GB437683A - Improvement in pectin and its manufacture - Google Patents
Improvement in pectin and its manufactureInfo
- Publication number
- GB437683A GB437683A GB17005/34A GB1700534A GB437683A GB 437683 A GB437683 A GB 437683A GB 17005/34 A GB17005/34 A GB 17005/34A GB 1700534 A GB1700534 A GB 1700534A GB 437683 A GB437683 A GB 437683A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pectin
- film
- drum
- adherence
- dried
- 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
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0045—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Galacturonans, e.g. methyl ester of (alpha-1,4)-linked D-galacturonic acid units, i.e. pectin, or hydrolysis product of methyl ester of alpha-1,4-linked D-galacturonic acid units, i.e. pectinic acid; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L5/06—Pectin; Derivatives thereof
Abstract
Dried pectin is obtained by incorporating with liquid pectin obtained in any suitable manner an adherence retarding agent and then applying the mixture to a drying surface in the form of a relatively thin layer whereby a dry coherent film is formed which can readily be removed. Suitable substances which act as adherence retarding agents include certain polyhydric alcohols, such as glycerine, and some derivatives; oils such as olive oil, lemon oil or animal oils such as cod liver oil; refined mineral oil or petroleum; waxes, paraffins and sugars. The natural product from which the pectin is extracted may contain a sufficient amount of one or more of these bodies. Substances which are insoluble in or immiscible with the liquid pectin may be readily dispersed therein. The pectin may be dried on a heated drum, disc, travelling metallic belt or other suitable smooth surface. Preferably the liquid is applied to the surface of a drum and is fed into a trough extending across the face of the drum and formed by a portion of the cylindrical drying surface and a plate arranged at an angle. A short distance in advance of the pool in the trough an adjustable bar is mounted across the surface of the drum to free the film from air bubbles. The applied coating is preferably about 0,05 to 0,06 inches in thickness and is dried until the coherent film is about 10 per cent of the thickness of the applied coating. It is then removed, e.g. by a flexible blade of stainless steel maintaining contact across the entire face of the drum. For example, liquid pectin mixed with glycerine is dried in approximately 20 seconds at 214 DEG F. and in 7,5 seconds at 225 DEG F. The temperature and duration of heating should be arranged to avoid deterioration of the pectin. If desired, the adherence retarding agent together with other impurities may be removed by passing the pectin film through a solvent which will not affect the pectin itself, e.g. using glycerine, a solution of 95 per cent alcohol may be used for its removal. Any solvent retained in the film can be removed by careful drying, e.g. in an air drier. Furthermore, the film may be treated to control its hydrogen ion concentration by passage through a bath of weak alkali or acid. The alkali or acid may be incorporated in the solvent bath employed to remove the adherence retarding agent, or in a subsequent bath. For domestic jelly manufacture, the hydrogen ion concentration is adjusted to a pH of 3,55 to 2,0, and for commercial purposes, preferably above pH 3,55. Excessive ash content of the pectin, due to alkali and alkaline earth salts of the pectin acids, may be removed by treatment in an acid bath, and the hydrogen ion concentration is also increased.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US679853A US1973613A (en) | 1933-07-11 | 1933-07-11 | Pectin and its manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
GB437683A true GB437683A (en) | 1935-11-04 |
Family
ID=24728643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17005/34A Expired GB437683A (en) | 1933-07-11 | 1934-06-08 | Improvement in pectin and its manufacture |
Country Status (5)
Country | Link |
---|---|
US (1) | US1973613A (en) |
AT (1) | AT147987B (en) |
DE (1) | DE656622C (en) |
FR (1) | FR775177A (en) |
GB (1) | GB437683A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2754269A1 (en) * | 1996-10-04 | 1998-04-10 | Rhodia Chimie Sa | Drying of heat-sensitive substances, especially enzymes |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2542052A (en) * | 1947-06-10 | 1951-02-20 | Harry S Owens | Polyvalent metal pectinate films and process of producing same |
US2522534A (en) * | 1948-01-30 | 1950-09-19 | Harry S Owens | Isolation of pectinic acids |
US2863305A (en) * | 1953-08-10 | 1958-12-09 | John C Shepherd | Refrigerant article and composition |
DE1117368B (en) * | 1960-07-04 | 1961-11-16 | Herbstreith Pektinfab | Process for the production of dry pectin |
US3346407A (en) * | 1964-04-27 | 1967-10-10 | Aquatain Company Inc | Soil erosion and evaporation control |
DE2633659C3 (en) * | 1976-07-27 | 1980-05-29 | Eduard Gerlach Gmbh Chemische Fabrik, 4990 Luebbecke | Process for the production of a film web from beets of the species B vulgaris |
CN115381061B (en) * | 2022-07-04 | 2023-11-14 | 阳江喜之郎果冻制造有限公司 | Transmittance self-checking konjak jelly production device and production process |
-
1933
- 1933-07-11 US US679853A patent/US1973613A/en not_active Expired - Lifetime
-
1934
- 1934-06-08 GB GB17005/34A patent/GB437683A/en not_active Expired
- 1934-06-28 AT AT147987D patent/AT147987B/en active
- 1934-06-30 FR FR775177D patent/FR775177A/en not_active Expired
- 1934-07-01 DE DES114563D patent/DE656622C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2754269A1 (en) * | 1996-10-04 | 1998-04-10 | Rhodia Chimie Sa | Drying of heat-sensitive substances, especially enzymes |
Also Published As
Publication number | Publication date |
---|---|
FR775177A (en) | 1934-12-21 |
DE656622C (en) | 1938-02-12 |
US1973613A (en) | 1934-09-11 |
AT147987B (en) | 1936-12-10 |
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