CN103315976B - A kind of preparation method of starch hard capsule case - Google Patents
A kind of preparation method of starch hard capsule case Download PDFInfo
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- CN103315976B CN103315976B CN201310233598.4A CN201310233598A CN103315976B CN 103315976 B CN103315976 B CN 103315976B CN 201310233598 A CN201310233598 A CN 201310233598A CN 103315976 B CN103315976 B CN 103315976B
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Abstract
The invention discloses a kind of preparation method of starch hard capsule case, in mass fraction, by 20 30 parts of deionized waters, 60 80 parts of starch or starch blend, 2 10 parts of edible plasticizers and 0.1 2 parts of edible lubricants put into high-speed mixer and be uniformly mixed; Use twin screw response type extruder mixed material extruding pelletization; Use single screw extrusion machine that pellet is prepared into sheet material; The mold temperature of plastic suction forming apparatus is adjusted to 50 100 DEG C, preheating; Softening on warm table starch sheet material being fixed on plastic suction forming apparatus; To plastics suction mould evacuation, make the sheet material softened above mould, obtain starch hard capsule case.The present invention efficiently solves traditional dip forming legal system for starch hard capsule case drying time is long, energy consumption is large, production efficiency is low and the difficult problem such as unstable product quality, the starch hard capsule case prepared does not need dry run, with short production cycle, capsule softgel shell uniform wall thickness consistent, dimensionally stable.
Description
Technical field
The present invention relates to a kind of capsule shells, particularly relate to a kind of novel processing step of starch hard capsule case, this starch hard capsule case is used for medicine and health food packing material.
Background technology
Hard capsule means makes uniform powder or granule by a certain amount of medicine and suitable adjuvant, loads and makes in empty hard capsule.In modern Chinese medicine preparation is produced, hard capsule because technical process is relatively simple, taking convenience, rapid-action, can effectively isolate the advantages such as the bad smell of medicine, be widely used in recent years.
On current market, hard capsule product is mainly using gelatin as softgel shell, and gelatine capsule production technology is simple, but working condition is harsh, requires strict to the temperature and humidity of Workplace, finished product to grow drying time and energy consumption large.Also there are some performance issues in capsule product, as to wet and the protective effect of oxygen sensitive medicaments is poor, easy in esophagus adhesion, in storage, have the phenomenon such as prolonged disintegration and drug dissolution reduction.The physicochemical property of gelatin itself and the complexity in source, resistance to control determine product and there is many defects being difficult to performance and the secure context overcome, and simultaneously people is for mix or artificial pollution reason causes heavy metals exceeding standard to be difficult to radical cure.Due to the above-mentioned defect of gelatine capsule, religion and the factor of vegetarianism, the driving of market profit, many scientific research institutions and enterprise all start active development novel plant capsule.
Along with the progress of expanding economy and science and technology, save energy, reduce energy consumption, reduce production cost and become the inexorable trend of capsule industry development, this area in the urgent need to develop new non-gelatin, vegetative hard capsule casing material and production technology thereof.Starch is renewable plant resources macromolecule, there is the advantages such as wide material sources, pollution-free, low price, the reactive extrursion of starch (base) hard capsule case and vacuum suction moulding multiple techniques succeed in developing the lifting can accelerating China's capsule adjuvant industry technology level, improve the product quality class of China's pharmaceutic adjuvant industry.
Summary of the invention
The object of the invention is the shortcoming overcoming prior art, provide a kind of energy-conservation, low cost, production efficiency are high, adapt to the wide novel method preparing starch (base) hard capsule case.
For reaching goal of the invention, the technology used in the present invention measure one is:
A preparation method for starch hard capsule case, comprises the steps:
1) in mass fraction, by 20 ?30 parts of deionized waters, 60 ?80 parts of starch or starch blend, 2 ?10 parts of edible plasticizers and 0.1 ?2 parts of edible lubricants put into high-speed mixer, temperature control 50 ?under 60 ° of C conditions, be uniformly mixed 1 ?5 minutes, obtain mixture; Described edible plasticizer is one or more in glycerol, Sorbitol, ethylene glycol, Glycerine 1,3-diacetate, mannitol, monoacetin and polypropylene glycol; Described edible lubricant is stearic acid, edible fat acid glyceride or its combination; Described starch is one or more in potato starch, corn starch, wheaten starch, rice starch, tapioca; Or described starch is by one or more in etherificate, esterification, cross-linking modified potato starch, corn starch, wheaten starch, rice starch and tapioca; Described starch blend is the blend of starch and gelatin or edible fiber; By percentage to the quality, in starch blend starch account for 30 ?70%; Gelatin or edible fiber account for 70 ?30%;
2) use twin screw response type extruder mixed material extruding pelletization;
3) use single screw extrusion machine that pellet is prepared into sheet material;
4) mold temperature of plastic suction forming apparatus is adjusted to 50 ?100 DEG C, preheating 8 ?12 minutes;
5) softening on warm table starch sheet material being fixed on plastic suction forming apparatus, heating-up temperature be 115 ?125 DEG C, the time be 1.5 ?3 seconds;
6) mould upwards plays punching and starts vacuum system, to plastics suction mould evacuation, makes the sheet material softened above mould, obtains starch hard capsule case.
Preferably, the speed that described high-speed mixer is uniformly mixed be 1500 ?2000 revs/min.The operative temperature of described double screw extruder be 90 ?160 DEG C, screw speed be 75 ?300r/min.Described single screw extrusion machine operative temperature be 100 ?170 DEG C, screw speed be 60 ?300r/min.The vacuum pressure of described evacuation be 0.5 ?2.0Mpa.
Relative to prior art, tool of the present invention has the following advantages:
1) preparation technology of the starch capsule reported at present is most and gelatine capsule is similar, adopt traditional dip forming method, but this technique faces the insufficient strength of starch material and the too high problem of starch solution viscosity, cannot flow in glue groove, wayward thickness and carry out automated production.The processing of traditional plastic extrusion and plastics sucking moulding technology are applied in the research of starch capsule by the present invention after improving, and not only breach the yoke that traditional method prepares starch capsule, reduce raw material and processing cost simultaneously, be convenient to the promotion development of product.
2) the present invention adopts the method extruding processing and plastics sucking moulding coupling to prepare starch (base) hard capsule case first, provide a kind of new capsule shells production method, this technology can make full use of existing plastics-production equipment, improve the production efficiency of amylan softgel shell, reduce production cost.
3) starch (base) the hard capsule case good forming effect prepared, capsule softgel shell uniform wall thickness is consistent, and dimensionally stable, to meet the need of market.
Detailed description of the invention
Below in conjunction with embodiment, technical scheme of the present invention is further described, but the scope of protection of the invention is not limited to the scope of embodiment statement.Operating environment temperature: room temperature.
Embodiment 1
A kind of preparation method of starch (base) hard capsule case, comprises the steps:
1) in mass fraction, 25 parts of deionized waters, 70 parts of corn starchs, 4.8 parts of glycerol and 0.2 part of stearic acid are put into high-speed mixer (mixing speed is 1600 revs/min, and temperature controls at 60 ° of C) and is uniformly mixed 2 minutes, obtain mixture;
2) use twin screw response type extruder (screw slenderness ratio is 40:1) mixed material extruding pelletization, twin screw response type extruder is divided into delivery area, admittedly molten mixed zone to melt Conveying district from charging aperture to head, totally 8 intervals, 8 silicon carbide are respectively 45 DEG C, 70 DEG C, 120 DEG C, 150 DEG C, 150 DEG C, 130 DEG C, 120 DEG C and 105 DEG C, and screw speed is 140r/min;
3) use single screw extrusion machine (screw slenderness ratio is 30:1) that pellet is prepared into sheet material simultaneously, the temperature of extruder piecewise interval is respectively 45 DEG C, 70 DEG C, 120 DEG C, 150 DEG C, 150 DEG C, 130 DEG C, 120 DEG C and 105 DEG C, screw speed is 140r/min, the starch sheet material obtained is wide is 1.2 meters, and thickness is 0.3MM; After testing, the stretch modulus of starch sheet material is 1400MPa, and hot strength is 25Mpa.
4) open plastic suction forming apparatus (HSC ?5105570 types, Zhejiang Honghua Machinery Plastic Co., Ltd.) on and off switch and regulate hard capsule Die and mould plate temperature, Die and mould plate length and width are respectively 50CM X60CM, on have dismountable cylindrical shape hard capsule cap or body pin, be applicable to the capsule shaping that model is 0#, 1#, 2#, 3#, 4#, one-time formed quantity is 300, mold temperature is adjusted to 80 DEG C, preheating 10 minutes;
5) softening on warm table corn starch sheet material being fixed on plastic suction forming apparatus, heating-up temperature is 140 DEG C, and the time is 2 seconds;
6) mould upwards plays punching and starts vacuum system, to plastics suction mould evacuation, vacuum pressure reaches 1.2Mpa, make the sheet material softened above mould, (hard capsule is cylindrical, point two supporting up and down joints, i.e. cap and body to obtain hard capsule case, both have respective groove and wedge, closely overlap integrator).
7) after cooling 3 seconds, quicker de-mold, and trimming is rested and reorganized, cover synthesizes hollow starch hard capsule case.The starch hard capsule case of gained is transparent, free from extraneous odour.Through thermal analyses test, moisture is lower than 15%; Under stirring at a slow speed, the time be dissolved in pH value 7 water is less than 15 minutes.Compared with the starch hard capsule standby with adopting traditional dip forming legal system, the tensile strength of material adopting extrusion molding to prepare can improve 20%.The capsule of gained was reduced to 1 minute from 5 hours drying time, improve production efficiency and reduced production cost.
Embodiment 2
A preparation method for starch hard capsule case, comprises the steps:
1) in mass fraction, 20 parts of deionized waters, 60 parts of potato starch, 20 parts of gelatin, 3 parts of glycerol, 0.5 part of Sorbitol, 0.5 part of stearic acid are put into high-speed mixer, and (mixing speed is 1500 revs/min, temperature controls at 55 ° of C) be uniformly mixed 5 minutes, obtain mixture;
2) use twin screw response type extruder (screw slenderness ratio is 40:1) mixed material extruding pelletization, twin screw response type extruder is divided into delivery area, admittedly molten mixed zone to melt Conveying district from charging aperture to head, totally 8 intervals, 8 silicon carbide are respectively 50 DEG C, 75 DEG C, 125 DEG C, 145 DEG C, 155 DEG C, 135 DEG C, 125 DEG C and 115 DEG C, and screw speed is 180r/min;
3) use single screw extrusion machine (screw slenderness ratio is 30:1) that pellet is prepared into sheet material simultaneously, the temperature of extruder piecewise interval is respectively 45 DEG C, 70 DEG C, 120 DEG C, 150 DEG C, 150 DEG C, 130 DEG C, 120 DEG C and 105 DEG C, screw speed is 200r/min, the starch sheet material obtained is wide is 1.2 meters, and thickness is 0.2MM; After testing, the stretch modulus of starch base sheet material is 1700MPa, and hot strength is 20Mpa.
4) open plastic suction forming apparatus (HSC ?5105570 types, Zhejiang Honghua Machinery Plastic Co., Ltd.) on and off switch and regulate hard capsule Die and mould plate temperature, Die and mould plate length and width are respectively 50CM X60CM, on have dismountable cylindrical shape hard capsule cap or body pin, be applicable to the capsule shaping that model is 0#, 1#, 2#, 3#, 4#, one-time formed quantity is 300, mold temperature is adjusted to 70 DEG C, preheating 8 minutes;
5) softening on warm table starch base sheet material being fixed on plastic suction forming apparatus, heating-up temperature is 145 DEG C, and the time is 2 seconds;
6) mould upwards plays punching and starts vacuum system, to plastics suction mould evacuation, vacuum pressure reaches 0.9Mpa, make the sheet material softened above mould, (hard capsule is cylindrical, point two supporting up and down joints, i.e. cap and body to obtain hard capsule case, both have respective groove and wedge, closely overlap integrator).
7) after cooling 3 seconds, quicker de-mold, and trimming is rested and reorganized, cover synthesizes hollow starch hard capsule case.The starch base hard capsule case of gained is transparent, free from extraneous odour.Through thermal analyses test, moisture is lower than 17%; Under stirring at a slow speed, the time be dissolved in pH value 7 water is less than 15 minutes.Compared with the starch hard capsule standby with adopting traditional dip forming legal system, the tensile strength of material adopting extrusion molding to prepare can improve 30%.
Embodiment 3
A preparation method for starch hard capsule case, comprises the steps:
1) in mass fraction, by 30 parts of deionized waters, 80 parts of hydroxypropyl corn starch (substitution value is 0.03), 5 parts of glycerol, 1 part of monoacetin and 1 part of ethylene glycol, (mixing speed is 2000 revs/min to put into high-speed mixer, temperature controls at 55 ° of C,) be uniformly mixed 1.5 minutes, obtain mixture;
2) use twin screw response type extruder (screw slenderness ratio is 40:1) mixed material extruding pelletization, twin screw response type extruder is divided into delivery area, admittedly molten mixed zone to melt Conveying district from charging aperture to head, totally 8 intervals, 8 silicon carbide are respectively 45 DEG C, 70 DEG C, 110 DEG C, 125 DEG C, 145 DEG C, 135 DEG C, 115 DEG C and 110 DEG C, and screw speed is 180r/min;
3) use single screw extrusion machine (screw slenderness ratio is 30:1) that pellet is prepared into sheet material simultaneously, the temperature of extruder piecewise interval is respectively 45 DEG C, 70 DEG C, 110 DEG C, 130 DEG C, 130 DEG C, 110 DEG C, 100 DEG C and 95 DEG C, screw speed is 220r/min, the starch sheet material obtained is wide is 1.2 meters, and thickness is 0.2MM; After testing, the stretch modulus of starch sheet material is 2300MPa, and hot strength is 19Mpa;
4) open plastic suction forming apparatus (HSC ?5105570 types, Zhejiang Honghua Machinery Plastic Co., Ltd.) on and off switch and regulate hard capsule Die and mould plate temperature, Die and mould plate length and width are respectively 50CM X60CM, on have dismountable cylindrical shape hard capsule cap or body pin, be applicable to the capsule shaping that model is 0#, 1#, 2#, 3#, 4#, one-time formed quantity is 300, mold temperature is adjusted to 75 DEG C, preheating 10 minutes;
5) softening on warm table starch sheet material being fixed on plastic suction forming apparatus, heating-up temperature is 130 DEG C, and the time is 2 seconds;
6) mould upwards plays punching and starts vacuum system, to plastics suction mould evacuation, vacuum pressure reaches 0.9Mpa, make the sheet material softened above mould, (hard capsule is cylindrical, point two supporting up and down joints, i.e. cap and body to obtain hard capsule case, both have respective groove and wedge, closely overlap integrator).
7) after cooling 2 seconds, quicker de-mold, and trimming is rested and reorganized, cover synthesizes hollow starch hard capsule case.The starch hard capsule case of gained is transparent, free from extraneous odour.Through thermal analyses test, moisture is lower than 15%; Under stirring at a slow speed, the time be dissolved in pH value 7 water is less than 15 minutes.
Embodiment 4
A preparation method for starch hard capsule case, comprises the steps:
1) in mass fraction, 25 parts of deionized waters, 70 parts of corn starchs, 10 parts of soybean dietary fibers, 5 parts of glycerol and Polyethylene Glycol 2 parts are put into high-speed mixer, and (mixing speed is 1800 revs/min, temperature controls at 50 ° of C) be uniformly mixed 5 minutes, obtain mixture;
2) use twin screw response type extruder (screw slenderness ratio is 40:1) mixed material extruding pelletization, twin screw response type extruder is divided into delivery area, admittedly molten mixed zone to melt Conveying district from charging aperture to head, totally 8 intervals, 8 silicon carbide are respectively 75 DEG C, 110 DEG C, 130 DEG C, 150 DEG C, 150 DEG C, 130 DEG C, 120 DEG C and 105 DEG C, and screw speed is 150r/min;
3) use single screw extrusion machine (screw slenderness ratio is 30:1) that pellet is prepared into sheet material simultaneously, the temperature of extruder piecewise interval is respectively 70 DEG C, 90 DEG C, 120 DEG C, 150 DEG C, 150 DEG C, 130 DEG C, 120 DEG C and 110 DEG C, screw speed is 170r/min, the starch sheet material obtained is wide is 1.2 meters, and thickness is 0.3MM; After testing, the stretch modulus of starch sheet material is 2800MPa, and hot strength is 18Mpa.
4) open plastic suction forming apparatus (HSC ?5105570 types, Zhejiang Honghua Machinery Plastic Co., Ltd.) on and off switch and regulate hard capsule Die and mould plate temperature, Die and mould plate length and width are respectively 50CM X60CM, on have dismountable cylindrical shape hard capsule cap or body pin, be applicable to the capsule shaping that model is 0#, 1#, 2#, 3#, 4#, one-time formed quantity is 300, mold temperature is adjusted to 90 DEG C, preheating 7 minutes;
5) softening on warm table starch base sheet material being fixed on plastic suction forming apparatus, heating-up temperature is 120 DEG C, and the time is 2 seconds;
6) mould upwards plays punching and starts vacuum system, to plastics suction mould evacuation, vacuum pressure reaches 1.0Mpa, make the sheet material softened above mould, (hard capsule is cylindrical, point two supporting up and down joints, i.e. cap and body to obtain hard capsule case, both have respective groove and wedge, closely overlap integrator).
7) after cooling 5 seconds, quicker de-mold, and trimming is rested and reorganized, cover synthesizes hollow starch hard capsule case.The starch hard capsule case of gained is transparent, free from extraneous odour.Through thermal analyses test, moisture is lower than 15%; Under stirring at a slow speed, the time be dissolved in pH value 7 water is less than 15 minutes.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize above-mentioned technology contents to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (4)
1. a preparation method for starch hard capsule case, is characterized in that comprising the steps:
1) in mass fraction, by 20 ?30 parts of deionized waters, 60 ?80 parts of starch or starch blend, 2 ?10 parts of edible plasticizers and 0.1 ?2 parts of edible lubricants put into high-speed mixer, temperature control 50 ?under 60 DEG C of conditions, be uniformly mixed 1 ?5 minutes, obtain mixture; Described edible plasticizer is one or more in glycerol, Sorbitol, ethylene glycol, Glycerine 1,3-diacetate, mannitol, monoacetin and polypropylene glycol; Described edible lubricant is stearic acid, edible fat acid glyceride or its combination; Described starch is one or more in potato starch, corn starch, wheaten starch, rice starch, tapioca; Or described starch is by one or more in etherificate, esterification, cross-linking modified potato starch, corn starch, wheaten starch, rice starch and tapioca; Described starch blend is the blend of starch and gelatin or edible fiber; By percentage to the quality, in starch blend starch account for 30 ?70%; Gelatin or edible fiber account for 70 ?30%;
2) use twin screw response type extruder mixed material extruding pelletization;
3) use single screw extrusion machine that pellet is prepared into sheet material;
5) mold temperature of plastic suction forming apparatus is adjusted to 50 ?100 DEG C, preheating 8 ?12 minutes;
6) softening on warm table starch sheet material being fixed on plastic suction forming apparatus, heating-up temperature be 115 ?125 DEG C, the time be 1.5 ?3 seconds;
7) mould upwards plays punching and starts vacuum system, to plastics suction mould evacuation, makes the sheet material softened above mould, obtains starch hard capsule case.
2. the preparation method of starch hard capsule case according to claim 1, is characterized in that: the speed that described high-speed mixer is uniformly mixed be 1500 ?2000 revs/min.
3. the preparation method of starch hard capsule case according to claim 1, is characterized in that: the operative temperature of described double screw extruder be 90 ?160 DEG C, screw speed be 75 ?300r/min.
4. the preparation method of starch hard capsule case according to claim 1, is characterized in that: described single screw extrusion machine operative temperature be 100 ?170 DEG C, screw speed be 60 ?300r/min.
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| CN104224749B (en) * | 2014-10-10 | 2016-03-02 | 青岛澳海生物有限公司 | A kind of novel non-gelatin soft capsule and preparation method thereof |
| CN105232493A (en) * | 2015-10-29 | 2016-01-13 | 华南理工大学 | Gelatin/hydroxypropyl starch blended hard capsule as well as preparation method thereof |
| CN105832698A (en) * | 2016-04-19 | 2016-08-10 | 常州市蓝勖化工有限公司 | Method for preparing hollow capsule shells by using ocentyl succinic anhydride taro starch ester |
| CN107550737B (en) * | 2017-08-25 | 2020-05-05 | 贵州盛茂白芨开发有限公司 | Method for preparing bletilla striata polysaccharide capsule |
| CN113842372B (en) * | 2021-09-30 | 2023-02-24 | 南京财经大学 | Starch-based capsule coat and preparation method and application thereof |
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| CN1695600A (en) * | 2005-05-13 | 2005-11-16 | 天津大学 | Method for preparing components, capsules and capsule wall material of combination of natural polysaccharide macromolecules |
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| CN1695600A (en) * | 2005-05-13 | 2005-11-16 | 天津大学 | Method for preparing components, capsules and capsule wall material of combination of natural polysaccharide macromolecules |
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