Unpublished conference/Abstract (Scientific congresses and symposiums)
quantification and characterization of mineral oil in fish feed BY LC-GC-FID and LC-GC×GC-TOFMS/FID.
Bauwens, Grégory; Conchione, Chiara; Moret, Sabrina et al.
202118th Euro Fed Lipid Congress and Expo (On-line Meeting)
Peer reviewed
 

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Keywords :
Mineral oil hydrocarbons; LC-GC × GC; Data interpretation; Quantification; Comprehensive two-dimensional gas chromatography; Fish Feed; Sample preparation; microwave extraction/saponification
Abstract :
[en] Mineral oil is a ubiquitous food contaminant potentially toxic. It is generally divided into 2 classes: the aromatic hydrocarbons (MOAH) and the saturated hydrocarbons (MOSH). These compounds are currently under investigation by the European Union to determine their occurrence and their toxicity before legislating on the matter. Although the discussion is mainly focus on food, feed can contribute indirectly to human exposition to such a contaminant. In this study 22 different fish feed products were analysed (7 commercial feed, 5 feedstuff and 10 from experimental diets). The analyses were performed by LC-GC-FID and compared by two Universities involved in this project (Udine and Liege). Further investigation was performed by LC-GC×GC-TOFMS/FID to validate the novel proposed quantification with such a platform and for a more detailed characterization of the contamination [1]. Simultaneous saponification and extraction of the mineral oil fraction was performed by microwave-assisted saponification. The extract was divided into two aliquots to perform MOSH and MOAH analysis separately, The fraction for the MOAH analysis underwent offline epoxidation to remove the interferents, while the MOSH fraction was further purified by aluminum oxide when overloading alkanes were observed. The MOSH contamination observed ranged from 7 to 30 mg/kg while the MOAH contamination was ranging from 0.5 to 5 mg/kg. The data provided by the two laboratories were in good agreement, as well as the quantification performed with the LC- GC×GC-TOFMS/FID platform, along with extra characterization.
Research center :
Gembloux Agro-Bio Tech, University of Liege, Chimie des agro-biosystèmes
Disciplines :
Chemistry
Food science
Author, co-author :
Bauwens, Grégory ;  Université de Liège - ULiège > Département GxABT > Chimie des agro-biosystèmes
Conchione, Chiara;  University of Udine > Department of Agri-Food > Environmental and animal sciences
Moret, Sabrina;  University of Udine > Department of Agri-Food > Environmental and animal sciences
Purcaro, Giorgia  ;  Université de Liège - ULiège > Département GxABT > Chimie des agro-biosystèmes
Language :
English
Title :
quantification and characterization of mineral oil in fish feed BY LC-GC-FID and LC-GC×GC-TOFMS/FID.
Publication date :
21 October 2021
Event name :
18th Euro Fed Lipid Congress and Expo (On-line Meeting)
Event organizer :
Euro Fed Lipid
Event date :
from 18-10-2021 to 21-10-2021
Audience :
International
Peer reviewed :
Peer reviewed
Name of the research project :
CDR projects-MOHPlatform, J.0170.20
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 25 October 2021

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