CN1056512A - The purifying of gelatin-remove metal ion, decolour, enhance the transparency - Google Patents
The purifying of gelatin-remove metal ion, decolour, enhance the transparency Download PDFInfo
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- CN1056512A CN1056512A CN90102646A CN90102646A CN1056512A CN 1056512 A CN1056512 A CN 1056512A CN 90102646 A CN90102646 A CN 90102646A CN 90102646 A CN90102646 A CN 90102646A CN 1056512 A CN1056512 A CN 1056512A
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- gelatin
- transparency
- exchange resin
- metal ion
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Abstract
The invention belongs to the purifying of gelatin, use special ion exchange resin composite columns, once reach the metal ion of removing in the gelatin, the purpose of decolouring and enhancing the transparency, technology of the present invention, equipment are simple, the renewable repeated use of exchange resin, utilization ratio height.
Description
The technical field of the invention is the purifying of gelatin.
Gelatin is a kind of protein that the collagen partial hydrolysis of (bone or skin) is come out from animal connective tissue or face tissue.It has many good physics and chemical property; Strong as wetting ability, have and form the jelly ability, reversible conversion, the film forming properties of colloidal sol and gel are good, side-chain radical reactive behavior height, and the typical both sexes dielectric characteristic that changes with PH values of electric charge symbol etc.Just because of these advantages are arranged, gelatin is widely used in scientific research and each industrial technology field.In biotechnology, gelatin is the carrier as solid enzyme; In biological chemistry, gelatin is a kind of model protein of the proteinic primary structure of research; In field of medicaments, gelatin is used for the treatment of some disease in large quantities, is used for the production of suppository, sugar-coat, microcapsule and is used as plasma substitute etc.; In foodstuffs industry, gelatin is widely used as jelly, auxiliary agent such as emulsification, stable, bonding and clarification; In industry, be used for the flotation of mineral products, electrolysis auxiliary agent etc.; Aspect printing, gelatin is in order to make carbon tissue transfer printing, collotype, intaglio printing and printer roller cartridge unit etc.In photographic chemistry industry, gelatin especially occupies an important position.It is one of applied three bulk raw materials in the sensitive film industry.The quality of gelatin quality is great for the relationship between quality of sensitive film product.When physical ripening, gelatin is the protective colloid that prevents the silver halide flocculation; When chemical ripening, be a kind of sensitizing material, even if lazy glue also is like this; In when exposure, be the acceptor (preventing compound) of the halogen that generated after the silver halide microcrystal photodissociation; In the storage process after exposure, gelatin is the stablizer of latent image; In the manufacturing of Technicolor sheet, it is the desirable karyomit(e) that adsorbs matching stain quantitatively; Behind post bake, be that a kind of penetrating quality is good to working fluid, and don't water-soluble but can suppress the hydrophilic medium of development effect; To the finished product sheet, it is the transparent carrier of black and white or colored video ...This multi-functional excellent specific property of gelatin be some synthetic macromolecular compound can not compare.Along with the widespread use of gelatin in every field, more and more higher requirement has been proposed also for its quality.
Because gelatin is the product that extracts by in the bone of animal, the skin, so some inorganics, organism and pigment etc. are present in the gelatin with the form of impurity.The existence of these impurity has influenced the quality and the application thereof of gelatin.The quality of gelatin and its raw material and production technique have confidential relation.Wherein the content of inorganic trace metal, color and luster, transparency are one of its main quality index in the gelatin.Because the aggregate in the Chinese glue industry mainly is to come from the old assorted bone (weathering bone, soupbone etc.) that society collects, the gelatin that the virgin aggregates of utilizing the slaughterhouse directly to come with the gelatin of this aggregate preparation and other country prepares all has very big difference from the quality of its raw material sources, raw material self and the gelatin quality of preparation.
Ion-exchange resin technique be this century middle nineteen thirties grow up.China's ion exchange resin has all reached quite high level in kind, specification, product and quality.Ion exchange resin with functions such as exchange, selection, absorption and catalysis reach desalination, separate, make with extra care, practical application effect such as decolouring, catalyzed reaction.It has become one of indispensable important materials in many fields.
Decolouring for gelatin solution, enhance the transparency, remove metal ion etc., according to reported in literature [1-14]: chemical precipitation method is enhanced the transparency as with aluminium salt, phosphoric acid salt, carbonate, salicylate etc. or adopt natural inorganic material adsorption filtration such as method decolourings such as zeolite, atlapulgite, diatomite etc. and oxidative bleaching method decolouring.Adopt method demineralizations such as anion-cation exchange resin technology or chemical precipitation method.The main at present diatomite filtration that adopts, oxidation bleaching reaches decolouring, enhances the transparency.Remove inorganic metal impurity with anion-cation exchange resin.So all need two procedures to finish.
Purpose of the present invention is used the combination ion exchange resin technology, use the resin that some has specific function, gelatin solution with concentration≤10%, at 30-70 ℃, optimum temps is 40-55 ℃, pH4-9, optimum range is pH5-7, by above-mentioned ion-exchange composite columns, remove metal ion, pigment and other organic impurities in the glue, thereby reach the passivation of once finishing into gelatin.
The combination ion exchange resin that the present invention uses is to have the macroreticular ion exchange resin of R functional group with vinylbenzene, divinylbenzene as skeleton, and wherein R is N(CH
2COOH)
2Or NH(C
2H
4NH)
nExtraordinary yin and yang resin (weakly alkaline, strongly-acid, slightly acidic, strong basicity) of H and macroporous type or gel-type anionite-exchange resin (OH
-Type), Zeo-karb (H
+Type) Combined Processing gelatin solution.Gelatin solution reaches decolouring, transparency height after by plastic resin treatment, remove three-in-one effects such as inorganic metal ion.By the gelatin solution after present method processing, with the content of its metallic impurity of atomic absorption spectrometry, with 72 its percent of decolourizations of type spectrophotometric determination, transparency.
Compared with prior art, the present invention has the following advantages:
1. use combination ion exchange resin of the present invention and handle gelatin dilute solution (≤10%), can once finish and remove metal ion, decolour and enhance the transparency.
2. use present method purifying gelatin dilute solution, the gelatin performance is not had detrimentally affect, can not bring other impurity and bacterium into.
3. use present method purifying gelatin, processing unit is simple, the renewable repeated use of resin, utilization ratio height.
Example: contain Ca 5600ppm in the every gram of 636-2# gelatin, Fe 64ppm, Cu 12 ppm; The optical parametric of its gelatin solution of 10% is: pH=5.75 ± 0.05,40 ℃ of temperature, wavelength are that it is 28 that 420nm surveys its color and luster transmitance T%; It is 76 that 650nm measures its transparency T%.636-2# glue is mixed with 10% gelatin solution, and under 45～55 ℃ temperature, by having-composite columns of R group regulating YIN and YANG ion exchange resin, effluent liquid is a pH value 5-7(pH test paper), can reach decolouring, transparency is high and remove metal ion.It the results are shown in Table 1,2.After gelatin solution about 10% is handled by combination ion exchange resin, its Ca content＜50ppm, Fe＜15ppm, Cu＜2ppm; The pH value is 5.75 ± 0.05 o'clock, 420nm T%＞55,650nm T%＞90.Apparent lighter color, the transparency height.
Change of metal ions before and after table 1 636-2# glue is handled
Color and luster, transparency change before and after table 2 636-2# glue is handled
Reference:
1.U.S patent no.3，555，445
＊ 2.Germer Patent No.964.200（1957）
＊ 3.Hinterwldner，R（1968）Adhasion p.444
4.U、S、P 2，400，375 Eastman Kodak comp.
5.U、S、P 2，166，297（1959）
6.USSR 583，152（1976）
7.Brit，528，850（1940）
＊ 8.Ger，741，401（1943）
＊ 9.Fr，889，036（1943）
10.Janus.J.W，Kenchington A.W.，Ward A.G.，（1951）
Research 4.p247.
11.U.S.P 2，166，297（1959）
12.U.S.P 3，153，030（1965）
＊ 13.Magy.Kem.Lapia 20（2），83-7（1965）（Hung）
CA62：16525g（1965）
＊ 14.Jp60 31，829（85，31，829）
CA103：21483V（1985）
The band * document of attaching most importance to
Claims (4)
1, a kind of purification process of gelatin, it is characterized in that gelatin glue to be purified (its concentration≤10%) at temperature 30-70 ℃, pH4-9, exchange column by the combination ion exchange resin composition, once finish the removal metal ion, decolour and enhance the transparency, this exchange column mainly contains vinylbenzene, divinylbenzene is the macroreticular ion exchange resin that skeleton has the R functional group, and wherein R is N (CH
2COOH)
2Or NH (C
2H
4NH)
nH.
2,, it is characterized in that optimum temps is 40-55 ℃ according to the said method of claim 1.
3,, it is characterized in that best PH scope is pH5-7 according to the said method of claim 1.
4,, it is characterized in that compound exchange column also contains extraordinary yin and yang resin (weakly alkaline, strongly-acid, slightly acidic, strong basicity) of macroporous type or gel-type anionite-exchange resin (OH according to the said method of claim 1
-Type), Zeo-karb (H
+Type).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90102646A CN1021831C (en) | 1990-05-16 | 1990-05-16 | Purification (removal of metallic ion), decolourization and enhancement in transparency for gelatin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90102646A CN1021831C (en) | 1990-05-16 | 1990-05-16 | Purification (removal of metallic ion), decolourization and enhancement in transparency for gelatin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1056512A true CN1056512A (en) | 1991-11-27 |
| CN1021831C CN1021831C (en) | 1993-08-18 |
Family
ID=4877618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90102646A Expired - Fee Related CN1021831C (en) | 1990-05-16 | 1990-05-16 | Purification (removal of metallic ion), decolourization and enhancement in transparency for gelatin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1021831C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059021A (en) * | 2010-11-03 | 2011-05-18 | 蚌埠丰原明胶有限公司 | Method for improving glutin transparency |
| CN102702983A (en) * | 2012-05-30 | 2012-10-03 | 郑长基 | Method for restoring netted glue into gelatin by using leftovers in production of soft capsules |
| CN104130718A (en) * | 2014-07-30 | 2014-11-05 | 安徽黄山胶囊股份有限公司 | Recovery usage method for waste gelatin solutions, waste gelatin heads and enteric gelatin heads |
| CN104530470A (en) * | 2014-01-30 | 2015-04-22 | 方琴 | Decoloring method of dye gelatin hard capsule shell waste |
| CN104946138A (en) * | 2014-03-27 | 2015-09-30 | 苏州吉利鼎海洋生物科技有限公司 | Method for removing heavy metal ions by using gelatin |
| CN107581461A (en) * | 2017-09-15 | 2018-01-16 | 渤海大学 | A kind of preparation method of high whiteness Peru squid skin gelatin |
-
1990
- 1990-05-16 CN CN90102646A patent/CN1021831C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059021A (en) * | 2010-11-03 | 2011-05-18 | 蚌埠丰原明胶有限公司 | Method for improving glutin transparency |
| CN102059021B (en) * | 2010-11-03 | 2012-12-05 | 安徽丰原集团有限公司 | Method for improving glutin transparency |
| CN102702983A (en) * | 2012-05-30 | 2012-10-03 | 郑长基 | Method for restoring netted glue into gelatin by using leftovers in production of soft capsules |
| CN104530470A (en) * | 2014-01-30 | 2015-04-22 | 方琴 | Decoloring method of dye gelatin hard capsule shell waste |
| CN104530470B (en) * | 2014-01-30 | 2018-03-27 | 方琴 | A kind of discoloration method of dye gelatin hard capsule case waste material |
| CN104946138A (en) * | 2014-03-27 | 2015-09-30 | 苏州吉利鼎海洋生物科技有限公司 | Method for removing heavy metal ions by using gelatin |
| CN104130718A (en) * | 2014-07-30 | 2014-11-05 | 安徽黄山胶囊股份有限公司 | Recovery usage method for waste gelatin solutions, waste gelatin heads and enteric gelatin heads |
| CN107581461A (en) * | 2017-09-15 | 2018-01-16 | 渤海大学 | A kind of preparation method of high whiteness Peru squid skin gelatin |
| CN107581461B (en) * | 2017-09-15 | 2020-11-10 | 渤海大学 | Preparation method of high-whiteness Peru squid skin gelatin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1021831C (en) | 1993-08-18 |
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