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Method for extracting tannic acid by utilizing herba dendrobii

A technology of tannic acid and dendrobium, which is applied in chemical instruments and methods, pharmaceutical formulations, cosmetic preparations, etc., can solve the problem of no relevant reports on the extraction of tannic acid, and achieves inhibition of platelet aggregation, regulation of cholesterol, and improvement of utilization. rate effect

Active Publication Date: 2018-06-15
黔西南州成章农业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent 103910810A proposes a "Method for Simultaneously Preparing Dendrobium Pigments and Dendrobium Polysaccharides from Dendrobium Raw Materials", which opens the prelude to the extraction of active ingredients in Dendrobium. Various active ingredients, but the technology of extracting tannic acid from Dendrobium has not been reported so far

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  • Method for extracting tannic acid by utilizing herba dendrobii

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Experimental program
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Embodiment 1

[0037] This embodiment provides a method for extracting high-purity tannic acid by using dendrobium as a raw material and using processing techniques such as extraction, concentration, distillation, separation and purification.

[0038] In this example, Dendrobium Huoshanense, Dendrobium officinale, and Dendrobium copper were selected as raw materials for extraction, and the ratio of the three raw materials was 1:1:1, and the total wet weight of Dendrobium was 15kg.

[0039] In this embodiment, a mixture of acetone, methanol and water in a ratio of 1:1:1 is selected as the organic water solvent, the methanol is 95% laboratory methanol, and the purity of the acetone is 99.5%.

[0040] In the present embodiment, the specific method of utilizing dendrobium to extract tannic acid is as follows:

[0041] Step 1: Take 15kg of lignified dendrobium stems that are more than three years old, use a brush to clean the surface dust, remove impurities, cut into 5cm long stems, add organic w...

Embodiment 2

[0056] Application of tannins in medical field.

[0057] In this embodiment, 50 mice with the same growth, 100g body weight, the same health level, high cholesterol content in the body and the same content were selected, and Arabic numerals from 1 to 50 were marked on the mice, and they were divided into two groups and placed in They were reared for 50 days in the same living environment.

[0058] Group A consisted of mice numbered 1 to 25, and group B consisted of mice numbered 26 to 50.

[0059] During the feeding process, the daily food intake of each mouse was controlled to be 200g, and the water intake was 20ml. The food was rich in cholesterol, and the 200g food eaten by the mice in group A was added to the food extracted from Example 1. Add 1 g of tannin extracted from Schisandra chinensis, and mix well; add 1 g of tannin extracted from Schisandra chinensis into 200 g of food eaten by mice in group B every day, and mix well.

[0060] After feeding for 50 days, the cho...

Embodiment 3

[0066] Application of tannins in sunscreen and skin care products.

[0067] This embodiment selects 15 cases of experimental control groups, wherein group A includes 100ml of ordinary sunscreen; group B includes 100ml of sunscreen added with tannin extracted from Schisandra chinensis; group C includes the addition of finished tannin extracted in Example 1 100ml of sunscreen;

[0068] In this experiment, the sunscreens in groups B and C were exactly the same as the sunscreens in group A before adding tannin, and 10g of tannin was added to the sunscreens in group B and C respectively.

[0069] In this experiment, 15 mice with the same growth, weight 100g, and the same health level were numbered. Group A included mice Nos. 1 to 5, Group B included mice Nos. 6 to 10, and Group C included mice Nos. No. 15 white mouse, cut off the same volume of mouse hair at the same position on the back of each little white mouse.

[0070] Apply 2ml of ordinary sunscreen to the hair-cut parts of...

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Abstract

The invention relates to the technical field of tannic acid extraction, in particular to a method for extracting tannic acid by utilizing herba dendrobii. The method for extracting the tannic acid comprises the following steps: selecting any one or more of dendrobium huoshanense, dendrobium candidum, dendrobium moniliforme, dendrobium loddigesii rolfe, dendrobium fimbriatum, dendrobium chrysanthumand noble dendrobium as raw materials, and carrying out separation and purification technologies such as lixiviating, concentrating, atmospheric distillation, heating and distillation, filtering andresin purification, so as to effectively extract out the tannic acid with fine texture and pure white color, wherein the purity of a finished product tannin is 94.7 percent and the extraction rate is92.3 percent, so that the utilization rate and the use value of the herba dendrobii are effectively improved; the extracted finished product tannic acid has obvious and strong effects in the fields offoods, chemical engineering, cosmetics, medicines and the like; the medical effects of tannin with the same amount is 3 to 7 percent greater than that of the tannin extracted by utilizing the fructusschisandrae.

Description

technical field [0001] The invention relates to the technical field of tannic acid extraction, in particular to a method for extracting tannic acid from dendrobium. Background technique [0002] Dendrobium, also known as Wanzhangxu, Chlorophytum, Linlan, Forbidden Life, Nobile Flower, etc. The stem is erect, fleshy and thick, slightly flattened cylindrical, 10-60cm long and 1.3cm thick. Dendrobium is a medicinal plant, sweet and slightly salty in nature and flavor, cold, and returns to the stomach, kidney, and lung meridians. Dendrobium is elegant, exquisite and lovely, with bright colors and fragrant smell. It is known as one of the "four major ornamental foreign flowers". [0003] Tannin, also known as tannic acid and tannin, exists in the bark and fruit of various trees, and is also the main component of galls produced by these trees attacked by insects, with a content of up to 50% to 70%. Tannin is yellow or brown-yellow amorphous loose powder, the color gradually bec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H13/08C07H1/08A61P3/06A61K8/60A61Q17/04
CPCA61K8/60A61Q17/04C07H1/08C07H13/08
Inventor 代仁猛
Owner 黔西南州成章农业发展有限公司
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