PL403697A1 - Method of preparation of the chitosan solution, composition and method of making the chitosan hydrogel membrane - Google Patents
Method of preparation of the chitosan solution, composition and method of making the chitosan hydrogel membraneInfo
- Publication number
- PL403697A1 PL403697A1 PL403697A PL40369713A PL403697A1 PL 403697 A1 PL403697 A1 PL 403697A1 PL 403697 A PL403697 A PL 403697A PL 40369713 A PL40369713 A PL 40369713A PL 403697 A1 PL403697 A1 PL 403697A1
- Authority
- PL
- Poland
- Prior art keywords
- chitosan
- solution
- less
- weight
- amount
- Prior art date
Links
- 229920001661 Chitosan Polymers 0.000 title abstract 10
- 238000000034 method Methods 0.000 title abstract 4
- 239000000203 mixture Substances 0.000 title abstract 3
- 239000000017 hydrogel Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000012528 membrane Substances 0.000 title abstract 2
- 239000000243 solution Substances 0.000 abstract 8
- 150000001875 compounds Chemical class 0.000 abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 3
- 238000004132 cross linking Methods 0.000 abstract 2
- 239000004014 plasticizer Substances 0.000 abstract 2
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 239000000443 aerosol Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 235000011089 carbon dioxide Nutrition 0.000 abstract 1
- 230000001143 conditioned effect Effects 0.000 abstract 1
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 230000006196 deacetylation Effects 0.000 abstract 1
- 238000003381 deacetylation reaction Methods 0.000 abstract 1
- 229910052809 inorganic oxide Inorganic materials 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
Landscapes
- Medicinal Preparation (AREA)
- Cosmetics (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Colloid Chemistry (AREA)
Abstract
Przedmiotem wynalazku jest sposób przygotowania roztworu chitozanu o masie cząsteczkowej nie mniejszej niż 10 kDa oraz o stopniu deacetylacji nie mniejszej niż 20%, charakteryzujący się tym, że przygotowuje się roztwór chitozanu mikrokrystalicznego a następnie uzupełnia wodą w ilości, w której stężenie chitozanu względem jego suchej masy w wodnym roztworze wynosi nie mniej niż 0,001% wagowego. Tak otrzymany roztwór miesza się w temperaturze nie niższej niż 0°C, korzystnie w warunkach ciśnienia atmosferycznego. W trakcie mieszania roztwór nasyca się kwasowymi tlenkami nieorganicznymi, korzystnie ditlenkiem węgla w postaci gazowej i/lub suchego lodu do momentu uzyskania klarowności roztworu oraz rozpuszczenia chitozanu. Przedmiotem wynalazku jest też kompozycja, charakteryzująca się tym, że otrzymana jest poprzez zmieszanie roztworu chitozanu w wodzie wytworzonego powyższym sposobem w ilości nie mniejszej niż 80% wagowych z co najmniej jednym związkiem z grupy związków biologicznie czynnych i/lub związków sieciujących i/lub plastyfikatorów, w ilości nie większej niż 20% wagowych. Kompozycja korzystnie ma postać aerozolu. Wynalazek obejmuje również sposób wytwarzania hydrożelowej membrany chitozanowej, charakteryzujący się tym, że roztwór chitozanu w wodzie, otrzymany sposobem jak wyżej wylewa się do formy, a następnie kondycjonuje się w temperaturze nie niższej niż 1°C, w warunkach ciśnienia korzystnie atmosferycznego, w czasie nie krótszym niż 12 h. Przed wylaniem do formy i kondycjonowaniem do roztworu chitozanu w wodzie dodaje się co najmniej jeden związek z grupy związków biologicznie czynnych i/lub związków sieciujących i/lub plastyfikatorów, w ilości nie większej niż 20% wagowych i miesza się do czasu uzyskania homogenności.The subject of the invention is a method of preparing a chitosan solution with a molecular weight of not less than 10 kDa and a degree of deacetylation of not less than 20%, characterized in that a solution of microcrystalline chitosan is prepared and then supplemented with water in an amount in which the concentration of chitosan relative to its dry mass in an aqueous solution is not less than 0.001% by weight. The solution thus obtained is stirred at a temperature not lower than 0°C, preferably under atmospheric pressure. During stirring, the solution is saturated with acidic inorganic oxides, preferably carbon dioxide in gaseous form and/or dry ice until the solution is clear and the chitosan is dissolved. The subject of the invention is also a composition, characterized in that it is obtained by mixing a solution of chitosan in water obtained by the above method in an amount of not less than 80% by weight with at least one compound from the group of biologically active compounds and/or cross-linking compounds and/or plasticizers, in an amount of not more than 20% by weight. The composition is preferably in the form of an aerosol. The invention also includes a method for producing a hydrogel chitosan membrane, characterized in that the solution of chitosan in water, obtained by the method as above, is poured into a mold and then conditioned at a temperature of not less than 1°C, under conditions of pressure, preferably atmospheric, for not less than 12 h. Before pouring into the mold and conditioning, at least one compound from the group of biologically active compounds and/or cross-linking compounds and/or plasticizers, in an amount of not more than 20% by weight, is added to the solution of chitosan in water and mixed until homogeneity is achieved.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL403697A PL222739B1 (en) | 2013-04-26 | 2013-04-26 | Method for preparation of the chitosan solution, the composition and method for preparing hydrogel chitosan membrane |
| EP13820587.7A EP2920240B1 (en) | 2012-07-20 | 2013-06-26 | The method of obtaining the aqueous solution of chitosan, chitosan composition, chitosan aerosol, the method of producing the chitosan hydrogel membrane and the method of producing chitosan-protein biopolymer material |
| LTEPPCT/PL2013/000085T LT2920240T (en) | 2012-07-20 | 2013-06-26 | The method of obtaining the aqueous solution of chitosan, chitosan composition, chitosan aerosol, the method of producing the chitosan hydrogel membrane and the method of producing chitosan-protein biopolymer material |
| PT138205877T PT2920240T (en) | 2012-07-20 | 2013-06-26 | The method of obtaining the aqueous solution of chitosan, chitosan composition, chitosan aerosol, the method of producing the chitosan hydrogel membrane and the method of producing chitosan-protein biopolymer material |
| PCT/PL2013/000085 WO2014014370A2 (en) | 2012-07-20 | 2013-06-26 | The method of obtaining the aqueous solution of chitosan, chitosan composition, chitosan aerosol, the method of producing the chitosan hydrogel membrane and the method of producing chitosan-protein biopolymer material |
| ES13820587T ES2913107T3 (en) | 2012-07-20 | 2013-06-26 | Method for obtaining chitosan aqueous solution, chitosan composition, chitosan aerosol, method for producing chitosan hydrogel membrane, and method for producing chitosan-protein biopolymer material |
| HRP20220638TT HRP20220638T1 (en) | 2012-07-20 | 2013-06-26 | The method of obtaining the aqueous solution of chitosan, chitosan composition, chitosan aerosol, the method of producing the chitosan hydrogel membrane and the method of producing chitosan-protein biopolymer material |
| DK13820587.7T DK2920240T3 (en) | 2012-07-20 | 2013-06-26 | PROCEDURE FOR THE PREPARATION OF AN Aqueous solution of CHITOSAN, CHITOSAN COMPOSITION, CHITOSANAEROSOL, PROCEDURE FOR MAKING A CHITOSANHYDROGEL MEMBRANE AND PREPARATION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL403697A PL222739B1 (en) | 2013-04-26 | 2013-04-26 | Method for preparation of the chitosan solution, the composition and method for preparing hydrogel chitosan membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL403697A1 true PL403697A1 (en) | 2014-10-27 |
| PL222739B1 PL222739B1 (en) | 2016-08-31 |
Family
ID=51754056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL403697A PL222739B1 (en) | 2012-07-20 | 2013-04-26 | Method for preparation of the chitosan solution, the composition and method for preparing hydrogel chitosan membrane |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL222739B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3095353B1 (en) * | 2019-04-24 | 2023-04-14 | Inst Mines Telecom | Process for manufacturing an adsorbent membrane with high percolation power |
| EP4285737A1 (en) | 2022-06-05 | 2023-12-06 | Chitone sp. z o.o. | Chitosan composition using as a stabilising and preserving agent for food products, method for obtaining the composition, use of the composition asa preserving and stabilising agent for the protection of food products |
-
2013
- 2013-04-26 PL PL403697A patent/PL222739B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL222739B1 (en) | 2016-08-31 |
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