CN1059644A - The processing method of algae paste after collecting of salt algae - Google Patents
The processing method of algae paste after collecting of salt algae Download PDFInfo
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- CN1059644A CN1059644A CN91105077A CN91105077A CN1059644A CN 1059644 A CN1059644 A CN 1059644A CN 91105077 A CN91105077 A CN 91105077A CN 91105077 A CN91105077 A CN 91105077A CN 1059644 A CN1059644 A CN 1059644A
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Abstract
A kind of processing method of algae paste after collecting of salt algae, it is through counter-current decantation operation washing and desalting with the back salt algae concentrate of gathering (meeting salt is stuck with paste by algae), the centrifugal dehydration enrichment, freezing below-20 ℃, by the ice-melt of screw classifying ice-melt machine, cell liquid is taken off in classification, and algae filter and sabot be cryogenic refrigeration below-30 ℃ 20～24 hours, then under 0.09-0.1MPa post vacuum condition lyophilization to get water content be 10～20% freeze-dried algae powder.
Algae of the present invention is stuck with paste dehydration thoroughly, and deep cooling does not destroy bioactivator, obtained freeze-drying algae powder is convenient to Separation of Solid and Liquid in the leaching operation, can use homemade general separation equipment, and it is supporting to be beneficial to maintenance, is suitable for industrial applying.
Description
The invention belongs to a salt algae concentration matter (algae paste) and be processed into the method for dried algae thing.
In the present invention was to utilize the dissolved air flotation enrichment concentrate of gathering from the nutrient solution of salt algae in the past, in recovery process, normal a kind of chemical substance such as the citric acid complex flocculation agent of adding, as aluminium salt, molysite etc., make the floating collection of flocculating of described salt algae, obtain wet algae concentrate, homogenate adds vegetable oil or effumability solvent leaching natural Beta-carotene (for example us4680314) wherein then, this method technology is simple, but the citric acid price is more expensive, has increased the leaching cost, and this wet extraction Separation of Solid and Liquid difficulty, can only obtain the carrotene oil solution, the saliferous algae is stuck with paste strong to equipment corrosion, especially evil is gone through in the supercentrifuge corrosion that is used to separate, adopted wet algae to stick with paste the leaching of dry back afterwards again, though help separating, loss can reach 10～80% when carrotene was dry, and CN10442-77A sticks with paste processing method to algae and improves, its main feature is that algae is stuck with paste the washing desalination, the centrifugal dehydration enrichment, cell liquid is removed in freeze drying, goes leaching then; (" Hydrobiologla " 151/152:90～105(1987)) commented on the whole bag of tricks that the results of beta carotene are extracted in " the cultivation system beta carotene of Du Shi algae: from the pilot scale to the factory " literary composition, wherein mentioned and to have gathered in the crops algae (algao) (being rich in beta carotene in the algae) by spraying (cavitation) drying or freeze-drying method for 101 pages, above method washing and desalting enrichment is to prepare for freezing, freezing after heat is melted can discharge cell liquid, algae is stuck with paste become the fine sand shape, being convenient to leaching separates, but the method washing process water consumption is too big, cold algae heating and melting process water content is still big, easily emulsification.It is few that the object of the invention provides a cover water consumption, do not destroy the algae of bioactivator and stick with paste the treatment process method.
The present invention realizes like this, with reference to accompanying drawing 1, the saliferous algae is stuck with paste through counter-current decantation operation washing and desalting, through freezing under-16～-24 ℃ of conditions after the centrifugal dehydration, open ice then algae and melt with steam, again through the centrifugation second time, isolated algae filter and through cryogenic refrigeration, the algae lyophilization under vacuum condition of freezing after freezing gets the algae powder of freeze-drying.
It is 10～15 ° of Be' that saliferous algae of the present invention is stuck with paste general concentration, on how much deciding of dissolved air water, algae is stuck with paste through secondary or the above counter-current decantation of secondary, with running water or hyposaline water gaging saliferous algae paste is carried out secondary or the washing more than the secondary, gained desalination and the algae of deviating from a part of water are stuck with paste through the centrifugal dehydration of decanter type horizontal spiral separator,-16～-24 ℃ of quick-freeze refrigerators or freezer below-20 ℃ are put in the sabot after this operation is further dewatered of algae paste, be frozen into the algae ice cube through 20～24 hours, with ice breaker the algae ice cube is broken into the algae ice cube of 20～40mm size again, directly fall into screw classifying ice-melt machine, being harrowed algae outlet gradually in the algae of ice-melt motor spindle directly falls into tripod pendulum type batch centrifugal and carries out the centrifugation second time and slough water, returning centrifuge the filtrate of the first two minute of dewatering causes damage in case wear filter, it is stand-by in centrifugal dehydration the cell liquid that flows out from the frustule of fragmentation to be taken back the breed pond with parting liquid, filter is also used and the once back discharging sabot of clear water washing of filtering and water content equates, the cryogenic refrigeration 20～24 hours (conventional depth freezing finger-30～-40 ℃ of conditions are freezing) under＜-30 ℃ of conditions of sabot algae, freeze algae in 0.09～0.1MPa vacuum sublimation, under condition of negative pressure, make the algae temperature go back up to room temperature, treat that obtained freeze-drying algae powder water content took out, and can send to leaching at 10～20% o'clock.
With reference to accompanying drawing 2, counter-current decantation washing procedure of the present invention is the example explanation with two stage countercurrents, earlier by the one-level concentrator 1. 3. the saliferous algae stick with paste, and uses the low saline salinity overflowing liquid from the secondary concentrator 4. to wash, and first order overflowing liquid 5. (being brackish water) is made dilution water usefulness with returning breed.The underflow after first order washing 6. (algae paste) send into the secondary concentrator 2..7. wash with fresh tap water, to second level underflow 8. salt concentration be qualified less than 1 ° of Be ', the secondary underflow enters the centrifugal dehydration operation.It is 3～5 that described counter-current decantation always washs modulus, and clear liquid layer height maintains 100～500mm scope in the concentrator.
With reference to accompanying drawing 3, ice-melt machine of the present invention is the angled strap clamp cover spiral classifier 9. in a kind of and ground, the overfall of this grader one end 10. with the algae outlet of the other end
On same horizontal line, 10. locate to put one at overfall and block the ice net
, block algae ice cube in the overflowing liquid, in the upper right side of chuck steam inlet is arranged
, there is condensate outlet the lower left
The algae ice cube that is fractured into 20～40mm size is from being positioned at the upper left inlet of grader
Enter, steam is from import
Enter, the algae ice cube is melted by steam, and the algae of thawing is by screw reamer
Be advanced to the algae outlet
Fall into the tripod pendulum type batch centrifugal centrifugation, 10. the water of thawing or cell liquid flow out back the counter-current decantation operation from overfall.
Counter-current decantation operation of the present invention is the classification washing that the saliferous algae is stuck with paste, and water consumption is few, and the corresponding apparatus volume is little and clean result that clean result is more general is good.
Deep cooling below-30 ℃ of the present invention, the vacuum sublimation drying process does not destroy bioactivator because pass through spiral classifier classification and centrifugation again after for the first time freezing, water content still less in the algae, therefore be convenient to separating of the oily algae separation of back leaching operation or solvent and algae, so just needn't use the supercentrifuge of costliness, can use homemade common apparatus, be convenient to industrial application, keep in repair supportingly, cost is also low, is convenient to large tracts of land and goes into operation.
Obtained freeze-drying algae powder of the present invention can be used as the raw material of leaching natural Beta-carotene, also can make food or feed addictive.
Description of drawings:
Fig. 1 sticks with paste the treatment process schematic diagram for the saliferous algae.
Fig. 2 is a secondary counter-current decantation schematic diagram.
Fig. 3 is strap clamp cover screw classifying ice-melt machine schematic diagram.
Embodiment 1:
Getting the air supporting method algae of 12 ° of Be ' of 100g saliferous sticks with paste, at the washing modulus is to carry out secondary counter-current decantation washing and desalting under 4 the situation, saliferous was less than 1 ° of Be ' time during second level thickener underflow algae was stuck with paste, change centrifugal dehydration over to, take out after then filtering and insert four-star refrigerator quick-frozen diel, grating makes its thawing, after the suction method dehydration, deep cooling is to make the ice distillation under the 0.09MPa situation in vacuum to-30 ℃ of diels, gets moisture 14% freeze-dried algae powder 8 grams that are divided into.
Embodiment 2:
Getting the air supporting method algae of 15 ° of Be ' of one kilogram of saliferous sticks with paste, at the washing modulus is to carry out three stage countercurrent decantate desalinations under 3 the situation, third level underflow algae is stuck with paste saliferous less than 1 ° of Be ' time, change centrifugal dehydration over to, the filter and insert four-star refrigerator quick-frozen diel after, grating makes its thawing, with the centrifugal dehydration of φ 300mm tripod pendulum type batch centrifugal, take off cell liquid, with 0.5 liter of running water washing filter and back deep cooling diel in＜-30 ℃ of refrigerator-freezers, vacuum sublimation (vacuum 0.09MPa post) gets moisture 16% freeze-dried algae powder 110 grams.
Claims (4)
1, a kind of processing method of algae paste after collecting of salt algae, it is that the saliferous algae is stuck with paste washing and desalting, the dehydration enrichment, and described concentrated back algae stuck with paste carry out freezing heat and melt, the filter of Separation of Solid and Liquid gained algae is also leached.The present invention is characterised in that:
A, saliferous algae are stuck with paste through counter-current decantation technology washing and desalting;
B, freezing back algae ice cube fragmentation are after liquid is taken off in the screw classifying ice-melt machine ice-melt classification of strap clamp cover;
The dense algae that C, grader are told sticks with paste centrifugation after cryogenic refrigeration, and vacuum sublimation gets freeze-dried algae powder.
2, according to the processing method of the described algae paste after collecting of salt algae of claim 1, it is characterized in that described counter-current decantation operation washing modulus is 3～5, clear liquid layer height is 100～500mm in the concentrator.
3, the processing method of taking the back algae to stick with paste according to the described salt algae of claim 1 is characterized in that 10. the overfall of described screw classifying ice-melt machine exports with algae
On same horizontal line.
4,, it is characterized in that described dense algae cryogenic temperature is-30 ℃ or-30～-40 ℃ according to the processing method of the described algae paste after collecting of salt algae of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91105077A CN1059644A (en) | 1991-07-29 | 1991-07-29 | The processing method of algae paste after collecting of salt algae |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91105077A CN1059644A (en) | 1991-07-29 | 1991-07-29 | The processing method of algae paste after collecting of salt algae |
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| Publication Number | Publication Date |
|---|---|
| CN1059644A true CN1059644A (en) | 1992-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91105077A Pending CN1059644A (en) | 1991-07-29 | 1991-07-29 | The processing method of algae paste after collecting of salt algae |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064551C (en) * | 1997-01-31 | 2001-04-18 | 童微星 | Salt algae dissolvable granule preparation for treating digestive canal disease |
| CN100504263C (en) * | 2007-08-14 | 2009-06-24 | 江苏鼎泽环境工程有限公司 | Blue algae volume reduction technique |
| CN106261059A (en) * | 2015-06-12 | 2017-01-04 | 胡培芹 | A kind of preparation method of salt alga powder |
| CN108165048A (en) * | 2017-12-20 | 2018-06-15 | 河南科技大学 | A kind of natural food colour salt algae Huang and its preparation method and application |
| CN111841844A (en) * | 2020-07-22 | 2020-10-30 | 潍坊藻智源生物科技有限公司 | Method for preparing microencapsulated dunaliella salina powder solid granules |
-
1991
- 1991-07-29 CN CN91105077A patent/CN1059644A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064551C (en) * | 1997-01-31 | 2001-04-18 | 童微星 | Salt algae dissolvable granule preparation for treating digestive canal disease |
| CN100504263C (en) * | 2007-08-14 | 2009-06-24 | 江苏鼎泽环境工程有限公司 | Blue algae volume reduction technique |
| CN106261059A (en) * | 2015-06-12 | 2017-01-04 | 胡培芹 | A kind of preparation method of salt alga powder |
| CN108165048A (en) * | 2017-12-20 | 2018-06-15 | 河南科技大学 | A kind of natural food colour salt algae Huang and its preparation method and application |
| CN108165048B (en) * | 2017-12-20 | 2020-04-17 | 河南科技大学 | Natural edible pigment dunaliella salina yellow and preparation method and application thereof |
| CN111841844A (en) * | 2020-07-22 | 2020-10-30 | 潍坊藻智源生物科技有限公司 | Method for preparing microencapsulated dunaliella salina powder solid granules |
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