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Patent Searching and Data


Title:
SUPERCOOLING PROMOTING AGENT
Document Type and Number:
WIPO Patent Application WO/2008/007684
Kind Code:
A1
Abstract:
In the process of investigating a mechanism by which a tree growing in a cold climate maintains cellular water in a liquid state at a low temperature, the inventor conducted an investigation to identify a causative substance of that. As a result, the inventor identified a supercooling promoting substance present in the tree. The supercooling ability of an identified flavonoid glycoside and a synthesized flavonoid glycoside having a similar structure was tested and it was found that a supercooling promoting agent consisting of such a flavonoid glycoside can stably supercool bulk water at a low temperature for a long period of time. An aqueous solution containing the supercooling promoting agent of the present invention is useful as a solution for storing a biological material at a low temperature.

Inventors:
FUJIKAWA SEIZO
KASUGA JUN
HASHIDOKO YASUYUKI
ARAKAWA KEITA
FUKUSHI YUKIHARU
Application Number:
PCT/JP2007/063784
Publication Date:
January 17, 2008
Filing Date:
July 11, 2007
Export Citation:
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Assignee:
UNIV HOKKAIDO NAT UNIV CORP (JP)
OLYMPUS CORP (JP)
FUJIKAWA SEIZO
KASUGA JUN
HASHIDOKO YASUYUKI
ARAKAWA KEITA
FUKUSHI YUKIHARU
International Classes:
C09K3/00; A01N1/02; C09K5/08; C07H17/07
Domestic Patent References:
WO2004074397A12004-09-02
WO1997014785A21997-04-24
WO2004074397A12004-09-02
Foreign References:
JPS59109897A1984-06-25
JP2000500327A2000-01-18
Other References:
KAGAKU TO SEIBUTSU, vol. 43, no. 5, 2005, pages 280 - 282
KAGAKU TO SEIBUTSU, vol. 37, no. 12, 1999, pages 778 - 780
"FLAVONOIDS Chemistry, Biochemistry and Applications", 2006, CRC PRESS TAYLOR AND FRANCIS GROUP
Attorney, Agent or Firm:
SHIMODA, Akira et al. (Kyobashi-Nichiei Biru 3-4, Kyobashi 3-chome, Chuo-k, Tokyo 31, JP)
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