Method for extracting sun choke essential oil and sun choke brain by enzymolysis-vapor distillation process
A technology of water vapor distillation and sand ginger essential oil, which is applied in the direction of essential oil/spices, fermentation, fat production, etc. It can solve the problems of difficult steaming, exporting pipeline flushing, difficult to obtain high-quality essential oil, etc., and achieves easy filtration and improved process Effect
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Embodiment 1
[0017] The first step is to select, purify and crush the fresh sand ginger, and the particle size after crushing is 0.1mm;
[0018] In the second step, when the temperature is 50° C. and the solid-liquid ratio is 1:1, amylase is used to enzymatically hydrolyze the slurry, the concentration of the enzyme is 0.2% of the total weight, and the time is 30 minutes;
[0019] In the third step, steam distillation is carried out for 3 hours when the solid-liquid ratio is 1:3, and the steam volume is converted into a liquid volume of about 200g / h (based on 100 grams of ginger);
[0020] The 4th step, obtain essential oil and gingerol with oil-water separation method and filtration method; Select ether as organic solvent, extract the aqueous solution of distillate; Select Na 2 SO 4 Used as a desiccant to remove a small amount of water contained in the essential oil to obtain a clear and transparent essential oil.
Embodiment 2
[0022] The first step is to select, purify and crush the dried sand ginger, and the particle size after crushing is 3mm;
[0023] In the second step, when the temperature is 100°C and the solid-to-liquid ratio is 1:3, the slurry is enzymolyzed with glucoamylase, the concentration of the enzyme is 2.0% of the total weight, and the time is 150 minutes;
[0024] The third step is to carry out water vapor distillation for 7 hours when the solid-liquid ratio is 1:7, and the steam volume is converted into a liquid volume of about 700g / h (based on 100 grams of ginger);
[0025] The fourth step is to use oil-water separation method and filtration method to obtain essential oil and gingerol; choose hexane as organic solvent, and extract the aqueous solution of distillate; choose CaSO 4 Used as a desiccant to remove a small amount of water contained in essential oils to obtain clear and transparent essential oils.
[0026] Examples 1 and 2 gained active ingredient yields are shown in T...
Embodiment 3
[0030] The first step is to select, purify and crush fresh sand ginger, and the particle size after crushing is 0.7mm;
[0031] In the second step, when the temperature is 80° C. and the solid-liquid ratio is 1:2, amylase is used to enzymolyze the slurry, the concentration of the enzyme is 0.5% of the total weight, and the time is 50 minutes;
[0032] The third step is to carry out steam distillation for 5 hours when the solid-liquid ratio is 1:5, and the steam volume is converted into a liquid volume of about 500g / h (calculated in 100 grams of ginger);
[0033] The fourth step is to use oil-water separation method and filtration method to obtain essential oil and gingerol; choose ethyl acetate as the organic solvent, and extract the aqueous solution of the distillate; choose CaCl 2 Used as a desiccant to remove a small amount of water contained in essential oils to obtain clear and transparent essential oils. The yield of essential oil and gingerol is 3.20%.
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