Chemical profiling of Bulgarian rose absolute (Rosa damascena Mill.) using gas chromatography–mass spectrometry and trimethylsilyl derivatives

Add time:07/25/2019    Source:sciencedirect.com

Rosa damascena Mill. is one of the most important plants from Rosaceae family, with a long historical use in the traditional medicine and as a valuable oil bearing plant. The rose scent derived as oil, concrete or absolute, is one of the world most sought-after products and the development of reliable analytical methods for the origin assessment and quality assurance is of substantial fundamental and practical interest.A comprehensive chemical profiling of Bulgarian rose absolute (Rosa damascena Mill.) was performed by means of GC/MS and GC–FID. A protocol for simultaneous analysis of compounds with high structural diversity and volatility, involving a multistep temperature gradient and trimethylsilyl derivatives was applied for this purpose. As a result 132 compounds, mainly mono- and sesquiterpenoids were identified. The main constituents, representing 80.0–95.5% of the total content of the detected compounds, were quantified by means of GC-FID. The developed approach was applied to rose absolute samples from Egypt and Morocco, as well. The specific chromatographic fingerprint, characteristic for the country of production (climatic-geographical origin) could be used for a fast classification of the rose absolute and for authenticity control.

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