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Bamboo extract and its preparation method and application

A technology of bamboo extract and medicine, applied in the field of plant extract and its preparation, can solve the problem of lack of high active natural CCB medicine

Inactive Publication Date: 2004-08-04
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of drug is called calcium channel blocker (Calcium Channel Blocker referred to as CCB). At present, CCB drugs have been widely used clinically in cardiovascular and cerebrovascular diseases, but they are all chemically synthesized, and there is a lack of highly active natural CCB drugs.

Method used

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  • Bamboo extract and its preparation method and application

Examples

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Effect test

preparation example 1

[0016] Preparation Example 1: Alkaline Extraction

[0017] Picked bamboo leaves or branches, washed twice with tap water, dried, crushed, weighed 500g, soaked in 8000ml saturated lime water for 1 hour, heated for 1 hour (80-100°C), filtered while hot, added 5000ml saturated lime water to extract by heating 1h, filter, concentrate, pulverize, and seal in a sample bottle for later use. Obtained alkali extract sample-80g.

preparation example 2

[0018] Preparation Example 2: Alkaline Extraction

[0019] Pick bamboo leaves or bamboo branches, wash them twice with tap water, dry, crush, weigh 500g and add 8000ml pH of 13 sodium hydroxide ethanol (50% ethanol concentration) solution, soak for 1 hour, heat for 1h (80~100°C), Filtrate while hot, add 5000ml sodium hydroxide ethanol solution to the residue, heat and extract for 1h, filter, concentrate, pulverize, and seal in a sample bottle for later use. Obtain 80g of alkali extract sample two.

preparation example 3

[0020] Preparation Example 3: Alcohol Extraction

[0021] Pick bamboo leaves or branches, wash them twice with tap water, dry, crush, weigh 500g, add 8000ml 50% ethanol solution, soak for 1 hour, heat for 1h (80-100°C), filter while hot, add 5000ml 50% ethanol solution to the residue Heat and extract for 1 hour, filter, concentrate, pulverize, and seal in a sample bottle for later use. Obtain alcohol extract sample 1 75g.

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Abstract

A bamboo extract used to prepare the medicine for regulating Ca channel is prepared from bamboo twigs and leaves through drying, pulverizing, immersing in the solution of alkali in water or alcohol for 0.5-24 hr, heating to 40-100 deg.C, holding the temp for 0.5-24 hr, filtering, repeating said steps for dregs, collecting filtrate, concentrating and drying.

Description

technical field [0001] The present invention relates to a kind of plant extract and its preparation method and application, specifically, the present invention relates to bamboo extract and its preparation method and application. Background technique [0002] Bamboo leaves are the leaves of Gramineae Phyllostachys nigra (L-Odd.) Munro var henonis (Mitf) Stapfex Rendle. It is mainly distributed in the Yangtze River Basin, and bamboo resources are extremely rich in the southwest region. The application of bamboo leaves in traditional Chinese medicine began to be recorded in "Famous Doctors", Volume 37 of Li Shizhen's "Compendium of Materia Medica" in the Ming Dynasty, "Bamboo" is described in detail, in "Diet Therapeutic Materia Medica", "Materia Medica Seeking Truth", "Materia Medica Justice" " and other medical works of all dynasties are recorded. Main functions: clear heart-fire at the upper level, facilitate urination at the lower level, eliminate restlessness and heat, ...

Claims

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Application Information

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IPC IPC(8): A61P9/10A61P35/00
Inventor 莫尚武谢秀琼刘宁杨远友罗海燕
Owner SICHUAN UNIV
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