4. Efficient Production of the Form II Phase from Trehalose Dihydrate using Supercritical CO_2 Fluid Extraction Method(the 48th Annual Meeting)

DOI Web Site 4 References
  • AKAO Ken-ichi
    Spectroscopic Instruments Division, JASCO Corporation
  • OKUBO Yusei
    Spectroscopic Instruments Division, JASCO Corporation
  • MASAGO Hisashi
    Spectroscopic Instruments Division, JASCO Corporation
  • INOUE Yoshio
    Department of Biomolecular Engineering, Tokyo Institute of Technology
  • SAKURAI Minoru
    Department of Biomolecular Engineering, Tokyo Institute of Technology

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Other Title
  • 4. 超臨界CO_2抽出法を用いたトレハロース無水物(form II)の効果的な生成法(平成14年度第48回低温生物工学会研究報告)
  • 超臨界CO2抽出法を用いたトレハロース無水物(form 2)の効果的な生成法
  • チョウリンカイ CO2 チュウシュツホウ オ モチイタ トレハロース ムスイブツ form 2 ノ コウカテキ ナ セイセイホウ

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Form II is a kind of metastable crystalline form of trehalose anhydrate and is easily converted to the dihydrate crystal by absorbing water in a moist atmosphere at room temperature. It can be utilized as an edible and no poisonous desiccant and thus its efficient production from the dihydrate is significant from a viewpoint of industrial application. In this study, we attempt to extract crystal water from the dihydrate using supercritical CO_2 fluid. We examine the dependence of extraction efficiency on the extraction time, the temperature and pressure of the fluid. Consequently, we demonstrate that form II is produced from the dihydrate through supercritical CO_2 fluid extraction if appropriate temperature and pressure conditions (around 80℃ and 20 MPa) are given.

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