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

A technology of tea pigment and soft capsule, applied in the directions of tea extraction, capsule delivery, pharmaceutical formulation, etc., can solve the problem of no soft capsule, etc., and achieve the effect of diluting blood viscosity, high extraction rate of raw materials, and scavenging oxygen free radicals.

Active Publication Date: 2017-05-24
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. The fresh tea leaves can also be air-dried or sun-dried or dried (without finishing) at 50oC.

[0036] 2. The above-mentioned paste is supplied to continuous countercurrent extraction equipment through a continuous feeder, and 80 0 Continuous countercurrent extraction of hot water above 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: 100,000 Daltons) to filter out i...

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 80 0 Continuous countercurrent extraction of hot water above 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 (pore size: 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. In addition, heat the glycerin and the remaining pure water in a glue pot to 70-80 0 C. Mix evenly, add expanded gelatin and stir, melt, keep warm for 1-2 hours, let stand to make the foam float up, scrape off the floating foam, filter with white cloth, keep warm for later use.

[0060] 2. Film making: Take the prepared capsule material glue and apply it on the flat steel plate surface to make the thickness uniform, and then use 90 0 Heating at a temperature of about C makes the surface moisture evaporate and becomes a soft film with a certain degree of elasticity with suitable toughness.

[0061] 3. Preparation of contents:

[0062] ①Formulation: The tea pigment raw material and corn oil in E...

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PUM

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Abstract

The invention discloses a method for extracting tea pigment from tea leaves, which is characterized in that: extraction is carried out according to the following steps: (1) mince tea leaves into 20-40 mesh paste, place for 1-4h (2) use a temperature greater than Continuous countercurrent extraction of the above-mentioned paste with hot water at 80°C; (3) Filter the extract with an 80-mesh screen, then concentrate it through microfiltration, ultrafiltration, and nanofiltration until the density of the extract is 1.15-1.2g / cm3 , and then vacuum-concentrated until the density of the extract is 1.3g / cm3, spray-dried and pulverized to obtain the product. The invention also discloses a tea pigment soft capsule, which is composed of content and capsule material, the content is the tea pigment and edible vegetable oil extracted in claim 1, and the weight ratio of the tea pigment to edible vegetable oil is 1:2 ‑4; the capsule material is made from raw materials with a ratio of parts by weight of gelatin: glycerin: pure water: natural food coloring = 38‑39: 11‑12: 49‑50: 0.25‑0.3. The extraction method of the invention is energy-saving, low-cost and environment-friendly, and the obtained product has high tea pigment content. The prepared soft capsules have stable properties.

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 Patents(China)
IPC IPC(8): A23F3/18A61K9/48A61K36/82A61P3/06A61P7/02A61P39/06A61P9/00A61P37/04
Inventor 刘志炯许效鸿王祖海
Owner CHONGQING HAILIYUN TECH
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