STUDYING THE CHEMICAL COMPOSITION AND STABILITY OF LAVENDER ESSENTIAL OILS CULTURED IN UZBEKISTAN

orginal language: Uzbek

Abstract

One of the most widely used medicinal plants in modern medical practice for the effective treatment of depression is Lavender (Lavandula angustifolia Mill). The study of the chemical composition of the essential oils of the lavender plant, which grows in the climatic and soil conditions of the Fergana Valley, and the development of stable drugs based on this are one of the unsolved problems. The essential oil was extracted from the herb lavender, which was collected from the experimental field in Andijan district, through steam distillation. The yield of essential oil amounted to 3.8 ± 0.4% in relation to the dry raw material. Triple quadrupole gas chromatography - mass spectrometry was used to determine the chemical composition of lavender essential oil. Its main bioactive components are: 1,8-cineole, cis-linalool oxide, trans-linalool oxide, linalool, terpinen-4-ol, α-terpineol, linalyl acetate, geraniol, lavandulyl acetate, geranyl acetate and α-bisabolol and their quantity is 62.76%. Lavender essential oil was stored in glass vials in a hermetically sealed refrigerator at 8°C for 60 days. During storage, it was found that the content of the main bioactive components in it decreased by 8.71%. Obtaining a supramolecular complex with oligo- and polysaccharides can give good results in increasing its stability.