CN106665577A - Chitooligo saccharide composition for reducing pesticide residues in crops - Google Patents
Chitooligo saccharide composition for reducing pesticide residues in crops Download PDFInfo
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- CN106665577A CN106665577A CN201611257582.7A CN201611257582A CN106665577A CN 106665577 A CN106665577 A CN 106665577A CN 201611257582 A CN201611257582 A CN 201611257582A CN 106665577 A CN106665577 A CN 106665577A
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- Prior art keywords
- chitosan oligosaccharide
- composition
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- reducing
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
- A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/18—Vapour or smoke emitting compositions with delayed or sustained release
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/32—Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/14—Preparation of compounds containing saccharide radicals produced by the action of a carbohydrase (EC 3.2.x), e.g. by alpha-amylase, e.g. by cellulase, hemicellulase
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/26—Preparation of nitrogen-containing carbohydrates
Abstract
The invention relates to a feed, in particular to a chitooligo saccharide composition for reducing pesticide residues in crops. In order to solve the technical problems, the invention adopts the technical scheme that chitooligo saccharide accounts for 0.003 to 0.01 percent of the weight of a pesticide composition. A preparation method of the chitooligo saccharide of the chitooligo saccharide composition for reducing the pesticide residues in the crops comprises the following steps: adding 2 to 6 parts of H2O2 and deionized water into 50 parts of the chitosan; controlling the total volume at 5 mL and the microwave power of 460 W; carrying out treatment for 3 hours; carrying out intermittent heating, namely cooling with cooling water every time when microwave works for 0.5 minute, and then carrying out dissolving through an acetic acid solution with the concentration of 2 percent after cooling is completed; after the chitosan is subjected to viscosity reduction through microwaves, and preparing the chitooligo saccharide through enzymolysis with specific chitosanase, namely obtaining the chitooligo saccharide with high purity.
Description
Technical field
The present invention relates to chitosan oligosaccharide composition, more particularly, to a kind of for reducing the chitosan oligosaccharide that agricultural chemicals is remained in crop
Composition.
Background technology
Chitin also known as chitin or chitin etc., are widely present in lower animal, particularly arthropod, such as insect,
It is a kind of natural boiomacromolecule in the shell of crustacean etc. and rudimentary plant, bacterium, the cell membrane of algae, category is linear more
Carbohydrate, is the homogeneous state polysaccharide containing amino, and structure is very much like with cellulose.Chitin is that a kind of reproducible energy and industry are former
Material, it is only second to cellulose in the yield of nature.Shitosan is the product of the de- N- acetyl group of chitin.Due to chitin,
Shitosan is water insoluble, so there is certain limitation in development and application, and passes through to degrade chitin or shitosan obtains
Chitosan oligosaccharide (its degree of polymerization is below 20), not only good water solubility and is easily absorbed, and with its unique various functional properties,
The aspects such as wastewater treatment, food industry, weaving, chemical industry, household chemicals, agricultural, bioengineering and medicine have extensive use
On the way, plant defense ability is such as improved, is a class chitinase inhibitors.
The research and utilization of living marine resources is the emphasis of 21 century marine resources development.Chitosan oligosaccharide is ocean life of new generation
Material resource agricultural chemicals, with nonhazardous, it is free from environmental pollution, have drug effect and the dual biological regulation function of fertilizer efficiency concurrently the characteristics of, can induce and swash
Living plant immune system, improves plant virus resistance ability.
The Chinese patent of application number 201110333825.1 discloses a kind of for reducing the shell that agricultural chemicals is remained in crop
Oligosaccharide composition, the invention is related to a kind of for reducing chitosan oligosaccharide composition that agricultural chemicals is remained in crop and application thereof and side
Method, specifically the invention provides a kind of for reducing the composition pesticide that agricultural chemicals is remained in crop, in the composition pesticide
Comprising chitosan oligosaccharide, the percentage by weight that chitosan oligosaccharide accounts for the composition pesticide is 0.003%-0.008%.Present invention also offers
The above-mentioned composition pesticide comprising chitosan oligosaccharide is for reducing the purposes and its apply comprising chitosan oligosaccharide that agricultural chemicals is remained in crop
The method that composition reduction agricultural chemicals is remained in crop.The invention solves to reduce the major issue that agricultural chemicals is remained in crop, especially
It is with the composition pesticide comprising chitosan oligosaccharide after the crop for the treatment of applying pesticides, not only to reduce agricultural chemicals and remained in crop,
And poisoning will not be produced to crop, the problem of secondary residues of pesticides will not be produced.
But the invention has that insecticidal effect is poor, the problem of residues of pesticides effect difference is reduced.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of for reducing the chitosan oligosaccharide group that agricultural chemicals is remained in crop
Compound.
The present invention solves its technology:
The percentage by weight that chitosan oligosaccharide accounts for the composition pesticide is 0.003%-0.01%.
Preferably, the percentage by weight that chitosan oligosaccharide accounts for the composition pesticide is 0.004%-0.008%.
Described composition, it is characterised in that said composition can be made into suspending agent, aqueous emulsion, microemulsion, missible oil, wettable
Pulvis or water dispersible granules, and corresponding solvent, carrier and auxiliary agent can be needed to use according to exploitation.
A kind of preparation method for reducing the chitosan oligosaccharide of the chitosan oligosaccharide composition that agricultural chemicals is remained in crop：
50 parts of shitosans are taken, 2-6 parts of H is added2O2, deionized water, control cumulative volume for 5mL, microwave power be 460W, treatment
3h, Bian intermittent-heating, microwave action, just with cooling water cooling, are dissolved after cooling per 0.5min with 2% acetic acid solution.Shitosan
By after microwave viscosity reduction, preparing chitosan oligosaccharide with the chitosan enzyme enzymolysis of selectivity, reaction temperature 45-50 during controlled enzymatic hydrolysis
DEG C, pH is controlled to 5.0-7.5, concentration of substrate 3%, enzyme addition lOU/g substrates, enzymolysis time 200-300min, you can obtain height
The chitosan oligosaccharide of purity.
Preferably, 2 parts of H are added2O2。
Preferably, chitosan oligosaccharide is prepared with the chitosan enzyme enzymolysis of selectivity, 45 DEG C of reaction temperature, pH during controlled enzymatic hydrolysis
It is controlled to 5.8, concentration of substrate 3%, enzyme addition lOU/g substrates, enzymolysis time 300min.
Wherein described crop is any plant directly or indirectly cultivated for human needs, it is preferred that the crop choosing
From wheat, paddy rice, apple, pears, tealeaves, citrus, corn, cowpea, industrialized agriculture crop, such as vegetables planted in big canopy, large cherry, grape
Deng.
Wherein described agricultural chemicals be organic phosphine or botanical pesticide class agricultural chemicals, preferably agricultural chemicals be carbofuran, carbosulfan,
Orthene, Rogor, imidacloprid or methylamine phosphine.
Of the invention a kind of for reducing the chitosan oligosaccharide composition that agricultural chemicals is remained in crop, beneficial aspect is：
1. chitosan oligosaccharide has broad-spectrum antibacterial active and nontoxic to people and animals；
2. shitosan can make insecticide efficiency time extend at least one month, illustrate that it has obvious sustained release and controlled release work(to agricultural chemicals
Energy；
3. chitosan oligosaccharide can strengthen defence capability of the plant to pest and disease damage as plant growth regulator.
The present invention is a kind of for reducing the chitosan oligosaccharide composition that agricultural chemicals is remained in crop, and chitosan oligosaccharide is a kind of good life
Material resource agricultural chemicals, it can induce plant to produce disease resistance, possess certain bactericidal effect, and can improve some other insecticide
Insecticidal effect, can therefore effectively reduce residual, effective carbofuran, carbosulfan, orthene, the pleasure of agricultural chemicals
Really, the residual of the agricultural chemicals such as imidacloprid or methylamine phosphine, its Light use capability that can also strengthen crop promotes the fortune of photosynthate
It is defeated, be conducive to increasing production and the yield of dry, crop individual growth is physically well developed, improve the yield and quality.
Specific embodiment
Embodiment 1
The present invention solves its technology:
50 parts of shitosans are taken, 2-4 parts of H is added2O2, deionized water, control cumulative volume for 5mL, microwave power be 460W, treatment
3h, Bian intermittent-heating, microwave action, just with cooling water cooling, are dissolved after cooling per 0.5min with 2% acetic acid solution.Shitosan
By after microwave viscosity reduction, preparing chitosan oligosaccharide with the chitosan enzyme enzymolysis of selectivity, reaction temperature 45-47 during controlled enzymatic hydrolysis
DEG C, pH is controlled to 5.0-5.5, concentration of substrate 3%, enzyme addition lOU/g substrates, enzymolysis time 200-250min, you can obtain height
The chitosan oligosaccharide of purity.
The chitosan oligosaccharide that will be obtained accounts for the percentage by weight of the composition pesticide for 0.003%-0.05% dilutes by chitosan oligosaccharide,
Obtain the composition solution containing chitosan oligosaccharide.Composition be can be made into suspending agent.The composition solution of Chlorphenesin and chitosan oligosaccharide
Residues of pesticides can be effectively reduced with reference to after.
Composition solution 0.0001-0.0002 parts of chitosan oligosaccharide, emamectin benzoate 1-2 parts, sodium lignin sulfonate 1-6 parts, second
Glycol 1-3 parts, Chlorphenesin 1-8 parts, silicone oil 1g, water surplus complement to 100g.Other auxiliary agents are mixed, through high speed shear
It is well mixed, Ketek and emamectin benzoate are added, abrading-ball 2-3 hours in ball crusher, make a diameter in below 5mm, it is obtained
The aqueous suspension formulations of the Pesticidal combination containing Ketek and emamectin benzoate of the present invention.
Embodiment 2
The present invention solves its technology:
50 parts of shitosans are taken, 2 parts of H are added2O2, deionized water, control cumulative volume for 5mL, microwave power be 460W, process 3h,
Bian intermittent-heatings, microwave action, just with cooling water cooling, is dissolved after cooling per 0.5min with 2% acetic acid solution.Shitosan passes through
After microwave viscosity reduction, chitosan oligosaccharide is prepared with the chitosan enzyme enzymolysis of selectivity, 45 DEG C of reaction temperature during controlled enzymatic hydrolysis, pH controls
It is 5.8, concentration of substrate 3%, enzyme addition lOU/g substrates, enzymolysis time 300min, you can obtain the chitosan oligosaccharide of high-purity.
The chitosan oligosaccharide that will be obtained is 0.006%% dilution by the percentage by weight that chitosan oligosaccharide accounts for the composition pesticide, is obtained
Composition solution containing chitosan oligosaccharide.Composition be can be made into aqueous emulsion.
The composition solution 0.0002g of chitosan oligosaccharide, emamectin benzoate 1g, polyoxyethylene aliphatic alcohol ether 4g, dichloromethane 3g,
Sodium citrate 4g, ethylene glycol 3g, silicone oil 1g, xanthans 5g, water complements to 100g.By active compound Ketek and emamectin benzoate, solvent
It is added together with emulsifying agent, cosolvent, makes to be dissolved into uniform oil phase by part water, antifreeze, the others such as antimicrobial
Insecticides adjuvant mixes into uniform water phase；Oil phase is added into water phase while high-speed stirred in a kettle., is slowly added
Water is until reach phase inversion point, opening cutter carries out high speed shear, and adds remaining water, shears about half an hour, forms water bag
The aqueous emulsion of oil type.The aqueous emulsion of the Pesticidal combination containing Ketek and emamectin benzoate is obtained.
Embodiment 3
50 parts of shitosans are taken, 2 parts of H are added2O2, deionized water, control cumulative volume for 5mL, microwave power be 460W, process 3h,
Bian intermittent-heatings, microwave action, just with cooling water cooling, is dissolved after cooling per 0.5min with 2% acetic acid solution.Shitosan passes through
After microwave viscosity reduction, chitosan oligosaccharide is prepared with the chitosan enzyme enzymolysis of selectivity, 45 DEG C of reaction temperature during controlled enzymatic hydrolysis, pH controls
It is 5.8, concentration of substrate 3%, enzyme addition lOU/g substrates, enzymolysis time 300min, you can obtain the chitosan oligosaccharide of high-purity.
The chitosan oligosaccharide that will be obtained is 0.006%% dilution by the percentage by weight that chitosan oligosaccharide accounts for the composition pesticide, is obtained
Composition solution containing chitosan oligosaccharide.Composition be can be made into water dispersible granules.
The composition solution 0.0002g of chitosan oligosaccharide, emamectin benzoate 10g, sodium lignin sulfonate 6g, spaonin powder 6g, citric acid 2g,
White carbon 74g.Ketek, emamectin benzoate and sodium lignin sulfonate, spaonin powder, citric acid and white carbon are well mixed, are used
Micro jet is crushed, through mediating, be subsequently adding in fluidized-bed granulation dryer granulated, dried, sieve after through taking
Sample is analyzed, and the water dispersible granules of the Pesticidal combination containing Ketek and emamectin benzoate of the present invention are obtained.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
It is corresponding to change and deformation, and all these change and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (4)
1. a kind of for reducing the chitosan oligosaccharide composition that agricultural chemicals is remained in crop, it is characterised in that：
Described composition, it is characterised in that said composition can be made into suspending agent, aqueous emulsion, microemulsion, missible oil, wettable powder
Or water dispersible granules；Described composition contains composition solution 0.0001-0.0002 parts of chitosan oligosaccharide, emamectin benzoate per 100g
1-2 parts, sodium lignin sulfonate 1-6 parts, ethylene glycol 1-3 parts, Chlorphenesin 1-8 parts, silicone oil 1g, water surplus are complemented to
100g。
2. a kind of preparation method for reducing the chitosan oligosaccharide of the chitosan oligosaccharide composition that agricultural chemicals is remained in crop, its feature exists
In：50 parts of shitosans are taken, 2-6 parts of H is added2O2, deionized water, control cumulative volume for 5mL, microwave power be 460W, process 3h,
Bian intermittent-heatings, microwave action, just with cooling water cooling, is dissolved after cooling per 0.5min with 2% acetic acid solution.Shitosan passes through
After microwave viscosity reduction, chitosan oligosaccharide is prepared with the chitosan enzyme enzymolysis of selectivity, 45-50 DEG C of reaction temperature during controlled enzymatic hydrolysis, pH
It is controlled to 5.0-7.5, concentration of substrate 3%, enzyme addition lOU/g substrates, enzymolysis time 200-300min, you can obtain high-purity
Chitosan oligosaccharide.
3. according to claim 1 a kind of for reducing the chitosan oligosaccharide composition that agricultural chemicals is remained in crop, its feature exists
In：The percentage by weight that chitosan oligosaccharide accounts for the composition pesticide is 0.004%-0.008%.
4. according to claim 1 a kind of for reducing the chitosan oligosaccharide composition that agricultural chemicals is remained in crop, its feature exists
In：In a kind of preparation method for reducing the chitosan oligosaccharide of the chitosan oligosaccharide composition that agricultural chemicals is remained in crop, it is preferred that add
2 parts of H2O2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611257582.7A CN106665577A (en) | 2016-12-30 | 2016-12-30 | Chitooligo saccharide composition for reducing pesticide residues in crops |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611257582.7A CN106665577A (en) | 2016-12-30 | 2016-12-30 | Chitooligo saccharide composition for reducing pesticide residues in crops |
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| CN106665577A true CN106665577A (en) | 2017-05-17 |
Family
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| CN201611257582.7A Pending CN106665577A (en) | 2016-12-30 | 2016-12-30 | Chitooligo saccharide composition for reducing pesticide residues in crops |
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Citations (9)
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|---|---|---|---|---|
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