Preparation method of hazel leaf extract

The technology of extract and hazel leaf is applied in the field of preparation of hazel leaf extract, can solve problems such as waste of hazel leaf, achieve the effect of simple preparation method and prevention of cardiovascular and cerebrovascular diseases

Inactive Publication Date: 2011-09-21
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is to solve the technical problem that there is no method for utilizing hazelnut leaves at pr

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0007] Embodiment 1: The preparation method of the hazel leaf extract of the present embodiment is carried out according to the following steps: 1. Picking disease-free Corylus plant leaves and washing them with water; 2. Treating the Corylus plant leaves in step 1 Place it under normal pressure drying or drying under reduced pressure at a temperature of 30°C to 100°C, and dry to the extent that the moisture in the hazel leaves is less than or equal to 3% (mass); 3. The hazel leaves dried in step 2 are pulverized into a fineness of 120-20-mesh granules to obtain hazel leaf powder; 4. Weigh the hazel leaf powder and water obtained through step 3 according to the mass ratio of hazel leaf powder and water as 1:40~60, and immerse the hazel leaf powder in water, Under the condition that the temperature is 15°C to 100°C, extraction is performed for 0.5 min to 120 min, and the solid matter is removed by filtration to obtain the hazel leaf extract.

[0008] The preparation method of t...

Example Embodiment

[0009] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the Corylus plants described in step 1 are flat hazel, hair hazel, thorn hazel, Sichuan hazel, Hua hazel, velvet hazel, Dian hazel, Wei Xi One of hazelnut, hazelnut thorn, hazelnut, and hazelnut, or a hybrid of any two of them. Others are the same as the first embodiment.

Example Embodiment

[0010] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the drying temperature in step 2 is 35°C to 80°C. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a preparation method of a hazel leaf extract. The method solves the technical problem that a large amount of hazel leaves are wasted because the method capable of utilizing the hazel leaves is absent at present. The first method comprises the following steps of: 1, picking disease-free hazel leaves, cleaning, drying and crushing, soaking the hazel leaves into water, performing extraction at the temperature of between 15 and 100 DEG C, and performing filtration to remove solid matters, wherein the filtrate is the hazel leaf extract. The second method comprises the following steps of: 1, adding the disease-free hazel leaves into water, performing mechanical crushing treatment, and performing filtration to obtain the hazel leaf extract. The preparation method of the hazel leaf extract is simple; any additive is not used in the extraction process; flavone, tannin and polyphenol components in hazel leaves are furthest reserved; and the dry product of the hazel leaf extract contains 0.1 to 20 mass percent of flavone and 5 to 30 mass percent of polyphenol. The hazel leaf extract can be used as a health-care product for preventing hyperlipidemia and heart cerebrovascular diseases.

Description

technical field [0001] The invention relates to a preparation method of hazel leaf extract. Background technique [0002] Corylus plants are widely distributed in Northeast China, East China, North China, Northwest China and Southwest China, most of which are in the three Northeast provinces. The fruit of the hazelnut tree, that is, hazelnut, has high nutritional value. People have fully understood it, but the use of hazel leaves is less. Hazel leaves are rich in flavonoids, tannins, polyphenols and other medicinal and health-care ingredients. , these ingredients have the effect of lowering blood fat and preventing cardiovascular and cerebrovascular diseases. There is no method for hazelnut leaves to be utilized now, resulting in a large amount of waste of hazelnut leaves. Contents of the invention [0003] The present invention aims to solve the technical problem that there is no method for utilizing hazelnut leaves at present, resulting in a large amount of waste of ha...

Claims

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Application Information

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IPC IPC(8): A61K36/185A61P3/06A61P9/00A61P25/00A61K127/00
Inventor 金涛刘利群邹积宏
Owner HEILONGJIANG UNIV
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