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CN109169649A - A method of insecticide is prepared by fermenting raw materials of Azalea pontica - Google Patents

A method of insecticide is prepared by fermenting raw materials of Azalea pontica Download PDF

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Publication number
CN109169649A
CN109169649A CN201810899648.5A CN201810899648A CN109169649A CN 109169649 A CN109169649 A CN 109169649A CN 201810899648 A CN201810899648 A CN 201810899648A CN 109169649 A CN109169649 A CN 109169649A
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rhododendron
fermentation
raw material
extraction
liquid
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Inventor
郝之奎
郝玉坤
高影
刘学峰
廖祥儒
万欣慧
王含露
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Taizhou Vocational and Technical College
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Taizhou Vocational and Technical College
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N65/00Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N25/00Biocides, 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
    • A01N25/12Powders or granules
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N65/00Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A01N65/08Magnoliopsida [dicotyledons]
    • A01N65/16Ericaceae [Heath or Blueberry family], e.g. rhododendron, arbutus, pieris, cranberry or bilberry
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Plant Pathology (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Agronomy & Crop Science (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Mycology (AREA)
  • Natural Medicines & Medicinal Plants (AREA)
  • Pest Control & Pesticides (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

本发明公开了一种以黄杜鹃为原料发酵制备杀虫剂的方法,包括以下步骤:(1)原料处理:将黄杜鹃洗净,熏蒸软化后打浆成黄杜鹃浆液,同时发酵罐清洗干净灭菌;(2)酶解:黄杜鹃浆液置于发酵罐中并向其中添加纤维素酶酶解,得到酶解液;(3)发酵:加入枯草芽孢杆菌种子液,发酵过滤得到发酵液;(4)萃取:发酵液转移至萃取罐中,加入氯仿进行萃取,萃取完成后升温蒸馏将氯仿分离得到萃取液;(5)乳化制粉:向萃取液加入乳化剂,加入淀粉、分散剂和肥皂水充分混合后进行粉碎筛选,得到杀虫剂粉剂。本发明提供了一种对农业害虫具有较好的杀灭作用的杀虫剂的制备方法,该方法将黄杜鹃酶解后使用枯草芽孢杆菌发酵,获得就有杀虫效能的活性物质。The invention discloses a method for preparing pesticides by fermentation using Rhododendron as a raw material. Bacteria; (2) Enzymolysis: Rhododendron rhododendron slurry is placed in a fermenter and adds cellulase enzymolysis therein to obtain an enzymolysis solution; (3) Fermentation: add Bacillus subtilis seed liquid, and ferment and filter to obtain a fermented liquid; ( 4) Extraction: the fermented liquid is transferred to the extraction tank, and chloroform is added for extraction. After the extraction is completed, the chloroform is separated by heating and distillation to obtain an extract; (5) Emulsifying and powdering: adding an emulsifier to the extract, adding starch, a dispersant and soap After the water is fully mixed, it is crushed and screened to obtain the pesticide powder. The invention provides a preparation method of an insecticide with good killing effect on agricultural pests. In the method, the Rhododendron azalea is enzymatically hydrolyzed and then fermented with Bacillus subtilis to obtain an active substance with insecticidal effect.

Description

A method of insecticide is prepared by fermenting raw materials of Azalea pontica
Technical field
It the present invention relates to the use of the technical field that biofermentation prepares insecticide, in particular to one kind is using Azalea pontica as raw material The method that fermentation prepares insecticide.
Background technique
Azalea pontica is Ericaceae Genus Rhododendron machaka, and high 0.5-2m, branch is sparse, and branch is upright, close grey when young White pubescence and thin bristle.Leaf papery, oblong to long round shape lanceolar, long 5-11cm, wide 1.5-3.5cm, apex is blunt, has short Tip, base portion wedge shape, edge have eyelashes, when young above by micro- pubescence, below it is close by canescence pubescence, it is rigid by yellowish-brown along middle arteries Hair, middle arteries and lateral vein protrusion, the long 2-6mm of petiole, by pubescence and a small number of bristles, total shape umbel basidixed spends up to 13, first Hua Houye is opened simultaneously with leaf, and the long 1-2.5cm of bennet, by micro- pubescence and thin bristle, calyx lobes is small, crenation, by micro- soft Hair and setiform eyelashes, the wealthy infundibulate of corolla, long 4.5cm, diameter 5-6cm, yellow or golden yellow, inside there is peony spot, flower It is gradually narrow to base portion to be preced with pipe, cylindric, long 2.6cm, outside is by micro- pubescence, sliver 5, ellipse or ovate oblong, long 2.8cm, Outside is by micro- pubescence, and stamen 5, Length discrepancy, long to be no more than corolla, filigree is flat, and by micro- pubescence below middle part, ovary is coniform, Long 4mm, close by canescence pubescence and thin bristle, style is up to 6 centimetres, hairless.The coniform oblong of capsule, it is 2.5-3.5 lis long Rice, has 5 longitudinal ribs, by micro- pubescence and thin bristle.
Azalea pontica is abounded in Hunan, Guangdong, Guangxi, one band of Sichuan, Guizhou and Yunnan, is easy to acquire, available as medicinal material In treatment of arthritis, traumatic injury etc., but containing rib andromedotoxin and Chinese photinia element in Azalea pontica, chloroform extract is to a variety of important Agricultural pests have stronger tag and antifeedant activity.Thus it can be used for preparing botanical pesticide.But traditional vegetalitas is killed Worm agent is mostly used organic solvent or decocts to extract, and being unfavorable for energy conservation also has biggish environmental risk, also influences the stabilization of active material Property even lose active material, and increase cost and make development and application difficulty larger, function and effect are slow, therefore give plant source The research and development and production of insecticide bring huge financial difficulties.
Summary of the invention
It is an object of the invention to: in view of the above problems, providing a kind of pair of agricultural pests has preferable kill Effect, the method for producing insecticide of the environment friendly and pollution-free energy and labour saving of production method, in addition to this, this method digests Azalea pontica It is fermented afterwards using plant growth-promoting bacteria, the extraction of favorable activity substance avoids substance from inactivating, and is extracted and is extracted in Azalea pontica using chloroform Active principle, further increase the killing of the insecticide.
In order to achieve the above-mentioned object of the invention, The technical solution adopted by the invention is as follows:
A method of insecticide is prepared by fermenting raw materials of Azalea pontica, comprising the following steps:
(1) feedstock processing: Azalea pontica is cleaned, and after the stifling softening of vapor, homogeneous forms yellow Du after being beaten Cuckoo slurries, at the same fermentor clean up sterilizing it is spare;
(2) it digests: Azalea pontica slurries obtained in step (1) being placed in fermentor, and add cellulase thereto It stirs evenly and is digested, obtain enzymolysis liquid;
(3) ferment: bacillus subtilis bacterium solution is added in the enzymolysis liquid in step (2), mixes and is sealed by fermentation after pressurization, filtering Obtain fermentation liquid;
(4) it extracts: fermentation liquid obtained in step (3) is transferred in extractor, chloroform is added and is extracted, has extracted It is distilled at rear heating and separates chloroform, until there is no substances to distill, remaining is extract liquor;
(5) emulsify powder processed: emulsifier is added in the extract liquor obtained to step (4), reacts 6~8h while stirring, is added and forms sediment Powder, dispersing agent and suds carry out crushing and screening after being sufficiently mixed, and obtain insecticide pulvis.
Further, in step (1), the vapor stifling time is 15~30min, and the fermentor sterilizing is Carry out 121 DEG C of 20~30min of high temperature sterilization.
Further, in step (2), the enzyme activity of the cellulase is 18000U/g, the enzymolysis time is 35~ 45min。
Further, the additive amount of the bacillus subtilis bacterium solution is 2%, the bacteria containing amount in the bacillus subtilis bacterium solution For 30~5,000,000,000/ml.
Further, in step (3), the pressure of the pressurization is 0.5~1MPa, and the fermentation temperature is 35~45 DEG C, fermentation time is 3~4 days.
Further, in step (4), the heating vapo(u)rizing temperature is 60~62 DEG C.
Further, the emulsifier is the one or more of lanolin fatty acid, beeswax or lecithin, and emulsifier additive amount is institute State the 8~15% of extract liquor.
Further, the starch is cornstarch and tapioca with the mixture of 1:1, and the additional amount of starch is 180 ~280 parts.
Further, the dispersing agent is microcrystalline wax, and the additive amount for changing dispersing agent is 1~8 part, the sieve of the screening Mesh number is 80~100 mesh.
The present invention ferments Azalea pontica as Promoting bacteria to extract effective active composition, not only by using bacillus subtilis Be conducive to the extraction of bioactive substance, and due in fermentation process without organic solvent and prolonged high-temperature process mistake Journey does not easily cause the inactivation of effective component active material, advantageously ensures that the activity of the effective component of each raw material.Contain in Azalea pontica You andromedotoxin and Chinese photinia element have stronger tag and antifeedant activity , andromedotoxin and Chinese photinia to a variety of important agricultural insects Element includes Rhodomollein-Ⅲ, rhodojaponinⅢ, grayanotoxine Ⅲ, rhodojaponin III and mountain laurel terpene alcohol, these substances Chloroform recovery can be passed through.Azalea pontica has strong toxicity to agricultural insect, mainly due in Azalea pontica rhodojaponinⅢ, Grayanotoxin and mountain laurel toxin have antifeedant activity to the larva of colorado potato bug and Spodopterafrugiperda, wherein Rhododendron molle poison The effect of element III is most significant.When contacting insect cuticle, it can be invaded in polypide by stomata and nervous system is made to be poisoned, if by Insect eats, then is poisoned via digestive system, with fumigant using when can by stomata invade polypide reach desinsection Purpose.
In conclusion by adopting the above-described technical solution, having the advantages that
(1) present invention in first by Azalea pontica fumigate it is soft after fermenting, be conducive to Azalea pontica release aromatic substance, and It absorbs enough moisture to be easy to be beaten, recycles bacillus subtilis that Azalea pontica high pressure is fermented, make the small molecule object in Azalea pontica Matter sufficiently releases, and is further extracted by chloroform and proposes Azalea pontica Zhong andromedotoxin and the extraction of Chinese photinia element, distilled Pulvis insecticide is made after purification, the concentration of pest lethal substance can be made higher by purification by liquid extraction, pulvis is made convenient for spray Being sprinkled upon on crops makes it contact agricultural pests or achieve the purpose that kill pest after being eaten by insect.
(2) softening is cooked by steam in the present invention and high pressure fermentation improves the fermentation rate of Azalea pontica, and in ingredient It is upper that the active insecticidal components of Azalea pontica are prepared into pulvis by addition starch, dispersing agent and suds, it is easy when sprinkling It in being adhered on plant, and is not easy to be walked by rain drop erosion, and raw material sources used in the present invention are extensive, cheap, preparation Method is simple, economic and environment-friendly, has preferable economic benefit, can produce extensively.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, preferred embodiment is enumerated below, to this hair Bright further description.However, it is necessary to illustrate, many details listed in specification are used for the purpose of making reader to this The one or more aspects of invention have a thorough explanation, also may be implemented even without these specific details of the invention These aspects.
Embodiment 1
A method of insecticide is prepared by fermenting raw materials of Azalea pontica, comprising the following steps:
(1) feedstock processing: Azalea pontica is cleaned, and after the stifling softening of vapor, homogeneous forms yellow Du after being beaten Cuckoo slurries, while fermentor cleans up that sterilizing is spare, the vapor stifling time is 15min, the fermentor sterilizing for into 121 DEG C of row of high temperature sterilization 20min.
(2) it digests: Azalea pontica slurries obtained in step (1) being placed in fermentor, and add cellulase thereto It stirs evenly and is digested, obtain enzymolysis liquid, the enzyme activity of cellulase is 18000U/g, and the enzymolysis time is 35min;
(3) ferment: bacillus subtilis bacterium solution, the additive amount of bacillus subtilis bacterium solution is added in the enzymolysis liquid in step (2) It is 2%, the bacteria containing amount in the bacillus subtilis bacterium solution is 3,000,000,000/ml, mixes and is sealed by fermentation after pressurization, and the pressure of pressurization is 0.5MPa, the fermentation temperature are 35 DEG C, and fermentation time is 3 days, and fermentation liquid is obtained by filtration;
(4) it extracts: fermentation liquid obtained in step (3) is transferred in extractor, chloroform is added and is extracted, has extracted It is distilled at rear heating and separates chloroform, heating vapo(u)rizing temperature is 60 DEG C, until there is no substances to distill, it is remaining for extraction Liquid;
(5) emulsify powder processed: emulsifier is added in the extract liquor obtained to step (4), reacts 6~8h while stirring, is added and forms sediment Powder, dispersing agent and suds carry out crushing and screening after being sufficiently mixed, and obtain insecticide pulvis, emulsifier be lanolin fatty acid, beeswax or Lecithin it is one or more, emulsifier additive amount is the 8% of the extract liquor, and starch is cornstarch and tapioca with 1: 1 mixture, the additional amount of starch are 180 parts, and dispersing agent is microcrystalline wax, and the additive amount for changing dispersing agent is 1 part, the screening Sieve mesh number be 80 mesh.
Embodiment 2
A method of insecticide is prepared by fermenting raw materials of Azalea pontica, comprising the following steps:
(1) feedstock processing: Azalea pontica is cleaned, and after the stifling softening of vapor, homogeneous forms yellow Du after being beaten Cuckoo slurries, while fermentor cleans up that sterilizing is spare, the vapor stifling time is 30min, the fermentor sterilizing for into 121 DEG C of row of high temperature sterilization 30min.
(2) it digests: Azalea pontica slurries obtained in step (1) being placed in fermentor, and add cellulase thereto It stirs evenly and is digested, obtain enzymolysis liquid, the enzyme activity of cellulase is 18000U/g, and the enzymolysis time is 45min;
(3) ferment: bacillus subtilis bacterium solution, the additive amount of bacillus subtilis bacterium solution is added in the enzymolysis liquid in step (2) It is 2%, the bacteria containing amount in the bacillus subtilis bacterium solution is 5,000,000,000/ml, mixes and is sealed by fermentation after pressurization, and the pressure of pressurization is 1MPa, the fermentation temperature are 37 DEG C, and fermentation time is 4 days, and fermentation liquid is obtained by filtration;
(4) it extracts: fermentation liquid obtained in step (3) is transferred in extractor, chloroform is added and is extracted, has extracted It is distilled at rear heating and separates chloroform, heating vapo(u)rizing temperature is 62 DEG C, until there is no substances to distill, it is remaining for extraction Liquid;
(5) emulsify powder processed: emulsifier is added in the extract liquor obtained to step (4), reacts 6~8h while stirring, is added and forms sediment Powder, dispersing agent and suds carry out crushing and screening after being sufficiently mixed, and obtain insecticide pulvis, emulsifier be lanolin fatty acid, beeswax or Lecithin it is one or more, emulsifier additive amount is the 15% of the extract liquor, starch be cornstarch and tapioca with The mixture of 1:1, the additional amount of starch are 280 parts, and dispersing agent is microcrystalline wax, and the additive amount for changing dispersing agent is 8 parts, the sieve The sieve mesh number of choosing is 100 mesh.
Embodiment 3
A method of insecticide is prepared by fermenting raw materials of Azalea pontica, comprising the following steps:
(1) feedstock processing: Azalea pontica is cleaned, and after the stifling softening of vapor, homogeneous forms yellow Du after being beaten Cuckoo slurries, while fermentor cleans up that sterilizing is spare, the vapor stifling time is 25min, the fermentor sterilizing for into 121 DEG C of row of high temperature sterilization 25min.
(2) it digests: Azalea pontica slurries obtained in step (1) being placed in fermentor, and add cellulase thereto It stirs evenly and is digested, obtain enzymolysis liquid, the enzyme activity of cellulase is 18000U/g, and the enzymolysis time is 40min;
(3) ferment: bacillus subtilis bacterium solution, the additive amount of bacillus subtilis bacterium solution is added in the enzymolysis liquid in step (2) It is 2%, the bacteria containing amount in the bacillus subtilis bacterium solution is 4,000,000,000/ml, mixes and is sealed by fermentation after pressurization, and the pressure of pressurization is 0.8MPa, the fermentation temperature are 40 DEG C, and fermentation time is 3~4 days, and fermentation liquid is obtained by filtration;
(4) it extracts: fermentation liquid obtained in step (3) is transferred in extractor, chloroform is added and is extracted, has extracted It is distilled at rear heating and separates chloroform, heating vapo(u)rizing temperature is 61 DEG C, until there is no substances to distill, it is remaining for extraction Liquid;
(5) emulsify powder processed: emulsifier is added in the extract liquor obtained to step (4), reacts 7h while stirring, be added starch, Dispersing agent and suds carry out crushing and screening after being sufficiently mixed, and obtain insecticide pulvis, and emulsifier is lanolin fatty acid, beeswax or lecithin Rouge it is one or more, emulsifier additive amount is the 8~15% of the extract liquor, and starch is cornstarch and tapioca with 1: 1 mixture, the additional amount of starch are 250 parts, and dispersing agent is microcrystalline wax, and the additive amount for changing dispersing agent is 5 parts, the screening Sieve mesh number be 90 mesh.
Embodiment 4
A method of insecticide is prepared by fermenting raw materials of Azalea pontica, comprising the following steps:
(1) feedstock processing: Azalea pontica is cleaned, and after the stifling softening of vapor, homogeneous forms yellow Du after being beaten Cuckoo slurries, while fermentor cleans up that sterilizing is spare, the vapor stifling time is 18min, the fermentor sterilizing for into 121 DEG C of row of high temperature sterilization 22min.
(2) it digests: Azalea pontica slurries obtained in step (1) being placed in fermentor, and add cellulase thereto It stirs evenly and is digested, obtain enzymolysis liquid, the enzyme activity of cellulase is 18000U/g, and the enzymolysis time is 38min;
(3) ferment: bacillus subtilis bacterium solution, the additive amount of bacillus subtilis bacterium solution is added in the enzymolysis liquid in step (2) It is 2%, the bacteria containing amount in the bacillus subtilis bacterium solution is 3,500,000,000/ml, mixes and is sealed by fermentation after pressurization, and the pressure of pressurization is 0.6MPa, the fermentation temperature are 42 DEG C, and fermentation time is 3~4 days, and fermentation liquid is obtained by filtration;
(4) it extracts: fermentation liquid obtained in step (3) is transferred in extractor, chloroform is added and is extracted, has extracted It is distilled at rear heating and separates chloroform, heating vapo(u)rizing temperature is 60 DEG C, until there is no substances to distill, it is remaining for extraction Liquid;
(5) emulsify powder processed: emulsifier is added in the extract liquor obtained to step (4), reacts 6~8h while stirring, is added and forms sediment Powder, dispersing agent and suds carry out crushing and screening after being sufficiently mixed, and obtain insecticide pulvis, emulsifier be lanolin fatty acid, beeswax or Lecithin it is one or more, emulsifier additive amount is the 10% of the extract liquor, starch be cornstarch and tapioca with The mixture of 1:1, the additional amount of starch are 200 parts, and dispersing agent is microcrystalline wax, and the additive amount for changing dispersing agent is 3 parts, the sieve The sieve mesh number of choosing is 85 mesh.
Embodiment 5
A method of insecticide is prepared by fermenting raw materials of Azalea pontica, comprising the following steps:
(1) feedstock processing: Azalea pontica is cleaned, and after the stifling softening of vapor, homogeneous forms yellow Du after being beaten Cuckoo slurries, while fermentor cleans up that sterilizing is spare, the vapor stifling time is 25min, the fermentor sterilizing for into 121 DEG C of row of high temperature sterilization 25min.
(2) it digests: Azalea pontica slurries obtained in step (1) being placed in fermentor, and add cellulase thereto It stirs evenly and is digested, obtain enzymolysis liquid, the enzyme activity of cellulase is 18000U/g, and the enzymolysis time is 40min;
(3) ferment: bacillus subtilis bacterium solution, the additive amount of bacillus subtilis bacterium solution is added in the enzymolysis liquid in step (2) It is 2%, the bacteria containing amount in the bacillus subtilis bacterium solution is 4,500,000,000/ml, mixes and is sealed by fermentation after pressurization, and the pressure of pressurization is 0.8MPa, the fermentation temperature are 45 DEG C, and fermentation time is 4 days, and fermentation liquid is obtained by filtration;
(4) it extracts: fermentation liquid obtained in step (3) is transferred in extractor, chloroform is added and is extracted, has extracted It is distilled at rear heating and separates chloroform, heating vapo(u)rizing temperature is 62 DEG C, until there is no substances to distill, it is remaining for extraction Liquid;
(5) emulsify powder processed: emulsifier is added in the extract liquor obtained to step (4), reacts 7h while stirring, be added starch, Dispersing agent and suds carry out crushing and screening after being sufficiently mixed, and obtain insecticide pulvis, and emulsifier is lanolin fatty acid, beeswax or lecithin Rouge it is one or more, emulsifier additive amount is the 12% of the extract liquor, and starch is cornstarch and tapioca with 1:1's Mixture, the additional amount of starch are 250 parts, and dispersing agent is microcrystalline wax, and the additive amount for changing dispersing agent is 6 parts, the screening Sieve mesh number is 90 mesh.
Embodiment 6
It is directly digested after Azalea pontica is cleaned, not implementation steps (1), other implement consistent with embodiment 3.
Embodiment 7
The fermentation that Azalea pontica implementation steps (1) are directly carried out to step (3) afterwards, without the enzymatic hydrolysis of step (2), other realities It is consistent to grant embodiment 3.
Embodiment 8
After Azalea pontica implementation steps (1)~step (3), other without step (4) are implemented with embodiment 3 unanimously.
Embodiment 9
Insecticide prepared in 1~embodiment of embodiment 8 in the present invention is subjected to insect killing effect test.
Specific test is as follows: it is 100 a to catch back cabbage butterfly, prodenia litura, Ostrinia furnacalis and diamondback moth in field, distinguishes It being placed in transparent glass tube, glass jar both ends open is sealed using gauze, it is put into 5 dish leafs in each glass tube, number 1~8, Dish leaf is stirred respectively and uniformly sprays the insecticide of the preparation of 1~embodiment of embodiment 8, and is lived glass mouthpiece cover using gauze, is seen Examine the death condition of pest in glass jar, and after 48h simulate nature blowing rain carry out being blown into gentle breeze and with 200ml/ The flow of min sprays tap water 10min, the Mortality of insect after statistics spray after 72h, and every group of experiment in triplicate and is averaging Value, the experimental results are shown inthe following table:
As seen from the above table, only implement the insecticide desinsection prepared fully according to test method of the invention in the present invention Effect is good, fully according to step of the invention using the insecticide for not being both experiment parameter preparation in 1~embodiment of embodiment 5, Insecticidal effect is all fine, does not have implementation steps (1) in embodiment 6, i.e., Azalea pontica is not cooked mashing, directly digested, The active material being unfavorable in Azalea pontica discharges, and is not digested in embodiment 7, directly carries out fermentation and also results in active matter Matter release not exclusively, do not extracted in two embodiments 8, cause preparation insecticide in effective component concentration it is low, cause to kill Worm effect weakens significantly, so the insecticide for implementing preparation completely fully according to the step in the present invention is used for the pest of crops Prevention and treatment, with the fast advantage of insecticide efficiency.
Embodiment 10
Insecticide obtained in 1~embodiment of embodiment 8 carry out the Related Component test of desinsection, the chlorine of Azalea pontica It mainly include Rhodomollein-Ⅲ, rhodojaponinⅢ, grayanotoxine Ⅲ, rhodojaponin III and mountain laurel terpene in imitative extract liquor Alcohol, wherein rhodojaponinⅢ is the main lethal ingredient of insect, tests and calculates extract liquor in 1~embodiment of embodiment 8 Recovery rate and rhodojaponinⅢ extraction efficiency, the recovery rate of extract liquor are the mass ratio that extract liquor accounts for raw material Azalea pontica, and make a noise sheep Flower toxin III then detects its content in extract liquor by high performance liquid chromatography evaporative light-scattering detection method, wherein embodiment 8 Be content of the rhodojaponinⅢ in fermentation liquid, data are as shown in the table:
Recovery rate/% of extract liquor RhodojaponinⅢ content/%
Embodiment 1 1.83 11.56
Embodiment 2 1.65 12.41
Embodiment 3 1.75 10.98
Embodiment 4 1.76 12.03
Embodiment 5 1.81 11.53
Embodiment 6 1.23 8.65
Embodiment 7 0.89 5.49
Embodiment 8 0 0.56
As seen from the above table, implement in 1~embodiment of embodiment 5 fully according to all steps in the present invention, extract It is more to extract liquid hold-up, and the content of rhodojaponinⅢ is also more, insecticide effect is good.
In summary embodiment, only completely through the invention in the insecticide for preparing of all steps could utilize Huang Cuckoo prepares the insecticide of effective powerful, and this method is scientific and reasonable, easy to accomplish, can be widely popularized.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (9)

1.一种以黄杜鹃为原料发酵制备杀虫剂的方法,其特征在于:包括以下步骤:1. a method for preparing pesticide by fermentation of raw material with Rhododendron azalea, is characterized in that: may further comprise the steps: (1)原料处理:将黄杜鹃洗净,通过水蒸气熏蒸软化后,进行打浆后均质形成黄杜鹃浆液,同时发酵罐清洗干净灭菌备用;(1) Raw material treatment: wash the Rhododendron rhododendron, soften it by steam fumigation, homogeneously form Rhododendron rhododendron slurry after beating, and clean and sterilize the fermenter for later use; (2)酶解:将步骤(1)中所得的黄杜鹃浆液置于发酵罐中,并向其中添加纤维素酶搅拌均匀进行酶解,得到酶解液;(2) enzymolysis: place the Rhododendron rhododendron slurry obtained in the step (1) in a fermenter, and add cellulase to it and stir to carry out enzymolysis to obtain an enzymolysis solution; (3)发酵:向步骤(2)中的酶解液加入枯草芽孢杆种子液,加压后混合密封发酵,过滤得到发酵液;(3) fermentation: adding Bacillus subtilis seed liquid to the enzymolysis liquid in step (2), mixing and sealing fermentation after pressurization, and filtering to obtain fermentation liquid; (4)萃取:将步骤(3)中得到的发酵液转移至萃取罐中,加入氯仿进行萃取,萃取完成后升温蒸馏将氯仿分离,直至不再有物质蒸馏出来,剩下的为萃取液;(4) extraction: the fermented liquid obtained in step (3) is transferred to the extraction tank, and chloroform is added for extraction, and after the extraction is completed, the chloroform is separated by warming up and distillation, until there is no material to distill out, and the remainder is the extraction liquid; (5)乳化制粉:向步骤(4)得到的萃取液加入乳化剂,边搅拌边反应6~8h,加入淀粉、分散剂和肥皂水充分混合后进行粉碎筛选,得到杀虫剂粉剂。(5) Emulsifying and powdering: adding an emulsifier to the extract obtained in step (4), reacting for 6-8 hours while stirring, adding starch, dispersant and soapy water, and thoroughly mixing, crushing and screening to obtain insecticide powder. 2.根据权利要求1所述的一种以黄杜鹃为原料发酵制备杀虫剂的方法,其特征在于:在步骤(1)中,所述水蒸气熏蒸的时间为15~30min,所述发酵罐灭菌为进行121℃的高温杀菌20~30min。2. a kind of method for preparing pesticide by fermentation with Rhododendron as raw material according to claim 1, is characterized in that: in step (1), the time of described steam fumigation is 15~30min, and described fermentation Tank sterilization is high temperature sterilization at 121°C for 20 to 30 minutes. 3.根据权利要求1所述的一种以黄杜鹃为原料发酵制备杀虫剂的方法,其特征在于:在步骤(2)中,所述纤维素酶的酶活为18000U/g,所述酶解时间为35~45min。3. a kind of method that takes Rhododendron rhododendron as raw material fermentation and prepares pesticide according to claim 1, it is characterized in that: in step (2), the enzymatic activity of described cellulase is 18000U/g, described The enzymatic hydrolysis time was 35-45 min. 4.根据权利要求1所述的一种以黄杜鹃为原料发酵制备杀虫剂的方法,其特征在于:所述枯草芽孢杆菌液的接种量为2%,所述枯草芽孢杆菌液中的含菌量为30~50亿/ml。4. a kind of method for preparing pesticide by fermentation with Rhododendron as a raw material according to claim 1, it is characterized in that: the inoculum of described Bacillus subtilis liquid is 2%, and the content of the Bacillus subtilis liquid is 2%. The amount of bacteria is 3 to 5 billion/ml. 5.根据权利要求1所述的一种以黄杜鹃为原料发酵制备杀虫剂的方法,其特征在于:在步骤(3)中,所述加压的压力为0.5~1MPa,所述发酵温度为35~45℃,发酵时间为3~4天。5. a kind of method for preparing pesticides by fermentation with Rhododendron as a raw material according to claim 1, is characterized in that: in step (3), the pressure of described pressurization is 0.5~1MPa, and described fermentation temperature The temperature is 35-45°C, and the fermentation time is 3-4 days. 6.根据权利要求1所述的一种以黄杜鹃为原料发酵制备杀虫剂的方法,其特征在于:在步骤(4)中,所述升温蒸馏温度为60~62℃。6 . The method for preparing pesticides by fermenting Rhododendron as a raw material according to claim 1 , wherein in step (4), the temperature of the temperature-raising distillation is 60-62° C. 7 . 7.根据权利要求1所述的一种以黄杜鹃为原料发酵制备杀虫剂的方法,其特征在于:所述乳化剂为羊毛酸、蜂蜡或卵磷脂的一种或多种,乳化剂添加量为所述萃取液的8~15%。7. a kind of method that takes Rhododendron rhododendron as raw material fermentation and prepares pesticide according to claim 1, it is characterized in that: described emulsifying agent is one or more of lanolinic acid, beeswax or lecithin, and emulsifying agent adds The amount is 8-15% of the extract. 8.根据权利要求1所述的一种以黄杜鹃为原料发酵制备杀虫剂的方法,其特征在于:所述淀粉为玉米淀粉和木薯淀粉以1:1的混合物,淀粉的加入量为180~280份。8. a kind of method that takes Rhododendron rhododendron as raw material and prepares pesticide by fermentation according to claim 1, it is characterized in that: described starch is the mixture of cornstarch and tapioca starch with 1:1, and the add-on of starch is 180 ~280 servings. 9.根据权利要求1所述的一种以黄杜鹃为原料发酵制备杀虫剂的方法,其特征在于:所述分散剂为微晶石蜡,改分散剂的添加量为1~8份,所述筛选的筛网目数为80~100目。9. A method for preparing pesticides by fermentation with Rhododendron as a raw material according to claim 1, wherein the dispersant is microcrystalline paraffin, and the added amount of the dispersant is 1 to 8 parts, so The mesh number of the sieve screen is 80-100 meshes.
CN201810899648.5A 2018-08-09 2018-08-09 A method of insecticide is prepared by fermenting raw materials of Azalea pontica Pending CN109169649A (en)

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Application publication date: 20190111