CN1082316A - A kind of preparation method of amino polysaccharide copper chelate germicide - Google Patents
A kind of preparation method of amino polysaccharide copper chelate germicide Download PDFInfo
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- CN1082316A CN1082316A CN 92109032 CN92109032A CN1082316A CN 1082316 A CN1082316 A CN 1082316A CN 92109032 CN92109032 CN 92109032 CN 92109032 A CN92109032 A CN 92109032A CN 1082316 A CN1082316 A CN 1082316A
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- copper
- bactericide
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- chelating
- glycosaminoglycan
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Abstract
The present invention relates to a kind of preparation method of crop bactericide, particularly a kind of glycosaminoglycan copper chelate bactericide of making as the copper ion chelating agent with 2-deoxidation, 2-amino, β (1-4) D glucan (hereinafter to be referred as CT).This bactericide collection CT sterilization, in the plant surface film forming with promote the effect of crop growth, and the bactericidal action of copper is one, makes it and can promote crop growth again by sterilizing disease-preventing, improves output, this is that general agricultural chemicals is not available.
The present invention makes this bactericide with two kinds of methods, and a kind of CT of being is suspended in the inert media prior to the copper chelating and the formic acid reaction again; Another kind method is for earlier making CT behind the water-soluble acetate and the copper chelating again.Two kinds of methods all can make water soluble amino polysaccharide copper chelate bactericide.Manufacture craft of the present invention is simple, easily capable, easy to operate, raw material resources are enriched, and have use value widely.
Description
The present invention relates to a kind of preparation method of crop bactericide, amino β (1-4) the D glucan of particularly a kind of 2-deoxidation, 2-(hereinafter to be referred as CT) is as the chelating agent of copper ion, the crop bactericide of making.Visit this bactericide and have the function that promotes crop growth concurrently.
Copper agent is effective bactericide, the history in existing more than 100 year of the application on agricultural.Owing to resistance do not occur, still continue now to use, wherein most typical preparation is " bordeaux mixture ", this medicine sprays back as rainy, loses the mattress effect of killing just fallen by rain drop erosion, so service condition and effect all are restricted, the term of validity shortens, and copper ion does not play one's part to the full.In order to overcome its shortcoming, some new copper agents also appear in recent years, as " suspension copper " etc., but still there are many weak points.
In order to remedy above-mentioned deficiency, the invention provides a kind of glycosaminoglycan copper chelate bactericide that can long-acting bactericidal can promote crop growth again.
CT is a kind of pure natural glycosaminoglycan, nonpoisonous and tasteless material, CT itself has inhibitory action to multiple bacillus, 0.4% the CT aqueous solution is to Escherichia coli, golden staphylococcus, tangerine grass bacillus all has the inhibitory action of strong row, amino cation in the CT molecule can with the combination of phosphoric acid in multiple fungi ribonucleic acid limit anion, hinder the synthetic of gene and play bactericidal action.And CT is to having preventive and therapeutic effect owing to fungus-caused phytopathy, and the disease that some virus is caused also has certain effect, and for example to paddy rice rot, wheat rust, grape and potato knee etc. all has preventive and therapeutic effect.Owing to contain the very easy and copper ion generation chelate of hydroxyl and amino in the CT molecular structure, the generation of chelate and the disassociation of copper ion are reversible reactions, this life of CT is a kind of macromolecule filming material in addition, can form thin film on the crops surface after being sprayed on the crops, the dissolving of this film is a process slowly, thereby long with CT as the chelating agent term of validity of copper ion, spray the back and run off little.The bactericidal action of collection CT and in the effect of plant surface film forming, and the bactericidal action of copper, collecting three kinds of functions is one, make it to become a kind of sterilizing disease-preventing and render a service higher new copper preparation, CT not only has the sterilizing disease-preventing effect behind a kind of effect growth regulator of broad spectrum activity and the copper ion chelating, and this point is that general agricultural chemicals is not available.
The present invention is achieved in that the chelating agent as copper ion with CT.
Method one: CT earlier and behind the copper chelating, with the formic acid reaction, technological process is: CT uses 100 order silk screen filter after crushed in being suspended in ethanol medium.Powdery CT after the filtration will mix in the copper nitrate solution of its adding with ethanol (or ethyl acetate) dissolving, add formic acid or lactic acid again and in 25～30 ℃ of temperature, react chelating, part amino and copper play chelation in the course of reaction CT molecule, amino and the formic acid generation salt chelate of a part, after filtration, with ethanol (or ethyl acetate) wash, press dry, dry, pulverizing, obtain can be with water-soluble solid glycosaminoglycan copper chelate bactericide, water dissolves and can make spray during use.
Method two: earlier CT is made behind the water-soluble acetate again and the copper chelating.Technological process is: CT, water, acetic acid are mixed together the heated and stirred dissolving, CT becomes colloidal solution, the hydrogen peroxide of adding 25% is degraded to CT, solution viscosity is reduced, with the stainless silk screen filter of 100 orders, filter residue enriching acetate dissolution, behind the elimination impurity as feeding intake next time, other gets copper nitrate and water is mixed with copper nitrate solution, this solution splashed into while stirring carry out chelating in the CT solution, obtain liquid glycosaminoglycan copper chelate bactericide, spray according to plant disease kind dilute with water during use.
The manufacture craft flow process of glycosaminoglycan copper chelate bactericide of the present invention is simple, easy to operate, and raw material resources are abundant, and this bactericide scope of application is extensive.Simple CT has inhibitory action to multiple bacillus, and the oxygen base cation in the CT molecule can with the phosphate radical anion combination in the multiple fungi ribonucleic acid, hinder the synthetic of gene, thereby play bactericidal action.After CT and copper chelating, bactericidal effect is better, and increases the scope of diseases prevention.
Be further described below in conjunction with process chart:
Fig. 1 is method one process chart of the present invention
Fig. 2 is a method two process chart of the present invention
Embodiment 1: with reference to Fig. 1; with degree of acetylation is CT(1 more than 75%) after pulverizing (2) with 100 order silk screen filter (3); get the CT(1 that sieves) add the middle stirring of solution (7) that becomes with 4 kilogram of 25% ethanol (or ethyl acetate) (5) and 80 gram copper nitrates (4) dissolvings (6) earlier in 1 kilogram of input reaction bulb; add (8) 0.5 kilograms in formic acid (or lactic acid) chelating (9) 5 hours in 25～30 ℃ of temperature again; behind the chelating (9) (10) after filtration; add ethanol (or ethyl acetate) (5) washing (11), press dry (12) back and reclaim ethanol (or ethyl acetate) (5) chelate drying (13); pulverizing that (14) obtain can be with water-soluble solid glycosaminoglycan copper chelate bactericide finished product (15).The water dissolving can be made spray during use.
Embodiment 2: with reference to Fig. 2; with degree of acetylation is CT(1 more than 75%) 500 grams; (2) 4.5 kilograms in water; acetic acid (3) 150 gram Hybrid Heating stirring and dissolving (4); after hydrogen peroxide with 25% (5) degraded (6); filtering (7) filter residue (8) adds acetic acid (3) dissolving (9) and feeds intake (10) next time of removing impurity (11) filtrate (2) after filtration; other gets copper nitrate (14) 200 grams; (2) 4.8 kilograms of dissolvings (15) together of water; solution (16) splashed into while stirring carry out chelating (17) in the CT solution (13), obtain the glycosaminoglycan copper chelate bactericide finished product (18) of liquid at last.Dilute with water sprays during use.
Claims (3)
1, a kind of preparation method of glycosaminoglycan copper chelate bactericide is characterized in that with 2-deoxidation, amino β (1-4) glucan of 2-(hereinafter to be referred as the CT) chelating agent as copper ion,
A.CT elder generation and copper chelating are suspended in ethanol (or ethyl acetate) medium and the formic acid reaction again,
B. earlier CT is made behind the water-soluble formic acid again and the copper chelating.
2, the preparation method of glycosaminoglycan copper chelate bactericide as claimed in claim 1, it is characterized in that behind CT and the copper chelating chelate after filtration, with ethanol (or ethyl acetate) wash, press dry, operation such as drying, pulverizing etc. obtains solid glycosaminoglycan copper chelate bactericide.
3, the preparation method of glycosaminoglycan copper chelate bactericide as claimed in claim 1, it is characterized in that degrading with hydrogen peroxide after CT, water, the acetic acid Hybrid Heating stirring and dissolving, reclaim filter residue, filtrate and copper chelating after filtration and obtain liquid glycosaminoglycan copper chelate bactericide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92109032 CN1082316A (en) | 1992-08-05 | 1992-08-05 | A kind of preparation method of amino polysaccharide copper chelate germicide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92109032 CN1082316A (en) | 1992-08-05 | 1992-08-05 | A kind of preparation method of amino polysaccharide copper chelate germicide |
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| Publication Number | Publication Date |
|---|---|
| CN1082316A true CN1082316A (en) | 1994-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92109032 Pending CN1082316A (en) | 1992-08-05 | 1992-08-05 | A kind of preparation method of amino polysaccharide copper chelate germicide |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002087598A1 (en) * | 2001-04-09 | 2002-11-07 | Bomac Laboratories Limited | Improvements in and relating to the administration of copper to an animal |
| CN101745116B (en) * | 2008-12-17 | 2012-02-01 | 中国科学院大连化学物理研究所 | Preparation method for copper ion chelate adsorbing medium used for curing Wilson's disease |
| CN107232202A (en) * | 2017-07-23 | 2017-10-10 | 青岛海大生物集团有限公司 | A kind of preparation method of sea grass polysaccharide network ammonia copper fungicide |
-
1992
- 1992-08-05 CN CN 92109032 patent/CN1082316A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002087598A1 (en) * | 2001-04-09 | 2002-11-07 | Bomac Laboratories Limited | Improvements in and relating to the administration of copper to an animal |
| GB2390543A (en) * | 2001-04-09 | 2004-01-14 | Bomac Lab Ltd | Improvements in and relating to the administration of copper to an animal |
| GB2390543B (en) * | 2001-04-09 | 2005-10-12 | Bomac Research Ltd | Improvements in and relating to the administration of copper to an animal |
| AU2002338509B2 (en) * | 2001-04-09 | 2006-11-02 | Bomac Research Limited | Improvements in and relating to the administration of copper to an animal |
| AU2002338509B8 (en) * | 2001-04-09 | 2006-12-07 | Bomac Research Limited | Improvements in and relating to the administration of copper to an animal |
| CN101745116B (en) * | 2008-12-17 | 2012-02-01 | 中国科学院大连化学物理研究所 | Preparation method for copper ion chelate adsorbing medium used for curing Wilson's disease |
| CN107232202A (en) * | 2017-07-23 | 2017-10-10 | 青岛海大生物集团有限公司 | A kind of preparation method of sea grass polysaccharide network ammonia copper fungicide |
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