Extraction method of wood essential oil
An extraction method and essential oil technology, which is applied in the field of extraction of woody essential oils, can solve the problems of natural environment pollution, human side effects, etc., and achieve the effect of improving the extraction rate
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[0018] Example 1
[0019] A method for extracting wood essential oil, including the following steps:
[0020] (1) Wash the perennial wooden cypress rhizomes of cypress or yellow cypress to remove the surface sand and soil impurities, and then chop them into short wood chips. The short wood chips are 3cm in length, 1cm in width, and 0.3cm in thickness. Then immerse it in a salt-containing ethanol solution for 2 hours. In the salt-containing ethanol solution, the mass fraction of sodium chloride is 5%, the mass fraction of ethanol is 4%, and the solvent is water. 30000Hz ultrasonic treatment is used during the soaking process; after soaking, the treated short wood chips are washed with soft water, and then dried with a dryer to have a moisture content of 8%. After drying, they are crushed to 20 mesh particles to obtain fine wood powder;
[0021] (2) Put the fine wood powder in the reactor and add the aqueous solution containing 0.05% cellulase, and treat it at 55℃ for 2h; then drain t...
Example Embodiment
[0023] Example 2
[0024] A method for extracting wood essential oil, including the following steps:
[0025] (1) Wash the perennial wooden cypress rhizomes of cypress or yellow cypress to remove the surface sand and impurities, and then chop them into short wood chips. The short wood chips are 2cm in length, 1.5cm in width, and 0.5cm in thickness. Then immerse it in a salt-containing ethanol solution for 1.5 hours. The mass fraction of sodium chloride in the salt-containing ethanol solution is 4%, the mass fraction of ethanol is 5%, and the solvent is water. 32000Hz ultrasonic treatment is used in the soaking process; after soaking, the treated short wood chips are washed with soft water, and then dried with a dryer to make the water content 8%, and after drying, they are crushed to 15 mesh particles to obtain fine wood powder;
[0026] (2) Put the fine wood powder in the reactor and add the aqueous solution containing 0.08% cellulase, and treat it at 50℃ for 2h; then drain the aqu...
Example Embodiment
[0028] Example 3
[0029] A method for extracting wood essential oil, including the following steps:
[0030] (1) Wash the perennial wooden cypress rhizomes of cypress or yellow cypress to remove the surface sand and impurities, and then chop them into short wood chips. The short wood chips are 2cm in length, 1.5cm in width, and 0.5cm in thickness. Then immerse it in a salt-containing ethanol solution for 1.5 hours. The mass fraction of sodium chloride in the salt-containing ethanol solution is 4%, the mass fraction of ethanol is 5%, and the solvent is water. 32000Hz ultrasonic treatment is used during the soaking process; after soaking, the treated short wood chips are washed with soft water, and then dried with a dryer to make the water content 7%, and after drying, they are crushed to 18 mesh particles to obtain fine wood powder;
[0031] (2) Put the fine wood powder in the reactor and add the aqueous solution containing 0.1% cellulase, and treat it at a temperature of 58℃ for 2h...
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