Chemical characterization of a variety of cold-pressed gourmet oils available on the brazilian market
Different specialty extra virgin oils, produced by cold-pressing fruits/nuts (olive, pequi, palm, avocado, coconut,
macadamia and Brazil nut) and seeds (grapeseed and canola), and retailed in the Brazilian region of Minas
Gerais, were chemically characterized. Specifically, for each type of oil, the fatty acid composition was elucidated
by GC-FID, the contents of selected polyphenols and squalene were determined respectively by UHPLC-MS
and UHPLC-PDA, whereas minerals were explored by means of ICP-MS. Olive oil was confirmed to have the