Method for extracting tea pigment from tea leaves and tea pigment soft capsule

A technology of tea pigments and soft capsules, which is applied in the directions of capsule delivery, pharmaceutical formulations, and medical preparations containing active ingredients, can solve the problem of no soft capsules, etc., and achieve the effects of no environmental pollution, good economic benefits, and long shelf life.

Active Publication Date: 2014-07-09
CHONGQING HAILIYUN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, tea pigment has not been used to make soft capsules

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The method for extracting tea pigment from tea leaves is completed according to the following steps:

[0035] 1. Pre-treatment of tea leaves: Grind the fresh tea leaves into a paste of about 20 meshes in a meat blender. Leave for 4 hours. This fresh tealeaves also can be the fresh tealeaves of air-drying or sun-drying or drying (not through finishing) in 50oC.

[0036] 2. The above-mentioned paste is supplied to continuous countercurrent extraction equipment through a continuous feeder, and continuously countercurrent extracted with hot water above 80 °C.

[0037] 3. Filtration: pass through a 80-mesh sieve to facilitate the next step of microfiltration.

[0038] 4. Microfiltration: The filtered filtrate is subjected to microfiltration through a microfiltration machine (pore size: 0.5 μm). Pre-filtration of ultrafiltration.

[0039] 5. Ultrafiltration: The filtrate after microfiltration is subjected to ultrafiltration through an ultrafiltration machine (pore size: 1...

Embodiment 2

[0045] The method for extracting tea pigment from tea leaves is completed according to the following steps:

[0046] 1. Pre-treatment of tea leaves: Grind the fresh tea leaves into a paste of about 40 mesh in a meat blender. Leave for 1 hour.

[0047] 2. The above-mentioned paste is supplied to continuous countercurrent extraction equipment through a continuous feeder, and continuously countercurrent extracted with hot water above 80 °C.

[0048] 3. Filtration: pass through a 80-mesh sieve to facilitate the next step of microfiltration.

[0049] 4. Microfiltration: The filtered filtrate is subjected to microfiltration through a microfiltration machine (pore size: 0.5 μm). Pre-filtration of ultrafiltration.

[0050] 5. Ultrafiltration: The filtrate after microfiltration is subjected to ultrafiltration through an ultrafiltration machine (aperture 100,000 Daltons), to filter out impurities such as protein, pectin, resin, bacteria, starch, etc., to ensure the quality of raw mat...

Embodiment 3

[0056] Preparation of tea pigment capsules:

[0057] 1. Preparation of capsule material glue:

[0058] ①Formulation: gelatin: glycerin: pure water: natural edible carbon black = 38:11:49:0.25.

[0059] ②Step: Take gelatin and add appropriate amount of pure water to make it swell. Put the glycerin and the remaining pure water in a glue pot and heat to 70-80°C, mix evenly, add the expanded gelatin, stir, melt, keep warm for 1-2 hours, let stand to make the foam float up, and scrape off the floating foam , filter with white cloth, and keep warm for later use.

[0060] 2. Film production: Take the prepared capsule material glue, apply it on the flat steel plate surface to make the thickness uniform, and then heat it at a temperature of about 90°C to evaporate the surface water, and become a soft film with a certain degree of elasticity with suitable toughness .

[0061] 3. Preparation of contents:

[0062] ① Formula: the tea pigment raw material and corn oil in Example 1, the...

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PUM

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Abstract

The invention discloses a method for extracting tea pigment from tea. The method is characterized by including the following steps: (1) rubbing tea leaves into 20-40 mesh mash, and standing for 1-4 hours; (2) performing continuous countercurrent extraction on the mash by hot water with temperature being higher than 80 DEG C; (3) filtering the extracting solution by using 80-mesh screen cloth, performing microfiltration, ultrafiltration and nanofiltration concentration until the density of the extracting solution is 1.15-1.2 g / cm<3>, performing vacuum concentration until the density of the extracting solution is 1.3g / cm<3>, and spray drying and crushing to obtain a product. The invention further discloses a tea pigment soft capsule, composed of contents and a capsule material, wherein the contents are tea pigment extracted in claim 1 and edible vegetable oil, and the weight ratio of the tea pigment to the edible vegetable oil is 1:(2-4); the capsule material is prepared from gelatin, glycerin, pure water and natural edible pigment according to a ratio being (38-39):(11-12):(49-50):(0.25-0.3) in parts by weight. The extraction method disclosed by the invention is energy-saving, low in cost and environmental-friendly, and the content of the obtained product tea pigment is high. The properties of the prepared soft capsule are stable.

Description

technical field [0001] The invention relates to a method for extracting tea pigment from tea leaves, and also relates to a tea pigment soft capsule. Background technique [0002] Tea pigment is a kind of natural high bioactive compound formed by enzymatic / non-enzymatic oxidative dehydrogenation polymerization of pairs of catechins in fresh tea or green tea. Its main components are thea yellow pigments, tea red pigments and tea brown A mixture of polyphenols and their derivatives. Tea pigments have a strong ability to resist oxidation and eliminate free radicals, among which theaflavins and thearubigins are the most active, and have been used as raw materials for the prevention and treatment of cardiovascular and cerebrovascular diseases, atherosclerosis, blood fat and blood pressure, and other pharmaceutical raw materials. It is light yellow-red to dark red amorphous powder, easily soluble in alcohol and ethyl acetate, and soluble in water. At present, the methods for extr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/82A61K9/48A61P3/06A61P7/02A61P39/06A61P9/00A61P37/04
Inventor 刘志炯许效鸿王祖海
Owner CHONGQING HAILIYUN TECH
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