CN101690502B - Application of torreya essential oil in mosquito repellent - Google Patents
Application of torreya essential oil in mosquito repellent Download PDFInfo
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Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against 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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- Agricultural Chemicals And Associated Chemicals (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
The invention discloses application of torreya essential oil in a mosquito repellent. The torreya essential oil is extracted from aril of torreya. The mosquito repellent prepared from the torreya essential oil has the characteristics of good mosquito repelling effect and environmental protection.
Description
Technical field
The present invention relates to take Chinese torreya arillus and be torreya essential oil that raw material the extracts purposes in mosquito repellent product, belong to agriculture and forestry product comprehensive utilization technique field.
Background technology
Chinese torreya (Torreya grandis) is gymnosperm, and loose China fir guiding principle taxaceae (Taxaceae) Chinese torreya belongs to, the distinctive economic tree of aiphyllium ，Shi China, and Chinese torreya platymiscium belongs to gymnosperm, without real fruit.In Seed development, the pearl holder of ovule increase develops into meat arillus.Its seed drupe shape, custom claims fruit or plants Pu.Wherein Chinese torreya (Torreya grandisvar.merriii) is the cultivar of Chinese torreya, and its seed is as the edible also history of existing more than one thousand years of the treasure in dry fruit.Chinese torreya arillus accounts for the 50-60% of seed fresh weight, and Chinese torreya is really gathered by stack retting, removes arillus by hand, is the accessory substance that Chinese torreya is really processed, and when arillus is broken, can distribute strong fragrance.The people such as Zhou great Zheng separation from the carrene extraction composition of Chinese torreya arillus obtains 5 diterpene compounds, in the volatile matter (yield 17.5%) that the article that Wang Beibei delivers with Luo Jin high mountain for 2008 adopts supercritical carbon dioxide extracting to obtain, identify the constituent that 38 kinds of compositions also comprise that some are similar to rosin rosin, as dehydroabietic acid, pimaric acid, isopimaric acid methyl esters etc., in the volatile matter (yield 5.83%) that the article that Chen Zhen moral is delivered for 2003 adopts supercritical carbon dioxide extracting to obtain, identify 48 chemical compositions, mostly be monoterpene and sequiterpene, what content was the highest is citrene (16.95-33.37%) and australene (21.04-24.11%), other also have nopinene, 3-carene, kappa alkene, card butylene, the Multiple components such as terpinolene.
In addition, although a lot of plants essential oils have certain mosquito and walk quickly and keep away effect, but do not reach the level of business application, at present can be as mosquito repellent function composition application only limited several, wherein most widely used is citronella oil, eucalyptus citriodora oil, and the functional component of the two is respectively citronellal and 1, 8-Cineole, these natural mosquito repellent products are often actually rare on price compare Gao， China mainland market.On market, to adopt chemical synthetic drug be active component to more mosquito repellent product, wherein with DEET (DEET, mosquito repellent amine) and pyrethroid, is most widely used.But the medicine of chemosynthesis is easily to human body, produce harmful effect to environment, and easily make mosquito develop immunity to drugs.As in past 60 years to the nervous centralis disease of finding in the toxicological study of DEET that 25 examples cause because of excessive use, as dull, manic, headache, incoordination etc., wherein in 6 routine dead cases, having 3 examples is children.The toxicological study of pyrethroid show high dose use can cause neurotoxicity as sports coordination ability forfeiture, overacfivity, tremble, paralysis, immune system variation etc., and irritant to skin and eyes.
Natural essential oil is compared chemical synthetic drug, has that toxicity is low, the advantage such as be difficult for developing immunity to drugs.In commercial product, the concentration of citronella oil, when 5-15%, can provide the protection of 20-30min, and eucalyptus citriodora oil, when the concentration of 10-30%, can provide the protection of 2-5h.Though other a lot of essential oils have certain mosquito, walk quickly and keep away effect, do not reach the level of business application.Therefore find the natural essential oil with mosquito-repelling function, for developing safer, the effective mosquito expelling product of human body especially infant important in inhibiting.
In the research of natural products and effect, because the complexity that natural products forms, between functional component, there is the coordinate repression of varying degree, on physiologically active, there is very large difference in the natural constituents that different extracting modes obtains, essential oil (the yield 10-20% that we adopt the way of distillation to obtain to Chinese torreya arillus, clarification, transparent liquid) and supercritical carbon dioxide extracting thing (yield 6.71%, being thickness paste) composition adopts gas chromatography-mass spectrum to measure constituent, finds that the key component of the two approaches.Difference is that the former has comparative advantage with volatile monoterpene and sesquiterpenoids component, basically identical with the Chen Zhen moral report of 2003, and the latter also detects the composition of the volatility such as several diterpene and phenol, guaiacol a little less than.Up to now, there is not yet the research report of torreya essential oil mosquito repellent function.
Summary of the invention
The technical problem to be solved in the present invention is to provide the purposes of torreya essential oil, for the preparation of culicifuge.
In order to solve the problems of the technologies described above, the invention provides the application of torreya essential oil in culicifuge.
The improvement of the application as torreya essential oil of the present invention in culicifuge, torreya essential oil is for extracting by Chinese torreya fruit arillus the essential oil obtaining.This extracting method can be the way of distillation.
Torreya essential oil of the present invention, can be from cultivar Chinese torreya, or the wild Chinese torreya such as rice Chinese torreya, sesame Chinese torreya, ivory Chinese torreya, roundlet Chinese torreya, great circle Chinese torreya.
Torreya essential oil of the present invention for example, as a kind of commercially available prod (being the torreya essential oil that Zhejiang champion Food Co., Ltd produces), conventionally (yield is about the 10-20% of arillus dry powder to adopt way of distillation extraction, w/w, mass ratio), also can adopt the several different methods such as cold-press method and solvent extraction to extract.
Torreya essential oil can be used alone also can with the composite use of other mosquito repellent components, can be made into the forms such as liquid, ointment, capsule, suspension member, essential oil carrier can be selected the various ways such as vegetable oil, ointment.
During actual use, in mosquito repellent product, generally contain the torreya essential oil of 5-30% (w/w, mass ratio).
The present invention adopts torreya essential oil as the functional component of mosquito repellent product, for confirming the effect of torreya essential oil of the present invention on mosquito repellent, the essential oil that we obtain the extract of Chinese torreya arillus supercritical carbon dioxide and distillation is evaluated repellant according to the indoor harmacological effect of GB/T 17322.10-1998 agriculture chemical registration hygienic insecticide and is tested, and compare with citronella oil (production of the South Sea, Foshan City Central-South Yao Hua factory) etc., concrete method and result are as follows:
Torreya essential oil, Chinese torreya supercritical carbon dioxide extracting thing, citronella oil and absolute alcohol are configured to solution, and the mass fraction of torreya essential oil in solution is 12.5%, 25%, 50%; Chinese torreya supercritical carbon dioxide extracting thing and the citronella oil mass fraction 12.5%, 25% in solution.The arm of recommending with reference to GB/T 17322.10-1998 is put into the method for testing of mosquito cage, changes into and puts into mosquito cage once per half an hour, records effective repellent time (table 1).
Table 1 torreya essential oil, Chinese torreya supercritical carbon dioxide extracting thing and citronella oil to effective repellent time of aedes albopictus (hour, h)
| Concentration | Torreya essential oil | Chinese torreya supercritical extract | Citronella oil |
| 100％ | 7.5 | - | - |
| 50％ | 7.0 | - | - |
| 25％ | 5.0 | 0.0 | 4.5 |
| 12.5％ | 1.0 | 0.0 | 1.5 |
Result of the test shows, repelling effect and the citronella oil of torreya essential oil are suitable, but supercritical carbon dioxide extracting thing does not have anophelifuge activity.And supercritical carbon dioxide extracting thing has certain excitant to skin, there is minimal irritation pain, essential oil only has glossy phenomenon at skin surface, observes 72 hours without any discomfort sense.
Production by torreya essential oil for culicifuge has the following advantages:
1), torreya essential oil is the essential oil with mosquito repellent function extracting from natural plants; Therefore this kind of culicifuge has the feature of green, environmental protection.
2), torreya essential oil has pure and fresh pleasant fragrance, so this kind of culicifuge more easily accepted by consumer.
3), torreya essential oil, has wide range of applications without any stimulation to skin.
Embodiment
Embodiment 1, a kind of torreya essential oil mosquito expelling liquid
Torreya essential oil, mineral oil, absolute ethyl alcohol are mixed in mass ratio as solution at 1: 2: 2, obtain torreya essential oil mass fraction and be 20% mosquito expelling liquid.
This kind of mosquito expelling liquid is evenly applied to the outside baring skins such as arm, can effective mosquito-proof 4-5h.
Embodiment 2, a kind of natural herb mosquito expelling liquid
First ethanol, torreya essential oil, eucalyptus citriodora oil, citronella oil and glycerine are fully mixed into solution, then add water and mix, obtain natural herb mosquito expelling liquid; Ethanol, torreya essential oil, eucalyptus citriodora oil, citronella oil and the glycerine mass concentration in natural herb mosquito expelling liquid is respectively 42-48%, 5-7%, 0.3-0.8%, 0.1-0.25%, 0.6-0.9%.
This mosquito expelling liquid can be directly used in skin, and can reach 3-4h effective time.Performance synergy, thus make torreya essential oil under the prerequisite of lower content, still can bring into play good repelling effect.
Embodiment 3, a kind of torreya essential oil mosquito expelling plaster
Torreya essential oil is mixed in mass ratio with phenolic resins at 1: 4; at 80 ℃, stir and within 10 hours, make medicinal extract; then medicinal extract is applied to a side of nonwoven; coating layer thickness 0.1-0.2mm; the opposite side of nonwoven adopts PUR and PET film to be pasted together; PET film applies adhesive sticker outward, finally sticks release liners protective layer.
During use, remove protection sheet, mosquito expelling plaster is pasted on to the surfaces such as furniture, clothing, approach the position of the person.The effective mosquito-proof time of this mosquito expelling plaster is 5-6h, and after this effect will be successively decreased in time.
Embodiment 4, the mosquito-proof emulsion of a kind of natural herb
First, the lecithin aqueous solution of 1% (w/w) is adopted to lemon acid for adjusting pH value to 4.5, then in stirring, splash into torreya essential oil, make its mass fraction reach 30%, then continue to stir 20min.Prepare separately in addition 2% chitosan solution (10% aqueous citric acid solution, w/w).Finally, chitosan solution is splashed in stirring to the torreya essential oil emulsion of former preparation, making the chitosan solution adding is 1/2nd of former emulsion volume, finally makes mosquito-proof emulsion.
This emulsion is counted by mass fraction final composition: torreya essential oil 15%, lecithin 0.5%, citric acid 5%, shitosan 0.35%, water 79.15%.This emulsion, containing ethanol, is not faintly acid, has reduced the stimulation to skin, can directly be applied to face and wait the skin exposing for preventing bite by mosquitos, continues 3-4h in the time of effectively.
Finally, it is also to be noted that, what more than enumerate is only several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, can also have many distortion.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention, all should think protection scope of the present invention.
Claims (1)
1. the application of torreya essential oil in culicifuge, is characterized in that: the essential oil that described torreya essential oil adopts way of distillation extraction to obtain for the Chinese torreya fruit arillus by Chinese torreya;
By torreya essential oil and phenolic resins in mass ratio 1:4 mix, at 80 ℃, stir and within 10 hours, make medicinal extract, then medicinal extract is applied to a side of nonwoven, coating layer thickness 0.1-0.2mm, the opposite side of nonwoven adopts PUR and PET film to be pasted together, PET film applies adhesive sticker outward, finally sticks release liners protective layer;
During use, remove release liners protective layer, mosquito expelling plaster is pasted on to furniture, clothing surface, approach the position of the person.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910154435.0A CN101690502B (en) | 2009-10-27 | 2009-10-27 | Application of torreya essential oil in mosquito repellent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910154435.0A CN101690502B (en) | 2009-10-27 | 2009-10-27 | Application of torreya essential oil in mosquito repellent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101690502A CN101690502A (en) | 2010-04-07 |
| CN101690502B true CN101690502B (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910154435.0A Expired - Fee Related CN101690502B (en) | 2009-10-27 | 2009-10-27 | Application of torreya essential oil in mosquito repellent |
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| CN104472482B (en) * | 2014-12-30 | 2016-04-06 | 马艳荣 | A kind of toad repellent agent |
| CN105997579A (en) * | 2016-05-10 | 2016-10-12 | 中国科学院昆明植物研究所 | Mosquito repelling product with adenosma buchneroides bonati essential oil as effective component and application of mosquito repelling product |
| CN106614671B (en) * | 2016-12-28 | 2019-08-23 | 安徽紫檀科技有限公司 | Mosquito repellent liquid and preparation method thereof |
| CN106726775A (en) * | 2016-12-30 | 2017-05-31 | 东莞小猕猴户外用品有限公司 | The preparation method of outdoor book on Chinese herbal medicine mosquito-driving liquid and outdoor book on Chinese herbal medicine mosquito-driving liquid |
| CN113040073A (en) * | 2021-03-15 | 2021-06-29 | 珠海市海盟水产养殖应用研发有限公司 | Insect-repellent essential oil complexing agent for fish and shrimp and application thereof |
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2009
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| 刘浩官等.新开发天然杀虫剂长叶榧油.《福建农业科技》.1982,(第06期), * |
| 戴文圣等.我国榧树研究文献分析.《浙江林业科技》.2006,(第04期), * |
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