WO2009155895A1 - Verfahren zur verbesserung der physikalisch-chemischen eigenschaften bioabbaubarer werkstoffe - Google Patents
Verfahren zur verbesserung der physikalisch-chemischen eigenschaften bioabbaubarer werkstoffe Download PDFInfo
- Publication number
- WO2009155895A1 WO2009155895A1 PCT/DE2009/000790 DE2009000790W WO2009155895A1 WO 2009155895 A1 WO2009155895 A1 WO 2009155895A1 DE 2009000790 W DE2009000790 W DE 2009000790W WO 2009155895 A1 WO2009155895 A1 WO 2009155895A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- enzyme
- substances
- biodegradable materials
- improving
- chemical properties
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/16—Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L89/00—Compositions of proteins; Compositions of derivatives thereof
- C08L89/005—Casein
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L89/00—Compositions of proteins; Compositions of derivatives thereof
- C08L89/04—Products derived from waste materials, e.g. horn, hoof or hair
Definitions
- Biodegradable materials such as foils, composites and coatings are used in a variety of ways
- Agriculture greenhouse films, mulch films, crop early release films, tunnel covers and photoselective films, e.g., for blocking ultraviolet radiation
- the biodegradable materials include primarily proteins (eg caseins, gelatin, collagen, wheat gluten, corn, soy, silk and wool), polysaccharides (eg starch, cellulose, lignin and chitin), lipids (eg vegetable oils including castor oil and animal fats, by Polyorganisms or plants produced polyesters (eg polyhydroxyalkanoate), synthesized polyesters of monomers of biological origin (eg polylactic acid) and other selected polymers (eg rubber and composites).
- proteins eg caseins, gelatin, collagen, wheat gluten, corn, soy, silk and wool
- polysaccharides eg starch, cellulose, lignin and chitin
- lipids eg vegetable oils including castor oil and animal fats, by Polyorganisms or plants produced polyesters (eg polyhydroxyalkanoate), synthesized polyesters of monomers of biological origin (eg polylactic acid) and other selected polymers (eg rubber and composites).
- Biodegradable materials in particular based on proteins or polysaccharides, have significantly reduced mechanical properties in comparison with the substances produced from conventional polymers.
- protein-based materials have high water sensitivity which results in comparatively rapid dissolution of these materials upon contact with liquids. Comparatively high costs for biological raw materials and their processing have so far led to inadequate establishment of biodegradable products on the market.
- the influenceable mechanical properties include in particular tensile strength, elongation at break and modulus of elasticity.
- fertilizers can be incorporated into biodegradable films, which are released in a field decomposition on the field and make a conventional fertilization superfluous.
- hydrophobic substances to change the barrier properties have only a minor effect on the mechanical properties and are therefore not sufficient alone to improve the biodegradable materials desirable.
- a Ultrasonic treatment can be realized on a large scale only with great effort and requires a sufficiently viscous solution.
- a particular advantage is that no additional investment in equipment and processes is required and on the other hand, that the cost of crystallizing substances are relatively low.
- the erfmdungshacke method is characterized by a simple integration into existing plants and processes, the variety of possible substances, low investment and operating costs, many variable parameters for targeted control of product properties and multiple marketing options of the final product.
- Biodegradable materials are produced by producing protein films and composites.
- the individual process steps are shown as a process diagram in Fig. 1.
- a Solution of distilled water or TRIS buffer pH 6 - 8, glycerol or PEG as plasticizer and sodium caseinate or gelatin as model proteins is homogenized by means of a stirred vessel in a temperature range between 30 and 100 ° C.
- the addition of the additives to be crystallized, optionally potassium nitrate, urea or citric acid in concentrations between 0.5 and 10 wt.% Is carried out.
- the preparation is carried out in each case with and without enzymatic crosslinking of proteins with the aid of the enzyme microbial transglutaminase (MTG).
- MMG microbial transglutaminase
- the enzyme-free production variant of films and composites allows a further processing of the protein solution in a much wider temperature range between 30 and 100 0 C.
- the process step 3a the cooling of the solution to 45 - 55 0 C.
- process step 3a the setting of the temperature to 45 - 55 0 C by means of a thermostat or alternatively by a hot plate or a water bath. After tempering, the pH of the protein solution is adjusted to values between pH 6-8. The enzyme MTG is then added in solid or predissolved form in the protein solution and homogenized by stirring or shaking with the protein solution.
- the further process steps are identical for the production of films and composites both with and without MTG catalyzed enzymatic crosslinking of the material.
- the degassing is done using a centrifuge or alternatively by applying a vacuum or in the form of an ultrasonic treatment to avoid air bubbles in the final product.
- the solution is poured or sprayed into a PTFE frame or PTFE film and dried for 12-48 hours at room temperature. After this time, the film is removed, which is then incubated with a desiccator at 50% rLF and at room temperature for 24-48 hours.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Biological Depolymerization Polymers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112009001865T DE112009001865A5 (de) | 2008-06-06 | 2009-06-05 | Verfahren zur Verbesserung der physikalisch-chemischen Eigenschaften bioabbaubarer Werkstoffe |
EP09768819A EP2361276A1 (de) | 2008-06-06 | 2009-06-05 | Verfahren zur verbesserung der physikalisch-chemischen eigenschaften bioabbaubarer werkstoffe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810027261 DE102008027261A1 (de) | 2008-06-06 | 2008-06-06 | Verfahren zur Verbesserung der physikalisch-chemischen Eigenschaften bioabbaubarer Werkstoffe |
DE102008027261.2 | 2008-06-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009155895A1 true WO2009155895A1 (de) | 2009-12-30 |
Family
ID=41255783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2009/000790 WO2009155895A1 (de) | 2008-06-06 | 2009-06-05 | Verfahren zur verbesserung der physikalisch-chemischen eigenschaften bioabbaubarer werkstoffe |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2361276A1 (de) |
DE (2) | DE102008027261A1 (de) |
WO (1) | WO2009155895A1 (de) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5462982A (en) * | 1989-05-30 | 1995-10-31 | Novamont S.P.A. | Method for the preparation of destructured-starch-based compositions and compositions produced thereby |
US5516815A (en) * | 1991-11-07 | 1996-05-14 | Ems-Inventa Ag | Starch-Containing fibers, process for their production and products made therefrom |
EP0882765A2 (de) * | 1993-01-15 | 1998-12-09 | McNEIL-PPC, INC. | Schmelzverarbeitbare bioabbaubare Zusammensetzungen und daraus hergestellte Artikel |
US5922379A (en) * | 1998-05-05 | 1999-07-13 | Natural Polymer International Corporation | Biodegradable protein/starch-based thermoplastic composition |
EP1035163A2 (de) * | 1999-03-08 | 2000-09-13 | HUMATRO CORPORATION, c/o Ladas & Parry | In der Schmelze vearbeitbare Stärkezusammensetzungen |
WO2002083784A1 (en) * | 2001-04-18 | 2002-10-24 | Food & Packaging Centre Management Limited | Biodegradable polymer |
WO2003022887A1 (de) * | 2001-09-04 | 2003-03-20 | Heppe Gmbh | Werkstoffe aus modifizierten polysacchariden und verfahren zu ihrer herstellung |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI0208325B1 (pt) * | 2001-03-30 | 2015-07-28 | Ajinomoto Kk | Preparação enzimática para aglutinação de materiais alimentícios sólidos, método para produzir um alimento aglutinado a partir de materiais alimentícios sólidos, e, alimento aglutinado |
US7229971B2 (en) * | 2002-03-11 | 2007-06-12 | Japan Science And Technology Agency | Regulation of biodegradability of composite biomaterials |
EP1645907A1 (de) * | 2004-10-07 | 2006-04-12 | N-Zyme BioTec GmbH | Proteinbeschichtete Träger und deren Herstellung |
-
2008
- 2008-06-06 DE DE200810027261 patent/DE102008027261A1/de not_active Ceased
-
2009
- 2009-06-05 EP EP09768819A patent/EP2361276A1/de not_active Withdrawn
- 2009-06-05 WO PCT/DE2009/000790 patent/WO2009155895A1/de active Application Filing
- 2009-06-05 DE DE112009001865T patent/DE112009001865A5/de not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5462982A (en) * | 1989-05-30 | 1995-10-31 | Novamont S.P.A. | Method for the preparation of destructured-starch-based compositions and compositions produced thereby |
US5516815A (en) * | 1991-11-07 | 1996-05-14 | Ems-Inventa Ag | Starch-Containing fibers, process for their production and products made therefrom |
EP0882765A2 (de) * | 1993-01-15 | 1998-12-09 | McNEIL-PPC, INC. | Schmelzverarbeitbare bioabbaubare Zusammensetzungen und daraus hergestellte Artikel |
US5922379A (en) * | 1998-05-05 | 1999-07-13 | Natural Polymer International Corporation | Biodegradable protein/starch-based thermoplastic composition |
EP1035163A2 (de) * | 1999-03-08 | 2000-09-13 | HUMATRO CORPORATION, c/o Ladas & Parry | In der Schmelze vearbeitbare Stärkezusammensetzungen |
WO2002083784A1 (en) * | 2001-04-18 | 2002-10-24 | Food & Packaging Centre Management Limited | Biodegradable polymer |
WO2003022887A1 (de) * | 2001-09-04 | 2003-03-20 | Heppe Gmbh | Werkstoffe aus modifizierten polysacchariden und verfahren zu ihrer herstellung |
Also Published As
Publication number | Publication date |
---|---|
DE102008027261A1 (de) | 2009-12-10 |
DE112009001865A5 (de) | 2011-05-12 |
EP2361276A1 (de) | 2011-08-31 |
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