Hedyotis caudatifolia volatile oil extraction technology
A technology for the extraction process of flavescens, which is applied in the field of extraction process of volatile oil of cloverleaf, can solve problems such as easy destruction and volatilization of active ingredients, difficult maintenance, lack of production process reports, etc., and achieves simple and easy extraction method Effect
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[0014] Example 1:
[0015] Take the flag leaf ear herbal medicine, crush it, and pass it through a 40-mesh sieve; add 1% cellulase (activity 30U / mg) of the raw material, spray 0.5 times the raw material with an acetic acid / sodium acetate buffer solution of pH 4.5 to reach the hand Just hold it into a dough; take the fermented raw materials, add 60% ethanol solution equivalent to 4 times the quality of the raw materials, and use continuous countercurrent ultrasonic extraction method to continuously extract for 2 hours under the conditions of 50℃ and 20KHz, filter, and filter the filtrate through petroleum Ether extraction, concentration under reduced pressure, etc., to obtain yellow volatile oil of Eriocheir sinensis with a yield of 2.3%.
Example Embodiment
[0016] Example 2:
[0017] Take the flag leaf auricularia herb material, crush it, and pass it through a 40-mesh sieve; add 3% cellulase (activity 50U / mg) of raw material quality, spray an acetic acid / sodium acetate buffer solution of pH 5.0 equal to 1 times of the raw material to reach the hand Hold it into a dough; take the fermented raw material, add 65% ethanol solution equivalent to 6 times the weight of the raw material, and use continuous countercurrent ultrasonic extraction to extract continuously for 3 hours at 55℃ and 20KHz, filter, and filter the filtrate with ether Extraction, concentration under reduced pressure, etc., to obtain yellow volatile oil of Eriocheir sinensis with a yield of 3.1%.
Example Embodiment
[0018] Example 3:
[0019] Take the flag leaf ear herb material, crush it, and pass it through a 40-mesh sieve; add 2% cellulase (activity 40U / mg) of the raw material mass, spray 0.5 times the raw material with an acetic acid / sodium acetate buffer solution of pH 5.5 to reach the hand Just hold it into a dough; take the fermented raw material, add 70% ethanol solution equivalent to 5 times the weight of the raw material, and use continuous countercurrent ultrasonic extraction method to continuously extract 3 hours under the conditions of 60℃ and 20KHz, filter, and filter the filtrate through organic Solvent extraction, concentration under reduced pressure, etc., to obtain yellow volatile oil of Eriocheir sinensis with a yield of 2.8%.
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