Fried food
Researchers from the University of Basque, Spain, have conducted an experiment into different cooking oils and discovered that compounds known as aldehydes released from the oils increase the risk of neurologic degenerative diseases and several different cancers.
Researchers from the University of Basque, Spain, have conducted an experiment into different cooking oils and discovered that compounds known as aldehydes released from the oils increase the risk of neurologic degenerative diseases and several different cancers.1
Three types of oil (extra virgin olive, sunflower and virgin linseed oils) were examined and subjected to 190 °C for an extended period of time. The oils were then analysed using gas chromatography–mass spectrometry. This was the first time that the presence of 4-oxo‑(E)-2‑decenal and 4-oxo-(E)-2-undecenal have been detected, not only in frying oils, but also in foods. In addition, the concentration of aldehydes such as 4-hydroxy-(E)-2-nonenal, (E)-4,5-epoxy‑(E)‑2‑decenal, 4-hydroxy-(E)-2‑hexenal and 4-oxo-(E)-2-nonenal have been determined simultaneously for the first time in these oils submitted to frying temperature.
The team concluded that the significant concentration of these toxic compounds, particularly in sunflower and virgin linseed oils, is a cause for concern.
1. Maria D. Guillén, Patricia S. Uriarte, Food Chemistry, 131(3), 915 (2012).
This story originally appeared in The Column. Click here to view that issue.
Best of the Week: Food Analysis, Chemical Migration in Plastic Bottles, STEM Researcher of the Year
December 20th 2024Top articles published this week include the launch of our “From Lab to Table” content series, a Q&A interview about using liquid chromatography–high-resolution mass spectrometry (LC–HRMS) to assess chemical hazards in plastic bottles, and a piece recognizing Brett Paull for being named Tasmanian STEM Researcher of the Year.
Using LC-MS/MS to Measure Testosterone in Dried Blood Spots
December 19th 2024Testosterone measurements are typically performed using serum or plasma, but this presents several logistical challenges, especially for sample collection, storage, and transport. In a recently published article, Yehudah Gruenstein of the University of Miami explored key insights gained from dried blood spot assay validation for testosterone measurement.
Determination of Pharmaceuticals by Capillary HPLC-MS/MS (Dec 2024)
December 19th 2024This application note demonstrates the use of a compact portable capillary liquid chromatograph, the Axcend Focus LC, coupled to an Agilent Ultivo triple quadrupole mass spectrometer for quantitative analysis of pharmaceutical drugs in model aqueous samples.
