DETECTION OF ADULTERATION OF VEGETABLE OILS WITH RAPESEED OIL BY GAS LIQUID CHROMATOGRAPHY | ||||
| Egyptian Journal of Agricultural Research | ||||
| Article 23, Volume 72, Issue 1, March 1994, Page 235-244 PDF (2.27 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejar.1994.445455 | ||||
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| Authors | ||||
| MONUER F. KHALIL; SOHER H. KANDIL | ||||
| Horticulture Research Institute, Agriculture Research Centre, Giza, Egypt. | ||||
| Abstract | ||||
| Gas liquid chromatography (GLC) was used for the detection of rapeseed oil added to olive oil, corn oil and cottonseed oil. The chromatograms of the unsaponifiable matter could be divided into two parts representing hydrocarbons and sterols. Squalene as hydrocarbon, brassicasterol, campesterol and B-sitosterol as sterols , also the ratio of TH/Ts were used for the detection of adulteration of olive oil with rapeseed oil. in fatty acid analysis, oleic acid, linoleic acid and the ratio of OIL, also linoleic to total unsaturated ratios were used as a safe criterion for eventual adulteration of corn oil and cottonseed oil with rapeseed oil. | ||||
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