Article (Scientific journals)
Reliability of the ΔeCN42 limit and global method for extra virgin olive oil purity assessment using different analytical approaches
Beccaria, M.; Moret, E.; Purcaro, Giorgia et al.
2016In Food Chemistry, 190, p. 216-225
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Keywords :
Authenticity; Delta-ECN42; Global method; High performance liquid chromatography (HPLC); Mass spectrometry (MS); Olive oil; Refractive index detector (RID); Triacyglycerol (TAG); Chromatography; High performance liquid chromatography; Liquid chromatography; Mass spectrometry; Oils and fats; Refractive index; Analytical approach; Extra virgin olive oil; Global methods; Instrumental approach; Partition numbers; Article; Chromatography, High Pressure Liquid; Plant Oils
Abstract :
[en] Two data elaboration approaches for evaluating olive oils authenticity were compared: (I) determination of the difference between the theoretical and actual amounts of triacylglycerols with partition number 42 (ΔECN42 ≤ |0.2|); and (II) the global method, which considers also partition numbers 44 and 46 (returning a "correct"/"not correct" result). Analysis of 31 genuine extra virgin olive oil samples was performed using different analytical methods, namely liquid chromatography (LC) coupled with a refractive index detector (RID) and LC coupled with a mass spectrometry (MS), and the results compared. Several false positives were highlighted using the ΔECN42 limit with both instrumental approaches. The global method algorithm returned "correct" results for all the samples analysed (except two that gave no results) with LC-MS; on the other hand, 10 false positives were obtained elaborating data deriving from NARP-LC-RID analysis. © 2015 Elsevier Ltd. All rights reserved.
Disciplines :
Chemistry
Food science
Author, co-author :
Beccaria, M.;  Dipartimento di Scienze Del Farmaco e Dei Prodotti per la Salute (SCIFAR), University of Messina, Viale Annunziata, Messina, 98168, Italy
Moret, E.;  Dipartimento di Scienze Degli Alimenti, University of Udine, Via Sondrio 2/A, Udine, 33100, Italy
Purcaro, Giorgia  ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie des agro-biosystèmes
Pizzale, L.;  Dipartimento di Scienze Degli Alimenti, University of Udine, Via Sondrio 2/A, Udine, 33100, Italy
Cotroneo, A.;  Dipartimento di Scienze Del Farmaco e Dei Prodotti per la Salute (SCIFAR), University of Messina, Viale Annunziata, Messina, 98168, Italy
Dugo, P.;  Dipartimento di Scienze Del Farmaco e Dei Prodotti per la Salute (SCIFAR), University of Messina, Viale Annunziata, Messina, 98168, Italy, Centro Integrato di Ricerca (C.I.R.), Università Campus Bio-medico, via Alvaro del Portillo 21, Roma, 00128, Italy
Mondello, L.;  Dipartimento di Scienze Del Farmaco e Dei Prodotti per la Salute (SCIFAR), University of Messina, Viale Annunziata, Messina, 98168, Italy, Centro Integrato di Ricerca (C.I.R.), Università Campus Bio-medico, via Alvaro del Portillo 21, Roma, 00128, Italy
Conte, L. S.;  Dipartimento di Scienze Degli Alimenti, University of Udine, Via Sondrio 2/A, Udine, 33100, Italy
Language :
English
Title :
Reliability of the ΔeCN42 limit and global method for extra virgin olive oil purity assessment using different analytical approaches
Publication date :
2016
Journal title :
Food Chemistry
ISSN :
0308-8146
eISSN :
1873-7072
Publisher :
Elsevier Ltd
Volume :
190
Pages :
216-225
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
PRIN 2009: Advanced analytical and chemometric techniques applied to the assessment of triacylglycerol and linear esters profiles in edible oils as a tool for purity assessment and geographical traceability.
Funders :
Italian Ministry of University and Scientific Research
Available on ORBi :
since 17 January 2019

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