Journal of the Brazilian Chemical Society | |
Characterization and quantification by gas chromatography of free steroids in unsaponifiable matter of vegetable oils | |
Kelly Da S. Bezerra1  Nelson R. Antoniosi Filho1  | |
关键词: phytosterols; saponification reaction; GC-FID; GC-MS; | |
DOI : 10.5935/0103-5053.20130288 | |
来源: SciELO | |
【 摘 要 】
The study of free steroids and their use in oil characterization is interesting because the distribution of these steroids varies from one oil to another. Although several papers analyze the most abundant steroids in oils, studies including less common steroids are scarce. Free steroids were extracted from unsaponifiable fraction using the saponification reaction adapted micro-scale. After extraction, steroids were characterized by gas chromatography (GC) using flame ionization (FID) and mass spectrometry (MS) detectors. All chromatographic peaks in the oils that could belong to free steroids were characterized and quantified. Results evidenced great diversity in types and levels of free steroids. Corn and moringa oils had higher levels of steroids than the other oils analyzed. Babassu, palm kernel and canola oils had the lowest steroid levels.
【 授权许可】
CC BY
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
RO202005130107266ZK.pdf | 399KB | download |