Premium
Processing effects on the polyaromatic hydrocarbon content of grapeseed oil
Author(s) -
Moret S.,
Dudine A.,
Conte L. S.
Publication year - 2000
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-000-0203-5
Subject(s) - chemistry , pyrene , environmental chemistry , pomace , raw material , contamination , hydrocarbon , fraction (chemistry) , polycyclic aromatic hydrocarbon , pulp and paper industry , chromatography , food science , organic chemistry , ecology , biology , engineering
Grapeseed oil can occasionally have dangerous levels for human health of polycyclic aromatic hydrocarbons (PAH) due to the drying process, which involves direct contact with combustion gases. Oil samples extracted from grapeseeds before and after drying were analyzed for their PAH content with a new, fast, bi‐dimensional liquid chromatography method. Samples collected before drying had relatively high PAH amounts; Benzo(a)pyrene (BaP) content ranged from 0.9 to 2.4 ppb with an average of 1.4 ppb. The high contamination level found in the raw material is probably due to the practice of compacting pomace with bulldozers to reduce its volume before storage. The drying process did not significantly influence the light PAH content, but caused a large increase of the heavy fraction. BaP with an average content of 20.2 ppb, had the largest increase.