CN1046758A - Extract the processing method of xanthan gum - Google Patents
Extract the processing method of xanthan gum Download PDFInfo
- Publication number
- CN1046758A CN1046758A CN 89102916 CN89102916A CN1046758A CN 1046758 A CN1046758 A CN 1046758A CN 89102916 CN89102916 CN 89102916 CN 89102916 A CN89102916 A CN 89102916A CN 1046758 A CN1046758 A CN 1046758A
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- CN
- China
- Prior art keywords
- xanthan gum
- hou
- complexing
- filter cake
- elution
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention is the back extraction process of xanthan gum fermentation broth.The present invention with a certain amount of general formula is
Description
The invention belongs to xanthan gum fermentation broth Hou extraction process.
The essential step of producing xanthan gum is that the Hou of xanthan gum fermentation broth is extracted.The method that Hou is extracted is a lot, and one of them is quaternary amine-methyl alcohol method.This method is that 2.4% quaternary amine is added in the xanthan gum fermentation broth, makes it to form a kind of fibrous material of suspension, filters the Hou filter cake with the methyl alcohol that contains 0.2%KCl elution 20 minutes under violent stirring, right Hou vacuum filtration.Three Hou filter cakes of elution obtain product through drying so repeatedly.This method shortcoming is that cost of material is more expensive, and the product tape low toxicity.
The present invention is intended to overcome above-mentioned shortcoming, proposes a kind of complexing-elution method, extracts xanthan gum from xanthan gum fermentation broth.The present invention adds a certain amount of complexing agent in the xanthan gum fermentation broth at a certain temperature, and constant temperature stirs certain hour, and right Hou is filtered, and filter cake scrub solution elution transfers PH to required value, and more after filtration, the filter cake drying obtains product.
The selection of complexing agent is crucial, require it only with the xanthan gum complexing not with other impurity complexing, complexing Hou forms a kind of water insoluble or complex compound that solubleness is very low, can be easy to again simultaneously by elution complex compound " decomplexing ", " release " goes out xanthan gum and keeps primary characteristic.The present invention recommends to use a kind of general formula to be
The mixing amine salt of NHHW or the salt with single pure amine of this formula are complexing agent, wherein R
1Can be H or C
2-C
20Alkyl, as ethyl ' ' ' ' ' ' C
8' ' ' ' ' ' C
16' ' ' ' ' ' C
20In alkyl, R
2Can be C
2-C
20Alkyl, as ethyl ' ' ' ' ' ' C
8' ' ' ' ' ' C
16' ' ' ' ' ' C
20In alkyl, HW is a haloid acid, as HCL, and HBr.Like this primary, secondary amine salt can make the very fast generation complex reaction of xanthan gum, generates water insoluble or is slightly soluble in the complex compound of water, the viscosity that can reduce xanthan gum simultaneously again makes it to be easy to filter.The such brothers amine salt and the complexing of xanthan gum are equivalent chemical combination, and its controlled step is a diffusion process, therefore should keep good stirring when carrying out complex reaction, suitably heat simultaneously also to help diffusion.It is considered herein that the complexing temperature is controlled at normal temperature to 80 ℃ scope, the complexing time is controlled in 10-60 minute and gets final product.Through complex reaction Hou, xanthan gum and the primary, the complex compound that secondary amine generates is separated out with precipitation forms, and other impurity still is retained in the fermented liquid.After filtration, the xanthan gum complex compound separates with impurity, can carry out elution.
Elution is the inverse process of complex reaction, and purpose is with the xanthan gum recovery and keeps original performance.To the requirement of scrub solution is can be rapidly with complex compound " decomplexing ", and complexing agent dissolves in the scrub solution, and xanthan gum is insoluble or be slightly soluble in scrub solution, is convenient to following separation like this.The present invention advises using low-carbon alcohol or ketone to be scrub solution, as methyl alcohol, and ethanol, Virahol, acetone etc.The consumption of scrub solution is generally 6-40 times of xanthan gum.Will constantly stir during elution, the time was controlled at 30-200 minute, and pH value is generally wanted more than 7, but can not surpass 13.Under condition of the present invention, elution Hou, xanthan gum is restored, and after filtration with scrub solution, complexing agent separates, and elution is filtered the Hou xanthan gum and was descended dry 2-6 hour for 60 ± 5 ℃ in vacuum, can obtain product.
Fully implement the present invention, can overcome the shortcoming of existing method, obtain the xanthan gum of good quality.
Example 1
Take by weighing a kind of yellow unit cell polysaccharide liquid that produces through the fermentation of broccoli Black Rotten Xanthomonas campestris by W-Gum and be called xanthan gum fermentation broth 30 grams again, add H
2The O60 milliliter stirs the hydrobromic amine salt of the 0.7 gram pentadecyl methyl of adding down, adds Hou and stirs 30 minutes, filter, filter cake transfers PH to 7 Hou to filter with 15 milliliters of Virahol elutions, filter cake descended dry 3 hours in 65 ℃ in vacuum, obtained little gray fibre solid 1.1 grams of leukorrhea.
Example 2
With the program of example 1, replace Virahol to get product 1.15 grams with ethanol, be little linen fibre solid.
Example 3
With the program of example 1, replace Virahol to get product 1.15 grams with methyl alcohol.
Example 4
By the program of example 1, get xanthan gum fermentation broth 50 grams, use C
6-C
18The hydrobromate of mixed amine replace the hydrobromic amine salt of pentadecyl methyl, add 1.1 grams, stirs Hou filtration in 40 minutes, filter cake was with 30 milliliters of industrial alcohol elutions 69 minutes, accent pH value to 7 is above to be filtered, and filter cake gets faint yellow fibre solid 1.8 grams in vacuum 60 degree oven dry 6 hours.
Example 5
With example 4 programs, use C
6-C
18The hydrochloride of mixed amine replace hydrobromate, faint yellow fiber product 1.7 grams.
Claims (3)
1, a kind of processing method of xanthan gum Hou extraction is to add complexing agent and xanthan gum complexing in xanthan gum fermentation broth, and complexing Hou is filtered, filter cake scrub solution elution, and right Hou refilters, and drying is characterized in that using general formula to be
The mixing amine salt of NHHW or pure amine salt are complexing agent, under normal temperature to 80 ℃ stirring, carried out complexing 10-60 minute, 6-40 times low-carbon alcohol of filtration Hou usefulness xanthan gum or ketone under agitation elution 30-200 minute, the control pH value filters the Hou filter cake at 60 ± 5 ℃ of following drying 2-6 of vacuum hours in the 7-13 scope.
2, in accordance with the method for claim 1 a kind of, it is characterized in that R
1Can be H or C
2-C
20Alkyl, R
2Be C
2-C
20Alkyl, HW is a hydrochloric acid, Hydrogen bromide.
3, in accordance with the method for claim 1 a kind of, it is characterized in that said low-carbon alcohol or ketone are methyl alcohol, ethanol, Virahol, acetone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89102916 CN1046758A (en) | 1989-04-29 | 1989-04-29 | Extract the processing method of xanthan gum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89102916 CN1046758A (en) | 1989-04-29 | 1989-04-29 | Extract the processing method of xanthan gum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1046758A true CN1046758A (en) | 1990-11-07 |
Family
ID=4854911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89102916 Pending CN1046758A (en) | 1989-04-29 | 1989-04-29 | Extract the processing method of xanthan gum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1046758A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338222C (en) * | 2002-05-21 | 2007-09-19 | A·E·斯特利制造公司 | Polysaccharide gum and process for its manufacture |
| CN109796540A (en) * | 2019-02-26 | 2019-05-24 | 湖北葛店人福药用辅料有限责任公司 | A kind of refining methd of pharmaceutical grade xanthan gum |
-
1989
- 1989-04-29 CN CN 89102916 patent/CN1046758A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338222C (en) * | 2002-05-21 | 2007-09-19 | A·E·斯特利制造公司 | Polysaccharide gum and process for its manufacture |
| CN109796540A (en) * | 2019-02-26 | 2019-05-24 | 湖北葛店人福药用辅料有限责任公司 | A kind of refining methd of pharmaceutical grade xanthan gum |
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