CN104970053A - Moso bamboo extract emulsion in water and preparation method thereof - Google Patents
Moso bamboo extract emulsion in water and preparation method thereof Download PDFInfo
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- CN104970053A CN104970053A CN201510175337.0A CN201510175337A CN104970053A CN 104970053 A CN104970053 A CN 104970053A CN 201510175337 A CN201510175337 A CN 201510175337A CN 104970053 A CN104970053 A CN 104970053A
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- mao bamboon
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- aqueous emulsion
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- bamboo extract
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Abstract
The invention relates to a moso bamboo extract emulsion in water and a preparation method thereof, belonging to the technical field of bactericides. The moso bamboo extract emulsion in water contains the following ingredients by weight: 5-15% of moso bamboo extract, 10-30% of organic solvent, 5-20% of emulsifier, 2-5% of antifreeze agent, 0.1-3% of thickener and the balance of water. The moso bamboo extract emulsion in water provided by the invention meets the requirements of pesticide formulations on quality and has good effecs in inhibiting plant pathogenic bacteria. The moso bamboo extract emulsion in water has the advantages that the raw material are readily available, the processing is simple, the cost is reduced, and the moso bamboo extract emulsion in water is environmentally safe and has bacteriostasis activity; and the moso bamboo extract emulsion in water is a botanical pesticide.
Description
Technical field
The invention belongs to bactericide technical field, be specifically related to a kind of mao bamboon extraction disinfectant aqueous emulsion preparation and preparation method thereof, be applied to the control of the diseases of garden stuff such as graw mold of tomato, tomato wilt, Botrytis cinerea, cladosporium leaf and fruit mould of tomato, sclerotinia rot of colza, apple anthracnose and pear scab.
Technical background
The problems such as the environmental pollution that Long-Time Service traditional chemical agricultural chemicals produces and food security cause the common concern of people.In crop pest control process, in the urgent need to using the nuisanceless green agricultural chemicals of low toxicity, low-residual, easily degraded.Botanical pesticide have environmentally safe, plant resources extensively, advantage that is special to non-target organism safety, the mode of action, that can not match in excellence or beauty to chemical agents such as target organisms are efficient,
Mao bamboon extract is that raw material with an organic solvent extract and obtain with Moso Bamboo Leaves, its cheap, abundance.Mao bamboon extract has stronger bactericidal action, can effectively suppress multiple malignant bacteria and fungi, be widely used in the industries such as commodity, spices, food, medicine.Be developed to a kind of botanical fungicide, with the use of alternative chemical pesticide, be conducive to polluting from Sources controlling Practice for Pesticide Residue in Agricultural Products, have a extensive future.
The auxiliary agent adopted about the aqueous emulsion of mao bamboon extract in prior art all has toxicity, is harmful to environment and human body, and the aqueous emulsion performance obtained is insuperior.
Mao bamboon extract is mixed with aqueous emulsion by the present invention, have raw material be easy to get, process simple, reduce costs, environmental pollution is little, people and animals are had no side effect, have a extensive future.
Summary of the invention
The invention discloses a kind of compound method containing mao bamboon extraction disinfectant aqueous emulsion, this agricultural chemicals has that processing is simple, raw material is easy to get, easy to use, cost is lower and to the feature such as people and animals and ecological environment security, is a kind of environmental safety botanical sterilization preparation.
The present invention adopts following technical scheme:
A kind of containing mao bamboon extraction disinfectant aqueous emulsion, it is characterized in that: the weight portion of its raw material components is: mao bamboon extract 5-15, organic solvent 10-30, emulsifier 5-20, antifreeze 2-5, thickener 0.1-3, water are surplus, total amount is 100; Each component is all in mass parts.
Described organic solvent is durene.
Described emulsifier is selected from the compound of calcium dodecyl benzene sulfonate, styryl phenyl APEO, and preferably its mass ratio is 4:5.
Described antifreeze be selected from polyethylene glycol, ethylene glycol, isopropyl alcohol, butanols, ammonium sulfate, sodium chloride, calcium chloride one or more.
Described thickener is at least one in Magnesiumaluminumsilicate, polyacrylate, carboxymethyl cellulose, yellow first glue, PAA.
The compound method of above-mentioned mao bamboon extraction disinfectant aqueous emulsion, is characterized in that: comprise the following steps:
(1) by formula rate, mao bamboon extract is dissolved in appropriate organic solvent;
(2) add a certain amount of emulsifying dispersant in phase step (1) and form homogeneous oil phase;
(3) again antifreeze, thickener are mixed formation aqueous phase,
(4) under high-speed shearing machine stirs, the aqueous phase of step (3) is added drop-wise in the oil phase that step (2) formed, and carries out emulsification with high-speed shearing machine.
Aqueous emulsion of the present invention is to cladosporium leaf and fruit mould of tomato, graw mold of tomato under water dilution 150-300 times, and apple canker, pear scab, Botrytis cinerea etc. have good preventive and therapeutic effect.
Of the present invention containing mao bamboon extract and the composite disinfectant aqueous emulsion of kresoxim-methyl, composite aqueous emulsion is homogeneous blackish green creamy liquid, decrease the content of organic solvent, the emulsifier filtered out and consumption also more reduce, decreasing the pollution to environment, is to the more harmonious botanical pesticide of environment.
Specific implementation method
Illustrate content of the present invention further below in conjunction with embodiment, but the present invention is not restricted to the scope of following embodiment.
Embodiment 1: the preparation of mao bamboon extract
Moso Bamboo Leaves is cleaned up and is placed in room-dry, pulverize with electric crusher, cross 40 mesh sieves, obtain Moso Bamboo Leaves powder.Take Moso Bamboo Leaves powder 500g in the concentrated unit extractor of extraction, add 10L95% ethanol by 20:1 (Extraction solvent/sample, ml/g), at Extracting temperature 30 DEG C, extract 2h, repeat 2 times, extract is concentrated into medicinal extract shape, the mao bamboon extract of system, preserves at 4 DEG C.
The preparation of 10% mao bamboon extract aqueous emulsion
Be configured according to the formula shown in table 2, configuration step is as follows:
(1) mao bamboon extract, organic solvent and emulsifier are uniformly mixed into oil phase;
(2) antifreeze, thickener and distilled water are uniformly mixed into aqueous phase;
(3), under high-speed shearing machine stirs, aqueous phase step (2) formed is added drop-wise in the oil phase that (1) step formed, and obtains mao bamboon extraction disinfectant aqueous emulsion, is packaged as finished product.
The formula of table 2 10% mao bamboon extract aqueous emulsion
10.7% mao bamboon extract aqueous emulsion physicochemical character measurement result
The stability of table 3 10% mao bamboon extract aqueous emulsion
As can be seen from Table 3, mao bamboon extract aqueous emulsion all technical provided by the present invention meets quality of the pharmaceutical preparations control overflow.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
The field efficacy of 10% mao bamboon extract aqueous emulsion control vegetable disease
Utilize prepared by embodiment containing mao bamboon extraction disinfectant aqueous emulsion, carry out field control effectiveness test, and with conventional 30% kresoxim-methyl suspending agent and the 0.3% matrine missible oil medicament in contrast preventing and treating gray mold at present, take clear water as blank.Test procedure is: by provided by the present invention containing after the disinfectant aqueous emulsion dilute with water 150 times of mao bamboon extract, for preventing and treating graw mold of tomato and cladosporium leaf and fruit mould of tomato.Result of the test is as shown in table 4 and table 5.
As can be seen from table 4, table 5, after dilution, what embodiment 2 provided shows with conventional medicament 30% kresoxim-methyl suspending agent and 0.3% matrine missible oil result of the test containing mao bamboon extract aqueous emulsion, when preventing and treating cladosporium leaf and fruit mould of tomato, 10% mao bamboon extract aqueous emulsion wherein after second time dispenser 7d dilute under 150 times 79.0% reached to the preventive effect of cladosporium leaf and fruit mould of tomato, higher than the 0.3% matrine missible oil (77.7%) that dosage is 200 milliliters/mu, be that the 30% kresoxim-methyl suspending agent (80.3%) of 30 milliliters/mu is lower slightly than dosage.In control graw mold of tomato, 10% mao bamboon extract aqueous emulsion 7d preventive effect after the dispenser of dilution 150 times second time reaches 70.4%, exceeding dosage is 200 milliliters of/mu 0.3% matrine missible oil (64.9%), lower than dosage 30 milliliters of/mu 30% kresoxim-methyl suspending agent (76.8%) preventive effects.
Tomato experimental field dispenser 2 " Invest, Then Investigate "s 3 times, leaf, leaf look, cane, the fruit of each treatment region tomato are all without significant difference, and this says that reagent agent is safe to tomato.Better to graw mold of tomato and cladosporium leaf and fruit mould of tomato control efficiency containing mao bamboon extraction disinfectant aqueous emulsion, chemical pesticide consumption can be reduced, alleviate the pressure of agricultural chemicals to environment.
Table 4 prevents and treats cladosporium leaf and fruit mould of tomato field experiment result containing mao bamboon extract aqueous emulsion
Table 5 is containing mao bamboon extract aqueous emulsion control graw mold of tomato field experiment result
Comparative example 1: different solvents solute effect
The screening of table 6 different solvents
As can be seen from Table 6, in selected solvent, the dissolubility of durene is the highest, and stability is the strongest, therefore selects durene as the solvent of preparation.
Comparative example 2: the screening of emulsifier
The selection of table 7 emulsifier single dose
The selection of table 8 composite emulsifier
Result shows (table 7), the emulsifying effectiveness of emulsifier single dose is all undesirable, therefore using the good 3 kinds of emulsifier of emulsifying effectiveness to carry out mixture use, the emulsifying effectiveness of calcium dodecyl benzene sulfonate and styryl phenyl APEO mixture is better as shown in Table 8.
Claims (4)
1., containing a mao bamboon extraction disinfectant aqueous emulsion, it is characterized in that: the weight portion of its raw material components is: mao bamboon extract 5-15, organic solvent 10-30, emulsifier 5-20, antifreeze 2-5, thickener 0.1-3, water are surplus, total amount is 100; Each component is all in mass parts;
Described organic solvent is durene;
Described emulsifier is selected from the compound of calcium dodecyl benzene sulfonate, styryl phenyl APEO;
Described antifreeze be selected from polyethylene glycol, ethylene glycol, isopropyl alcohol, butanols, ammonium sulfate, sodium chloride, calcium chloride one or more;
Described thickener is at least one in Magnesiumaluminumsilicate, polyacrylate, carboxymethyl cellulose, yellow first glue, PAA.
2. contain mao bamboon extraction disinfectant aqueous emulsion according to the one of claim 1, it is characterized in that: calcium dodecyl benzene sulfonate, styryl phenyl APEO mass ratio are 4:5.
3. prepare the one of claim 1 or 2 containing mao bamboon extraction disinfectant aqueous emulsion, it is characterized in that: comprise the following steps:
(1) by formula rate, mao bamboon extract is dissolved in appropriate organic solvent;
(2) add a certain amount of emulsifying dispersant in phase step (1) and form homogeneous oil phase;
(3) again antifreeze, thickener are mixed formation aqueous phase,
(4) under high-speed shearing machine stirs, the aqueous phase of step (3) is added drop-wise in the oil phase that step (2) formed, and carries out emulsification with high-speed shearing machine.
4. a kind of application containing mao bamboon extraction disinfectant aqueous emulsion of claim 1 or 2, is characterized in that, dilute with water 150-300 times, as to cladosporium leaf and fruit mould of tomato, graw mold of tomato, and the bactericide of apple canker, pear scab or Botrytis cinerea control.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109820004A (en) * | 2019-03-08 | 2019-05-31 | 安徽农业大学 | A kind of moso bamboo extract aqueous suspension agent and its preparation method and application |
| CN111869684A (en) * | 2020-08-08 | 2020-11-03 | 太原学院 | Aqueous emulsion of star anise extract and preparation method and application thereof |
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| CN104222179A (en) * | 2014-09-26 | 2014-12-24 | 广西天峨五福种业有限公司 | Botanical insecticide |
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| CN101531904A (en) * | 2009-05-05 | 2009-09-16 | 国际竹藤网络中心 | Bamboo leaves extract, preparing method and purpose thereof |
| CN101611708A (en) * | 2009-07-20 | 2009-12-30 | 广东省昆虫研究所 | A kind of rotenone micro-emulsion |
| CN103651348A (en) * | 2013-12-26 | 2014-03-26 | 张掖市大弓农化有限公司 | Butralin suspension agent type herbicide and production method thereof |
| CN104222179A (en) * | 2014-09-26 | 2014-12-24 | 广西天峨五福种业有限公司 | Botanical insecticide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109820004A (en) * | 2019-03-08 | 2019-05-31 | 安徽农业大学 | A kind of moso bamboo extract aqueous suspension agent and its preparation method and application |
| CN111869684A (en) * | 2020-08-08 | 2020-11-03 | 太原学院 | Aqueous emulsion of star anise extract and preparation method and application thereof |
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| CN104970053B (en) | 2018-05-01 |
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