Process for simultaneously abstracting essential oil, chromocor and triterpenes components from agastache
A technology of triterpenes and essential oils, applied in the field of processing and utilization of Chinese herbal medicine resources
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example 1
[0016] Take 100g of patchouli stems, put it on the steam distillation device, connect the steam generating device, carry out steam distillation, condense with tap water at 20°C, collect the distillate, and distill until the distillate reaches 300ml. The residue was left to dry at room temperature; the distillate was rectified to obtain 2.5 g of essential oil. After the residue was aired until the moisture content was lower than 15%, it was extracted with ethanol with a concentration of 95% v / v according to a solid-liquid ratio of 1:4 at reflux temperature (78.5°C) for 3 times, each time for 30 minutes, to obtain an ethanol extract. The solvent was recovered from the ethanol extract to obtain 13.05 g of a tan to tan paste. The paste was extracted 3 times with acetone at reflux temperature (56.5° C.) according to the solid-liquid ratio of 1:4, each time for 30 minutes, and the paste was divided into two parts: acetone extract and acetone-insoluble solid powder. Acetone was reco...
example 2
[0018] Take 20kg of fresh patchouli leaves, put them into a 1000L still after rinsing, feed steam for steam distillation, condense with water at 4°C, collect the distillate, and distill until the distillate reaches 100kg to stop. Collect the residue in the distillation still, dry it in a vacuum oven at 60°C until the water content is less than 10%, put the distillate in a fractionation still for fractional distillation, collect the first 0.5% fraction, and obtain 0.5kg of essential oil. After the moisture content reaches the requirement, according to the solid-liquid ratio of 1:4, soak and extract with 95% v / v ethanol at 75° C. for 3 times, each time for 30 minutes, to obtain an ethanol extract. The extract was placed on an evaporating and concentrating device to recover ethanol to obtain 2.5 kg of brownish-yellow to tan paste. The paste was added with acetone according to the solid-liquid ratio of 1:4, and extracted three times at the reflux temperature (56.5° C.) to obtain a...
example 3
[0020] The composition of an essential oil sample obtained by steam distillation of fresh Ageratum leaves was determined, and the results are shown in Table 1. The measurement results showed that the main components of the essential oil obtained from fresh Ageratum leaves were cis-isomenthone and trans-isomenthone, the contents of which were 34.11% and 15.42%, respectively. The rest are 40 ingredients such as piperonone, hexenal, δ-juniperne terpene, juniper alcohol, α-ylangene, limonene, pulegone, etc. Among them, piperonone has an antiasthmatic effect and is allergic to guinea pigs Shock has a protective effect, and with the increase of dose, there is a quantitative-effect relationship, which can be used for the treatment of asthma. Pulegone has antihistamine effect, hexenal has effective antibacterial activity, D-limonene has antitumor effect, antibacterial activity, expectorant, cough relieving effect, and gallstone dissolution effect, indicating that the essential oil obt...
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