Method for extracting, separating and purifying flax lignans from flax cakes

A technology of flax lignans and flax cakes, which is applied in the fields of chemical instruments and methods, organic chemistry, sugar derivative preparation, etc., can solve the problems of low extraction temperature, harsh conditions, high cost, etc., and achieve simple process operation and low condition requirements High, relatively high-purity effect
CN102796148AInactive Publication Date: 2012-11-28上海红马饲料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海红马饲料有限公司
Publication Date
2012-11-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for extracting, separating and purifying flax lignans from flax cakes, which comprises the following steps: pulverizing dry flax cakes, adding an ethanol solution, soaking in a sealed environment for 0.5-1.5 hours, and treating with ultrasonic for 20 minutes; leaching while stirring, and centrifuging to obtain a flax lignan crude extract; regulating the pH value of the flax lignan crude extract to 11.5-12.5, leaching for 1.5-2.5 hours while stirring, centrifuging to remove the precipitate, and regulating the pH value of the supernatant to 4.0-4.5; adsorbing the supernatant by macroporous resin chromatography; eluting with a 20% ethanol solution to obtain an alcohol solution containing flax lignans, concentrating with a rotary evaporimeter, and carrying out freeze-drying to obtain the finished product flax lignans. The invention also discloses flax lignans prepared by the method. The invention has the advantages of simple extraction technique, low production facility request and high extraction efficiency, and is obviously superior to the traditional solvent extraction method.
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Description

technical field

[0001] The invention relates to a method for extracting, separating and purifying flax lignans from flax cake, and belongs to the field of development and application of biologically active substances. Background technique

[0002] Flaxseed has become the seventh largest oil crop in the world and the fourth largest oil crop in my country. The main flax planting regions and countries include Canada, India, China, the United States, Argentina, the Nordic region and some Commonwealth of Independent States countries, of which Canada's flaxseed production Highest. The main production areas of flax in China are mainly distributed in North China and Northwest China. Gansu, Inner Mongolia, Ningxia, Hebei and other provinces have the highest flaxseed production, accounting for about 75% of the total national production, followed by Xinjiang, Jilin, Shaanxi and Qinghai, and Southwest China. There are sporadic plantings. In recent years, the production of flaxseed has ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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