PL414365A1 - Method for manufacturing biodegradable films and shapes from the starch-protein raw material - Google Patents
Method for manufacturing biodegradable films and shapes from the starch-protein raw materialInfo
- Publication number
- PL414365A1 PL414365A1 PL414365A PL41436515A PL414365A1 PL 414365 A1 PL414365 A1 PL 414365A1 PL 414365 A PL414365 A PL 414365A PL 41436515 A PL41436515 A PL 41436515A PL 414365 A1 PL414365 A1 PL 414365A1
- Authority
- PL
- Poland
- Prior art keywords
- starch
- shapes
- temperature
- raw material
- protein raw
- Prior art date
Links
Landscapes
- Biological Depolymerization Polymers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Sposób wytwarzania biodegradowalnej folii i kształtek z surowca skrobiowo-białkowego polega na tym, że do mąki pszennej dodaje się 8 - 12% wagowych wody i ogrzewa się w temperaturze 80 - 150°C w czasie 40 - 70 sekund pod ciśnieniem 80 - 130 barów. Hydrotermicznie przetworzoną mąkę o zawartości 54 - 64% skrobi, 13 - 15% białka, 17 - 23% błonnika, 0,5 - 1,5% tłuszczu i cukrów redukujących, 0,5 - 1,0% popiołu i ok. 6% wilgoci poddaje się utlenianiu nadtlenkiem wodoru w obecności jonów miedzi Cu2+ jako katalizatora lub estryfikacji bezwodnikiem kwasu octowego w obecności aktywatora, a następnie plastyfikacji w temperaturze 70 - 80°C mieszając z plastyfikatorem, jak gliceryna, monostearynian gliceryny czy poliglikol etylenowy, w ilości 15 - 50%. Powstałą mieszaninę kondycjonuje się bez dostępu powietrza w czasie nie krótszym niż 24 godziny i poddaje się ekstruzji z równoczesnym odgazowaniem w temperaturze 90 - 180°C, a następnie uplastycznioną mieszaninę granuluje się, a otrzymany granulat przetwarza się znanymi sposobami na biodegadowalne folie czy kształtki.The method of producing biodegradable film and shapes from starch-protein raw material is that 8-12% by weight of water is added to wheat flour and heated at a temperature of 80-150 ° C for 40-70 seconds at a pressure of 80-130 bar. Hydrothermically processed flour containing 54 - 64% starch, 13 - 15% protein, 17 - 23% fiber, 0.5 - 1.5% fat and reducing sugars, 0.5 - 1.0% ash and approx. 6% moisture is subjected to oxidation with hydrogen peroxide in the presence of copper ions Cu2 + as a catalyst or esterification with acetic anhydride in the presence of an activator, followed by plasticization at a temperature of 70 - 80 ° C by mixing with a plasticizer, such as glycerin, glycerol monostearate or polyethylene glycol in the amount of 15 - 50 %. The resulting mixture is conditioned in the absence of air for no less than 24 hours and subjected to extrusion with simultaneous degassing at a temperature of 90 - 180 ° C, and then the plasticized mixture is granulated, and the obtained granulate is processed by known methods into biodegradable films or shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL414365A PL229283B1 (en) | 2015-10-14 | 2015-10-14 | Method for manufacturing biodegradable films and shapes from the starch-protein raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL414365A PL229283B1 (en) | 2015-10-14 | 2015-10-14 | Method for manufacturing biodegradable films and shapes from the starch-protein raw material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL414365A1 true PL414365A1 (en) | 2017-04-24 |
| PL229283B1 PL229283B1 (en) | 2018-07-31 |
Family
ID=58672030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL414365A PL229283B1 (en) | 2015-10-14 | 2015-10-14 | Method for manufacturing biodegradable films and shapes from the starch-protein raw material |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL229283B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL442782A1 (en) * | 2022-11-11 | 2024-05-13 | Lab Bio Spółka Z Ograniczoną Odpowiedzialnością | Biodegradable thermoplastic polymer composition and methods of obtaining it |
-
2015
- 2015-10-14 PL PL414365A patent/PL229283B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL229283B1 (en) | 2018-07-31 |
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