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Technique for extracting total tannins in Manchurian walnut stem and branch

An extraction process and technology of juglans regia, applied in the directions of plant raw materials, plant/algae/fungus/moss components, and medical preparations containing active ingredients, etc., can solve the problems of low extraction rate of total tannins and restricting the development of juglans regia industry. , to achieve the effect of increasing the extraction rate

Inactive Publication Date: 2014-05-14
惠铁军
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AI Technical Summary

Problems solved by technology

The extraction rate of total tannins in the stems and branches of Juglans catalpa is low, which limits the development of Juglans catalpa industry

Method used

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Embodiment Construction

[0009] Weigh gallic acid and place it in a brown measuring bottle, add water to dissolve, dilute to the mark, and shake well to obtain a gallic acid stock solution; draw the above stock solution into a brown measuring bottle, add water to dilute to the mark, and shake well to obtain a gallic acid reference substance The solution is ready for use; take the sample powder of the stems and branches of Juglans catalpa and place it in a stoppered conical flask, add acetone or ethanol, seal the plug, extract, and use the extraction solvent to make up for the weight loss; shake well, filter after standing, absorb the filtrate, 20~ Recover under reduced pressure at 30°C until there is no organic solvent, transfer to a brown measuring bottle, add water to dilute to the mark, shake well, let stand and filter, and take the subsequent filtrate.

[0010] The temperature of the decompression recovery is 25°C.

[0011] The extraction adopts ultrasonic extraction; the ultrasonic extracti...

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Abstract

The invention relates to a technique for extracting total tannins in Manchurian walnut stem and branch, belonging to the technical field of extraction techniques. The technique for extracting total tannins in Manchurian walnut stem and branch is high in extraction rate. The technique comprises the following steps: weighing gallic acid, adding the gallic acid in a brown graduated flask, dissolving in water, diluting the calibration, and shaking up to obtain a gallic acid stock solution; absorbing the stock solution, adding into a brown graduated flask, diluting with water to the calibration, and shaking up to obtain a gallic acid control solution for later use; putting Manchurian walnut stem and branch sample powder in a plug-bearing conical flask, adding acetone or ethanol, sealing with the plug, extracting, and supplementing the weight loss with the extracting solvent; and shaking up, standing, filtering, absorbing a subsequent filtrate, recycling at 20-30 DEG C under reduced pressure until the subsequent filtrate is free of any organic solvent, transferring into a brown graduated flask, diluting with water to the calibration, shaking up, standing, filtering and taking the subsequent filtrate.

Description

technical field [0001] The invention belongs to the technical field of extraction technology, and in particular relates to a technology for extracting total tannins from stems and branches of Juglans catalpa. Background technique [0002] Juglans catalpa, also known as walnut catalpa and hickory, is a deciduous tree of the family Juglandaceae, mainly distributed in Northeast my country, North China and North Korea. It is recorded in "Dictionary of Traditional Chinese Medicine" that its skin and immature fruit have the functions of clearing away heat, detoxifying, improving eyesight and relieving pain. Studies have shown that the roots, branches, bark, fruits and leaves of Juglans catalpa have anti-tumor effects. At present, the compounds isolated from Juglans catalpa include naphthoquinones, tannins, flavonoids, organic acids, and diaryl heptanes, etc., wherein naphthoquinones and tannins are the main components of Juglans catalpa and exist in Roots, branches, leaves and f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/52A61P35/00A61K135/00
Inventor 惠铁军蔡文龙温永康曾广琼
Owner 惠铁军
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