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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.)

Evaluation of macro- and microelement levels for verifying the authenticity of organic eggs by using chemometric techniques

Full text
Author(s):
Borges, Endler Marcel [1, 2] ; Volmer, Dietrich A. [3] ; Gallimberti, Matheus [1] ; de Souza, Deise Ferreira [2] ; de Souza, Edson Luiz [2] ; Barbosa, Jr., Fernando [1]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Perto, Lab Toxicol & Essencialidade Metais, BR-1404903 Ribeirao Preto, SP - Brazil
[2] Univ Oeste Santa Catarina, Nucl Biotecnol, BR-89560000 Videira, SC - Brazil
[3] Univ Saarland, Inst Bioanalyt Chem, D-66123 Saarbrucken - Germany
Total Affiliations: 3
Document type: Journal article
Source: ANALYTICAL METHODS; v. 7, n. 6, p. 2577-2584, 2015.
Web of Science Citations: 6
Abstract

Elemental determination was carried out on 60 egg samples (37 organic and 23 non-organic), with the goal of identifying significant differences between the two types of eggs for classification purposes. Inductively coupled plasma-mass spectrometry was used for the determination of 19 elements, As, Ba, Ca, Co, Cr, Cu, Eu, Fe, K, Mg, Mn, Na, Ni, P, Rb, Se, Tl, V and Zn. As, Co, Fe, Mn, Rb, Se, Tl and V levels were found to be higher in organic versus non- organic eggs, while Cr and P levels were higher in regular versus organic samples. The remaining investigated elements exhibited statistically equivalent concentration levels in the two types of eggs. Principal component analysis (PCA) and soft independent modeling of class analogy (SIMCA) statistical techniques of the elemental fingerprints were readily able to discriminate organic from regular egg samples and can be used as alternative methods for adulteration evaluation. (AU)

FAPESP's process: 11/08467-0 - Chemical speciation analysis as a tool for identification and determination of Hg and as species in different biological samples aiming food safety and the toxicokinetics of ethylmercury
Grantee:Fernando Barbosa Júnior
Support Opportunities: Regular Research Grants
FAPESP's process: 14/00986-6 - Development of novel methodology for the routine monitoring of monohydroxy metabolites of polycyclic aromatic hydrocarbons in numerous urine samples
Grantee:Fernando Barbosa Júnior
Support Opportunities: Research Grants - Visiting Researcher Grant - International
FAPESP's process: 11/07416-2 - Evaluation of sample preparation procedures for Arsenic speciation in biological samples by LC-ICP-MS
Grantee:Fernando Barbosa Júnior
Support Opportunities: Regular Research Grants
FAPESP's process: 11/07466-0 - Determination of avermectins, milbemycins and amphenicols in fish filet: using LC-MS/MS
Grantee:Endler Marcel Borges de Souza
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 12/03465-1 - Novel methodology for the analysis of high-molecular weight polycyclic aromatic hydrocarbons in water and particulate matter samples based on Shpol'skii spectroscopy
Grantee:Fernando Barbosa Júnior
Support Opportunities: Regular Research Grants