JP7173757B2 - Simulated body odor composition and evaluation method using the same - Google Patents
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Description
本発明は、擬似体臭組成物及びこれを用いる評価方法に関する。 TECHNICAL FIELD The present invention relates to a simulated body odor composition and an evaluation method using the same.
近年、スポーツする人口の増加、更に、スポーツする際に着用する衣類（例えば、化学繊維）については、汗臭や体臭が残りやすく、衣類に付着する汗臭や体臭のニオイを気にしている生活者が多くなっている。
このような体臭に対するファブリックケア製品を開発する目的で、衣類に付着・残存する体臭を再現し、スクリーニング方法を確立するための体臭モデル臭気の開発が望まれている。
In recent years, the number of people who participate in sports has increased, and the clothes worn during sports (for example, synthetic fibers) tend to retain sweat and body odors. people are increasing.
For the purpose of developing fabric care products against such body odors, it is desired to reproduce body odors that adhere to and remain on clothing, and to develop body odor model odors for establishing screening methods.
特許文献１に記載の擬似体臭組成物は、実際の汗臭、特にアポクリン腺の分泌物に由来する特有な臭気を再現しようとするものであり、腋の刺激臭に特化したものである。腋臭は体臭の要素ではあるが、腋臭以外の体幹部分をも含めた体臭を再現するものではない。
特許文献２及び３には擬似腋臭組成物が記載されているが、擬似体臭組成物ではない。
非特許文献１には、腋の下の分泌物中の酸性物質の一例として、４‐エチルオクタン酸が記載されている。
繊維製品評価技術協議会で基準となる汗臭、体臭は、アンモニア、酢酸、イソ吉草酸、ノネナールを用いているが、実衣類でこれらの組合せのみで構成される臭気はなく、総合的な体臭を再現するものではない。
The simulated body odor composition described in Patent Document 1 attempts to reproduce the actual sweat odor, particularly the peculiar odor derived from apocrine gland secretions, and is specialized for the irritating odor of the armpits. Armpit odor is an element of body odor, but it does not reproduce body odor including trunk parts other than armpit odor.
Patent Documents 2 and 3 describe simulated armpit odor compositions, but they are not simulated body odor compositions.
Non-Patent Document 1 describes 4-ethyloctanoic acid as an example of an acidic substance in armpit secretions.
Ammonia, acetic acid, isovaleric acid, and nonenal are used for sweat odor and body odor, which are the standards of the Textile Product Evaluation Technology Council. is not reproduced.
本発明は、衣類に付着・蓄積残存する体臭を忠実に再現することができる擬似体臭組成物及びこれを用いる評価方法を提供することを目的とする。 An object of the present invention is to provide a simulated body odor composition that can faithfully reproduce the body odor that adheres to, accumulates and remains on clothes, and an evaluation method using the same.
本発明者らは、上記課題を解決するために鋭意検討した結果、４‐エチルオクタン酸により、衣類に付着・蓄積残存する体臭を再現し得ることを見出した。本発明は、このような新規な知見に基づいて完成されたものである。
従って、本発明の一実施態様において、４‐エチルオクタン酸を含む擬似体臭組成物が提供される。
本発明の一実施態様によれば、擬似体臭組成物は、４‐エチルオクタン酸以外の炭素数３～１０の低級脂肪酸１種以上を更に含む。
本発明の一実施態様によれば、４‐エチルオクタン酸以外の炭素数３～１０の低級脂肪酸は、３‐メチル‐２‐ヘキセン酸及び／又はノナン酸である。
また、本発明の一実施態様において、
（Ａ）４‐エチルオクタン酸、
（Ｂ）３‐メチル‐２‐ヘキセン酸、
（Ｃ）４‐エチルオクタン酸、３‐メチル‐２‐ヘキセン酸及びノナン酸以外の、炭素数３～１０の低級脂肪酸１種以上、及び
（Ｄ）ノナン酸
を含み、（Ａ）、（Ｂ）、（Ｃ）及び（Ｄ）の質量比が、（Ａ）：（Ｂ）：（Ｃ）：（Ｄ）＝１～１０：１０～３０：１～５：１～１０である、擬似体臭組成物が提供される。
更に、本発明の一実施態様において、擬似体臭組成物を使用して擬似体臭臭気を評価する方法が提供される。
As a result of intensive studies to solve the above problems, the present inventors found that 4-ethyloctanoic acid can reproduce the body odor that adheres to, accumulates and remains on clothes. The present invention has been completed based on such novel findings.
Accordingly, in one embodiment of the present invention there is provided a body odor simulating composition comprising 4-ethyloctanoic acid.
According to one embodiment of the present invention, the simulated body odor composition further comprises one or more C3-10 lower fatty acids other than 4-ethyloctanoic acid.
According to one embodiment of the invention, the C3-C10 lower fatty acid other than 4-ethyloctanoic acid is 3-methyl-2-hexenoic acid and/or nonanoic acid.
Also, in one embodiment of the present invention,
(A) 4-ethyloctanoic acid,
(B) 3-methyl-2-hexenoic acid,
(C) one or more lower fatty acids having 3 to 10 carbon atoms other than 4-ethyloctanoic acid, 3-methyl-2-hexenoic acid and nonanoic acid, and (D) nonanoic acid, (A), (B) ), (C) and (D) in a mass ratio of (A):(B):(C):(D) = 1 to 10:10 to 30:1 to 5:1 to 10, simulated body odor A composition is provided.
Additionally, in one embodiment of the present invention, a method of evaluating body odor odor mimetic using the body odor mimetic composition is provided.
本発明の擬似体臭組成物により、衣類に付着・蓄積残存する体臭を再現し得る。 The simulated body odor composition of the present invention can reproduce the body odor that adheres to, accumulates and remains on clothing.
本発明は、衣類、特には、普段着用している肌着、Ｔシャツなど肌に直接触れる衣類に付着・蓄積残存する体臭を再現する擬似体臭組成物、及びこれを用いた臭気評価方法に関するものである。
本明細書において、「体臭」とは、肌着等の衣類の胸部や首、背面部に主に感じる比較的脂っぽい臭気のことである。また、本明細書において、「擬似体臭」とは、肌着等の衣類の胸部や首、背面部に主に感じる比較的脂っぽい臭気を擬似的に再現したものである。
なお、衣類に付着・蓄積残存する不快な臭気としては、腋臭や、汗や菌由来の非常に酸っぱい臭気もあるが、これらは本明細書に示す体臭とは異なる。
TECHNICAL FIELD The present invention relates to a simulated body odor composition that reproduces the body odor that adheres to, accumulates and remains on clothes, especially underwear that is worn everyday, T-shirts and other clothes that come into direct contact with the skin, and an odor evaluation method using the same. be.
As used herein, the term "body odor" refers to a relatively greasy odor that is mainly felt on the chest, neck, and back of clothing such as underwear. In this specification, the term "pseudo-body odor" is a quasi-reproduction of a relatively greasy odor that is mainly felt on the chest, neck, and back of clothing such as underwear.
Unpleasant odors that adhere to, accumulate and remain on clothes include armpit odors and very sour odors derived from sweat and bacteria, but these are different from the body odors described in this specification.
［４‐エチルオクタン酸：（Ａ）成分］
４‐エチルオクタン酸は、不快なニオイ成分として知られている成分であり、臭気成分としてはアニマリックな臭気をもたらすものである。本発明の擬似体臭組成物において、この成分が含まれることにより、着用後の衣類に付着・蓄積残存する体臭、特には、着用後の衣類に付着・残存する皮脂に由来する体臭の再現性が高まる。これは、４‐エチルオクタン酸が発するアニマリックな臭気が、単にその他低級脂肪酸によりもたらされる臭気にはない、衣類の布のニオイ（古着的な古めかしいニオイ）を再現するためである。
本発明の擬似体臭組成物中、４‐エチルオクタン酸の配合量は特に限定されないが、擬似体臭組成物の総質量に対して、０．０１～０．２質量％が好ましく、０．０１～０．１質量％がより好ましい。４‐エチルオクタン酸の配合量が０．０１～０．２質量％の範囲内であると、その臭気が強すぎず、より衣類に付着・残留する体臭を再現するのに適している。
[4-ethyloctanoic acid: (A) component]
4-Ethyloctanoic acid is a component known as an unpleasant odor component, and as an odor component, it produces an animal odor. By including this component in the simulated body odor composition of the present invention, the reproducibility of the body odor that adheres/accumulates and remains on clothes after wearing, particularly the body odor derived from the sebum that adheres/remains on clothes after wearing, is improved. increase. This is because the animalic odor emitted by 4-ethyloctanoic acid reproduces the odor of clothes (an old-fashioned odor of old clothes), which is not the odor caused by other lower fatty acids.
The amount of 4-ethyloctanoic acid in the simulated body odor composition of the present invention is not particularly limited, but is preferably 0.01 to 0.2% by mass, preferably 0.01 to 0.01%, based on the total mass of the simulated body odor composition. 0.1% by mass is more preferred. When the blending amount of 4-ethyloctanoic acid is within the range of 0.01 to 0.2% by mass, the odor is not too strong, and it is suitable for reproducing the body odor that adheres and remains on clothes.
［３‐メチル‐２‐ヘキセン酸：（Ｂ）成分］
３‐メチル‐２‐ヘキセン酸は、腋臭症の原因物質の研究において、古い雑巾のような脂肪酸臭をもたらす成分として知られている。３‐メチル‐２‐ヘキセン酸とグルタミンが結合した分泌物が、皮膚の細菌により分解されて臭気が発生するといわれている。このニオイは、腋臭の臭気の一部となる。
着用した衣類に付着・蓄積残存する臭気としては、炭素数３～１０の低級脂肪酸によるものが挙げられる。例えば、酢酸は汗の酸っぱいニオイであったり、イソ吉草酸も汗様の脂肪酸臭に独特のツンとした臭気が加わったもの、同様にヘキサン酸も汗っぽい脂肪酸として捉えられるようなものとして存在するが、３‐メチル‐２‐ヘキセン酸の臭気は、腋臭の臭気に似ている。本発明の擬似体臭組成物において、この成分を加えると、衣類の腋部に付着する成分の臭気の再現性を高めることになり、腋臭の要素も含む擬似体臭組成物の再現性が高まる。
本発明の擬似体臭組成物中、３‐メチル‐２‐ヘキセン酸の配合量は特に限定されないが、擬似体臭組成物の総質量に対して、０．０１～０．３質量％が好ましく、０．１～０．２質量％がより好ましい。３‐メチル‐２‐ヘキセン酸の配合量が０．０１～０．３質量％の範囲内であると、腋臭の特徴が出過ぎず、臭気のバランスよく体臭を再現し、所謂、衣類に付着・蓄積残存する脂っぽいニオイや衣類っぽさの臭気を再現する４‐エチルオクタン酸による臭気を十分に残すことができる。
[3-methyl-2-hexenoic acid: component (B)]
3-Methyl-2-hexenoic acid is known in studies of the causative agent of armpit odor as the component responsible for the fatty acid odor of old rags. It is said that 3-methyl-2-hexenoic acid and glutamine-bound secretions are decomposed by skin bacteria to generate odor. This odor becomes part of the underarm odor.
Odors that adhere to, accumulate and remain on worn clothing include those due to lower fatty acids having 3 to 10 carbon atoms. For example, acetic acid has the sour odor of sweat, isovaleric acid has a unique pungent odor added to the sweat-like fatty acid odor, and hexanoic acid also exists as a sweaty fatty acid. However, the odor of 3-methyl-2-hexenoic acid resembles that of armpit odor. When this component is added to the simulated body odor composition of the present invention, the reproducibility of the odor of the component that adheres to the armpits of clothes is enhanced, and the reproducibility of the simulated body odor composition that also contains elements of armpit odor is enhanced.
The amount of 3-methyl-2-hexenoic acid in the simulated body odor composition of the present invention is not particularly limited, but is preferably 0.01 to 0.3% by mass relative to the total weight of the simulated body odor composition, and 0 .1 to 0.2% by mass is more preferable. When the amount of 3-methyl-2-hexenoic acid is within the range of 0.01 to 0.3% by mass, the characteristics of the armpit odor are not excessive, and the body odor is reproduced in a well-balanced odor. The odor of 4-ethyloctanoic acid, which reproduces the greasy odor that accumulates and remains and the odor of clothes, can be sufficiently left.
［炭素数３～１０の低級脂肪酸：（Ｃ）成分］
炭素数３～１０の低級脂肪酸は、着用回収した肌着類より検出される臭気成分である。なお、本発明の擬似体臭組成物において、４‐エチルオクタン酸、３‐メチル‐２‐ヘキセン酸及びノナン酸も炭素数３～１０の低級脂肪酸であることから、これらの具体的成分が含まれる擬似体臭組成物中においては、炭素数３～１０の低級脂肪酸は、当該具体的成分以外のものを指す。例えば、ある態様では、炭素数３～１０の低級脂肪酸は、４‐エチルオクタン酸以外の炭素数３～１０の低級脂肪酸であり得るし、またある態様では、炭素数３～１０の低級脂肪酸は、４‐エチルオクタン酸、３‐メチル‐２‐ヘキセン酸及びノナン酸以外の炭素数３～１０の低級脂肪酸であり得る。
本発明の擬似体臭組成物において、炭素数３～１０の低級脂肪酸を１種以上配合することができる。
本発明の擬似体臭組成物に含まれ得る炭素数３～１０の低級脂肪酸の具体例としては、３‐メチル‐２‐ヘキセン酸、ノナン酸、酢酸、酪酸、イソ酪酸、イソ吉草酸、ヘキサン酸、ヘプタン酸、オクタン酸、４‐メチル‐３‐ヘキセン酸、３‐ヒドロキシ‐３‐メチルヘキサン酸、デカン酸、ペンタン酸等が挙げられるが、これらに限定されるものではない。
本発明の擬似体臭組成物中、炭素数３～１０の低級脂肪酸の配合量は特に限定されないが、擬似体臭組成物の総質量に対して、０．１質量％以下が好ましく、０．０５質量％以下がより好ましい。
[Lower fatty acid having 3 to 10 carbon atoms: component (C)]
A lower fatty acid having 3 to 10 carbon atoms is an odorous component detected in collected undergarments. In addition, in the simulated body odor composition of the present invention, 4-ethyloctanoic acid, 3-methyl-2-hexenoic acid and nonanoic acid are also lower fatty acids having 3 to 10 carbon atoms, so these specific components are included. In the simulated body odor composition, lower fatty acids having 3 to 10 carbon atoms refer to those other than the specific component. For example, in one aspect, the lower fatty acid with 3 to 10 carbon atoms can be a lower fatty acid with 3 to 10 carbon atoms other than 4-ethyloctanoic acid, and in another aspect, the lower fatty acid with 3 to 10 carbon atoms is , 4-ethyloctanoic acid, 3-methyl-2-hexenoic acid and nonanoic acid.
In the simulated body odor composition of the present invention, one or more lower fatty acids having 3 to 10 carbon atoms can be blended.
Specific examples of lower fatty acids having 3 to 10 carbon atoms that can be contained in the simulated body odor composition of the present invention include 3-methyl-2-hexenoic acid, nonanoic acid, acetic acid, butyric acid, isobutyric acid, isovaleric acid, and hexanoic acid. , heptanoic acid, octanoic acid, 4-methyl-3-hexenoic acid, 3-hydroxy-3-methylhexanoic acid, decanoic acid, pentanoic acid and the like, but are not limited thereto.
In the simulated body odor composition of the present invention, the amount of the lower fatty acid having 3 to 10 carbon atoms is not particularly limited, but it is preferably 0.1% by mass or less, and 0.05% by mass, based on the total mass of the simulated body odor composition. % or less is more preferable.
［ノナン酸：（Ｄ）成分］
ノナン酸は、炭素数３～１０の低級脂肪酸の中で、着用回収した肌着類から検出される最も特徴的な成分である。
本発明の擬似体臭組成物中、ノナン酸の配合量は特に限定されないが、擬似体臭組成物の総質量に対して、0.01～0.1質量％が好ましく、０．０１～０．０５質量％がより好ましい。
[Nonanoic acid: component (D)]
Among lower fatty acids having 3 to 10 carbon atoms, nonanoic acid is the most characteristic component detected in collected undergarments.
The amount of nonanoic acid in the simulated body odor composition of the present invention is not particularly limited, but is preferably 0.01 to 0.1% by mass, more preferably 0.01 to 0.05% by mass, based on the total mass of the simulated body odor composition. preferable.
本発明の擬似体臭組成物において、上記（Ａ）、（Ｂ）、（Ｃ）及び（Ｄ）成分の配合割合は、特に限定されないが、（Ａ）、（Ｂ）、（Ｃ）及び（Ｄ）の質量比が、（Ａ）：（Ｂ）：（Ｃ）：（Ｄ）＝１～１０：１０～３０：１～５：１～１０であることが好ましい。このような配合割合の範囲内であると、より忠実に衣類に付着・蓄積残存する体臭を再現し得る。 In the simulated body odor composition of the present invention, the mixing ratio of the components (A), (B), (C) and (D) is not particularly limited, but (A), (B), (C) and (D) ) is preferably (A):(B):(C):(D)=1-10:10-30:1-5:1-10. Within such a blending ratio range, the body odor that adheres, accumulates and remains on clothing can be more faithfully reproduced.
［溶剤］
本発明の擬似体臭組成物において、溶剤を配合し得る。溶剤としては、本発明の擬似体臭組成物の擬似体臭に影響を与えないものであれば特に限定されないが、例えば、トリエチルシトレイト（TEC）、ジプロピレングリコール（ＤＰＧ）、エチレングリコールモノブチルエーテル（ＢＥＧ）等が挙げられる。
本発明の擬似体臭組成物中、溶剤の配合量は特に限定されないが、擬似体臭組成物の総質量に対して、９０.０～９９.９質量％が好ましく、９９．０～９９．９質量％がより好ましい。
[solvent]
A solvent may be incorporated in the simulated body odor composition of the present invention. The solvent is not particularly limited as long as it does not affect the simulated body odor of the body odor composition of the present invention. Examples include triethyl citrate (TEC), dipropylene glycol (DPG), ethylene glycol monobutyl ether (BEG ) and the like.
The amount of the solvent in the simulated body odor composition of the present invention is not particularly limited, but it is preferably 90.0 to 99.9% by mass, more preferably 99.0 to 99.9% by mass, based on the total mass of the simulated body odor composition. % is more preferred.
［評価方法］
本発明の擬似体臭組成物の体臭類似性については、混合した成分について、その臭気を３～１０名の専門パネルを用い、その再現性、類似性を判定することにより行われ得る。
具体的には、調整した擬似体臭組成物をにおい紙につけ、直後ににおい紙のにおいを嗅ぎ評価を行う。調整された本発明の擬似体臭組成物は、実際に存在する衣類に付着・蓄積残存する様々な体臭をより正確に再現することができる。従って、本発明の擬似体臭組成物を使用して衣類に付着・蓄積残存する擬似体臭臭気を評価することができる。更に、本発明の擬似体臭組成物を使用して、衣類に付着・蓄積残存する体臭のマスキング又は消臭効果を的確に且つ簡易に評価できる。つまり、本発明の擬似体臭組成物を使用して、衣類に付着・蓄積残存する体臭に対してその臭いのマスキング作用又は消臭作用を有する物質を効率よくスクリーニングすることができる。
本発明の擬似体臭組成物を使用した衣類に付着・蓄積残存する体臭を消臭する評価、即ち、体臭の強度の評価方法は、例えば、容量既知の密栓できるバイアル瓶を用意し、そこに、綿球を入れて、そこに規定量の擬似体臭組成物を添加し、その臭気を嗅ぎ、次いで被検体（消臭作用する物質）を加えた際に、臭気がどうなるかを比較することにより行うことができる。また、実際に綿衣類や化繊衣類を擬似体臭組成物の塗布対象布にして、被検体による体臭の消臭効果を評価しても良い。
[Evaluation method]
The body odor similarity of the simulated body odor composition of the present invention can be determined by judging the reproducibility and similarity of the odor of the mixed components using a panel of 3 to 10 experts.
Specifically, the prepared simulated body odor composition is applied to odor paper, and immediately after that, the odor paper is smelled and evaluated. The adjusted simulated body odor composition of the present invention can more accurately reproduce various body odors that actually adhere to, accumulate and remain on clothing. Therefore, the simulated body odor composition of the present invention can be used to evaluate the simulated body odor that adheres to, accumulates and remains on clothes. Furthermore, the simulated body odor composition of the present invention can be used to accurately and simply evaluate the effect of masking or deodorizing body odors that adhere to, accumulate and remain on clothing. In other words, the simulated body odor composition of the present invention can be used to efficiently screen for substances that have a masking or deodorizing effect on body odors that adhere to, accumulate and remain on clothing.
Evaluation of deodorization of body odor remaining on clothes using the simulated body odor composition of the present invention, i.e., evaluation of body odor strength, can be performed by, for example, preparing a sealed vial with a known capacity, A cotton ball is put in, a specified amount of a simulated body odor composition is added, the odor is smelled, and then a test sample (substance with deodorant action) is added, and the odor is compared. be able to. In addition, the body odor deodorizing effect of the subject may be evaluated by actually using cotton clothing or synthetic fiber clothing as a cloth to be coated with the simulated body odor composition.
以下、実施例により本発明を更に詳細に説明するが、本発明はこれに限定されるものではない。尚、実施例において、成分配合量は、下記表４の「組成物濃度v/v%」を除きすべて質量％（指定のある場合を除き、純分換算）を示す。 EXAMPLES The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples. In the examples, the amounts of ingredients except for "composition concentration v/v%" in Table 4 below are all shown in mass% (converted to pure content, unless otherwise specified).
［擬似体臭組成物の調製］
・Ａ－１：４‐エチルオクタン酸
・Ｂ－１：３‐メチル‐２‐ヘキセン酸
・Ｃ－１及びＣ－２：下記表１記載の混合物
・比較化合物１：４‐メチル‐３‐ヘキセン酸
・比較化合物２：３‐ヒドロキシ‐３‐メチルヘキサン酸
・溶剤：トリエチルシトレイト（TEC）
上記の成分を、下記表３に記載の濃度になるよう、５０ｍＬのガラス容器内にて順に溶剤に溶解して、組成物とした。
[Preparation of simulated body odor composition]
· A-1: 4-ethyloctanoic acid · B-1: 3-methyl-2-hexenoic acid · C-1 and C-2: mixtures described in Table 1 below
The above components were dissolved in order in a solvent in a 50 mL glass container so as to have the concentrations shown in Table 3 below to obtain a composition.
［擬似体臭組成物の臭気評価方法］
調製した各例の擬似体臭組成物について、体臭との類似性及び臭気強度を以下のように評価した。
＜体臭との類似性の評価＞
各擬似体臭組成物をにおい紙につけ、直接、専門パネラー６名でにおい紙のにおいを嗅ぎ評価し、以下の表２に示される評価基準にて総合的に判断して点数を付け、平均点を算出した。
６名の評価平均点：
１．０点～１．５点未満 → １点
１．５点以上～２．５点未満 → ２点
２．５点以上～３．５点未満 → ３点
３．５点以上～４．５点未満 → ４点
４．５点以上～５．０点 → ５点
結果を下記表３に示す。
[Method for evaluating odor of simulated body odor composition]
The similarity to body odor and the odor intensity of the simulated body odor composition prepared in each example were evaluated as follows.
<Evaluation of similarity to body odor>
Each simulated body odor composition was applied to an odor paper, and the odor of the odor paper was directly evaluated by 6 expert panelists. Calculated.
Evaluation average score of 6 people:
1.0 to less than 1.5 → 1 point 1.5 to less than 2.5 → 2 points 2.5 to less than 3.5 → 3 points 3.5 to 4.5 Less than points → 4 points 4.5 points or more to 5.0 points → 5 points The results are shown in Table 3 below.
＜臭気強度の評価＞
表３に記載の実施例１の擬似体臭組成物を10倍濃縮したものを準備した。
30mLのバイアル瓶に、綿球（No.14）を一つ入れ、更に、当該擬似体臭組成物の10倍濃縮組成物を、下記表４に記載のとおりトリエチルシトレイト（TEC：トリエチルシトレイト試薬）にて希釈したものを100μL滴下し、密栓して、室温にて1時間放置した。その後、ヘッドスペースの臭気を、専門パネラー３名が以下に示す基準に従って、評価し、協議の上点数を決定した。３点が好ましい。
下記表４に記載の実施例６～実施例９は、表３に記載の実施例１の擬似体臭組成物の10倍濃縮組成物について、記載の各混合比でＴＥＣで希釈し、その際のバイアル瓶口の臭気強度について試験したものである。結果を下記表４に示す。
（６段階臭気強度の評価基準）
５点：強烈なにおい
４点：強いにおい
３点：楽に感知できるにおい
２点：何のにおいかがわかる弱いにおい（認知閾値濃度）
１点：やっと感知できるにおい（検知閾値濃度）
０点：無臭
<Evaluation of odor intensity>
A 10-fold concentration of the simulated body odor composition of Example 1 shown in Table 3 was prepared.
Put one cotton ball (No. 14) in a 30 mL vial bottle, and add a 10-fold concentrated composition of the simulated body odor composition to triethyl citrate (TEC: triethyl citrate reagent) as shown in Table 4 below. ) was added dropwise, and the tube was tightly stoppered and left at room temperature for 1 hour. After that, the odor of the headspace was evaluated by three expert panelists according to the criteria shown below, and the top score was determined by discussion. 3 points are preferred.
In Examples 6 to 9 listed in Table 4 below, the 10-fold concentrated composition of the simulated body odor composition of Example 1 listed in Table 3 was diluted with TEC at each of the described mixing ratios. It was tested for the odor intensity of the vial bottle opening. The results are shown in Table 4 below.
(Evaluation criteria for 6-step odor intensity)
5 points: strong odor 4 points: strong odor 3 points: easily perceivable odor 2 points: weak odor that can be identified (cognitive threshold concentration)
1 point: Barely detectable odor (detection threshold concentration)
0 points: odorless
Claims (4)
（Ｂ）３‐メチル‐２‐ヘキセン酸、
（Ｃ）４‐エチルオクタン酸、３‐メチル‐２‐ヘキセン酸及びノナン酸以外の、炭素数３～１０の低級脂肪酸１種以上、及び
（Ｄ）ノナン酸
を含む擬似体臭組成物であって、該擬似体臭組成物の総質量に対して、前記（Ａ）成分の含有量が０．０１～０．２質量％、前記（Ｂ）成分の含有量が０．０１～０．３質量％、前記（Ｃ）成分の含有量が０．１質量％以下、かつ前記（Ｄ）成分の含有量が０．０１～０．１質量％であり、（Ａ）、（Ｂ）、（Ｃ）及び（Ｄ）の質量比が、（Ａ）：（Ｂ）：（Ｃ）：（Ｄ）＝１～１０：１０～３０：１～５：１～１０である、擬似体臭組成物。 (A) 4-ethyloctanoic acid,
(B) 3-methyl-2-hexenoic acid,
(C) one or more lower fatty acids having 3 to 10 carbon atoms other than 4-ethyloctanoic acid, 3-methyl-2-hexenoic acid and nonanoic acid, and (D) a pseudo body odor composition comprising nonanoic acid , the content of the component (A) is 0.01 to 0.2% by mass, and the content of the component (B) is 0.01 to 0.3% by mass, relative to the total mass of the simulated body odor composition. %, the content of the component (C) is 0.1% by mass or less, and the content of the component (D) is 0.01 to 0.1% by mass, and (A), (B), (C ) and (D) in a mass ratio of (A):(B):(C):(D)=1-10:10-30:1-5:1-10.
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| JP2004263102A (en) | 2003-03-03 | 2004-09-24 | Takasago Internatl Corp | False body odor composition |
| JP2016519947A (en) | 2013-05-31 | 2016-07-11 | シェンコム・エス．エー．Ｃｈｅｍｃｏｍ Ｓ．Ａ． | Olfactory receptors involved in perception of sweat carboxylic acid and their use |
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| JP2004263102A (en) | 2003-03-03 | 2004-09-24 | Takasago Internatl Corp | False body odor composition |
| JP2016519947A (en) | 2013-05-31 | 2016-07-11 | シェンコム・エス．エー．Ｃｈｅｍｃｏｍ Ｓ．Ａ． | Olfactory receptors involved in perception of sweat carboxylic acid and their use |
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