biostudies-literatureUnknown16Zhang LThis work sought to identify the influence of roasting on lipid oxidation-derived volatile compounds in fragrant rapeseed oils (FROs) via gas chromatography-mass spectrometry and gas chromatography-ion mobility spectrometry. Seven volatiles could be regard as aroma-active compounds by application of odor activity value (OAV ≥ 1) calculation, and caused fatty-like, nutty-like, and green-like notes. After 60 min of roasting, the OAVs of hexanal, octanal, (E,E)-2,4-heptadienal, and nonanal in FROs were greater than 3. The same compounds, including hexanal, (E,E)-2,4-heptadienal, nonanal, 1-octanol, and nonanoic acid were also detected in the model systems of lipid oxidation. Notably, the values of <i>p</i>-anisidine, conjugated dienes, and conjugated trienes increased significantly (<i>p</i> Food chemistry: X100491https://www.ebi.ac.uk/biostudies/studies/S-EPMC9626899biostudies-literatureLipid oxidation in fragrant rapeseed oil: Impact of seed roasting on the generation of key volatile compounds.PMC9626899Sagymbek ADu SChen JZhang JGao YLi QZhang LYu XfalseLipid oxidation in fragrant rapeseed oil: Impact of seed roasting on the generation of key volatile compounds.This work sought to identify the influence of roasting on lipid oxidation-derived volatile compounds in fragrant rapeseed oils (FROs) via gas chromatography-mass spectrometry and gas chromatography-ion mobility spectrometry. Seven volatiles could be regard as aroma-active compounds by application of odor activity value (OAV ≥ 1) calculation, and caused fatty-like, nutty-like, and green-like notes. After 60 min of roasting, the OAVs of hexanal, octanal, (E,E)-2,4-heptadienal, and nonanal in FROs were greater than 3. The same compounds, including hexanal, (E,E)-2,4-heptadienal, nonanal, 1-octanol, and nonanoic acid were also detected in the model systems of lipid oxidation. Notably, the values of <i>p</i>-anisidine, conjugated dienes, and conjugated trienes increased significantly (<i>p</i> 2022-01-01T00:00:00Z2022 Dec2025-04-27T01:48:45.762Z2025-04-06T18:20:13.107ZS-EPMC96268993633932210.1016/j.fochx.2022.100491