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Extraction method of lignans in schisandra chinensis rattan stems

A technology for extracting Schisandra chinensis, which is applied in the field of extracting lignans, a natural drug component, can solve problems such as waste of resources, and achieve the effects of low cost, high extraction efficiency, and simple operation

Inactive Publication Date: 2013-12-11
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Production practice shows that for a long time, the pruned canes of Schisandra chinensis are discarded as waste, resulting in a huge waste of resources

Method used

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  • Extraction method of lignans in schisandra chinensis rattan stems
  • Extraction method of lignans in schisandra chinensis rattan stems
  • Extraction method of lignans in schisandra chinensis rattan stems

Examples

Experimental program
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Effect test

Embodiment 1

[0019] 1. Treatment of cane

[0020] In May 2010, Schisandra chinensis wild tending base in Zhashui County, Shaanxi Province collected 1-2-year-old Schisandra canes with a diameter of less than 0.5 cm, dried naturally in the shade, crushed, and passed through a 60-mesh sieve to obtain the cane powder of Schisandra chinensis.

[0021] 2. Extract lignans from the cane of Schisandra chinensis

[0022] Weigh 5.0g of Schisandra chinensis cane powder and place it in a 100mL flask, add 50mL of acetonitrile, mix well, seal, heat up to 40°C, use an ultrasonic generator with a power of 100Hz to sonicate for 30 minutes, soak at 25°C for 12 hours, use Evaporate acetonitrile with a rotary evaporator, cool to room temperature, add 5 mL of methanol, and ultrasonically sonicate with an ultrasonic generator power of 100 Hz for 5 minutes to fully dissolve the solid, place it in a 75°C water bath and heat until the liquid is completely evaporated to dryness to obtain lignans .

Embodiment 2

[0024] In the processing cane step 1 of embodiment 1, take the cane of Schisandra chinensis with a diameter of 0.5 to 2 cm that was collected at the wild tending base of Schisandra chinensis in Zhashui County, Shaanxi Province in May 2010, and dry naturally in the shade, pulverize, and pass through. 60 mesh sieves, obtain the cane powder of Schisandra chinensis. Other steps are identical with embodiment 1, obtain lignan.

Embodiment 3

[0026] In the step 2 of extracting the lignans in the cane of Schisandra chinensis in Examples 1-2, weigh 5.0 g of the cane powder of Schisandra chinensis and place it in a 100 mL flask, add 25 mL of acetonitrile, mix evenly, seal, and heat up to 40 ° C. Ultrasonic treatment with an ultrasonic generator power of 100 Hz for 60 minutes, soaking at 25 ° C for 10 hours, evaporating acetonitrile with a rotary evaporator, cooling to room temperature, adding 5 mL of methanol, and using an ultrasonic generator power of 100 Hz for 5 minutes to make The solid is fully dissolved, placed in a 75°C water bath and heated until the liquid is completely evaporated to dryness to obtain lignans. Other steps are the same as the corresponding examples to obtain lignans.

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Abstract

An extraction method of lignans in schisandra chinensis rattan stems adopts cut or discarded schisandra chinensis rattan stems as raw materials, has low cost, and has low requirements for rattan stem growth years, and rattan stems can be obtained at all seasons, which solve the strict time limit for production, and reduce working strength; various lignans in schisandra chinensis rattan stems are extracted by an ultrasonic processing method; the operation is simple; the extraction efficiency of various lignans in schisandra chinensis rattan stems is high; the mean values of the contents of schisantherin A, deoxyschizandrin, schisandrin B, and schisadrol A extracted from newborn rattan stems are respectively 0.7394%, 0.2229%, 0.1474%, and 0.1237%; the mean values of the contents of schisantherin A, deoxyschizandrin, schisandrin B, and schisadrol A extracted from perennial rattan stems are respectively 1.1901%, 0.4760%, 0.2850%, and 0.1768%; and the product is applicable to industrial production.

Description

technical field [0001] The invention belongs to the technical field of extracting lignans, a natural medicinal component, and in particular relates to a method for extracting lignans from the cane of the plant Schisandra chinensis. Background technique [0002] Schisandra sphenanthera Rehd.et Wils. is a perennial deciduous woody vine of Schisandraceae (Schisandraceae) genus Schisandra Michx. Its dry and mature fruit is called Southern Schisandra, which is included in the first volume of the Chinese Pharmacopoeia 2010 edition , has the effects of astringent and astringent, nourishing qi and promoting body fluid, tonifying kidney and calming heart. The medicinal ingredients of Schisandra plants are mainly lignans and volatile oils, of which lignans are the main active ingredients, which have the functions of reducing enzymes, protecting liver, anti-aging, anti-tumor, and anti-HIV. [0003] The cane of Schisandra chinensis grows a lot under natural conditions, and it competes ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K36/57A61K135/00
Inventor 顾蔚刘锦孙茂王喆之
Owner SHAANXI NORMAL UNIV
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