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Abstract
Content: Rosa damascena Mill. (Rosaceae) is an important ornamental and medicinal plant and a source of fragrance. Its hydrosol is known in Iran as golab (rose water) and has applications in religious ceremonies, food, and pharmaceuticals. Hydrosol is traditionally and industrially produced by distillation. The increase in market demand has led to production of inferior products for hydrosol that contain synthetic essences or essential oils of other plants, or that have been diluted with water. Inferior product often may be distinguished via its color changes and weak odor. However, details need to be determined by chemical analysis.
Objective: The current study evaluated the composition and quality of 10 rose water samples purchased from local markets in Shiraz, capital of Fars province in Iran.
Materials and methods: The essential oils of the samples were extracted and analyzed using gas chromatography-mass spectrometry.
Results: Results revealed that phenethyl alcohol, geraniol, and β-citronellol were the main constituents of most samples. In total, 22 constituents were detected and identified in the samples. Identification was determined for 60.97–96.07% of the essential oil components.
Discussion and conclusion: It was concluded that Pelargonium and Dianthus essential oils and synthetic essences had been added to some samples. Dibutyl phthalate was also detected in most samples. This substance, which commonly exists as polyethylene terephthalate, may have been released into the samples from their containers.