan, Wansong, Zong, Rutao, Liu   +4 more
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Electrochemical detection of Sudan red series azo dyes: Bibliometrics based analysis

Food and Chemical Toxicology, 2022
Sudan red azo dyes are banned from food because of their carcinogenic properties. It is necessary to establish a method for the detection of Sudan azo dyes in food. Among them, electrochemical sensing technology has become a very potential analytical method for food detection because of its fast, sensitive and low price.
Yin Shen, Shuduan Mao, Fei Chen, Shichao Zhao, Weitao Su, Li Fu, Najmeh Zare, Fatemeh Karimi   +7 more
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Production of the monoclonal antibody against Sudan 2 for immunoassay of Sudan dyes in egg

Analytical Biochemistry, 2012
Many methods have been reported to determine the residues of Sudan dyes in food samples. Among the reported methods, enzyme-linked immunosorbent assay (ELISA) was a frequently used practical screen tool. In this study, a novel hapten of Sudan 2 was synthesized by coupling 4-amino-3-methylbenzoic acid to β-naphthol, and the monoclonal antibody against ...
Jing, Liu, Huicai, Zhang, Dongsheng, Zhang, Feng, Gao, Jianping, Wang   +4 more
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Banned Sudan dyes in spices available at markets in Karachi, Pakistan

Food Additives & Contaminants: Part B, 2022
Sudan dyes were investigated in branded and non-branded spices, commonly available in the markets of Karachi, Pakistan. High performance liquid chromatography (HPLC) with a variable wavelength detector (VWD) was applied to determine Sudan dyes I-IV. The non-branded samples had higher concentrations of Sudan dyes than the maximum limits of 0.1 mg/kg ...
Asad Ullah, Malik Wajid Hussain Chan, Sadar Aslam, Ali Khan, Qamar Abbas, Shamsher Ali, Meher Ali, Abid Hussain, Zulfiqar Ali Mirani, Syed Sibt-e-Hassan, Mohib Reza Kazmi, Shaukat Ali, Shafqat Hussain, Abdul Majeed Khan   +13 more
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