八角茴香油的提取方法有如下几种。(1)水蒸气蒸馏法将2009八角茴香原

Star anise oil extraction methods are summarized as follows. <br>(1) steam distillation <br>to 2009 of star anise oil feedstock is placed in a distillation apparatus, distilled water was added 5h, oil distilled off with steam, by condensation, oil-water separation to obtain star anise oil, yield 7.5%. <br>(2) Supercritical CO2 extraction <br>accurately weighed 250g anise material, charged into the extractor tank, into CO2, at a pressure of 16MPa, temperature 35 ℃, reaction time of 2h and CO2 flow 30L / h condition to be star anise continuous extraction, the extract can be separated into the separator, the CO2 cycle to extract discharged from the bottom of the gasifier separation tank, yield 10.5%

There are several methods for extracting octagonal fennel oil.<br>(1) Water vapor distillation method<br>The 2009 octagonal fennel raw material sits in the essential oil distiller, with water distillation 5h, steamed out with water vapor, through condensation, oil and water separation to obtain octagonal fennel essential oil, the yield of 7.5%.<br>(2) Supercritical CO2 extraction<br>Accurately weigh 250g octagonal fennel raw materials, loaded into the extraction tank, into CO2, at pressure 16MPa, temperature 35 degrees C, reaction time 2h and CO2 flow 30L/h conditions, the octagonal fennel continuous extraction, extract into the separation tank for separation, CO2 gasification cycle so that the extract from the bottom of the separation tank released, the yield of 10.5%

The extraction methods of star anise oil are as follows.<br>(1) Steam distillation<br>2009 star anise raw materials were put into the essential oil distiller, distilled 5h and distilled oil by steam. The yield of star anise essential oil was 7.5% by condensation and oil and water separation.<br>(2) Supercritical CO2 extraction<br>Accurately weigh 250g star anise raw material, put it into the extraction tank, introduce CO2, extract star anise continuously under the conditions of pressure 16MPa, temperature 35 ℃, reaction time 2H and CO2 flow 30L / h, and extract into the separation tank for separation. After CO2 gasification, recycle the extract from the bottom of the separation tank, and the yield is 10.5%