| Title: | Residual solvent or intrinsically formed during production: analysing volatile compounds in unrefined vegetable oils using headspace gas chromatography coupled with mass spectrometry |
| Author(s): | Flecker T; Schicher M; Leitner E; Wagner FS; |
| Address: | "a Department of Research and Development , Institut Dr. Wagner Lebensmittel Analytik GmbH , Lebring , Austria. b Institute of Analytical Chemistry and Food Chemistry , Graz University of Technology , Graz , Austria" |
| Journal Title: | Food Addit Contam Part A Chem Anal Control Expo Risk Assess |
| DOI: | 10.1080/19440049.2019.1619937 |
| ISSN/ISBN: | 1944-0057 (Electronic) 1944-0057 (Linking) |
| Abstract: | "Vegetable oils are an essential part of a healthy and balanced diet and have major economic significance. The type of production, whether performed by extraction with solvents, or by mechanical techniques, significantly influences the quality of the oil and its potential field of use. Occasionally, volatile organic substances, which are considered indicative for an oil that has been produced by solvent extraction, are detected in unrefined vegetable oils. This can have a negative impact on high-quality oil mills and their reputation. The goal of the study was to analyse unrefined oils of different raw materials for such compounds. A previously developed and validated method using headspace gas chromatography coupled with a mass spectrometry was used for this task. Another aim was to determine the origin of any solvent residues in the vegetable oils and to find ways to avoid them. Complementary measurements by solid phase micro extraction gas chromatography were conducted to compare the results of the measurements to an orthogonal methodology. Multivariate data analysis was used to find correlations between the spectrum of substances in the oil and other parameters like the producer of the oil or the pattern of fatty acids" |
| Keywords: | Gas Chromatography-Mass Spectrometry Plant Oils/*chemistry Solvents/chemistry Volatile Organic Compounds/*analysis Unrefined vegetable oil headspace-gas chromatography mass spectrometry solvent residue triglyceride degradation volatiles; |
| Notes: | "MedlineFlecker, Thomas Schicher, Maximilian Leitner, Erich Wagner, Franz Siegfried eng England 2019/05/30 Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2019 Jul; 36(7):996-1008. doi: 10.1080/19440049.2019.1619937. Epub 2019 May 29" |
