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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Screening method for simultaneous detection of elaidic and vaccenic trans fatty acid isomers by capillary zone electrophoresis

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Author(s):
Amorim, Tatiane Lima [1] ; Duarte, Lucas Mattos [1] ; Dos Santos, Helio F. [2] ; Leal de Oliveira, Marcone Augusto [1]
Total Authors: 4
Affiliation:
[1] Univ Fed Juiz de Fora, Dept Chem, Inst Exact Sci, GQAQ, BR-36036330 Juiz De Fora, MG - Brazil
[2] Univ Fed Juiz de Fora, Dept Chem, Inst Exact Sci, NEQC, BR-36036330 Juiz De Fora, MG - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Analytica Chimica Acta; v. 1048, p. 212-220, FEB 7 2019.
Web of Science Citations: 4
Abstract

A novel screening method for the simultaneous detection of elaidic and vaccenic trans fatty acid isomers by CZE-UV was proposed and applied to brazilian spreadable cheese analysis. Optimized background electrolyte was composed by 10 mmol L-1 heptakis (2, 3, 6-tri-o-methyl)-beta cyclodextrin, 24 mmol L-1 sodium tetraborate buffer solution, 45% methanol and 15% acetonitrile. Sample preparation comprised only a saponification reaction and dilution of sample solution before analysis. The method proved to be simple, environmental friendly and sensitive (LOD calculated for elaidic and vaccenic acid were 0.0163 mmol L-1 and 0.0169 mmol L-1, respectively) and may be used to detect adulteration in dairy products, where the addition of hydrogenated vegetable fat to food is prohibited. (C) 2018 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 14/50867-3 - INCT 2014: National Institute of Science and Technology in Bioanalysis
Grantee:Marco Aurelio Zezzi Arruda
Support Opportunities: Research Projects - Thematic Grants