FIELD: essential oils industry.
SUBSTANCE: invention relates to the essential oil industry. Method involves milling fennel fruits, extraction of ground raw material with an organic solvent in a Soxhlet apparatus and evaporation of the solvent. Organic solvent used is an easily boiling liquid – perfluorobutane methyl ether with a feed/solvent ratio of 1:4.5–9.0 wt/wt, extraction of raw material is carried out for 1–5 hours, obtained extract is evaporated to obtain an oil extract, which is treated with ethanol 96 % vol/vol, with ratio of oil extract/ethanol 1:2, then mixture of oil extract and ethanol is centrifuged for separation of solution of essential oil in ethanol, which is evaporated under vacuum at 40 °C to produce purified essential fennel oil.
EFFECT: invention allows to develop effective ecologically clean method for extraction of essential oil from fennel fruits, which does not require specialized and complex equipment.
1 cl, 1 dwg, 3 tbl, 3 ex
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