Technology for subcritical extraction of artemisia argyi essential oil
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A kind of Artemisia argyi essential oil and process technology, which is applied in the direction of essential oil/spices, fat production, etc., can solve the problems of low extraction rate, high energy consumption, low comprehensive utilization rate, etc., and achieve the effect of improving the extraction rate
Inactive Publication Date: 2016-02-24
江西康丰生物科技有限公司
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[0005] With the requirements of industrial development, the research on the extraction and separation technology of essential oils will gradually develop in the direction of high efficiency and environmental protection, strengthen the promotion of new technologies in the field of separation, and change the status quo of traditional processes with high energy consumption, low comprehensive utilization rate, and low extraction rate
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[0014] The technical solution of the present invention will be further specifically described below, rather than limiting the present invention.
[0015] A subcritical extraction technology of mugwort essential oil, which is prepared according to the following process flow: mugwort leaf→cleaning→beating→subcritical extraction→extraction solution→concentration→crude essential oil→molecular distillation→refining→finished product, the key steps are:
[0016] a. Material selection: choose clean and non-deteriorated mugwort leaves and wash them for later use;
[0017] b. Beating: the raw material and water are mixed in a ratio of 1:10, and put into a single-channel beater for beating;
[0018] c. Subcritical extraction: normal temperature extraction, low temperature precipitation, increase the vacuum degree of the process, so that the extraction solvent evaporates rapidly at a temperature of 20-60°C, the ratio of solvent to material is controlled between 1:1-1.5:1, and the number o...
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Abstract
The invention relates to the agricultural and biological deep processing field, and provides a technology for subcritical extraction of artemisia argyi essential oil. Artemisia argyi is employed as a raw material, a subcritical extraction method is employed, then a molecule distillation technology is employed to extract high-purity artemisia argyi essential oil. A new technology for raising the artemisia argyi essential oil extraction rate and purity through combination of subcritical extraction and a molecule distillation technology is explored. The technology comprises the following process flows: artemisia argyi selection, cleaning, beating, subcritical extraction, extracting solution obtaining, condensation, crude essential oil preparation, molecule distillation, refining and finished product preparation. The subcritical extraction technology is employed, then a molecule distillation technology is employed to extract high-purity artemisia argyi essential oil, and the artemisia argyi essential oil extraction rate is raised. Influences of subcritical extraction time, temperature, pressure, material liquid ratio and the like on the essential oil extraction technology will be researched further.
Description
technical field [0001] The invention relates to the field of agricultural biological deep processing, in particular to the technology of making essential oil from leaves of mugwort. Background technique [0002] Artemisia argyi leaves contain 0.2% to 0.4% volatile oil, and its composition is very complex, and its content and main components vary greatly with different origins, different varieties, and different harvesting times. The volatile oil is mainly I ,8-Cineole extract, α-thujone (α-thujone), α-phellandrene (α-phellandrene), β-caryophyllene (β-caryophyllene), camphene, camphor, fennelone, trans Reed alcohol (transcarveol), I-α-terpineol (I-α-terpineol). [0003] The extraction rate of Artemisia argyi leaf essential oil from different origins is 0.29%-0.56%, all of which contain characteristic components: α-pinene, β-pinene, α-terpinene, γ-terpinene, eucalyptol, artemisinone, artemisinol , 2-cyclohexen-1-ol, camphor, borneol, 4-terpineol, trans-caryophyllene, eugenol...
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