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Title:
A natural (L) -menthol refining thing, a manufacturing method for the same, and a valuation method
Document Type and Number:
Japanese Patent JP6144342
Kind Code:
B2
Abstract:
[Problem] To provide a natural (L)-menthol purified product that eliminates unpleasant tastes and combines a cool sensation and a mint-like aroma, and to provide a production method and an evaluation method for supplying the natural (L)-menthol purified product easily and inexpensively. [Solution] To make a natural (L)-menthol purified product characterized by combining a cool sensation and a mint-like aroma and having a color saturation of 1 or lower as measured by the method described below. (1) A step for vacuum distilling the purified natural (L) -menthol purified product while the purified product is in a heat-melted state and obtaining a vacuum distillation residue. (2) A step for adding ethanol to the vacuum distillation residue obtained in step (1) and obtaining an ethanol solution. (3) A step for making a color difference measurement sample of the ethanol solution obtained in step (2) and assessing the color saturation using a color difference meter that conforms to ISO 7724 (JIS Z 8722).

Inventors:
Shintaro Akiyama
Yuri Yoshioka
Yasuda Koji
Shinichi Matsumura
Application Number:
JP2015522601A
Publication Date:
June 14, 2017
Filing Date:
March 26, 2014
Export Citation:
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Assignee:
Japan Tobacco Inc.
Inabata Fragrance Co., Ltd.
International Classes:
C07C29/76; C07C29/78; C07C29/80; C07C35/12
Domestic Patent References:
JP2012517993A
JP9217084A
JP2008230978A
Attorney, Agent or Firm:
Kazuhiro Kiyohara