Title:
天然ｌ−メントールを生成するための方法及び装置
Document Type and Number:
Japanese Patent JP5603884
Kind Code:
B2
Abstract:
Embodiments are provided that provide for efficient production of highly pure natural I-menthol. In some embodiments, a method for preparing natural I-menthol involves providing crude mentha oil in a crystallizer and gradually reducing the temperature of the crystallizer in a step-wise manner, thereby producing highly pure crystals in less than two weeks. The methods disclosed herein are suitable for pharmaceutical GMP.
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Inventors:
Ryosuke Nagaoka
泉倉 Hideaki
Susumu Tokita
Yuri Shibata
Nagaoka Yoshiyuki
泉倉 Hideaki
Susumu Tokita
Yuri Shibata
Nagaoka Yoshiyuki
Application Number:
JP2011549696A
Publication Date:
October 08, 2014
Filing Date:
February 17, 2010
Export Citation:
Assignee:
Nagaoka business incorporated company
International Classes:
A23L27/20; C07C29/78; C07C35/12; C07B57/00
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Takeuchi
Shimada Takaku
Yuji Takeuchi
Katsuya Ninomiya
Tomoo Harada
Seki 啓
Seiya Sugiura
Daisuke Kawabe
Masanori Hasegawa
Tsugunari Iwashita
Koji Fukumoto
Ryo Maeda
Between side Eight warehouses
Yukichi Matsunaga
Kenji Kawakita
Shohei Okazawa
Patent business corporation MAEDA PATENT OFFICE
Hiroshi Takeuchi
Shimada Takaku
Yuji Takeuchi
Katsuya Ninomiya
Tomoo Harada
Seki 啓
Seiya Sugiura
Daisuke Kawabe
Masanori Hasegawa
Tsugunari Iwashita
Koji Fukumoto
Ryo Maeda
Between side Eight warehouses
Yukichi Matsunaga
Kenji Kawakita
Shohei Okazawa
Patent business corporation MAEDA PATENT OFFICE