COMPARATIVE RESEARCH OF COMPOSITION OF ESSENTIAL OIL, HEXANE AND SUPERCRITICAL CO2-EXTRACTS FROM ROOTS OF THE DANDELION MEDICINAL
Тигунцева, Надежда Павловна
Евстафьев, Сергей Николаевич
- Publisher: Altai State University
Khimiia rastitel'nogo syr'ia (Chemistry of plant raw material)
(issn: 1029-5143, eissn: 1029-5151)
dandelion medicinal, chemical composition, supercritical CO2-extraction, essential oils, terpenoids, sterols | одуванчик лекарственный, химический состав, сверхкритическая СО2-экстракция, эфирные масла, терпеноиды, стеролы
Essential oil, hexane and supercritical CO2-extracts were isolated from the roots of the dandelion medicinal Taraxacum Officinale Wigg. The effect of pressure and duration of extraction on the yield and chemical composition of CO2-extracts has been studied. The composition of the investigated objects is qualitatively similar however the quantitative ratio of their group components was found to be appreciably different. It is shown that the highest yield of biologically active substances from dandelion roots can be obtained by use of supercritical carbon dioxide extraction. The increase of extraction time and use of modifier promotes recovery of extractive substances. As the extraction pressure increases the yield of CO2-extract passes through a maximum at 20 MPa. The received extract is characterized by the highest content of bioactive terpenoids and sterols.