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Method for extracting radix saussureae lappae essential oil by supercritical carbon dioxide

A technology for carbon dioxide and wood essential oil, which is applied in the field of extraction, can solve the problems of inability to separate and extract medicinal components, long distillation time, and destruction of yunmu incense, so as to facilitate manual control and industrialized production, simple raw material processing, and improved production efficiency. Effect

Inactive Publication Date: 2013-03-20
重庆市日用化学工业研究所有限责任公司
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Problems solved by technology

The traditional extraction method of the effective components of the essential oil of the essential oil is distillation. Due to the high temperature and long distillation time of the distillation method, some active components of the essential oil of the essential oil are often destroyed. Cannot be separated and extracted

Method used

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  • Method for extracting radix saussureae lappae essential oil by supercritical carbon dioxide
  • Method for extracting radix saussureae lappae essential oil by supercritical carbon dioxide

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Embodiment Construction

[0014] The present invention will be described in detail below in conjunction with examples. The experimental methods not indicating specific conditions in the preferred embodiments are generally in accordance with conventional conditions.

[0015] 1. Reagents, raw materials and experimental instruments

[0016] Yunmuxiang (purchased in Kai County, Chongqing), food grade CO 2 (commercially available).

[0017] HA-221-50-06-C supercritical fluid extraction device (Jiangsu Nantong Huaan Supercritical Extraction Co., Ltd.).

[0018] LGJ-18B Freeze Dryer (Beijing Songyuan Huaxing Technology Development Co., Ltd.).

[0019] HX 500A high-speed traditional Chinese medicine grinder (Yongkang Xi'an Hardware Medicine Factory, Zhejiang Province).

[0020] 2. Supercritical carbon dioxide extraction of essential oil

[0021] The method for supercritical carbon dioxide extraction of cloud wood essential oil, the specific steps are:

[0022] a. Freeze-dry the chrysanthemum to the w...

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Abstract

The invention discloses a method for extracting radix saussureae lappae essential oil by supercritical carbon dioxide, comprising the following steps of: firstly, freezing and drying radix saussureae lappae until the weight percentage of water is less than 10%; slicing and crushing to obtain radix saussureae lappae powder; and extracting the radix saussureae lappae powder for 30-240 minutes under the conditions that the temperature is 40-55 DEG C, the extraction pressure is 10-30 MPa and the CO2 flow is 5-25 L / h to obtain the radix saussureae lappae essential oil. By adopting the method for extracting the radix saussureae lappae essential oil, the extraction efficiency is high, the heat decomposition of essential oil components is not caused and the yield is higher than 6.04%. Compared with the traditional method, the method has the advantages that the production efficiency is greatly improved, the production period is shortened, the product yield is high and the economic benefit is obvious; and no environmental pollution is caused and the method is convenient for manual control and industrial production.

Description

technical field [0001] The invention relates to an extraction method, in particular to a method for extracting the essential oil of eucalyptus essential oil with supercritical carbon dioxide. Background technique [0002] Woody fragrance is divided into cloud woody fragrance, Sichuan woody fragrance and earthy woody fragrance. Cinnamonia is a plant of Compositae Cinnamonia ( Aucklandia lappa Decne . ) of the dried roots. Chuanxiang is a plant of Compositae, Chuanxiang ( Vladimiria souliei Ling .) or Akimogawa ( Vladimiria souliei Ling var. cinerea Ling ) dry root, inulin is Compositae plant inulin ( Inula helenium L .) dry roots. It is mainly produced in Kaixian County, Chongqing and Lijiang, Yunnan. Kaixian County, Chongqing is currently the largest producer of woody fragrance in the country. Chuanmuxiang is mainly produced in Songpan and Xichang, Sichuan, and Tumuxiang is mainly produced in Tibet and Hebei. The composition and efficacy of different varieties of...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
Inventor 巫建国晏家瑛万佳
Owner 重庆市日用化学工业研究所有限责任公司
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