Browsing by Author "Swarcewicz, Maria"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Comparison of extraction methods for the determination of essential oil content and composition of lavender leaves
    (Видавництво Львівської політехніки, 2013) Adaszyńska-Skwirzyńska, Michalina; Śmist, Małgorzata; Swarcewicz, Maria
    In this paper, comparison of the volatile components composition in the samples obtained by hydrodistillation of Lavandula angustifolia leaves is described. The comparison of the lavender essential oil obtained by hydrodistillation in the Deryng and Clevenger type apparatus, according to the pharmacopoeial methods (FP VI and VII), showed the presence of the same terpenoids in both essential oils, however, the relative percentage composition of the components were different. The oils contain 37 identified compounds, of which the main are: borneol and caryophyllene oxide. Most of the compounds identified in the oils belong to monoterpenoids group (61.9-71.09%). The essential oils yields, measured after distillation according to Polish Pharmacopoeia VI (Deryng apparatus, 3 h) and VII (Clevenger type apparatus, 2 h), were the same and amounted to 0.45% v/w.
  • Thumbnail Image
    Item
    The possibilities of using essential oils as an active ingredients or preservatives in cosmetic products
    (Видавництво Львівської політехніки, 2011) Adaszyńska, Michalina; Swarcewicz, Maria
    An important trend in the development of the cosmetics industry is searching for new biologically active, natural compounds and preservative systems, which will find application in the natural cosmetics production. Natural cosmetics are of considerable interest nowadays and essential oils could be employed in theirs production. The huge potential of essential oils indicates the possibility of applying them in practice because of theirs antibacterial, antiseptic, antifungal, and antioxidant activities. This paper presents the activity of the essential oil of mint.