CN102775815B - Preparation method of gel additives with controllable slow release - Google Patents
Preparation method of gel additives with controllable slow release Download PDFInfo
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- CN102775815B CN102775815B CN201210275816.6A CN201210275816A CN102775815B CN 102775815 B CN102775815 B CN 102775815B CN 201210275816 A CN201210275816 A CN 201210275816A CN 102775815 B CN102775815 B CN 102775815B
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Abstract
The invention discloses a preparation method of gel additives with controllable slow release. The preparation method comprises the steps of adding water in seaweed glue and gel additives to boil until the seaweed glue and the gel additives are completely dissolved, treating through high-pressure or super-pressure plants, atomizing and drying for prilling to obtain end products or treating through the high-pressure or super-pressure plants, quickly freezing through a single freezing machine, quickly thawing through microwave, conducting filter pressing on freeze thawing mixed liquor to be dewatered through a plate-and-frame filter press, extruding films obtained by filter pressing through a twin-screw extruder, conducting microwave drying on extrusive colloid, airing or stoving, smashing and sieving to obtain the end products. The preparation method has the advantages that prepared gel additives of alginate have good slow release effects, achieve controllable time and speed of gel and greatly expand application field and production process of the alginate.
Description
Technical field
The present invention a kind ofly relates to the gelling temp of requisite alginates in foodstuffs industry, daily chemical industry, biotechnology, pharmacy, scientific research, the preparation method of the auxiliary agent of the controllability of time.
Technical background:
Alginates is the polysaccharide material extracting from the brown alga of ocean, belongs to lyophilic colloid; The gel with good thickening, gel and water retention property, particularly its heat irreversible is widely used in foodstuffs industry, daily chemical industry, biotechnology, pharmacy.But the characteristic because of alginates aqueous solution chance gelifying agent moment and gel, has seriously hindered it in different production technique and the application in field.
Marine red alga carrageenan gum, agar all have ability dissolution characteristics in more than 70 ℃ hot water; So, through its inlay, the gelifying agent of nano-encapsulated technical finesse, can only be in the process of heating, along with the dissolving of colloid, and progressively discharge, and react with alginates, thereby reach, delay and controlled gel requirement, met the technical qualification of production technique.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, a kind of production method of gel auxiliary agent of controlled, slowly-releasing is provided, use the marine red alga colloids such as agar, carrageenin, the gelifying agent of alginates is wrapped up; The gel auxiliary agent had good sustained release effect of preparation, greatly facilitates the needs that industrialization streamline is produced, in actual applications for new He Xin market, field has been opened up in the application of alginates.
The present invention is achieved by the following technical solutions, comprises the following steps:
(1) marine red alga glue is scattered in water, adds gelifying agent, mix, heated and boiled, to dissolving completely, all should be disperseed; Or the front operation of the press filtration that connects traditional production technique, add gelifying agent, mix;
(2), by consoluet mixed solution, with high pressure or extra-high tension unit, process;
(3) then according to any one in following three kinds of methods, process, obtain finished product:
A, by the mixed solution after processing by high pressure or extra-high tension unit, by mono-frozen machine quick freezing to-30--50 ℃, then by microwave quick-thawing, mixed solution after freeze thawing is dewatered with plate-and-frame filter press, the film that press filtration is obtained is with extruding under screw extrusion press heating, by microwave or warm air drying, pulverize and sieve, obtain gel auxiliary agent finished product;
B, by the mixed solution after processing by high pressure or extra-high tension unit, under heating with screw extrusion press with plate-and-frame filter press filter-press dehydration, film that press filtration is obtained, extrude, by microwave or warm air drying, pulverize and sieve, obtain gel auxiliary agent finished product.
C, the colloidal sol after processing by extra-high tension unit is carried out to spray drying granulation, obtain gel auxiliary agent finished product.
The described marine red alga glue of step (1) comprises the aqueous solution of agar powder, OK a karaoke club rubber powder or its marine alga colloid, and the mass body volume concentrations that it is dispersed in water is 1-8%;
The described traditional technology of step (1) refers to that marine alga is sorted, cleans, boils glue, impurity screening, water is separated with colloid with plate-and-frame filter press, film airing or oven dry, pulverizes, sieves, the step of finished product;
The described gelifying agent of step (1) is calcium salt, and its addition is the 1-30% of marine red alga glue;
The described traditional processing technology of step (1) refers to that marine alga is sorted, cleans, boils glue, impurity screening, water is separated with colloid with plate-and-frame filter press, film airing or oven dry, pulverizes, sieves, the step of finished product;
The described extra-high tension unit of step (2) can be high pressure or superhigh-voltage homogenizing machine or mulser, and its pressure is 40-150Mpa;
Described in step (3) a, the temperature of mono-frozen machine quick freezing is-30--50 ℃;
Described in step (3) a, b, the working temperature of screw extrusion press is less than 110 ℃.
Production method of the present invention has the following advantages: the gel auxiliary agent had good sustained release effect preparing, and gelation time is controlled, and the widespread use having in fields such as medicine, agricultural, food, daily use chemicals is worth.
Embodiment
Below by embodiment more detailed description implementation result of the present invention.
Embodiment 1
Get 50g agar and 10g CaCO
3be scattered in 1000g water, mix, heated and boiled is to dissolving completely; Consoluet mixed solution is processed with the pressure of 110Mpa with superhigh-voltage homogenizing machine; Colloid after processing is sprayed dry, make the gel auxiliary agent finished product of controllable sustained-release.
As required, by making the gel auxiliary agent finished product of controllable sustained-release, join in the sodium alginate aqueous solution of 500g1%, be heated to 90 ℃, gels C aCO
3beginning, along with the prolongation of time and the rising of temperature, progressively discharges and reacts the weak gel of formation with sodium alginate, until complete, condenses into solid.
Embodiment 2
Get 20g carrageenin and 8g CaCO
3be scattered in 500g water, mix, heated and boiled is to dissolving completely; Consoluet mixed solution is processed with the pressure of 40Mpa with superhigh-voltage homogenizing machine; Colloid after processing is sprayed dry, make gel auxiliary agent finished product controlled, slowly-releasing.
Claim 1.8g to make the gel auxiliary agent finished product of controllable sustained-release, join in the sodium alginate aqueous solution of 150g1%, be heated to 70 ℃, gels C aCO
3beginning, along with the prolongation of time and the rising of temperature, progressively discharges and reacts the weak gel of formation with sodium alginate, until complete, condenses into solid.
Claims (6)
1. a preparation method for the gel auxiliary agent of controlled, slowly-releasing, is characterized in that, comprises the following steps:
(1) marine red alga glue is scattered in water, adds gelifying agent, mix, heated and boiled is to completely dissolving and disperse; Or the front operation of the press filtration that connects traditional marine red alga glue production technique, add gel auxiliary agent, mix;
(2) by dissolving the mixed solution disperseing completely, with high pressure or extra-high tension unit, process, its pressure is 40-150MPa;
(3) then according to any one in following three kinds of methods, process:
A, by the mixed solution after processing by high pressure or extra-high tension unit, use mono-frozen machine quick freezing, then by microwave quick-thawing, mixed solution after freeze thawing is dewatered with plate-and-frame filter press, the film that press filtration is obtained is with extruding under twin screw extruder heating, by microwave or warm air drying, pulverize and sieve, obtain gel auxiliary agent finished product;
B, by the mixed solution after processing by high pressure or extra-high tension unit, under heating with twin screw extruder with plate-and-frame filter press filter-press dehydration, film that press filtration is obtained, extrude, by microwave or warm air drying, pulverize and sieve, obtain gel auxiliary agent finished product;
C, by the mixed solution after processing by high pressure or extra-high tension unit, carry out spray drying granulation, obtain gel auxiliary agent finished product.
2. the production method of the gel auxiliary agent of controlled, slowly-releasing as claimed in claim 1, is characterized in that, the described marine red alga glue of step (1) comprises agar or carrageenin, and the mass volume ratio that seaweed gel is dispersed in water is 1-10%.
3. the production method of the gel auxiliary agent of controlled, slowly-releasing as claimed in claim 1, is characterized in that, the described gelifying agent of step (1) is calcium salt, and its addition is the 1-30% of marine red alga glue.
4. the production method of the gel auxiliary agent of controlled, slowly-releasing as claimed in claim 1, is characterized in that, the described high pressure of step (2) or extra-high tension unit are high pressure or superhigh-voltage homogenizing machine or mulser.
5. the production method of the gel auxiliary agent of controlled, slowly-releasing as claimed in claim 1, is characterized in that, the temperature of utilizing mono-frozen machine quick freezing to reach described in step (3) a is-30 to-50 ℃.
6. the production method of the gel auxiliary agent of controlled, slowly-releasing as claimed in claim 1, is characterized in that, screw extrusion press is large torsion twin screw extruder described in step (3) a, b, and the working temperature of forcing machine is less than 110 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210275816.6A CN102775815B (en) | 2012-08-06 | 2012-08-06 | Preparation method of gel additives with controllable slow release |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210275816.6A CN102775815B (en) | 2012-08-06 | 2012-08-06 | Preparation method of gel additives with controllable slow release |
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| CN102775815A CN102775815A (en) | 2012-11-14 |
| CN102775815B true CN102775815B (en) | 2014-03-26 |
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| CN110713553B (en) * | 2019-10-29 | 2021-12-10 | 广东海洋大学 | Method for extracting carrageenan from hypnea |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1993474A (en) * | 2004-06-03 | 2007-07-04 | 科学和工业研究会 | Cost-effective process for preparing agarose from gracilaria algae |
| CN102030838A (en) * | 2010-10-30 | 2011-04-27 | 中国海洋大学 | High-pressure water vapor degradation method for marine sulfated polysaccharides |
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- 2012-08-06 CN CN201210275816.6A patent/CN102775815B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1993474A (en) * | 2004-06-03 | 2007-07-04 | 科学和工业研究会 | Cost-effective process for preparing agarose from gracilaria algae |
| CN102030838A (en) * | 2010-10-30 | 2011-04-27 | 中国海洋大学 | High-pressure water vapor degradation method for marine sulfated polysaccharides |
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Denomination of invention: Preparation method of gel additives with controllable slow release Effective date of registration: 20180417 Granted publication date: 20140326 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: Qingdao Dehui Ocean Biological Technology Co.,Ltd. Registration number: 2018370010027 |
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