Preparation process of cinnamomum longepaniculatum essential oil
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A technology of oil camphor and essential oil, which is applied in the direction of essential oil/fragrance, fat production, etc., to achieve the effect of increasing yield and saving dosage
Pending Publication Date: 2020-10-02
INST OF URBAN AGRI CHINESE ACADEMY OF AGRI SCI
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However, there are still few reports on the extraction of camphor essential oil by microwave-assisted water distillation.
Literature (the research of microwave assisted steam distillation camphor tree leaf volatile oil,
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Embodiment 1
[0023] Embodiment 1, adopt microwave-assisted water distillation method to extract camphor essential oil
[0024] 1 Measure the moisture content of fresh camphor leaves
[0025] 1.1 Open the cap of the weighing bottle, dry it at 103-105°C for 2 hours each time, take it out, let it cool, cover the bottle cap and weigh until the constant weight (the difference between the two weighings does not exceed 0.0005g).
[0026] 1.2 Cut the fallen leaves of camphor oleifera into 2mm×4mm broken leaves at room temperature, take about 5.0g of fallen leaves of camphor oleifera into a weighing bottle, open the bottle cap in an oven at 130°C, and bake for 4 hours each time to take out , after cooling, cover the bottle cap and weigh until the constant weight.
[0027]
[0028] In the formula, A—weighing bottle weight (g);
[0029] B—the weight of oily camphor leaves + weighing bottle (g) before drying;
[0030] C—the weight of camphor leaves + weighing bottle after drying (g);
[0031] I...
experiment example 1
[0035] Experimental example 1, process screening experiment
[0036] 1 Microwave-assisted water distillation process screening:
[0037] Take by weighing the broken leaves 50g of the fallen leaves of camphor camphor after shearing in a flask, carry out the microwave-assisted water distillation process screening: according to shown in table 1, change the ratio of material to liquid (i.e. the ratio of the broken leaves weight of camphor oil camphor and the distilled water volume Ratio), microwave power or extraction time, other extraction conditions are the same as in Example 1, and extract camphor essential oil respectively. Each extraction condition was repeated 3 times, and the quality of the obtained essential oil was averaged. Calculate the yield of camphor essential oil obtained under each extraction condition.
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Abstract
The invention relates to a preparation process of cinnamomum longepaniculatum essential oil, and particularly provides an extraction method of cinnamomum longepaniculatum essential oil, which is a microwave-assisted water distillation method and comprises the following steps: taking cinnamomum longepaniculatum leaves, adding a solvent, extracting under the condition that the microwave power is 300-500W, and collecting volatile oil to obtain the cinnamomum longepaniculatum essential oil, wherein the mass volume ratio of the cinnamomum longepaniculatum leaves to the solvent is 1: (6.0-8.0) g/mL.Compared with a traditional water distillation method, the method has the advantages that the crushed cinnamomum longepaniculatum leaves sheared at room temperature are used as raw materials, so thatthe yield of the cinnamomum longepaniculatum essential oil extracted by adopting a microwave-assisted water distillation method is obviously increased. Besides, compared with a microwave-assisted water distillation extraction process reported in the prior art, the microwave-assisted water distillation method under specific pretreatment and specific process not only saves the use amount of distilled water, but also improves the yield of the cinnamomum longepaniculatum essential oil, and achieves unexpected technical effects. The extraction method has important value for production of cinnamomum longepaniculatum essential oil related medicines, foods and daily chemical products.
Description
technical field [0001] The invention belongs to the field of medicine extraction, and in particular relates to a preparation process of camphor essential oil. Background technique [0002] Oil camphor is a plant of the genus Lauraceae. Its Latin name is Cinnamomum longepaniculatum (Gamble) N.Chao. It is a unique tree species in China. It has been listed as a second-level key protected wild plant by the country. It is mainly distributed in Sichuan Province, and its distribution area extends to Hubei in the east. West, south to western Hunan, north to southern Shaanxi. According to the "National Compilation of Chinese Herbal Medicine", camphor tree is used as medicine with roots, wood, bark, leaves and fruits. Its main effects are: expelling wind and cold, regulating qi and promoting blood circulation, relieving pain and itching, and its skin and leaves can be used externally to treat chronic lower extremity ulcers. Skin itching, smoke can repel mosquitoes. At present, the r...
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IPC IPC(8): C11B9/02
CPCC11B9/027C11B9/022C11B9/025
Inventor 甘人友刘宏艳肖静夏宇
Owner INST OF URBAN AGRI CHINESE ACADEMY OF AGRI SCI
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