CN1450088A - Novel method for producing carragheen - Google Patents
Novel method for producing carragheen Download PDFInfo
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- CN1450088A CN1450088A CN 03114130 CN03114130A CN1450088A CN 1450088 A CN1450088 A CN 1450088A CN 03114130 CN03114130 CN 03114130 CN 03114130 A CN03114130 A CN 03114130A CN 1450088 A CN1450088 A CN 1450088A
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- potassium hydroxide
- alkali
- marine alga
- potassium
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Abstract
The production method of carragheen uses marine alga as raw material and includes the following steps: alkalu modification procedure treatment, cooking, rfiniting, salting out, dewatering and drying so as to obtain the invented finished product. The alkali modification procedure adopts the potassium hydroxide as modification agent, and uses pure water to prepare the potassium hydroxide into the potassium hydroxide solution, its concentration is 5-25%, and the potassium borohydride is added, and its added amount is 1-5% of potassium hydroxide. Said invention raises the gel strength and recovery rate of the prdoucts and can shorten production period and reduce its production cost.
Description
Technical field
The present invention relates to a kind of extracting method of natural colloid thing, particularly a kind of new process for producing that from marine alga, extracts carrageenin.
Background technology
Carrageenin has another name called carrageeman, carrageenin, it is the Sargassum polysaccharides that a class is extracted from marine red alga, its chemical structure is the linear polysaccharide compound that D-semi-lactosi and 3.6-dehydration-D-galactose residue are formed, have ester formula sulfate group in the residue, extensively be present in the marine algas such as carrageen, Eucheuma muricatum (Gmel.) Web, China fir algae, husky dish, since its have gel and water-retentivity, thickening and suspending, with premium properties such as combination of proteins, be widely used in industries such as food, chemical industry and medicine.
Carrageenin can be divided into k, l, λ three major types type substantially, derives from different marine algas respectively, and different purposes is also arranged respectively.Extract carrageenin from marine alga, its production process generally comprises alkali modification, boiling, makes with extra care, saltouts, dewaters and drying, and alkali modification is one of critical process in the carrageenin production, and it is to make 1 in the marine alga colloid, and D-semi-lactosi-6-sulfuric ester that 4-connects is sloughed C
6On sulfate change 1 into, 4-connect 3,6-dehydration-D-semi-lactosi, raising gel-strength and productive rate.Traditional alkali modification method is to be aided with Repone K with sodium-hydroxide treatment, is about to sodium hydroxide and is mixed with certain density solution, and dissolve in a spot of Repone K, then the marine alga submergence is wherein soaked for a long time.Because sodium hydroxide is strong to the destruction of frond, cause gelationus to run off easily, reduce the yield of carrageenin.Therefore limit concentration sodium hydroxide and treatment temp, caused the alkali modification overlong time, extended manufacture cycle, increased production cost.
Summary of the invention
The new process for producing that the objective of the invention is to overcome the shortcoming of above-mentioned prior art and a kind of carrageenin is provided, the yield and the gel-strength of raising carrageenin product shorten the production cycle, reduce production costs, and enlarge output.
Purpose of the present invention can realize by following technical measures: present method is raw material with the marine alga, through alkali modification, processing step such as boiling routinely again, make with extra care, saltout, dewater and drying makes solid product or by filtering, bleaching, concentrating and make liquid product, it is potassium hydroxide that the alkali that the alkali modification operation adopts changes agent.
It is the potassium hydroxide solution that potassium hydroxide is made into pure water that described alkali changes agent, marine alga is added in this solution soak, and leaches marine alga after the filtration, and it is 6.5～8.5 that marine alga is washed to pH value with pure water.
Described soaking temperature is 50～80 ℃, and soak time is 1～4.5 hour; Described pure water is soft water or deionized water; Described potassium hydroxide solution concentration is 5～25%.
Be the enhancing modified effect, can add POTASSIUM BOROHYDRIDE at potassium hydroxide solution, the add-on of POTASSIUM BOROHYDRIDE is 1～5% of a potassium hydroxide.
The present invention replaces traditional alkali to change agent with potassium hydroxide, produced beyond thought effect, compared with prior art, can prevent the destruction of sodium ion, reduce the colloidal loss frond, concentration of lye and treatment temp have been improved, shorten modification time, improved the yield and the gel-strength of carrageenin, reduced cost, for all types of carrageenin production provides a kind of new alkali modification method, thereby there is the favorable industrial production application to be worth.
Embodiment
Following examples have been described the present invention particularly, and used marine alga is an Eucheuma muricatum (Gmel.) Web, and it is potassium hydroxide and small amount of boron potassium hydride KH that the alkali that the alkali modification operation adopts changes agent.
Embodiment 1
At volume is to add the 400ml deionized water in the reactor of 500ml, and accurately weighing potassium hydroxide 20g, POTASSIUM BOROHYDRIDE 0.4g add in the reactor in the lump, connect power supply and are warming up to 50 ℃.Eucheuma muricatum (Gmel.) Web 20g with accurate weighing slowly pours in the reactor, shuts reactor, adjusts 60 rev/mins of stirring velocitys, 50 ℃ of constant temperature of temperature programmed control 1 hour.Open reactor, leach marine alga, alkali lye reclaims, and is 7 with deionized water rinsing marine alga to wash water pH value.Again through boiling, make with extra care, saltout, dewater, dry and pulverize, the finished product be white carrageenin powder.
Its result is as follows:
Product: 7 grams;
Yield: 35%
Gel-strength: 800g/cm
3
All the other quality index all meet FAO/QHO (1984) standard.
Embodiment 2
At volume is to add the 400ml deionized water in the reactor of 500ml, and accurately weighing potassium hydroxide 40g, POTASSIUM BOROHYDRIDE 2g add in the reactor in the lump, connect power supply and are warming up to 80 ℃.Eucheuma muricatum (Gmel.) Web 20g with accurate weighing slowly pours in the reactor, shuts reactor, adjusts 60 rev/mins of stirring velocitys, 80 ℃ of constant temperature of temperature programmed control 2 hours.Open reactor, leach marine alga, alkali lye reclaims, and is 7.5 with deionized water rinsing marine alga to wash water pH value.Pass through boiling again, make with extra care, saltout, dewater and drying, getting the finished product be white carrageenin powder.
Its result is as follows:
Product: 5 grams;
Yield: 25%
Gel-strength: 1500g/cm
3
All the other quality index all meet FAO/QHO (1984) standard.
Embodiment 3
At volume is to add the 400ml deionized water in the reactor of 500ml, and accurately weighing potassium hydroxide 80g, POTASSIUM BOROHYDRIDE 1g add in the reactor in the lump, connect power supply and are warming up to 65 ℃.Eucheuma muricatum (Gmel.) Web 20g with accurate weighing slowly pours in the reactor, shuts reactor, adjusts 60 rev/mins of stirring velocitys, 65 ℃ of constant temperature of temperature programmed control 3 hours.Open reactor, leach marine alga, alkali lye reclaims, and is 8 with deionized water rinsing marine alga to wash water pH value.Pass through boiling again, make with extra care, saltout, dewater and drying, getting the finished product be white carrageenin powder.
Its result is as follows:
Product: 5.5 grams;
Yield: 27.5%
Gel-strength: 1200g/cm
3
All the other quality index all meet FAO/QHO (1984) standard.
Embodiment 4
At volume is to add the 400ml deionized water in the reactor of 500ml, and accurately weighing potassium hydroxide 30g, POTASSIUM BOROHYDRIDE 0.6g add in the reactor in the lump, connect power supply and are warming up to 60 ℃.Eucheuma muricatum (Gmel.) Web 20g with accurate weighing slowly pours in the reactor, shuts reactor, adjusts 60 rev/mins of stirring velocitys, 60 ℃ of constant temperature of temperature programmed control 4.5 hours.Open reactor, leach marine alga, alkali lye reclaims, and is 8 with deionized water rinsing marine alga to wash water pH value.Pass through boiling again, make with extra care, saltout, dewater and drying, getting the finished product be white carrageenin powder.
Its result is as follows:
Product: 6 grams;
Yield: 30%
Gel-strength: 1000g/cm
3
All the other quality index all meet FAO/QHO (1984) standard.
Claims (3)
1, a kind of new process for producing of carrageenin is a raw material with the marine alga, after the alkali modification operation is handled, again through boiling, make with extra care, saltout, dehydration and drying process make product, it is characterized in that it is potassium hydroxide that alkali that the alkali modification operation adopts changes agent.
2, new process for producing according to claim 1 is characterized in that it is the potassium hydroxide solution that potassium hydroxide is made into pure water that alkali changes agent, and potassium hydroxide solution concentration is 5～25%.
3, new process for producing according to claim 2 is characterized in that adding POTASSIUM BOROHYDRIDE at potassium hydroxide solution, and the add-on of POTASSIUM BOROHYDRIDE is 1～5% of a potassium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03114130 CN1450088A (en) | 2003-04-02 | 2003-04-02 | Novel method for producing carragheen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03114130 CN1450088A (en) | 2003-04-02 | 2003-04-02 | Novel method for producing carragheen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1450088A true CN1450088A (en) | 2003-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03114130 Pending CN1450088A (en) | 2003-04-02 | 2003-04-02 | Novel method for producing carragheen |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174118A (en) * | 2011-01-15 | 2011-09-07 | 青岛大学 | Dehydration type preparation method for iota-type carrageenan |
| CN109648729A (en) * | 2017-10-12 | 2019-04-19 | 常州三全干燥设备有限公司 | For producing the process of carragheen wet product particle |
| CN114173576A (en) * | 2019-05-24 | 2022-03-11 | 杜邦营养美国公司 | Method for producing food ingredient derived from red seaweed and product obtained by the method |
-
2003
- 2003-04-02 CN CN 03114130 patent/CN1450088A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174118A (en) * | 2011-01-15 | 2011-09-07 | 青岛大学 | Dehydration type preparation method for iota-type carrageenan |
| CN102174118B (en) * | 2011-01-15 | 2012-07-04 | 青岛大学 | Dehydration type preparation method for iota-type carrageenan |
| CN109648729A (en) * | 2017-10-12 | 2019-04-19 | 常州三全干燥设备有限公司 | For producing the process of carragheen wet product particle |
| CN114173576A (en) * | 2019-05-24 | 2022-03-11 | 杜邦营养美国公司 | Method for producing food ingredient derived from red seaweed and product obtained by the method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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