CN102326669A - Process for preparing white fish meal by dehydrating and degreasing at low temperature at one time - Google Patents
Process for preparing white fish meal by dehydrating and degreasing at low temperature at one time Download PDFInfo
- Publication number
- CN102326669A CN102326669A CN201110248655A CN201110248655A CN102326669A CN 102326669 A CN102326669 A CN 102326669A CN 201110248655 A CN201110248655 A CN 201110248655A CN 201110248655 A CN201110248655 A CN 201110248655A CN 102326669 A CN102326669 A CN 102326669A
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- China
- Prior art keywords
- methyl ether
- fish
- fish meal
- extractor
- extraction tank
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- 235000019733 Fish meal Nutrition 0.000 title claims abstract description 37
- 239000004467 fishmeal Substances 0.000 title claims abstract description 37
- 241000442132 Lactarius lactarius Species 0.000 title claims abstract description 22
- 238000005238 degreasing Methods 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims abstract description 34
- 241000251468 Actinopterygii Species 0.000 claims abstract description 29
- 238000000605 extraction Methods 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 238000005516 engineering process Methods 0.000 claims description 18
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 6
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 238000010298 pulverizing process Methods 0.000 abstract description 2
- 238000002791 soaking Methods 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
- 230000008676 import Effects 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 235000019750 Crude protein Nutrition 0.000 description 1
- 102000057297 Pepsin A Human genes 0.000 description 1
- 108090000284 Pepsin A Proteins 0.000 description 1
- 235000021120 animal protein Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 235000013360 fish flour Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940111202 pepsin Drugs 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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Abstract
The invention discloses a process for preparing white fish meal by dehydrating and degreasing at low temperature at one time. The process comprises the following steps of: a, stirring fresh fish serving as a raw material up, conveying into an extraction tank, enclosing the extraction tank, and vacuumizing to -0.09MPa till air in the extraction tank is pumped away; b, injecting methyl ether into the extraction tank for soaking and extracting, soaking for 20-40 minutes and pumping methyl ether out of the extraction tank, wherein the weight ratio of methyl ether to fish is (1-1.2):1, and the extraction temperature is 30-50 DEG C; c, continually repeating the step b for three times, and removing the methyl ether from the extraction tank in vacuum; and d, discharging degreased and dehydrated fish residues out of the extraction tank, pulverizing with a ultrafine pulverizer, and sieving with a sieve of 60-120 meshes to obtain minus sieve serving as degreased and dehydrated white fish meal. The process has the advantages of easiness, quickness, high efficiency, low cost, no production of pollutants and good development prospect.
Description
Technical field
The present invention relates to the extraction process of subcritical fluids methyl ether at subcritical state, relating in particular to the subcritical fluids methyl ether is solvent, and dewatering and defatting makes the technology of white fish meal under the primary low-temperature state.
Background technology
Fish meal uses one or more fish to be raw material, through deoil, high-protein feed after the dehydration, grinding and processing.Global fish meal producing country mainly contains Peru, Chile, Japan, Denmark, the U.S., the former Soviet Union, Norway etc., and wherein Peru accounts for 70% of general trade amount with the export volume of Chile.China's fish meal output is not high, main grown place in the Shandong Province, Zhejiang Province, be provinces and cities such as Hebei, Tianjin, Fujian, Guangxi secondly.Latter stage in 20th century, the annual approximately import 700,000 t fish meal of China, about 80% from Peru, from Chilean import volume less than 10%, from the U.S., Japan, country in Southeast Asia a small amount of import is arranged also in addition.Though studying always, China feed worker explores low fish meal daily ration and no fish meal daily ration; But because fish meal has very high protein content and unique biological is worth; Fish meal still is that important animal protein adds feed so far, still can't replace with other feeds.
More than 100 ten thousand tons of China's year consumption fish meal account for 1/5 of world consumption amount, and ten thousand tons of year import 41-98 are fish meal country of consumption and importers the biggest in the world.The production procedure of traditional defatted fish flour is that the raw material fish is processed through a series of flow processs such as boiling, squeezing, Separation of Solid and Liquid, water-oil separating, steam drying or straight fire drying, cooling, screening, pulverizing.Its fish meal protein of producing between 62%-70%, VBN usually≤120, generally between 2-7, the pepsin digestion rate is at 90%-97%, between the salinity 1-3 for acid value.Have that work flow is complicated, cost is high, process has pollutes the shortcoming that produces.
Summary of the invention
Technical problem to be solved by this invention is that traditional fish meal work flow is complicated, cost is high, and process has pollutes the shortcoming that produces, provide a kind of efficiently, fish meal processing technology fast.
Adopt following technical scheme in order to solve the problems of the technologies described above: the primary low-temperature dewatering and defatting makes white fish meal technology; May further comprise the steps: a. is raw material with the fresh fish; Stir mashed being transported in the extractor, with the extractor sealing, be evacuated down to-0.09MPa takes out air in the extractor; B. in extractor, inject methyl ether and soak extraction, the weight ratio of methyl ether and fish is 1 ~ 1.2:1, and extraction temperature 30 ~ 50 degree after immersion in 20～40 minutes, are got extractor with methyl ether; C. after step b being repeated 3 times continuously, methyl ether in the extractor is taken off with vacuum; D. at last the fish dregs of rice after the degreasing dehydration are discharged in extractor, pulverize through micronizer, cross 60 ~ 120 mesh sieves, screenings promptly obtains the degreasing white fish meal that dewaters.
The weight ratio of methyl ether and fish is 1:1, and the extraction time is 20～30 minutes.
The weight ratio of methyl ether and fish is 1:1.1, and the extraction time is 30～35 minutes.
The weight ratio of methyl ether and fish is 1:1.2, and the extraction time is 20～35 minutes.
The weight ratio of methyl ether and fish is 1:1.1, and the extraction time is 20～35 minutes.
Pulverize through micronizer, cross 100 mesh sieves, screenings promptly obtains the degreasing white fish meal that dewaters.
Use eviscerated fish of the present invention can get crude protein content up to more than 80%, its acid value is the high-quality fish meal of 0 KOHmg/g; Technology of the present invention is simple, quick, efficient is high, and cost is low, and production process does not produce pollutant; Therefore, this invention has bright development prospect.
The specific embodiment
Embodiment 1:The primary low-temperature dewatering and defatting makes white fish meal technology, may further comprise the steps: a. is a raw material with the fresh fish, stirs mashed being transported in the extractor, with the extractor sealing, be evacuated down to-0.09MPa takes out air in the extractor; B. in extractor, inject methyl ether and soak extraction, the weight ratio of methyl ether and fish is 1 ~ 1.2:1, and extraction temperature 30 ~ 50 degree after immersion in 20～40 minutes, are got extractor with methyl ether; C. after step b being repeated 3 times continuously, methyl ether in the extractor is taken off with vacuum; D. at last the fish dregs of rice after the degreasing dehydration are discharged in extractor, pulverize through micronizer, cross 60 ~ 120 mesh sieves, screenings promptly obtains the degreasing white fish meal that dewaters.
Embodiment 2:The primary low-temperature dewatering and defatting makes white fish meal technology, and a. gets fresh fish 400g, directly stirs mashedly, is transported in the extractor, then with the extractor sealing, be evacuated down to-0.09MPa takes out air in the extractor; B. in extractor, inject methyl ether and soak extraction, the weight ratio of methyl ether and fish is 1:1, after immersion after 20～30 minutes, methyl ether is got extractor; C. in extractor, inject methyl ether once more and soak, step b is repeated 3 times continuously after, methyl ether in the extractor is taken off with vacuum; D. at last the fish dregs of rice after the degreasing dehydration are discharged in extractor, pulverize, cross 100 mesh sieves and promptly obtain degreasing dehydration fish meal through micronizer.
Embodiment 3: the primary low-temperature dewatering and defatting makes white fish meal technology, and the weight ratio of methyl ether and fish is 1:1.1, and the extraction time is 30～35 minutes; Pulverize through micronizer, cross 60 mesh sieves.
Other are with embodiment 2.
Embodiment 4: the primary low-temperature dewatering and defatting makes white fish meal technology, and the weight ratio of methyl ether and fish is 1:1.2, and the extraction time is 20～35 minutes; Pulverize through micronizer, cross 120 mesh sieves.
Other are with embodiment 2.
Embodiment 5: the primary low-temperature dewatering and defatting makes white fish meal technology, and the weight ratio of methyl ether and fish is 1:1.1, and the extraction time is 20～35 minutes; Pulverize through micronizer, cross 80 mesh sieves.
Other are with embodiment 2.
What more than enumerate only is to realize several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (6)
1. the primary low-temperature dewatering and defatting makes white fish meal technology, it is characterized in that may further comprise the steps: a. is a raw material with the fresh fish, stirs mashed being transported in the extractor, with the extractor sealing, be evacuated down to-0.09MPa takes out air in the extractor; B. in extractor, inject methyl ether and soak extraction, the weight ratio of methyl ether and fish is 1 ~ 1.2:1, and extraction temperature 30 ~ 50 degree after immersion in 20～40 minutes, are got extractor with methyl ether; C. after step b being repeated 3 times continuously, methyl ether in the extractor is taken off with vacuum; D. at last the fish dregs of rice after the degreasing dehydration are discharged in extractor, pulverize through micronizer, cross 60 ~ 120 mesh sieves, screenings promptly obtains the degreasing white fish meal that dewaters.
2. primary low-temperature dewatering and defatting according to claim 1 makes white fish meal technology, it is characterized in that: the weight ratio of methyl ether and fish is 1:1, and the extraction time is 20～30 minutes.
3. primary low-temperature dewatering and defatting according to claim 1 makes white fish meal technology, it is characterized in that: the weight ratio of methyl ether and fish is 1:1.1, and the extraction time is 30～35 minutes.
4. primary low-temperature dewatering and defatting according to claim 1 makes white fish meal technology, it is characterized in that: the weight ratio of methyl ether and fish is 1:1.2, and the extraction time is 20～35 minutes.
5. primary low-temperature dewatering and defatting according to claim 1 makes white fish meal technology, it is characterized in that: the weight ratio of methyl ether and fish is 1:1.1, and the extraction time is 20～35 minutes.
6. primary low-temperature dewatering and defatting according to claim 1 makes white fish meal technology, it is characterized in that: pulverize through micronizer, cross 100 mesh sieves, screenings promptly obtains the degreasing white fish meal that dewaters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102486557A CN102326669B (en) | 2011-08-26 | 2011-08-26 | Process for preparing white fish meal by dehydrating and degreasing at low temperature at one time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102486557A CN102326669B (en) | 2011-08-26 | 2011-08-26 | Process for preparing white fish meal by dehydrating and degreasing at low temperature at one time |
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| Publication Number | Publication Date |
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| CN102326669A true CN102326669A (en) | 2012-01-25 |
| CN102326669B CN102326669B (en) | 2013-05-08 |
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| CN2011102486557A Expired - Fee Related CN102326669B (en) | 2011-08-26 | 2011-08-26 | Process for preparing white fish meal by dehydrating and degreasing at low temperature at one time |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104824348A (en) * | 2015-05-29 | 2015-08-12 | 东莞市林氏生物技术股份有限公司 | A kind of high-protein fully defatted fish meal and preparation method thereof |
| CN104824720A (en) * | 2015-05-29 | 2015-08-12 | 东莞市林氏生物技术股份有限公司 | A kind of high calcium phosphorus semi-skimmed fish meal and preparation method thereof |
| CN104921187A (en) * | 2014-05-08 | 2015-09-23 | 宁波大学 | Method for preparing fish oil and fish paste from internal organs of squids through subcritical fluid extraction and enzymolysis coupling |
| CN104957371A (en) * | 2015-05-29 | 2015-10-07 | 东莞市林氏生物技术股份有限公司 | High-nutrition steam fish meal and preparation method thereof |
| CN105941837A (en) * | 2016-05-31 | 2016-09-21 | 东莞市林氏生物技术股份有限公司 | High-protein fish meal and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962838A (en) * | 2006-11-22 | 2007-05-16 | 侯金荣 | Method for extracting grease |
| CN101484562A (en) * | 2006-05-24 | 2009-07-15 | 工业研究有限公司 | Extraction of highly unsaturated lipids with liquid dimethyl ether |
| CN101906254A (en) * | 2010-07-20 | 2010-12-08 | 安阳市晶华油脂工程有限公司 | Method for extracting capsaicin ointment from dimethyl ether |
-
2011
- 2011-08-26 CN CN2011102486557A patent/CN102326669B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101484562A (en) * | 2006-05-24 | 2009-07-15 | 工业研究有限公司 | Extraction of highly unsaturated lipids with liquid dimethyl ether |
| CN1962838A (en) * | 2006-11-22 | 2007-05-16 | 侯金荣 | Method for extracting grease |
| CN101906254A (en) * | 2010-07-20 | 2010-12-08 | 安阳市晶华油脂工程有限公司 | Method for extracting capsaicin ointment from dimethyl ether |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104921187A (en) * | 2014-05-08 | 2015-09-23 | 宁波大学 | Method for preparing fish oil and fish paste from internal organs of squids through subcritical fluid extraction and enzymolysis coupling |
| CN104824348A (en) * | 2015-05-29 | 2015-08-12 | 东莞市林氏生物技术股份有限公司 | A kind of high-protein fully defatted fish meal and preparation method thereof |
| CN104824720A (en) * | 2015-05-29 | 2015-08-12 | 东莞市林氏生物技术股份有限公司 | A kind of high calcium phosphorus semi-skimmed fish meal and preparation method thereof |
| CN104957371A (en) * | 2015-05-29 | 2015-10-07 | 东莞市林氏生物技术股份有限公司 | High-nutrition steam fish meal and preparation method thereof |
| CN105941837A (en) * | 2016-05-31 | 2016-09-21 | 东莞市林氏生物技术股份有限公司 | High-protein fish meal and preparation method thereof |
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| CN102326669B (en) | 2013-05-08 |
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Effective date of registration: 20170704 Address after: 455000 Anyang, Zhejiang Province, Henan hi tech Zone in the southern section of the main song Hong Henan, m m 200 Patentee after: Henan Yalinjie Biological Technology Co., Ltd. Address before: 455100 Intellectual Property Office of Anyang County, Henan, Anyang Patentee before: Zhu Xinliang |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20180826 |