Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/244198
Type: Artigo de periódico
Title: Carbon Disulfide Formation In Papaya Under Conditions Of Dithiocarbamate Residue Analysis
Author: Abakerli
R. B.; Sparrapan
R.; Sawaya
A. C. H. F.; Eberlin
M. N.; Jara
J. L. P.; Rodrigues
N. R.; Fay
E. F.; Luiz
A. J. B.; Galvao
T. D. L.; Martins
D. dos S.; Yamanishi
O. K.; Toledo
H. H. B.
Abstract: Golden, Sunrise Solo and Tainung cultivars of papaya were found to release CS2 when submitted to experimental conditions of dithiocarbamate residue analysis. Three common analytical methods were used to quantitate CS2; one spectrophotometric method and two chromatographic methods. All three methods gave positive CS2 results for all three papaya varieties. Other endogenous compounds present in isooctane extracts of papaya fractions detected via gas chromatography (GC/ITD) using electron ionization (El) were: carbonyl sulfide, dimethyl sulfide, carbon disulfide, 2-methylthiophene, 3-methylthiophene, 2-ethylthiophene, 3-ethylthiophene, benzylisothiocyanate, benzylthiocyanate and benzonitrile. Control samples were obtained from papaya plantations cultivated in experimental areas, in which no treatment with fungicides of the dithiocarbamate group was applied. Endogenous CS2 levels were compared with true dithiocarbamate residues measured in papaya samples from the field trials following applications of the mancozeb fungicide. Three days after application, true dithiocarbamate residues, measured by the procedure with isooctane partitioning and GC-ITD, were at the average level of 2 mg kg(-1). (C) 2015 Elsevier Ltd. All rights reserved.
Subject: Benzyl Isothiocyanate
Evolution Method
Carica-papaya
Glucosinolate
Fungicides
Fruit
Food
Cs2
Country: OXFORD
Editor: ELSEVIER SCI LTD
Citation: Carbon Disulfide Formation In Papaya Under Conditions Of Dithiocarbamate Residue Analysis. Elsevier Sci Ltd, v. 188, p. 71-76 DEC-2015.
Rights: embargo
Identifier DOI: 10.1016/j.foodchem.2015.04.059
Address: http://www.sciencedirect.com/science/article/pii/S0308814615006056
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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