Indicator for assessing body odor, process for producing the same, body odor assessment method, method of assessing efficaciousness of deodorant and kit for conveniently assessing body odor

Abstract

An indicator material for assessing body odor of the present invention comprises at least one member selected from the group consisting of a substance (A) which is a β-hydroxycarboxylic acid compound represented by the formula (1), a substance (B) which is a derivative of the compound represented by the formula (1), a substance (C) which is an alcohol compound having a mercapto group at the 3-position represented by the formula (2),and a substance (D) which is a derivative of the compound represented by the formula (2). The present invention also provides a method of producing the compound represented by the formula (2) by incubating perspiration originated from a human in an environment with an oxygen concentration of 10 v / v % or less. The present invention also provides a kit for assessing body odor of a human, wherein the kit for assessing body odor of a human includes a coloration reagent which reacts with β-hydroxycarboxylic acid originated from perspiration of a human.

Description

TECHNICAL FIELD [0001] The present invention relates to an indicator material for assessing a body odor, and a method for assessing a level of a body odor or effectiveness of a deodorant. [0002] Also, the present invention relates to an assessing kit and an assessment method including a coloration reagent, which reacts β-hydroxycarboxylic acid or the like originated from perspiration of a human with the coloration reagent. BACKGROUND ART [0003] Recently, number of people who are anxious about their body odor is increasing according to the growing desire for hygiene. The body odor is a collective term for an odor generated from any parts of a body, mainly a head, a mouth, underarms, a genital area, feet or the like. Particularly, since an axillary odor (odor of underarms) is easily sensed by a person oneself or people around, a level thereof, for instance, some factors including the presence, strength, difference in quality or the like of the axillary odor tends to dominate the level...

AI Technical Summary

Benefits of technology

[0026] The present invention provides an indicator material capable of assessing presence and strength of an apocrine odor of axillary regions about which many people are particularly anxious among body odors objectively and quantitatively, and a method using the indicator material to assess a level of a body odor or effectiveness of a deodorant. Also, the present invention provides a method of producing the indicator material for a simple and accurate assessment of a body odor. Further, the present invention provides a kit capable of surely, promptly and easily assessing the kind and level of body odor of a human, and a method of assessing human odor using the kit.

[0049] The kit for assessing according to the present invention is a kit for assessing body odor of a human including a coloration reagent which reacts with β-hydroxycarboxylic acid and / or fatty acid having 12 or less carbons other than said β-hydroxycarboxylic acid originated from perspiration of a human respectively. The kit enabled to assess a kind and strength of odor and a level of human odor originated from perspiration of a human surely, promptly and easily from the color exhibited by reacting β-hydroxycarboxylic acid which is a material causing an apocrine odor and fatty acid having 12 or less carbons other than said β-hydroxycarboxylic acid which is a material causing an acid odor with a coloration reagent.

Problems solved by technology

Further, the person oneself or people around often feels the axillary odor itself uncomfortable rather than the body odor.

The method (1) needs professional panel members such as a skilled dermatologist, thus, it cannot be easily performed.

Also, the method (1) assesses the level of apocrine odor by smelling an odor of the cotton wool which wiped underarms of a test subject, which allows to mingle a judgment with a large degree of the assessor's subjectivity and has difficulty in a quantitative evaluation.

Further, when the evaluation is performed consecutively, a sense of smell may get tired so as to lower objectivity.

Therefore, there is a risk of false assessment with limited evaluation points and there is a possibility of ignoring axillary odor which is not actualized.

Also, such studies can be rough indications for assessing tragomaschalia habit, however, since they are not quantitative and hard to assess, they may lack accuracy and be not practical to assess the improvement in axillary odor after the operation to remove apocrine glands, the presence and level of recurrence of apocrine odor due to regeneration of apocrine glands after the operation, the effectiveness of deodorizing or masking of a deodorant or the like.

A test subject needs to accept mental and physical suffering, thus, the method cannot be easily performed.

Also, the operation fee is generally high.

Hence, presence or strength of a body odor of a human, particularly, an apocrine odor of axillary regions has not been able to be assessed objectively and quantitatively.

It has been difficult to selectively separate the unsaturated carboxylic acid which is a characteristic component of an apocrine odor among the various acid components

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