Hydroxypropyl methylcellulose enteric empty capsule jellied by carrageenan and potassium citrate

A technology of hypromellose and potassium citrate, which is applied in the directions of capsule delivery, medical preparations of inactive ingredients, pharmaceutical formulations, etc., can solve the problems of insufficient film-forming properties and storage stability of capsules, and the disintegration rate of gelatin capsules. It can reduce the risk of drug hygroscopicity, no risk of animal infectious diseases, and not easy to rot and deteriorate.

Active Publication Date: 2014-12-24
SICHUAN TIANSHENG PHARMA
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, gelatin capsules obviously have the defect of slow disintegration speed. At the same time, the huge gelatin empty capsule market and its industrial chain have also brought many quality problems and safety risks.
After the "Chromium Exceeding Standard Capsule Incident", more attention has been paid to the safety issues of capsules; at the same time, with the occurrence of animal diseases such as "mad cow disease" and "foot-and-mouth disease", people have a lot of interest in making gelatin raw materials from animal leather and bones. There is great anxiety, the empty capsules mainly produced from animal gelatin have great potential safety hazards
[0005] In view of this, scientific research institutions at home and abroad have strengthened the research on plant-based capsules. So far, a variety of non-gelatin hollow capsules have been developed. 68%-88% pullulan, 10%-30% hypromellose, 1%-3% gel, 0.1%-0.5% coagulant, 0.1%-0.5% Surfactants and 0.1%-0.3% pigments are prepared into glue and dipped in glue. This patent solves the problems of slow disintegration speed and potential safety hazards of gelatin capsules, but it is obvious in the film-forming and storage stability of the capsule body. Not enough, it also has adverse effects on certain drugs in the capsule, and the surfactant in it has been expressly banned

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take 10kg of hypromellose, put it into 33L of purified water with a temperature of 77°C, stir continuously at a stirring speed of 1550rpm and cool it naturally to 22°C, then keep it for 60 minutes, and then heat the solution to 35°C to obtain hydroxypropyl methylcellulose Methocel solution; then take 40g of carrageenan and dissolve it in 3.8L of purified water at a temperature of 35°C, stir for 5min at a speed of 2550rpm, add it to the hypromellose solution after it is completely dissolved, and continue stirring for 3min at a speed of 1550rpm , and mix evenly; then take 54g of potassium citrate and add it to the hypromellose solution, continue to stir at a speed of 1550rpm and naturally cool to 22°C, let it stand for 2min, then heat the solution to 35°C, and then keep it for 60min , to get impregnated stable colloidal solution, then dipped in glue to form a mold, and then dried at 30°C to obtain a dry capsule stick; then dipped the capsule stick into the organic solution...

Embodiment 2

[0025] Take 50kg of hypromellose, put it into 170L of purified water with a temperature of 80°C, stir continuously at a stirring speed of 1600rpm and cool it naturally to 25°C, then keep it for 75 minutes, and then heat the solution to 40°C to obtain hydroxypropyl methylcellulose Methocel solution; then take 205g of carrageenan and dissolve it in 20L of purified water at a temperature of 45°C, stir at a speed of 2600rpm for 4min, add it to the hypromellose solution after it is completely dissolved, and continue stirring at a speed of 1600rpm for 2.5min , mix evenly; then take 276g of potassium citrate and add it to the hypromellose solution, continue to stir at a speed of 1600rpm and cool it down to 25°C naturally, let it stand for 2.5min, then heat the solution to 45°C, and keep it warm After 90 minutes, a stable colloidal solution was obtained, dipped in glue to form a mold, and then dried at 32°C to obtain a dry capsule stick; then the capsule stick was immersed in the hypro...

Embodiment 3

[0027] Take 100kg of hypromellose, put it into 350L of purified water with a temperature of 83°C, stir continuously at a stirring speed of 1650rpm and cool it naturally to 28°C, then keep it for 90 minutes, and then heat the solution to 45°C to obtain hydroxypropyl methylcellulose Methocel solution; then take 420g of carrageenan and dissolve it in 42L of purified water at a temperature of 40°C, stir at a speed of 2650rpm for 3min, add it to the hypromellose solution after it is completely dissolved, and continue to stir at a speed of 1650rpm for 2min, Mix evenly; then take 560g of potassium citrate and add it to the hypromellose solution, continue to stir at a speed of 1650rpm and cool it down to 28°C naturally, let it stand for 3 minutes, then heat the solution to 40°C, and then keep it for 120 minutes. Get impregnated and stable colloidal solution, then dip into the glue to form a mold, and then dry at 35°C to obtain a dry capsule stick; then immerse the capsule stick in the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a hydroxypropyl methylcellulose enteric empty capsule jellied by carrageenan and potassium citrate, which belongs to the technical field of empty capsule production, is characterized in that the hydroxypropyl methylcellulose is taken as the main raw material and mixed with the carrageenan and the potassium citrate under a special condition and has the following benefits: disintegration is timely, water content is low, the hydroxypropyl methylcellulose enteric empty capsule is suitable for medicine having strong hygroscopicity and being sensitive to water diversion, the dissolution medium has less impact on the capsule shell, and the pharmacal compliance is high; the period of validity for storage is three to four years without going bad, the requirement on the conditions for storage and transportation is low, and the capsule is difficult to break under a low humidity environment or difficult to deform, rot and go bad under a high temperature environment; the pure plant fiber conforms to the demands of people with different cultural backgrounds; non-pollution is realized during the production process, and the tailing can be redissolved and utilized; the frequently-used surface active agent and plasticizer are eliminated, the potassium citrate is utilized to jelly the carrageenan so as to decrease the gelation temperature and accelerate the gelation speed, the additive is reduced, the production cost is decreased, and the hydroxypropyl methylcellulose enteric empty capsule jellied by carrageenan and potassium citrate is suitable for large-scale popularization.

Description

technical field [0001] The invention belongs to the technical field of hollow capsule production, in particular to a plant-based enteric-coated hollow capsule made of carrageenan and potassium citrate gel prepared from hypromellose as a raw material. Background technique [0002] The hollow capsule is composed of a cap and a body made of refined medicinal materials, and is used to hold solid medicines; such as self-made powders, health products, medicines, etc., which solves the problems of difficult entrance and poor taste for users, and truly realizes The good medicine is no longer bitter; because the hollow capsules are easy to swallow and can effectively mask the unpleasant taste and smell of the contents, they are becoming more and more popular among patients. [0003] The current hollow capsules mainly include animal gelatin capsules and various vegetable capsules. In my country, gelatin hollow capsules account for the vast majority. At present, gelatin hollow capsules...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): A61K9/48A61K47/36A61K47/12A61K47/38
Inventor 陈光伦张强
Owner SICHUAN TIANSHENG PHARMA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products