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Preparation method of abelmoschus manihot essential oil

A technology of aromatic essential oil and hollyhock flower, which is applied in the direction of essential oil/fragrance, fat production, etc. It can solve the problems of black paste and increased stickiness, and achieve the effect of rapid absorption, low temperature and avoiding residue

Active Publication Date: 2014-07-30
广州市雅创化妆品有限公司
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Problems solved by technology

Research on the chemical constituents of hollyhock flowers [J], Northwest Pharmaceutical Journal, 2008, 23(2): 80-82) uses steam distillation, but after actual verification, it is found that the adhesiveness of hollyhock flowers increases after being exposed to water, and it is easy to dissolve after a little heating. darkened

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  • Preparation method of abelmoschus manihot essential oil

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with accompanying drawing and embodiment, but the present invention is not limited to embodiment, under the premise of not departing from the gist of the present invention, any improvement done all falls within the protection scope of the present invention.

[0030] The preparation method of hollyhock flower aromatic essential oil, the steps are as follows:

[0031] 1) Pulverize the shade-dried hollyhock flowers to a powder with a fineness of 10-80 mesh.

[0032] 2), continuous reflux extraction

[0033] Wrap the hollyhock flower powder with filter paper, put it in a Soxhlet extractor, add ether, heat and reflux at 40-60°C and extract repeatedly until the solvent is colorless, cool and collect the extract.

[0034] 3) Concentrate the extract at 20-40°C to evaporate the solvent.

[0035] 4), co-water distillation

[0036] Put the hollyhock flower extract that has evaporated the solvent into the volat...

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Abstract

The invention relates to the technical field of essential oil and in particular relates to a preparation method of abelmoschus manihot essential oil. The preparation method comprises the steps of grinding abelmoschus manihot dried in the shade into powder; wrapping the abelmoschus manihot powder with filter paper, putting the abelmoschus manihot powder in an extractor, adding a low-boiling-point solvent, heating the solvent to carry out reflux and repeated extraction until the solvent is colorless, and cooling and collecting the extracting solution; concentrating the extracting solution to volatize all the solvent; filling the abelmoschus manihot extract with all the solvent volatized into the extractor, adding distilled water, shaking the extractor to mix the abelmoschus manihot extract with the distilled water, connecting with a reflux condensing tube, carrying out heating distillation until the essential oil in the extractor is no longer added, and cooling and collecting the oil layer; adding an inorganic salt drying agent to the oil layer for dehydration, and sealing for storing, thus obtaining the abelmoschus manihot essential oil. The preparation method has the beneficial effects that firstly the low-boiling-point organic solvent is heated to undergo continuous reflux extraction, thus avoiding inference of substances such as gels, phlegm, polysaccharides and the like; non-volatile impurities are removed by distilling the extract and water; the organic solvent is volatized at low temperature before distillation, thus avoiding the residues of the solvent.

Description

technical field [0001] The invention relates to the technical field of extraction of aromatic essential oils, in particular to a method for preparing the aromatic essential oil of marshmallow flowers. Background technique [0002] The hollyhock flower is the dried corolla of Abelmoschus manihot (L.) Medic. The 2010 edition of "Chinese Pharmacopoeia" records that it has the functions of clearing dampness, reducing swelling and detoxification, and is used for damp heat, turbidity and edema; external treatment of carbuncle, ulcer, swollen toxin, water and fire burns, etc. "Jiayou Materia Medica" of the Song Dynasty: It is used as the last application for treating urination stranguria and promoting birth, and treating malignant sores and pus that have not healed for a long time. "Compendium of Materia Medica" of the Ming Dynasty: reduce carbuncle, soak oil and apply soup to burns. At present, it has been widely cultivated artificially, and there are many studies on the flavono...

Claims

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Application Information

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IPC IPC(8): C11B9/02
Inventor 时维静李立顺章庆华李响
Owner 广州市雅创化妆品有限公司
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