## Abstract Volatile compounds were isolated from Cheddar cheese using direct thermal desorption (DTD) and analysed using comprehensive 2‐D GC (GC×GC) coupled with TOF MS (TOF/MS). In total 12 aldehydes, 13 acids, 13 ketones, 5 alcohols, 3 hydrocarbons and 9 miscellaneous compounds were identified
GC-MS headspace analysis of the volatile components of soya oil without heating the sample
✍ Scribed by Pinnel, Viviane ;Vandegans, Jacques
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 285 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0935-6304
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✦ Synopsis
Abstract
The analysis of volatile compounds, and particularly of certain hydrocarbons, e.g. pentane, and some aldehydes, e.g. hexanal, has been used to estimate the degree of oxidation of vegetable oil. We have tested a dynamic headspace technique without heating the sample during the purge time of the analysis. Some tests have been performed after heating the sample at 180°C for a specified time before the analysis, to compare the results of analysis with and without heating. The best results were obtained at room temperature.
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