Method for producing diverse extracts of berry tea

A production method and extract technology, which are applied in the field of plant active ingredient extraction technology, can solve the problems of sweet taste and polysaccharide substances that are not comprehensively developed and utilized, and achieve the effects of reducing production costs, reducing environmental pollution and reducing usage.

Active Publication Date: 2011-06-29
ZHANGJIAJIE MAOYANMEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the health product "Maoyanberry Tea" produced from the original plant Grape dentata has been on the market for many years, and the total flavonoids and di...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Take 25kg of raspberry tea raw materials (dry basis) collected in mid-May, and the production place is Siguanyu Village, Luotaping Township, Yongding District, Zhangjiajie City. The total flavonoid content in the raw materials is 46.5%. Put the raw materials into the NJC500-2 microwave extraction tank (manufactured by Nanjing Jiequan Microwave Equipment Co., Ltd.), add 300L of pure water for extraction, the ratio of material to liquid is 1:12, the microwave frequency is 2450MHz, the material load power is 300W / L, and the extraction temperature is 40 ℃, stirring and extracting for 60 minutes, using a three-legged centrifuge for solid-liquid separation, microporous fine filtration of the centrifugate, and adsorption of the macroporous resin loaded on the fine filtrate, with a column volume of 4BV and a flow rate of 1.0BV / h. Collect 225L of the effluent from the column, concentrate under reduced pressure to obtain 34L of concentrated solution, and use 170L of ethanol (95%) ...

Embodiment 2

[0017] 25kg of raspberry tea raw material (dry basis) harvested in mid-April was produced in Siguanyu Village, Luotaping Township, Yongding District, Zhangjiajie City. The total flavonoid content in the raw material was 32.6%, and the dihydromyricetin content was 25.6%. Put the raw materials into NJC500-2 microwave extraction tank, add 200L pure water for extraction, the ratio of solid to liquid is 1:8, the microwave frequency is 2450MHz, the material load power is 500W / L, the extraction temperature is 50°C, and the extraction is carried out by stirring for 30min. Solid-liquid separation by centrifuge, microporous fine filtration of centrifugate, macroporous resin adsorption on fine filtrate, column volume 3BV, flow rate 0.5BV / h. Collect 155L of the effluent from the column, concentrate under reduced pressure to obtain 22L of concentrated solution, and use 90L of ethanol (95%) to ethanol precipitate the concentrated solution for 24 hours, recover the ethanol, and dry the ethano...

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PUM

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Abstract

The invention provides a method for producing diverse extracts of berry tea, comprising the following steps: drying Ampelopsis grossedentata tender stems rattans and leaves, crushing, carrying out microwave extraction, macroporous resin separation, concentrating column-over effluent liquid at reduced pressure, carrying out ethanol precipitation on concentrated liquid, and drying ethanol precipitation substance, so as to obtain a berry tea polysaccharide extract; eluting desorption liquid, collecting desorption eluent, concentrating, and carrying out spray drying on the concentrated liquid, soas to obtain a berry total flavone extract; and ultrafiltrating the desorption eluent, passing though a reverse osmosis membrane, concentrating retentate, adding 3-5% of active carbon, filter pressing, cooling and crystallizing filtrate, centrifugally dewatering and vacuum drying so as to obtain crude dihydromyricetin. The method provided by the invention is in favor of comprehensively using Ampelopsis grossedentata plant resources; and the microwave extraction, macroporous resin elution and membrane separation methods based on water as a medium are used, thereby being beneficial to reductions of use amount of organic solvents, energy consumption, production cost and environment pollutions.

Description

technical field [0001] The invention relates to a process for extracting effective plant components, in particular to a variety of compositions extracted from Vitis dentata plants as raw materials and a production method thereof. Background technique [0002] Raspberry (vine) tea is a traditional self-made health-preserving and healing drink for ethnic minorities such as the Tujia and Yao nationalities in southern my country. The original plants are all of the genus Vitaceae in the family Vitaceae, and the young vine tips are picked in spring and kneaded. made. There are many common names in various places. Historically, the Tujia settlements in northwestern Hunan and Hunan used to be called "mildew tea" because of the many white "like objects" in the appearance of the finished product. In recent years, merchants have changed their name to "Maoyan berry tea". The plant is commonly called "vine tea". [0003] Raspberry (vine) tea is brewed with boiling water. When drinking, ...

Claims

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Application Information

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IPC IPC(8): A61K36/87A23L1/29A61K127/00A23L33/00
Inventor 李新秋王文茂
Owner ZHANGJIAJIE MAOYANMEI
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