CN1502589A - Method for preparing fertilizer by using krill - Google Patents
Method for preparing fertilizer by using krill Download PDFInfo
- Publication number
- CN1502589A CN1502589A CNA021359121A CN02135912A CN1502589A CN 1502589 A CN1502589 A CN 1502589A CN A021359121 A CNA021359121 A CN A021359121A CN 02135912 A CN02135912 A CN 02135912A CN 1502589 A CN1502589 A CN 1502589A
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- CN
- China
- Prior art keywords
- krill
- chitosan
- liquid
- fertilizer
- solid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Fertilizers (AREA)
Abstract
The method for preparing fertilizer by using krill includes the following steps: breaking krill, heating and autolyzing, adding alkali, continuous heating to make hydrolysis, solid-liquid separation to obtain the liquid-krill protein liquor, adding alkali into the obtained solid krill shell, deacetylating at 60-100 deg.C to separate out solid chitosan, mixing the chitosan colloid solution obtain by acid dissolving the latter with the above-mentioned krill protein solution, adding H2O2 solution and degrading chitosan and krill protein so as to obtain the invented fertilizer which can raise the photosynthesis of crops and can promote the plant growth.
Description
Technical field
The present invention relates to a kind of organic fertilizer, particularly relate to a kind of method for preparing organic fertilizer with krill.
Background technology
Krill belongs to crustacean, and the whole world has 85 kinds, is distributed widely in the South Pole and the arctic.The long 50-60mm of krill body is a food with the plant plankton, is positioned at the primary stage of food chain.Have the krill that great economy is worth and have 6 kinds, and with the output maximum of krill (Euphausia superba) and Euphausia pacifica (E.pacifica).At present, the amount of fishing of all krills reaches 160000 tons, but also not fully exploitation of the potentiality of using.The krill nutritive substance is abundant, has the multiple amino acids that satisfies plant-growth, polysaccharide, trace element, pigment etc.The nutritive value of krill is very high, uses it for pet food and has been subjected to people's attention.Now, countries such as Britain, Colombia and Canada have begun to consider to utilize the bait of krill as aquaculture and other animals, but have not yet to see the people with the relevant patent of krill as fertilizer.
Summary of the invention
The purpose of this invention is to provide and a kind ofly prepare the method for liquid fertilizer or solid fertilizer with krill, it can remedy the above-mentioned deficiency of prior art.
A kind ofly prepare the method for fertilizer, it is characterized in that krill is pulverized, place reactor with krill; intensification autolysis; add alkali, continue the intensification hydrolysis, solid-liquid separation; the liquid of gained is the krill protein liquid; solid krill shell to gained adds alkali, and deacetylation under 60-110 ℃ of temperature is isolated the solids chitosan; the molten chitosan gum liquid solution that obtains of chitosan acid is mixed with the krill protein liquid, add H
2O
2Solution reaction, chitosan and krill proteolytic degradation are fertilizer.
Krill fertilizer of the present invention can directly use, or uses with other solid, organic and inorganic fertilizer or soil improvement agent are mixed with the liquid or solid form.Fertiliser production method of the present invention is easy to control, and production cost is low.Fertilizer of the present invention can strengthen the crop photosynthesis effect, promotes plant-growth.
Embodiment
After 100 kilograms of freezing krills were thawed, mechanical disintegration placed the 500L stainless steel cauldron, is warming up to 45 ℃ of autolysises, keeps 5 hours, added 2 kilograms of 50%NaOH (concentration expressed in percentage by weight, down with) then, was warming up to 105 ℃ again, hydrolysis 2 hours.Solid-liquid separation, the liquid of gained are the krill protein liquid.Solid krill shell to gained adds 45%NaOH, reacts in the stainless steel still 3 hours, and deacetylation under 110 ℃ of temperature, isolated solids are chitosan, and the liquid krill albumen of separating is transferred pH to 6.3, the flocculation particle occurs.Again chitosan is dissolved in 2% hydrochloric acid soln, forms the chitosan gum liquid solution.50 kilograms of chitosan gum liquid solutions are mixed with 80 kilograms of krill protein liquids, add 30%H
2O
23 kilograms of solution under 100 ℃ of conditions, reacted 2 hours, and chitosan and krill proteolytic degradation are water-soluble, are liquid fertilizer.
Krill autolysis temperature described in the present embodiment is 30-50 ℃, and the autolysis time is 1-12 hour; The described alkaline hydrolysis time is 1-4 hour, adds the 1-4% that alkali number is a krill weight; The described solid chitosan deacetylation time is 3-24 hour; Volume ratio was 1 when described chitosan gum liquid solution mixed with the krill protein liquid: 1.5-4; Described adding H
2O
2Reaction times is 1-4 hour.
After 500 times of fertilizer dilutions of the present invention, be used for rye seed soaking experiment.The all dry weight ratios of experimental group rye do not increase by 23.4% with the control group of this fertilizer after 15 days.This shows that this krill fertilizer has tangible facilitation effect to crop root and leaf growth.
Fertilizer of the present invention is raw material with krill integral body, contains all amino acid, low molecular chitosan and trace element from krill.Production method of the present invention comprises by the krill autolytic enzyme and makes full use of the degraded oneself protein, realizes that krill meat shell separates.Utilize the flocculate with chitosan krill albumen of krill shell preparation, and in conjunction with oxidation style and acid hydrolyzation, chitosan and the albumen of krill is further degraded, and oligosaccharides, small peptide, the amino acid of formation solubility are prepared into fertilizer.
Claims (6)
1, a kind ofly prepares the method for fertilizer, it is characterized in that krill is pulverized, place reactor with krill; intensification autolysis; add alkali, continue the intensification hydrolysis, solid-liquid separation; the liquid of gained is the krill protein liquid; solid krill shell to gained adds alkali, and deacetylation under 60-110 ℃ of temperature is isolated the solids chitosan; the molten chitosan gum liquid solution that obtains of chitosan acid is mixed with the krill protein liquid, add H
2O
2Solution reaction, chitosan and krill proteolytic degradation are fertilizer.
2, the method for claim 1 is characterized in that described krill autolysis temperature is 30-50 ℃, and the autolysis time is 1-12 hour.
3, the method for claim 1 is characterized in that the described alkaline hydrolysis time is 1-4 hour, adds the 1-4% that alkali number is a krill weight.
4, the method for claim 1 is characterized in that it is 3-24 hour that described solid chitosan is taken off the reaction times of acetyl.
5, the method for claim 1 is characterized in that described chitosan gum liquid solution and krill protein liquid blended weight ratio 1: 1.5-4.
6, the method for claim 1 is characterized in that described adding H
2O
2Reaction times is 1-4 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021359121A CN1502589A (en) | 2002-11-25 | 2002-11-25 | Method for preparing fertilizer by using krill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021359121A CN1502589A (en) | 2002-11-25 | 2002-11-25 | Method for preparing fertilizer by using krill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1502589A true CN1502589A (en) | 2004-06-09 |
Family
ID=34231551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021359121A Pending CN1502589A (en) | 2002-11-25 | 2002-11-25 | Method for preparing fertilizer by using krill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1502589A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050886A (en) * | 2010-12-01 | 2011-05-11 | 农业部规划设计研究院 | Method for producing agricultural chitosan and active calcium fertilizer by utilizing crawfish |
| CN102351592A (en) * | 2011-04-14 | 2012-02-15 | 深圳市深博泰生物科技有限公司 | High-efficiency multifunctional foliage fertilizer and production method thereof |
| CN101690538B (en) * | 2009-09-24 | 2012-05-23 | 中国海洋大学 | Method for preparing low-fluorine Euphausia superba protein base materials |
| CN102766530A (en) * | 2012-08-08 | 2012-11-07 | 辽宁省大连海洋渔业集团公司 | Method for extracting phospholipid-rich krill oil from Antarctic krill |
| CN102816638A (en) * | 2012-08-30 | 2012-12-12 | 辽宁省大连海洋渔业集团公司 | Method for extracting phospholipid-rich krill oil from antarctic krills |
-
2002
- 2002-11-25 CN CNA021359121A patent/CN1502589A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690538B (en) * | 2009-09-24 | 2012-05-23 | 中国海洋大学 | Method for preparing low-fluorine Euphausia superba protein base materials |
| CN102050886A (en) * | 2010-12-01 | 2011-05-11 | 农业部规划设计研究院 | Method for producing agricultural chitosan and active calcium fertilizer by utilizing crawfish |
| CN102050886B (en) * | 2010-12-01 | 2012-05-02 | 农业部规划设计研究院 | Method for producing agricultural chitosan and active calcium fertilizer by utilizing crawfish |
| CN102351592A (en) * | 2011-04-14 | 2012-02-15 | 深圳市深博泰生物科技有限公司 | High-efficiency multifunctional foliage fertilizer and production method thereof |
| CN102351592B (en) * | 2011-04-14 | 2015-06-24 | 深圳市深博泰生物科技有限公司 | High-efficiency multifunctional foliage fertilizer and production method thereof |
| CN102766530A (en) * | 2012-08-08 | 2012-11-07 | 辽宁省大连海洋渔业集团公司 | Method for extracting phospholipid-rich krill oil from Antarctic krill |
| CN102816638A (en) * | 2012-08-30 | 2012-12-12 | 辽宁省大连海洋渔业集团公司 | Method for extracting phospholipid-rich krill oil from antarctic krills |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |