CN107668090A - A kind of precipice repens extract bactericide and preparation method thereof - Google Patents
A kind of precipice repens extract bactericide and preparation method thereof Download PDFInfo
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- CN107668090A CN107668090A CN201710807268.XA CN201710807268A CN107668090A CN 107668090 A CN107668090 A CN 107668090A CN 201710807268 A CN201710807268 A CN 201710807268A CN 107668090 A CN107668090 A CN 107668090A
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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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
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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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/40—Liliopsida [monocotyledons]
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Abstract
The invention discloses a kind of precipice repens extract bactericide and preparation method thereof, the precipice palm fibre bactericide is main component by precipice repens extract and is added auxiliary agent and be formulated, and dosage form is microemulsion and soluble liquid；The extract method of precipice repens extract includes：A. by 60 DEG C of broadleaf sedge root portion drying and processing, after shredding, 40 mesh sieves is crushed with plant tissue pulverizer and obtain powder；B. the coarse powder obtained by step A is minced and extracted with solvent method, the solvent used is 50~80 DEG C for 95% ethanol Extracting temperature, and extraction time is to obtain within 6~12 hours extract, and extract obtains medicinal extract through being concentrated in vacuo.Obtained bactericide not only has prevention effect to crop field Prospect on Kiwifruit Bacterial Canker, also has obvious prevention effect to Common Diseases such as tomato in plastic greenhouse gray molds, has very big application and popularization value in organic farm products production.
Description
Technical field
The invention belongs to technical field of pesticide, and in particular to a kind of agricultural chemicals and preparation, it is more particularly to a kind of to utilize plant precipice
The bactericide and its method that palm fibre prepares for raw material.
Background technology
Precipice is brown also known as wide leaf sedge, is Cyperaceae sedge platymiscium.Cyperaceae is containing saponins (saponins), tannin
(tannins), phenolic acid (phen01icacids), flavones (flavonoida), alkaloid (alkaloids) and terpene
(terpenoids) etc..The sedge that the country reported at present only has rhizoma cyperi, and rhizoma cyperi is sedge nutgrass flatsedge
Cyperusrotundus L. dry rhizome.Bitter, slight bitter, micro-sweet, it is mild-natured.There is the effect of promoting qi circulation and removing obstruction in the collateral, menstruction regulating and pain relieving.It is main
Control stagnation of QI due to depression of the liver, chest side of body wrist abdominal distention and pain, indigestion, irregular menstruation, closed dysmenorrhea.This drug effect and the drug effect phase of wide leaf sedge
Closely.What its chemical composition was mainly studied is its volatile oil.Mainly containing cyperene, the selinenes of B mono-, the cyperolones of a mono-, the cyperolones of B mono-,
L, 8 one Cineoles, limonene, the firpenes of B mono-, to a P-cymene, lauro lene, cyperolone, Soviet Union's root alcohol ethyl ester, the rotunols of a mono-, B
One rotunol.Leniently sub-argument has gone out the sitosterol of β mono-, the daucosterols of β mono-, n-Dotriacontanol, to hydroxy cinnamate to Yang Bo etc. in leaf sedge
The compounds such as acid, wherein p-Coumaric Acid also known as p-Coumaric Acid, the compound have analgesia, calm, anti-oxidant, antibacterial work
Property.But the research on wide leaf sedge agricultural active does not have also.
The content of the invention
Using plant precipice palm fibre it is raw material system invention further provides one kind on the basis of finding that precipice palm fibre has bactericidal activity
Standby bactericide and its method, without any chemical pesticide composition, to people, animal low toxicity, anti-medicine is not likely to produce using rear pathogen
Property.
To realize above-mentioned task, the present invention adopts the technical scheme that：
A kind of precipice repens extract bactericide, the active component of the bactericide is precipice repens extract, specifically, described precipice palm fibre
Extract be after broadleaf sedge root crushes through alcohol extracting, be concentrated to give.
More specifically, the temperature of alcohol extracting is 50~80 DEG C, and the time of alcohol extracting is 6~12h.
Preferably, the dosage form of described bactericide is microemulsion, and the microemulsion presses quality percentage by following raw material
Than preparing：
Precipice repens extract：20~60%, organic solvent：30~54%, surfactant：10%~30%, antifreezing agent：4
~10%, surplus is water, and the percentage by weight sum of raw material is 100%.
Preferably, the dosage form of described bactericide is soluble liquid, and described soluble liquid is by following raw material
Prepare by weight percentage：
Precipice repens extract：20%~50%, organic solvent：30~50%, surfactant：5%~15%, antifreezing agent：
4%~10%, thickener：0.2%~1%；Surplus is water, and the percentage by weight sum of raw material is 100%.
Best, described organic solvent is ethyl acetate, cyclohexanone, methyl oleate, ethanol, methanol, acetone and diformazan
One or more kinds of mixtures in base formamide；
Described surfactant is alkyl benzene sulfonate, APES class, phenethyl phenol polyoxyethylene
Ethers, phenethyl phenol polyethenoxy ether class and the like matter, the addition product of castor oil and oxirane and aralkyl phenol polyoxy
One or more kinds of mixtures in vinethene formaldehyde condensation products；
Described antifreezing agent is ethylene glycol or glycerine；
Described thickener is one kind or one kind in polyvinyl alcohol, xanthans, sodium carboxymethylcellulose and Magnesiumaluminumsilicate
Mixture above.
The preparation method of precipice repens extract bactericide, described precipice repens extract are obtained by following methods：By broadleaf sedge root
Portion crosses 40 mesh sieves after crushing and obtains powder；Powder is extracted for 75 DEG C with 95% ethanol using circumfluence method, extraction 3 times repeatedly, often
Secondary 6h obtains broadleaf sedge root portion alcohol extracts, and be concentrated under reduced pressure to obtain precipice palm fibre medicinal extract.
Further, including：
(1) deionized water is added after obtained precipice palm fibre medicinal extract is well mixed according to formula ratio adding assistant in mixture kettle,
Produce precipice palm fibre soluble liquid；
(2) by obtained precipice palm fibre medicinal extract by formula ratio and auxiliary agent in mixture kettle, mixture kettle temperature degree is 35~60 DEG C, stirring
Time is 30 minutes, is cooled down after stirring and produces precipice palm fibre microemulsion.
Advantages of the present invention is as follows：
The technology of the present invention uses the pure natural components raw materials such as plant source and mineral sources, Prospect on Kiwifruit Bacterial Canker is prevented and treated effectively,
Production process is harmless to operating personnel, will not produce poisoning and the resistance to the action of a drug after dispenser to plant, no to use limitation；With low toxicity,
Noresidue, it is environmentally safe, do not produce resistance etc. integrate effect, meet green or organic production standard requirement.Not only to crop field
Prospect on Kiwifruit Bacterial Canker has prevention effect, also has obvious prevention effect to Common Diseases such as tomato in plastic greenhouse gray molds, organic
There is very big application and popularization value in agricultural product production.
Embodiment
Applicant has found the bactericidal activity of precipice palm fibre on the basis of to having the extensive screening of the vegetable material of bacteriostatic activity, its
Extract shows higher bacteriostatic activity to plant pathogenic fungi and bacterium, and to bacteriosis in field control effectiveness test
Preventive effect is preferable, and certain protective effect is served to crop.
The preparation of broadleaf sedge root extract:
Dry broadleaf sedge root is crushed, crosses 40 mesh sieves.100kg precipices palm fibre crushed material is weighed in refluxing extraction kettle, is added
95% ethanol 300kg, 75 DEG C are heated to, extract 6h；Filtering；95% ethanol is added into filter residue and extracts secondary, filtering repeatedly；Will
Gained filtrate merges, is concentrated into 100kg three times, produces broadleaf sedge root extract.
Precipice repens extract determines to the inhibitory activity of phytopathogen:
This experiment determines inhibitory activity of the precipice repens extract to phytopathogen in vitro, experimental method and
Result of the test is as follows：
1st, for trying strain：
Cucumber anthracnose, P. capsici, botrytis cinerea, Prospect on Kiwifruit Bacterial Canker bacterium, Soft rot bacteria of Elephant taro,
There is provided by Nuisanceless Pesticide Research Service Center, Xibei Agroforestry Science and T.
2nd, test method：
Above-mentioned precipice palm fibre microemulsion is tested fungi in vitro using mycelial growth rate method, calculates and suppresses according to formula
Rate：Its bacteriostatic activity to pathogen is tested with inhibition zone method to bacterium.
3rd, result of the test
Precipice palm fibre microemulsion is determined to 3 kinds of inhibiting rates and 2 for examination disease fungus using growth rate method and inhibition zone method
The inhibition zone of kind pathogenetic bacteria, the results are shown in Table 1.
The precipice repens extract Antifungal Activity in Vitro result of table 1
Note：Precipice repens extract is dry sample 0.1mg/mL for examination concentration.
From table 1, in vitro, under dry sample 0.1mg/mL dosage, precipice repens extract for examination pathogen to having
Certain inhibitory activity, especially to the inhibiting rate of botrytis cinerea and P. capsici more than 85%, to Kiwi berry
The antibacterial circle diameter of ulcer bacteria reaches 19.6mm, has obvious potentiality to be exploited.
Embodiment 1：The preparation of precipice palm fibre soluble liquid
Precipice repens extract 25kg is weighed, is dissolved with methanol 35kg, adds neopelex 15kg, second under agitation
Glycol 4kg, polyvinyl alcohol 0.3kg, are stirred, and 100kg is supplied with deionized water, you can obtain 100kg precipices palm fibre soluble liquid.
Embodiment 2：The preparation of precipice palm fibre microemulsion
Precipice repens extract 25kg is weighed to be dissolved in 30kg methanol, under agitation add 15kg calcium dodecyl benzene sulfonates and
5kg styrene acid APEOs, add 4kg glycerine, above solution are heated into 40 DEG C in homogenizer, high-speed stirred
Lower addition deionized water 26kg；It is added dropwise, is stirred for 45min, cools down, produce precipice palm fibre microemulsion.
Embodiment 3：Precipice palm fibre microemulsion preventing and treating graw mold of tomato field control effectiveness test
1st, reagent agent：
Precipice palm fibre microemulsion, the precipice palm fibre microemulsion in embodiment 2.
50% Boscalid WG, it is commercially available.
2nd, for studying thing：
Tomato (CucumissativusLinn.), kind are " limitless blessing 8 ".
3rd, controlling object：
Graw mold of tomato (Botrytiscinerea Pers)
4th, selection and the test process in plot are tested：
The selection in 4.1 experiment plot
This experiment is located at the progress of Yangling district of Shaanxi Province Yangchuan village township Da Zhai village booth vegetable base, is experimental field yellow soil, and pH6~
7, the content of organic matter 1%~2%, normal rich water quality management.
4.2 test process and Quarter Design
Reagent agent be precipice palm fibre microemulsion 100 ×, 300 ×, 500 ×；The Boscalid WG500 × of comparison medicament 50% and sky
The totally five kinds of processing of white control (clear water).Experimental plot is arranged using random district's groups, is 25m per plot area2, it is repeated 3 times.
4.3 application method
DX-9A knapsack hand sprayers are used using bodyguard's board, complete stool even spraying, every mu with decoction 35L in 2016
First time dispenser on May 6, second of dispenser on May 13, third time dispenser on May 20.Temperature is inclined in greenhouse during experiment
It is low, 28 DEG C of maximum temperature, 17 DEG C of minimum temperature.
4.4 investigation method
Using grab sample, take per cell at 5 points, 5 plants every, every plant of point upper, middle and lower 3 part take 1 it is representational
Compound leaf (amounts to 75 blades), and accounting for whole vanelets area percentage with every vanelets lesion area on compound leaf is classified.Note
Record investigation total number of sheets, the sick numbers of sheets at different levels.According to field, specifically a situation arises, has formulated following severity Scaling method：
0 grade：Disease-free spot；
L levels：Lesion area accounts for less than the 5% of whole leaf area；
3 grades：Lesion area accounts for the 6%~10% of whole leaf area；
5 grades：Lesion area accounts for the 11%~20% of whole leaf area；
7 grades：Lesion area accounts for the 21%~50% of whole leaf area；
9 grades：Lesion area accounts for the 5l% of whole leaf area
4.5 drug effect computational methods
Disease index=[Σ (the sick numbers of sheets at different levels × relative value of series) ÷ investigation total number of sheets × 9] × 100
Prevention effect (%)=[1- (CK0×PT1)÷(CK1×PT0)]×100
In formula：
CK0：Disease index before blank district dispenser；
CKl：Disease index after blank district dispenser；
PT0：Disease index before chemicals treatment district dispenser；
PT1：Disease index after chemicals treatment district dispenser；
5th, result and analysis：
Precipice palm fibre microemulsion preventing and treating graw mold of tomato preventive effect the results are shown in Table 2, investigate within 7 days after the palm fibre microemulsion first time dispenser of precipice,
100 times of precipice palm fibre micro emulsion dilution agent, 300 times, 500 times of preventive effect be 68.40%-76.35%, the Boscalid WG of comparison medicament 50%
The preventive effect of 500 times of dilution is 82.57%, and palm fibre microemulsion three processing preventive effects in precipice reach more than 65%, slightly below comparison medicament
Preventive effect；The preventive effect of 7 days investigation each extension rates of precipice palm fibre microemulsion increased compared to first time after second of dispenser.
The precipice palm fibre microemulsion preventing and treating graw mold of tomato preventive effect result of table 2
Embodiment 4：Precipice palm fibre soluble liquid preventing and treating Prospect on Kiwifruit Bacterial Canker field control effectiveness test
1st, test site：
Experiment is carried out in Yangling Shaanxi demonstration area Dong Bu villages Chinese gooseberry garden, and kind is " Qin Mei ", the age of tree 8 years.This area's year
700~1000mm of rainfall, 13.2 DEG C of year-round average temperature, 225 days frost-free periods, soil are loamy soil, content of organic matter 8.5g/
Kg, pH7.3, long-term applying nitrogen fertilizer, managerial skills are poor, and canker harm is serious.
2nd, test method：
Carry out starting to spray on March 5th, 2016, March 26 application of organic fertilizers, and carry out the 2nd dispenser, March 27
Sprayed 1 time at interval of 10d to May 7, while to having at morbidity, the scab of diseased plant is struck off and dips dilution painting with cotton balls again
In affected part, smearing prevention and control are carried out at any time.Precipice palm fibre aqueous emulsion medicine dilutes 100,300,500 times respectively, and sets clear water control, will be per disease
Strain sprays dose 0.5kg, sprays 5 times altogether.10 fruit trees of each cell, often processing are repeated 3 times, cell random alignment.May 14 opened
Begin to investigate and manage incidence everywhere, record morbidity strain number and occurring degree, calculate diseased plant rate, disease index and preventive effect.
The incidence of disease=diseased plant number/investigation total strain number × 100%
Disease index=and ∑ (sick level strain number × represent value of series)/(investigation total strain number × highest level numerical value) × 100
Disease index before state of an illness growth rate=(disease index before disease index-dispenser after dispenser)/dispenser
Prevention effect=(control disease refers to growth rate-processing disease and refers to growth rate)/control disease refers to growth rate
The Prospect on Kiwifruit Bacterial Canker grade scale of table 3
3rd, result and analysis：
The precipice palm fibre aqueous emulsion preventing and treating Prospect on Kiwifruit Bacterial Canker preventive effect result of table 4
Precipice palm fibre aqueous emulsion preventing and treating Prospect on Kiwifruit Bacterial Canker preventive effect the results are shown in Table 4, and preventive effect day is investigated after the palm fibre aqueous emulsion medicine of precipice, precipice palm fibre
100 times of water and milk dilution agent, 300 times, 500 times of preventive effect be 76.85-86.93%, comparison medicament agricultural streptomycin dilutes 500 times
Preventive effect be 89.87%, the processing of precipice palm fibre aqueous emulsion three preventive effects reach more than 75%, the slightly below preventive effect of comparison medicament.
Claims (7)
1. a kind of precipice repens extract bactericide, it is characterised in that the active component of the bactericide is precipice repens extract, described precipice
Repens extract is the medicinal extract being concentrated to give after broadleaf sedge root crushes through alcohol extracting.
2. repens extract bactericide in precipice as claimed in claim 1, it is characterised in that the temperature of alcohol extracting is 50~80 DEG C, alcohol extracting
Time be 6~12h.
3. repens extract bactericide in precipice as claimed in claim 1, it is characterised in that the dosage form of described bactericide is micro-
Emulsion, the microemulsion are prepared by mass percentage by following raw material：
Precipice repens extract：20%~60%, organic solvent：30%~54%, surfactant：10%~30%, antifreezing agent：
4%~10%, surplus is water, and the percentage by weight sum of raw material is 100%.
4. repens extract bactericide in precipice as claimed in claim 1, it is characterised in that the dosage form of described bactericide is can
Dissolubility liquor, described soluble liquid are prepared by following raw materials by weight：
Precipice repens extract：20%~50%, organic solvent：30~50%, surfactant：5%~15%, antifreezing agent：4%~
10%, thickener：0.2%~1%；Surplus is water, and the percentage by weight sum of raw material is 100%.
5. the precipice repens extract bactericide as described in claim 3 or 4, it is characterised in that described organic solvent is acetic acid second
One or more kinds of mixtures in ester, cyclohexanone, methyl oleate, ethanol, methanol, acetone and dimethylformamide；
Described surfactant be alkyl benzene sulfonate, APES class, phenethyl phenol polyethenoxy ether class,
Phenethyl phenol polyethenoxy ether class and the like matter, the addition product of castor oil and oxirane and aralkyl phenol polyethenoxy ether
One or more kinds of mixtures in formaldehyde condensation products；
Described antifreezing agent is ethylene glycol or glycerine；
Described thickener is the one or more in polyvinyl alcohol, xanthans, sodium carboxymethylcellulose and Magnesiumaluminumsilicate
Mixture.
6. the preparation method of the precipice repens extract bactericide described in claim 3 or 4, it is characterised in that described precipice palm fibre extraction
Thing is obtained by following methods：
40 mesh sieves are crossed after broadleaf sedge root portion is crushed and obtain powder；Powder is extracted for 75 DEG C with 95% ethanol using circumfluence method, instead
Extract 3 times again, each 6h obtains broadleaf sedge root portion alcohol extracts, and be concentrated under reduced pressure to obtain precipice palm fibre medicinal extract.
7. the preparation method of repens extract bactericide in precipice as claimed in claim 6, it is characterised in that including：
(1) deionized water is added after obtained precipice palm fibre medicinal extract is well mixed according to formula ratio adding assistant in mixture kettle, is produced
Precipice palm fibre soluble liquid；
(2) by obtained precipice palm fibre medicinal extract by formula ratio and auxiliary agent in mixture kettle, mixture kettle temperature degree is 35~60 DEG C, mixing time
For 30 minutes, cooled down after stirring and produce precipice palm fibre microemulsion.
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| KR102086854B1 (en) * | 2018-10-05 | 2020-03-11 | 대한민국 | Anti-oxidant or anti-inflammatory cosmetic compositions containing the plants extract of Cyperaceae |
| CN113068722A (en) * | 2021-04-02 | 2021-07-06 | 四川佳猕沃农业科技有限公司 | Composition for preventing and treating kiwifruit canker and application method |
| CN115067127A (en) * | 2022-07-29 | 2022-09-20 | 四川佳猕沃农业科技有限公司 | Biological control method for kiwifruit canker |
| CN115232142A (en) * | 2022-06-17 | 2022-10-25 | 西北农林科技大学 | Carassitin compound, bactericide and compound bactericide of carex compound and copper nonyl phenolsulfonate |
| CN115918685A (en) * | 2022-10-18 | 2023-04-07 | 西北农林科技大学 | Aquilaria sinensis extract bactericide and application |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102086854B1 (en) * | 2018-10-05 | 2020-03-11 | 대한민국 | Anti-oxidant or anti-inflammatory cosmetic compositions containing the plants extract of Cyperaceae |
| CN113068722A (en) * | 2021-04-02 | 2021-07-06 | 四川佳猕沃农业科技有限公司 | Composition for preventing and treating kiwifruit canker and application method |
| CN115232142A (en) * | 2022-06-17 | 2022-10-25 | 西北农林科技大学 | Carassitin compound, bactericide and compound bactericide of carex compound and copper nonyl phenolsulfonate |
| CN115067127A (en) * | 2022-07-29 | 2022-09-20 | 四川佳猕沃农业科技有限公司 | Biological control method for kiwifruit canker |
| CN115918685A (en) * | 2022-10-18 | 2023-04-07 | 西北农林科技大学 | Aquilaria sinensis extract bactericide and application |
| CN115918685B (en) * | 2022-10-18 | 2024-03-29 | 西北农林科技大学 | Bactericide with aquilaria sinensis extract and application thereof |
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| CN107668090B (en) | 2020-07-31 |
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