A study on the impact of harvesting operations on the mineral oil contamination of olive oils

•Oil extracted from olives sampled from the tree showed low concentrations of MOSH.•Lubricants used in harvesting operations are a significant source of MOH.•HPLC-GC-FID is a valid tool for identifying the sources of contamination.•GC × GC confirmed contamination sources and allowed insight characte...

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Bibliographic Details
Published in:Food chemistry 2023-04, Vol.406, p.135032-135032, Article 135032
Main Authors: Menegoz Ursol, Luca, Conchione, Chiara, Peroni, Daniela, Carretta, Andrea, Moret, Sabrina
Format: Article
Language:English
Subjects:
Chromatography, Gas - methods
Contamination
Food Contamination - analysis
GC×GC-FID/MS
Hydrocarbons, Aromatic - analysis
Mineral oil
Mineral Oil - chemistry
MOAH
MOSH
Olive harvesting
Olive Oil - analysis
On-line LC-GC-FID
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Summary:•Oil extracted from olives sampled from the tree showed low concentrations of MOSH.•Lubricants used in harvesting operations are a significant source of MOH.•HPLC-GC-FID is a valid tool for identifying the sources of contamination.•GC × GC confirmed contamination sources and allowed insight characterization of MOH.•Minimization of contamination is possible by good harvesting practices. During the 2020–21 olive oil campaign, the contribution of harvesting operations to mineral oil saturated (MOSH) and aromatic hydrocarbon (MOAH) contamination was studied. Oils extracted from hand-picked olives (15 different olive groves) generally had background MOSH (
ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2022.135032