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.
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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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