WO2006038320A1 - 揮散性物質の機能性の評価方法 - Google Patents
揮散性物質の機能性の評価方法 Download PDFInfo
- Publication number
- WO2006038320A1 WO2006038320A1 PCT/JP2005/003870 JP2005003870W WO2006038320A1 WO 2006038320 A1 WO2006038320 A1 WO 2006038320A1 JP 2005003870 W JP2005003870 W JP 2005003870W WO 2006038320 A1 WO2006038320 A1 WO 2006038320A1
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- WO
- WIPO (PCT)
- Prior art keywords
- volatile substance
- volatile
- breeding
- functionality
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/5005—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells
- G01N33/5008—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics
- G01N33/5082—Supracellular entities, e.g. tissue, organisms
- G01N33/5088—Supracellular entities, e.g. tissue, organisms of vertebrates
Definitions
- the present invention relates to a method for evaluating the functionality of a volatile substance. More specifically, the present invention relates to a method for evaluating the functionality of a volatile substance with high accuracy using an experimental animal.
- the conventional method of using an open breeding cage eliminates the problems of oxygen deficiency and increased temperature and humidity, but volatilized volatile substances are discharged outside the breeding cage, and the concentration of volatile substances in the atmosphere in the breeding cage
- the functionality of the volatile substance cannot be accurately evaluated because it fluctuates with the passage of breeding time.
- the volatilization rate of each volatile compound in the volatile substance is Due to the difference, the distribution of the volatile compounds mixed in the breeding cage changed over time, and the functionality of the volatile substances could not be evaluated correctly.
- Non-Patent Document 1 Mitsatsuka Tanida, Mieko Doshi, “Effects of essential oils on the momentum of mice and their volatility”, Journal of the Wood Society, Vol.31, No.5, p.409-417, 1985
- an object of the present invention is to solve the above-mentioned problems of the prior art. That is, the present invention aims to provide a method for evaluating the functionality of a volatile substance with high accuracy in vivo.
- the present inventors diligently studied to solve the above-mentioned problems.
- the air in which the volatile substance has been volatilized in advance at a predetermined concentration is supplied into the breeding room and the air in the breeding room is discharged.
- the inside of the breeding room at a certain volatile substance concentration, raising a laboratory animal in such a breeding room and observing the effect on the laboratory animal, It was found that the functionality of a substance can be evaluated with high accuracy.
- the present invention has been developed through further studies based on such knowledge.
- the present invention provides the following inventions:
- Item 1 A method for evaluating the functionality of a volatile substance
- the said evaluation method containing.
- Item 2 The evaluation method according to Item 1, wherein the volatile substance is a fragrance.
- the evaluation method of the present invention evaluates the functionality of a volatile substance.
- a volatile substance means a volatile substance under normal use conditions (normal temperature and normal pressure). That is, a substance that is volatile at room temperature.
- the volatile substance to be evaluated in the present invention may be a substance having a known structure or composition, or a substance having an unknown structure or composition.
- the volatile substance may be composed of a plurality of compounds in addition to that composed of a single compound.
- the evaluation method of the present invention is advantageous in that even if a volatile substance composed of a plurality of compounds is evaluated, the adverse effect due to the difference in the volatilization speed of each compound can be eliminated and the functionality of the volatile substance can be accurately evaluated. From this point of view, a volatile substance composed of multiple compounds can be cited as one of the suitable evaluation targets.
- a plant-derived essential oil component is specifically exemplified.
- the volatile substance is used in a state of being volatilized in advance, and therefore, even if the volatile substance has a low degree of volatilization at normal temperature and normal pressure, the experimental animal is affected.
- the volatilization concentration of the substance can be adjusted to an appreciable level, and this has the advantage that the functionality of the volatile substance can be evaluated with high accuracy. Examples include low volatility substances with a pressure of lOmmHg or less.
- volatile substances specifically, volatile substances known as fragrances, deodorant substances, bactericidal substances, insecticidal substances, insect repellent substances, sedative substances, arousal substances, etc. Can be mentioned.
- fragrances are known to have various physiological activities including an aromatherapy effect, and the method of the present invention is suitable as a method for evaluating new properties and safety of fragrances. It is. Note that a volatile substance whose functionality (use) is not known at all can be applied to the evaluation method of the present invention to evaluate the presence or degree of new functionality.
- the functionality to be evaluated is a functional characteristic that can be estimated by measuring behavioral characteristics and physiological parameters of experimental animals.
- Specific examples of such functionality include sleep promoting effects, awakening effects, diuretic effects, appetite enhancing effects, anti-allergic effects, dieting effects, digestion promoting effects, and the like.
- the experimental animal used in the evaluation method of the present invention is not particularly limited as long as it is an animal that can reflect the presence or absence and degree of functionality to be evaluated.
- Specific examples of the experimental animals include mammals such as rats, mice, rabbits, monkeys, and dogs; birds such as chickens and pigeons; And the like.
- mammals, particularly mice, rats and rabbits, are widely used as experimental animals and are preferred.
- a disease model animal or an animal improved for an experiment can be used according to the functionality to be evaluated.
- step (1) the air in which the volatile substance has been volatilized in advance at a predetermined concentration is supplied to the breeding room containing the experimental animals, and the air in the breeding room is exhausted to achieve a certain volatility.
- the experimental animal is raised in a substance concentration atmosphere.
- Air in which a volatile substance has been volatilized at a predetermined concentration (hereinafter referred to as supply air) used in this step can be prepared according to a method known or commonly used in the technical field. .
- supply air used in this step
- put a volatile substance in an amount of the desired concentration in a container with a predetermined capacity heat the container after sealing it, and completely evaporate the entire volatile substance in the container. A method is mentioned.
- the concentration of the volatile substance in the atmosphere in the breeding room is substantially maintained at the concentration of the volatile substance in the supply air. Therefore, the concentration of the volatile substance in the supply air is appropriately set based on the concentration of the volatile substance exposed to the laboratory animal.
- the oxygen content and humidity of the supply air can be appropriately adjusted within a range that does not impede the growth of experimental animals.
- Supply air can be supplied to the nursery room by using a known or conventional air supply means.
- the supply speed of the supply air into the breeding room depends on the residence time of the supply air, the type of test animal to be used, the capacity of the breeding room, the type and concentration of the volatile substance contained in the supply air, etc. Is set as appropriate.
- the residence time of the supply air is usually 0.5 to 30000 minutes, preferably 5 to 3000 minutes.
- the “supply air residence time” here is calculated as XZY, where Xml is the capacity of the breeding room and Yml / min is the supply speed of the supply air.
- the air in the breeding room is discharged together with the supply air.
- Breeding room As a method for discharging the air in the room, for example, a method of naturally discharging from the air outlet in the breeding room, a method of providing air discharging means such as an air outlet fan in the breeding room, and forcibly discharging by the means, etc. Is mentioned.
- the air discharge speed is set to the same speed as the supply speed of the supply air.
- the concentration of the volatile substance in the atmosphere in the breeding room is kept constant.
- the laboratory animal breeding temperature and feeding method are set as appropriate according to the type of animal and the purpose of evaluation.
- the functionality to be evaluated is a sleep promoting effect or awakening effect, the sleep time, momentum, electroencephalogram or electromyogram status of the experimental animal; if the functionality to be evaluated is a diuretic effect, The amount of urine excreted in the laboratory animal; if the functionality of the evaluation target is an appetite-enhancing effect, the amount of feeding of the experimental animal; if the functionality of the evaluation target is an anti-allergic effect, If the functionality to be evaluated is a diet effect, the body weight of the experimental animal;
- the breeding atmosphere of the experimental animal is maintained at a constant volatile substance concentration, so the function of the volatile substance in vivo with high accuracy. Sex can be evaluated.
- the volatile substance composed of a plurality of volatile compounds having different vapor pressures is used. Even so, a breeding room atmosphere is created that accurately reflects the composition ratio of each compound in the volatile substance so that the distribution of each volatile compound in the breeding room does not change over time. Therefore, it is possible to evaluate the functionality of volatile substances composed of multiple volatile compounds with different vapor pressures with high accuracy.
- FIG. 1 is a diagram showing the change over time in the temperature of the breeding room during the breeding period in Example 1 and Comparative Example 1.
- Fig. 2 is a graph showing changes over time in humidity in the breeding room during the breeding period in Example 1 and Comparative Example 1.
- FIG. 3 is a graph showing changes over time in the concentration of ⁇ -santalol (instrument measurement value) in the breeding room during the breeding period in Example 1 and Comparative Example 1.
- Example 1
- Sedation ' ⁇ Santalol which has a sleep effect, was evaluated as a volatile substance model for its sedation and sleep effect according to the following method.
- a Wistar male rat (1 rat) weighing 240 g is raised under the following conditions, and the time-dependent changes in the room temperature, room humidity, and ⁇ -santalol concentration in the room are measured during the breeding period. At the same time, the behavior of the rats during the breeding period was observed, and the sedative / sleeping effect of ⁇ -santalol was evaluated (Example 1). The ⁇ -santalol concentration in the breeding room was measured by gas chromatography.
- a breeder equipped with a cylindrical breeding room (capacity 17L) with an air supply port and an air discharge port was used.
- the animals were placed in the breeding room for free consumption of food and water, and the experimental animals were placed in the breeding room for 120 minutes for breeding.
- Example 1 Similarly to Example 1, during the breeding period, the time-dependent changes in the breeding room temperature, the breeding room humidity, and the ⁇ -santalol concentration in the breeding room were measured, and the behavior of the rat during the breeding period was observed (comparison). Example 1).
- Figure 1-13 shows the measurement results of temperature, humidity and ⁇ -santalol concentration in the breeding room. Shown in As can be seen from FIGS. 1 to 3, in Example 1, the temperature, humidity and ⁇ -santalol concentration in the breeding room were kept constant during the breeding period. In Comparative Example 1, as the breeding time passed, It was confirmed that the temperature, humidity and ⁇ -santalol concentration in the breeding room increased. Therefore, in Example 1, it was clear that the action of a-santalol could be accurately reflected in the rat. On the other hand, in Comparative Example 1, since the temperature and humidity change with the ⁇ -santalol concentration during the breeding period, the effect of a single santalol can be accurately reflected in the rat. confirmed.
- Table 1 shows the results of observation of rat behavior during the breeding period.
- Example 1 there was no abnormality in the behavior of the rats in the breeding room.
- Comparative Example 1 there was an abnormality in the body surface, behavior, and feeding status of the rats. It was confirmed that it was under stress.
- Example 1 since the rats had more sleep time and frequency than usual during the breeding period, it was confirmed that a-santalol had a sedative sleep effect.
- Comparative Example 1 since the behavior of rats was abnormal, a-santalol was not able to confirm the sedative sleep effect. From the above results, it was confirmed that the functionality of the volatile substance can be accurately evaluated according to the method of the present invention.
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- Life Sciences & Earth Sciences (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-289211 | 2004-09-30 | ||
| JP2004289211A JP2006105629A (ja) | 2004-09-30 | 2004-09-30 | 揮散性物質の機能性の評価方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006038320A1 true WO2006038320A1 (ja) | 2006-04-13 |
Family
ID=36142408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/003870 Ceased WO2006038320A1 (ja) | 2004-09-30 | 2005-03-07 | 揮散性物質の機能性の評価方法 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006105629A (ja) |
| WO (1) | WO2006038320A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398524A (zh) * | 2018-01-15 | 2018-08-14 | 宁波高新区鹏博科技有限公司 | 一种农药杀虫效果的检测装置 |
-
2004
- 2004-09-30 JP JP2004289211A patent/JP2006105629A/ja not_active Withdrawn
-
2005
- 2005-03-07 WO PCT/JP2005/003870 patent/WO2006038320A1/ja not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| LEE ET AL: "An HDI polyisocyanate aerosol exposure system for large-scale animal experiments", AIHA JOURNAL, vol. 64, 2003, pages 439 - 444, XP002989165 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398524A (zh) * | 2018-01-15 | 2018-08-14 | 宁波高新区鹏博科技有限公司 | 一种农药杀虫效果的检测装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006105629A (ja) | 2006-04-20 |
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