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Method for continuously extracting active components of Hibiscus taiwanensis by utilizing supercritical carbon dioxide

A technology of carbon dioxide and active ingredients, applied in the direction of solid solvent extraction, etc., to achieve the effects of reducing production costs, simplifying the process, and shortening the production cycle

Active Publication Date: 2013-11-13
嘉文丽(福建)化妆品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After searching, there is no report at home and abroad on the extraction of functional components of Taiwan mountain hibiscus by supercritical carbon dioxide extraction method

Method used

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  • Method for continuously extracting active components of Hibiscus taiwanensis by utilizing supercritical carbon dioxide

Examples

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Effect test

Embodiment 1

[0025] Put 2 kg of dried Taiwan hibiscus root powder of about 10 mesh into extraction kettle I7 and extraction kettle II10. Set the extraction pressure to 40MPa, the extraction temperature to 32°C, the temperature of the separation tank I13 to 45°C, the pressure to 8MPa, and the pressure to the separation tank II16 to 4.5Mpa. After static extraction for 1 hour, 95% ethanol was used as entrainer for dynamic extraction for 2 hours, and the dosage of 95% ethanol was 1400ml. The extract was collected and concentrated to obtain 22g of Taiwan mountain hibiscus extract.

Embodiment 2

[0027] Wet 2 kg of 40 mesh Taiwan hibiscus stem powder with 400 ml of 75% ethanol and put it into extraction kettle I7 and extraction kettle II10. Set the extraction pressure to 30MPa, the extraction temperature to 55°C, the temperature of separation tank I13 to 50°C, the pressure to 8MPa, and the pressure to separation tank II16 to 4.5Mpa. After static extraction for 0.5 hours, pump 600ml of entrainer with a concentration of 75% ethanol into the extraction kettle, extract dynamically for 2.5 hours, collect the extract, and concentrate to obtain 25g of Taiwan Mountain Hibiscus extract.

Embodiment 3

[0029] Mix 2kg of dried 100-mesh Taiwan hibiscus leaf powder with 800ml of 50% ethanol and put them into extraction kettle I7 and extraction kettle II10. Set the extraction pressure to 20MPa, the extraction temperature to 75°C, the temperature of separation kettle I13 to 75°C, the pressure to 6MPa, the pressure of separation kettle II16 to 5Mpa, and dynamic extraction for 3 hours. The extract was collected and concentrated to obtain 43g of Taiwan mountain hibiscus extract.

[0030] The following is to observe the supercritical CO 2 Advantages and disadvantages of extraction technology and existing technology (ethanol method).

[0031] Existing technology (extraction by ethanol method): add 2kg of root, stem and leaf powder of Hibiscus taiwanensis, add 20L of 95% ethanol, soak for 2 to 3 days, filter, concentrate the filtrate, soak the filter residue in 20L of 95% ethanol, repeat this process 3 times, the collected filtrate was combined and concentrated to obtain the extract o...

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Abstract

The invention relates to a method for continuously extracting active components of Hibiscus taiwanensis by utilizing supercritical carbon dioxide. According to the method, roots, stems, leaves and flowers of the Hibiscus taiwanensis serving as raw materials are extracted with supercritical carbon dioxide in the presence of an entrainer which is 50-100% ethanol under the pressure of 15-60MPa at the temperature of 32-80 DEG C to obtain high-quality Hibiscus taiwanensis extractives, wherein the use amount of ethanol is 1-500% of the weight of the raw materials; under a supercritical state, static extraction lasts for 0-1 hour and dynamic extraction lasts for 1-4 hours; the pressure of a separation kettle I is 5-12MPa, the temperature of the separation kettle I is 32-80 DEG C, the pressure of a separation kettle II is 4-6MPa, and the temperature of the separation kettle II is 30-50 DEG C. The method has the advantages that the process is efficient and safe, the active components cannot be damaged, the process flow is short, the continuous extraction is realized, and the production period is short.

Description

technical field [0001] The invention relates to a method for extracting and separating active ingredients of plants, in particular to a method for continuously extracting active ingredients in Taiwan mountain hibiscus using supercritical carbon dioxide extraction technology. Background technique [0002] Hibiscus taiwanensis S.Y.Hu is a Malvaceae plant. Its flowers are edible, and its roots and stems are used as medicine. It is a traditional herbal medicine in Taiwan. , detoxification, clearing the lungs, cooling blood effect. Modern research shows that the active ingredients of Taiwan mountain hibiscus are mainly lignans, amides, terpenoids, sterols, and naphthoquinones, which have anti-inflammatory, anti-oxidation, anti-cancer, anti-virus, and anti-inflammatory properties. Immunity, reduce pores and other effects. In recent years, Taiwan mountain hibiscus extract has wide application prospects in the pharmaceutical and cosmetic industries because of its safety and high e...

Claims

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Application Information

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IPC IPC(8): B01D11/02
Inventor 饶焕文林建平萧自智潘发伍陈康
Owner 嘉文丽(福建)化妆品有限公司
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