GB492599A - Improvements in and relating to the isolation of zein - Google Patents
Improvements in and relating to the isolation of zeinInfo
- Publication number
- GB492599A GB492599A GB7958/37A GB795837A GB492599A GB 492599 A GB492599 A GB 492599A GB 7958/37 A GB7958/37 A GB 7958/37A GB 795837 A GB795837 A GB 795837A GB 492599 A GB492599 A GB 492599A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zein
- per cent
- water
- solvent
- extraction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0215—Solid material in other stationary receptacles
- B01D11/0253—Fluidised bed of solid materials
- B01D11/0257—Fluidised bed of solid materials using mixing mechanisms, e.g. stirrers, jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof
- B01D9/0054—Use of anti-solvent
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Peptides Or Proteins (AREA)
Abstract
Zein is extracted from proteinaceous material derived from maize by means of an aqueous alcoholic solvent at a temperature not above 70 DEG C. and a hydrogen ion concentration such that the pH of the final extract is not less than 6. The solvent may contain up to 20 per cent or more, preferably 7-8 per cent, of water and may be pure aqueous ethyl or methyl alcohol or mixtures with other organic solvents. Extraction is preferably effected at 55-65 DEG C., the final pH being 6 to 7. Gluten meal may be extracted with 93 per cent alcohol. The pH value, which is normally too low and, moreover, falls as the extraction proceeds, is regulated by the addition of alkali such as sodium hydroxide at the beginning or from time to time during the extraction. The extract may be concentrated by vacuum distillation, for example to 30 per cent zein content. It is treated with a solvent for oil and colouring matter such as toluol, benzol, xylol, carbon tetrachloride or, less desirably, aliphatic hydrocarbons such as petroleum ether, and the solvent layer separated. The zein solution is mixed with water to precipitate the zein which is mixed with water until it loses its adhesive nature, rolled into sheets, soaked in water and dried. The dried sheets can then be ground for use in making plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7958/37A GB492599A (en) | 1937-03-18 | 1937-03-18 | Improvements in and relating to the isolation of zein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7958/37A GB492599A (en) | 1937-03-18 | 1937-03-18 | Improvements in and relating to the isolation of zein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB492599A true GB492599A (en) | 1938-09-19 |
Family
ID=9843034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7958/37A Expired GB492599A (en) | 1937-03-18 | 1937-03-18 | Improvements in and relating to the isolation of zein |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB492599A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015014581A1 (en) | 2015-11-12 | 2017-05-18 | Nele Schmidt | Prolamine-containing gels, process for their preparation and their use |
| WO2021249621A1 (en) * | 2020-06-09 | 2021-12-16 | Traceless Materials Gmbh | Process for producing water-resistant films from corn gluten meal |
| LU500976B1 (en) | 2021-12-09 | 2023-06-09 | Traceless Mat Gmbh | Process for producing a thermoplastic material for use as a powder or granulate for further processing such as injection moulding or coating |
| LU500975B1 (en) | 2021-12-09 | 2023-06-09 | Traceless Mat Gmbh | Process for producing a thermoplastic material for use as a film or as a flexible coating |
-
1937
- 1937-03-18 GB GB7958/37A patent/GB492599A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015014581A1 (en) | 2015-11-12 | 2017-05-18 | Nele Schmidt | Prolamine-containing gels, process for their preparation and their use |
| WO2021249621A1 (en) * | 2020-06-09 | 2021-12-16 | Traceless Materials Gmbh | Process for producing water-resistant films from corn gluten meal |
| LU500976B1 (en) | 2021-12-09 | 2023-06-09 | Traceless Mat Gmbh | Process for producing a thermoplastic material for use as a powder or granulate for further processing such as injection moulding or coating |
| LU500975B1 (en) | 2021-12-09 | 2023-06-09 | Traceless Mat Gmbh | Process for producing a thermoplastic material for use as a film or as a flexible coating |
| EP4194484A1 (en) | 2021-12-09 | 2023-06-14 | Traceless Materials GmbH | A process for producing a thermoplastic material, a process of forming a granulate or extrudate, thermoplastic product and use of the thermoplastic material |
| EP4194485A1 (en) | 2021-12-09 | 2023-06-14 | Traceless Materials GmbH | Process for producing a thermoplastic material for use as a film or as a flexible coating |
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