CN1840548A - Process for preparing algin with fresh kelp as raw material - Google Patents
Process for preparing algin with fresh kelp as raw material Download PDFInfo
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- CN1840548A CN1840548A CN 200510044406 CN200510044406A CN1840548A CN 1840548 A CN1840548 A CN 1840548A CN 200510044406 CN200510044406 CN 200510044406 CN 200510044406 A CN200510044406 A CN 200510044406A CN 1840548 A CN1840548 A CN 1840548A
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Abstract
The related preparation method for algin with kelp comprises: adding 200wt% water to dip kelp for 30min, cutting up, dipping with formaldehyde, and cleaning with water; digesting with Na2CO3 solution to obtain muddy liquid, filtering, diluting, centrifugal separating to obtain clear glue solution; adding CaCl2 to obtain calcium alginate; using diluted HCl to remove calcium; neutralizing, dewatering, grinding, adding CaCO3 powder, granulating, drying, cooling, and grinding to obtain the product. This invention improves yield with low cost.
Description
Technical field
The present invention relates to the seaweed chemical technology, especially a kind of is the method for raw material production algin with bright sea-tangle.
Background technology
Algin is the general designation of alginic acid, alginate and alignic organic derivative, and algin has been widely used in aspects such as seal spins, food, medicine, chemical industry, agricultural gradually since coming out.Algin can be divided into according to its viscosity: ultra-low viscosity, low viscosity, medium viscosity, high viscosity and hyperviscosity algin, producing algin at present generally adopts dried sea-tangle as raw material, sea-tangle is in system of shining and storage process, owing to be subjected to the influence of enzyme, microorganism and other physical chemical factors, cause the algin viscosity degradation bigger, can't production high viscosity glue.Domestic manufacturer adopts dried sea-tangle as raw material, continue to use traditional technology and produce algin, traditional technology is: steep 10 hour or more with a large amount of water loggings dried sea-tangle, must leach the Mare Humorum band of iodine and N.F,USP MANNITOL composition, be cut into 10 centimeters stick with machine, use the clear water repetitive scrubbing, clean mucilage attached to the frond surface; Soda ash with 1% concentration is made digestive pharmaceutical, clears up to be stored in the alginic acid that mainly exists with the calcium alginate form in the sea-tangle body; Become mud shape viscous fluid after the frond digestion, wherein contain a large amount of fiber-like and do not allow residue and impurity, adopt operations such as dilution, floating, filtration usually, progressively remove tiny dregs and impurity and make the glue cleaning; The glue that to handle after filtration again adds an amount of mineral acid and calcium chloride, makes water-soluble sodium alginate change water-insoluble alginic acid or calcium alginate gel into and concentrates and separate out; The calcium alginate gel will add dilute hydrochloric acid and stir decalcification; With alginate gel press dewatering after the decalcification and pulverizing, the powdered sodium carbonate that adds alginic acid weight 8% fully stirs to be mediated evenly, places 6 hours, alginic acid is converted into sodium alginate, again through dry dried the getting product of dry dried machine.This technology exists will soak the sea-tangle raw material for a long time with a large amount of water, and the algin of producing belongs to medium viscosity glue, the shortcoming that price is low.In recent years, lack the cost rising that factors such as (the sea-tangle system of shining need take a large amount of soils) also causes producing algin along with labor cost rising and threshing ground.
Summary of the invention
The algin viscosity that will soak the sea-tangle raw material for a long time with a large amount of water, produce is low to be reached because of shining the deficiency that system sea-tangle raw material causes production cost to raise in order to solve in the prior art, and provide a kind of is the method for raw material production algin with bright sea-tangle, this method directly uses bright sea-tangle as raw materials for production, not only saved the solarization system process of sea-tangle, reduced production cost, and the yield height of algin, but and production high viscosity algin.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of is the method for raw material production algin with bright sea-tangle, and its preparation process is as follows:
(A), pre-treatment: the fresh sea-tangle that will gather in, add the water logging bubble 30～50 minutes of 2 times of sea-tangle weight, chopping, was soaked 6 hours to 1% formaldehyde fermentation vat with pump delivery, water washes and removes formaldehyde then;
(B), digestion: the sodium carbonate solution with 0.5%～1%, under 50～60 ℃ temperature condition, digested 4～6 hours, obtain heavy-gravity sodium alginate mud shape thing;
(C), towards rare: the Digestive system of sodium alginate mud shape thing is removed still indigested Radix Laminariae, piece through coarse filtration, and the glue water is towards rare, is 10～20 times of bright sea-tangle raw material towards the consumption of rare water;
(D), centrifugal removing slag: will obtain clarifying glue towards the glue after rare by the centrifugal suspended substance of telling in kelp residue and the glue of supercentrifuge;
(E), calcium is analysed: under stirring condition, adding concentration is 10% calcium chloride solution in the clarification glue, contains 2.5%～3% hydrogenchloride in the calcium chloride solution, and the add-on of calcium chloride is equivalent to glue weight 0.2%～0.25%, gets the calcium alginate gel;
(F), decalcification: the calcium alginate gel through spiral draining device draining, is carried out decalcification with the dilute hydrochloric acid solution wash-out immediately;
(G), neutralization transforms: the alginate gel press dewatering after the decalcification is divided into 75～80% to moisture, pulverize the back and drop into retort in 1: 1 ratio with the alcohol of concentration more than 90%, the liquid caustic soda that adds small amounts of sodium hydroxide content 40% while stirring, make PH be tending towards neutrality or subacidity, add an amount of sodium hypochlorite bleaching liquid, fully after the effect, slowly add alkali lye again, PH is maintained about 8, till PH is constant, the sodium alginate that gained is cotton-shaped carries out the centrifugal waste alcohol of sloughing, and promptly gets liquid phase glue;
(H), solid phase transforms: will be after press dewatering to the alginate gel of water content 65%～70% is pulverized, the above anhydrous sodium carbonate powder of 100 orders that adds alginic acid weight 8%, fully mediate through kneader, neutralization fully, control transforms the apparent PH of good algin between 6～7.5, promptly gets solid phase and transforms algin;
(I), drying: the algin that solid phase is transformed after the tablets press granulation, be positioned over the moisture eliminator inner drying to moisture content below 15%, the cooling back is pulverized and is got product.
For improving the centrifugal effect that removes slag, add simultaneously in rare process at the sodium alginate glue and to use 1% the good chitosan solution of acetate dissolution in advance, add-on is to make in rare sodium alginate glue to contain chitosan 10mg/kg.
Described decalcification process adopts the two-stage decalcification, and the brown alga gel is behind a diluted acid wash-out, and drop removes waste acid water; Carry out the decalcification second time with diluted acid again, drop removes waste acid water, and decalcification is adopted 3% dilute hydrochloric acid with diluted acid, washes with water at last one time, drains away the water.
The present invention directly utilizes bright sea-tangle as the raw material of producing algin, bright sea-tangle can not be subjected to the influence of enzyme, microorganism and other physical chemical factors without the system of shining, but production high viscosity algin, and reduced production cost, the yield height of algin is tested factually, and its yield is than using dried laminaria production can improve more than 10～20%, replace traditional floating method that removes slag with the centrifugal method that removes slag in the production, can reduce the water of productive use more than 30%, have and to improve the quality of products, increase the advantage of benefit.
Embodiment
The present invention is further described below in conjunction with embodiment.
Embodiment 1:
(A), pre-treatment: 100 kilograms in the bright sea-tangle of getting new harvesting, the water logging that adds 200 kilograms was steeped 30 minutes, chopping, with pump delivery to the formaldehyde fermentation vat with 1% formaldehyde (concentration of formaldehyde is done 100% calculating with 36% formaldehyde solution), soak and carried out the immobilization processing in 6 hours, then water flushing removing formaldehyde;
(B), digestion: the sodium carbonate solution with 1%, under 60 ℃ temperature condition, digested 4 hours, obtain heavy-gravity sodium alginate mud shape thing;
(C), towards rare:: the Digestive system of sodium alginate mud shape thing is removed still indigested Radix Laminariae, piece through coarse filtration, and the glue water is towards rare, is approximately 1000 kilograms towards the consumption of rare water; For improving next step centrifugal effect that removes slag, add simultaneously in rare process at the sodium alginate glue and to use 1% the good chitosan solution of acetate dissolution in advance, add-on is to make in rare sodium alginate glue to contain chitosan 10mg/kg;
(D), centrifugal removing slag: will obtain clarifying glue towards the glue after rare by the centrifugal suspended substance of telling in kelp residue and the glue of supercentrifuge;
(E), calcium is analysed: under stirring condition, adding concentration is 10% calcium chloride solution in the clarification glue, contain 2.5% hydrogenchloride in the calcium chloride solution, the add-on of calcium chloride is equivalent to glue weight 0.25%, and this moment, sodium alginate was transformed into the long and tough and tensile calcium alginate gel of fiber;
(F), decalcification: the calcium alginate gel carries out decalcification with the dilute hydrochloric acid solution wash-out immediately through spiral draining device draining; The decalcification process adopts the two-stage decalcification, and the brown alga gel is behind a diluted acid wash-out, and drop removes waste acid water; Carry out the decalcification second time with diluted acid again, drop removes waste acid water, and decalcification is adopted 3% dilute hydrochloric acid with diluted acid, washes with water at last one time, drains away the water;
(G), neutralization transforms: the alginate gel press dewatering with decalcification, after draining away the water to water content 75%, pulverize the back and drop into retort in 1: 1 ratio with the alcohol of concentration more than 90%, the liquid caustic soda that adds small amounts of sodium hydroxide content 40% while stirring, make PH be tending towards neutrality or subacidity, add an amount of sodium hypochlorite bleaching liquid, fully after the effect, slowly add alkali lye again, PH is maintained about 8, till PH is constant, the sodium alginate that gained is cotton-shaped carries out the centrifugal waste alcohol of sloughing, and promptly gets liquid phase glue.
(H), solid phase transforms: will be after press dewatering to the alginate gel of water content 65% is pulverized, add the above anhydrous sodium carbonate powder of 100 orders of alginic acid weight 8%, fully mediate through kneader, neutralization fully, the apparent PH that control transforms good algin is 7, promptly gets solid phase and transforms algin;
(I), drying: the algin that solid phase is transformed is positioned over the moisture eliminator inner drying after the tablets press granulation, moisture content is below 15%, and the cooling back is pulverized and got product.
Embodiment 2:
(A), pre-treatment: 500 kilograms in the bright sea-tangle of getting new harvesting, the water logging that adds 1000 kilograms was steeped 50 minutes, chopping, with pump delivery to the formaldehyde fermentation vat with 1% formaldehyde (concentration of formaldehyde is done 100% calculating with 36% formaldehyde solution), soak and carried out the immobilization processing in 6 hours, then water flushing removing formaldehyde;
(B), digestion: the sodium carbonate solution with 0.8%, under 55 ℃ temperature condition, digested 6 hours, obtain heavy-gravity sodium alginate mud shape thing;
(C), towards rare:: the Digestive system of sodium alginate mud shape thing is removed still indigested Radix Laminariae, piece through coarse filtration, and the glue water is towards rare, is approximately 10000 kilograms towards the consumption of rare water; For improving next step centrifugal effect that removes slag, add simultaneously in rare process at the sodium alginate glue and to use 1% the good chitosan solution of acetate dissolution in advance, add-on is to make in rare sodium alginate glue to contain chitosan 10mg/kg;
(D), centrifugal removing slag: will obtain clarifying glue towards the glue after rare by the centrifugal suspended substance of telling in kelp residue and the glue of supercentrifuge;
(E), calcium is analysed: under stirring condition, adding concentration is 10% calcium chloride solution in the clarification glue, contain 3% hydrogenchloride in the calcium chloride solution, the add-on of calcium chloride is equivalent to glue weight 0.2%, and this moment, sodium alginate was transformed into the long and tough and tensile calcium alginate gel of fiber;
(F), decalcification: the calcium alginate gel through spiral draining device draining, is carried out decalcification with the dilute hydrochloric acid solution wash-out immediately; The decalcification process adopts the two-stage decalcification, and the brown alga gel is behind a diluted acid wash-out, and drop removes waste acid water; Carry out the decalcification second time with diluted acid again, drop removes waste acid water, and decalcification is adopted 3% dilute hydrochloric acid with diluted acid, washes with water at last one time, drains away the water;
(G), neutralization transforms: the alginate gel press dewatering with decalcification, after draining away the water to water content 80%, pulverize the back and drop into retort in 1: 1 ratio with the alcohol of concentration more than 90%, the liquid caustic soda that adds small amounts of sodium hydroxide content 40% while stirring, make PH be tending towards neutrality or subacidity, add an amount of sodium hypochlorite bleaching liquid, fully after the effect, slowly add alkali lye again, PH is maintained about 8, till PH is constant, the sodium alginate that gained is cotton-shaped carries out the centrifugal waste alcohol of sloughing, and promptly gets liquid phase glue.
(H), solid phase transforms: will be after press dewatering to the alginate gel of water content 70% is pulverized, the above anhydrous sodium carbonate powder of 100 orders that adds alginic acid weight 8%, fully mediate through kneader, neutralization fully, the apparent PH that control transforms good algin is 6.5, promptly gets solid phase and transforms algin;
(I), drying: the algin that solid phase is transformed is positioned over the moisture eliminator inner drying after the tablets press granulation, moisture content is below 15%, and the cooling back is pulverized and got product.
Claims (3)
1, a kind of is the method for raw material production algin with bright sea-tangle, and it is characterized in that: its preparation process is as follows:
(A), pre-treatment: the fresh sea-tangle that will gather in, add the water logging bubble 30～50 minutes of 2 times of sea-tangle weight, chopping, was soaked 6 hours to 1% formaldehyde fermentation vat with pump delivery, water washes and removes formaldehyde then;
(B), digestion: the sodium carbonate solution with 0.5%～1%, under 50～60 ℃ temperature condition, digested 4～6 hours, obtain heavy-gravity sodium alginate mud shape thing;
(C), towards rare: the Digestive system of sodium alginate mud shape thing is removed still indigested Radix Laminariae, piece through coarse filtration, and the glue water is towards rare, is 10～20 times of bright sea-tangle raw material towards the consumption of rare water;
(D), centrifugal removing slag: will obtain clarifying glue towards the glue after rare by the centrifugal suspended substance of telling in kelp residue and the glue of supercentrifuge;
(E), calcium is analysed: under stirring condition, adding concentration is 10% calcium chloride solution in the clarification glue, contains 2.5%～3% hydrogenchloride in the calcium chloride solution, and the add-on of calcium chloride is equivalent to glue weight 0.2%～0.25%, gets the calcium alginate gel;
(F), decalcification: the calcium alginate gel through spiral draining device draining, is carried out decalcification with the dilute hydrochloric acid solution wash-out immediately;
(G), neutralization transforms: the alginate gel press dewatering after the decalcification is divided into 75～80% to moisture, pulverize the back and drop into retort in 1: 1 ratio with the alcohol of concentration more than 90%, the liquid caustic soda that adds small amounts of sodium hydroxide content 40% while stirring, make PH be tending towards neutrality or subacidity, add an amount of sodium hypochlorite bleaching liquid, fully after the effect, slowly add alkali lye again, PH is maintained about 8, till PH is constant, the sodium alginate that gained is cotton-shaped carries out the centrifugal waste alcohol of sloughing, and promptly gets liquid phase glue;
(H), solid phase transforms: will be after press dewatering to the alginate gel of water content 65%～70% is pulverized, the above anhydrous sodium carbonate powder of 100 orders that adds alginic acid weight 8%, fully mediate through kneader, neutralization fully, control transforms the apparent PH of good algin between 6～7.5, promptly gets solid phase and transforms algin;
(I), drying: the algin that solid phase is transformed after the tablets press granulation, be positioned over the moisture eliminator inner drying to moisture content below 15%, the cooling back is pulverized and is got product.
2, according to claim 1 a kind of be the method for raw material production algin with bright sea-tangle, it is characterized in that: at described sodium alginate glue in rare process, add and use 1% the good chitosan solution of acetate dissolution in advance, add-on is to make in rare sodium alginate glue to contain chitosan 10mg/kg.
3, according to claim 1 and 2 a kind of be the method for raw material production algin with bright sea-tangle, it is characterized in that: described decalcification process adopts the two-stage decalcification, and the brown alga gel is behind a diluted acid wash-out, and drop removes waste acid water; Carry out the decalcification second time with diluted acid again, drop removes waste acid water, and decalcification is adopted 3% dilute hydrochloric acid with diluted acid, washes with water at last one time, drains away the water.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101889712A (en) * | 2010-07-09 | 2010-11-24 | 中国水产科学研究院黄海水产研究所 | Method for preserving fresh seaweed by using aldin complex |
| CN101906174A (en) * | 2010-07-29 | 2010-12-08 | 中国水产科学研究院黄海水产研究所 | Improved method of fresh kelp high-efficiency pretreatment and algin extraction processes for chemical engineering |
| CN101585890B (en) * | 2008-06-20 | 2011-08-24 | 青岛聚大洋海藻工业有限公司 | Method for preparing sodium alginate from kelp |
| CN102180990A (en) * | 2011-04-15 | 2011-09-14 | 江南大学 | Method for preparing high-viscosity sodium alginate from kelp |
| CN102771757A (en) * | 2012-08-07 | 2012-11-14 | 淮海工学院 | Method for preparing undaria pinnatifida sauce |
| CN103360509A (en) * | 2013-07-16 | 2013-10-23 | 山东洁晶集团股份有限公司 | Method for preparing alginic acid and alginate by taking fresh sargassum as raw material |
| CN104341233A (en) * | 2013-08-08 | 2015-02-11 | 青岛博研达工业技术研究所(普通合伙) | Method for high-efficiency extraction of nutrient substances in undaria pinnatifida sporophyll |
| CN104610463A (en) * | 2015-02-04 | 2015-05-13 | 山东洁晶集团股份有限公司 | Method for industrial production of sodium alginate by adopting South Africa great kelps |
| CN104804108A (en) * | 2014-01-25 | 2015-07-29 | 青岛海之林生物科技开发有限公司 | Ultra-high viscosity algin production process |
| CN106699919A (en) * | 2017-01-05 | 2017-05-24 | 中国水产科学研究院黄海水产研究所 | Seaweed chemical sodium alginate solution double-calcium calcification extraction and wastewater recycling process |
| CN106749752A (en) * | 2016-12-20 | 2017-05-31 | 青岛明月海藻集团有限公司 | A kind of preparation method of ultra-low viscosity alginate |
| CN115104670A (en) * | 2021-03-22 | 2022-09-27 | 南京益纤生物科技有限公司 | Feed additive for improving immunity of livestock and poultry and preparation method thereof |
| TWI798085B (en) * | 2022-05-13 | 2023-04-01 | 國立屏東科技大學 | Method for preparing alginic acid gel |
-
2005
- 2005-08-18 CN CN 200510044406 patent/CN1840548A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585890B (en) * | 2008-06-20 | 2011-08-24 | 青岛聚大洋海藻工业有限公司 | Method for preparing sodium alginate from kelp |
| CN101889712A (en) * | 2010-07-09 | 2010-11-24 | 中国水产科学研究院黄海水产研究所 | Method for preserving fresh seaweed by using aldin complex |
| CN101889712B (en) * | 2010-07-09 | 2012-06-27 | 中国水产科学研究院黄海水产研究所 | Method for preserving fresh seaweed by using aldin complex |
| CN101906174A (en) * | 2010-07-29 | 2010-12-08 | 中国水产科学研究院黄海水产研究所 | Improved method of fresh kelp high-efficiency pretreatment and algin extraction processes for chemical engineering |
| CN102180990A (en) * | 2011-04-15 | 2011-09-14 | 江南大学 | Method for preparing high-viscosity sodium alginate from kelp |
| CN102180990B (en) * | 2011-04-15 | 2012-06-20 | 江南大学 | Method for preparing high-viscosity sodium alginate from kelp |
| CN102771757A (en) * | 2012-08-07 | 2012-11-14 | 淮海工学院 | Method for preparing undaria pinnatifida sauce |
| CN103360509A (en) * | 2013-07-16 | 2013-10-23 | 山东洁晶集团股份有限公司 | Method for preparing alginic acid and alginate by taking fresh sargassum as raw material |
| CN104341233A (en) * | 2013-08-08 | 2015-02-11 | 青岛博研达工业技术研究所(普通合伙) | Method for high-efficiency extraction of nutrient substances in undaria pinnatifida sporophyll |
| CN104804108A (en) * | 2014-01-25 | 2015-07-29 | 青岛海之林生物科技开发有限公司 | Ultra-high viscosity algin production process |
| CN104804108B (en) * | 2014-01-25 | 2016-11-16 | 青岛海之林生物科技开发有限公司 | A kind of production technology of hyperviscosity Algin |
| CN104610463A (en) * | 2015-02-04 | 2015-05-13 | 山东洁晶集团股份有限公司 | Method for industrial production of sodium alginate by adopting South Africa great kelps |
| CN106749752A (en) * | 2016-12-20 | 2017-05-31 | 青岛明月海藻集团有限公司 | A kind of preparation method of ultra-low viscosity alginate |
| CN106749752B (en) * | 2016-12-20 | 2020-03-31 | 青岛明月海藻集团有限公司 | Preparation method of ultra-low viscosity alginate |
| CN106699919A (en) * | 2017-01-05 | 2017-05-24 | 中国水产科学研究院黄海水产研究所 | Seaweed chemical sodium alginate solution double-calcium calcification extraction and wastewater recycling process |
| CN106699919B (en) * | 2017-01-05 | 2018-06-22 | 中国水产科学研究院黄海水产研究所 | A kind of double calcium calcification extractions of seaweed chemical alginic glue and waste water circulation reusing technology |
| CN115104670A (en) * | 2021-03-22 | 2022-09-27 | 南京益纤生物科技有限公司 | Feed additive for improving immunity of livestock and poultry and preparation method thereof |
| TWI798085B (en) * | 2022-05-13 | 2023-04-01 | 國立屏東科技大學 | Method for preparing alginic acid gel |
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