Title:
BIODEGRADABLE ARTICLES OBTAINED FROM ENZYMATICALLY SYNTHESIZED AMYLOSE
Document Type and Number:
WIPO Patent Application WO/2002/006507
Kind Code:
A1
Abstract:
Biodegradable articles obtained from an enzymatically synthesized amylose which has been enzymatically synthesized with the use of phosphorylase characterized in that the enzymatically synthesized amylose is made up of sugar units linked to each other exclusively via $g(a)-1,4-bond and has a weight-average molecular weight of 100 kDa or more, preferably 600 kDa or more. Furthermore, the enzymatically synthesized amylose preferably employed herein has a molecular weight distribution of 1.25 or below and may be chemically modified if needed. The above-described biodegradable articles can be produced by using the above enzymatically synthesized amylose or a chemically modified derivative thereof alone or a combination of (a) the enzymatically synthesized and/or a chemically modified derivative thereof with (b) other polymer material(s).
Inventors:
KITAMURA SHINICHI (JP)
SHIRAISHI NOBUO (JP)
YOSHIOKA MARIKO (JP)
KUDO KENICHI (JP)
OKADA SHIGETAKA (JP)
TAKAHA TAKESHI (JP)
FUJII KAZUTOSHI (JP)
TERADA YOSHINOBU (JP)
SHIRAISHI NOBUO (JP)
YOSHIOKA MARIKO (JP)
KUDO KENICHI (JP)
OKADA SHIGETAKA (JP)
TAKAHA TAKESHI (JP)
FUJII KAZUTOSHI (JP)
TERADA YOSHINOBU (JP)
Application Number:
PCT/JP2001/006147
Publication Date:
January 24, 2002
Filing Date:
July 17, 2001
Export Citation:
Assignee:
EZAKI GLICO CO (JP)
SANWA KOSAN KK (JP)
GREEN BIO INC (JP)
KITAMURA SHINICHI (JP)
SHIRAISHI NOBUO (JP)
YOSHIOKA MARIKO (JP)
KUDO KENICHI (JP)
OKADA SHIGETAKA (JP)
TAKAHA TAKESHI (JP)
FUJII KAZUTOSHI (JP)
TERADA YOSHINOBU (JP)
SANWA KOSAN KK (JP)
GREEN BIO INC (JP)
KITAMURA SHINICHI (JP)
SHIRAISHI NOBUO (JP)
YOSHIOKA MARIKO (JP)
KUDO KENICHI (JP)
OKADA SHIGETAKA (JP)
TAKAHA TAKESHI (JP)
FUJII KAZUTOSHI (JP)
TERADA YOSHINOBU (JP)
International Classes:
A61K9/48; A61K9/50; A61L15/28; A61L15/64; A61L24/00; A61L24/08; A61L31/04; A61L31/14; C08B30/20; C08L3/12; C08L3/14; C09D103/12; C09D103/14; C09J103/12; C09J103/14; C12P19/04; (IPC1-7): C12P19/04; C08B30/20; C08L3/12; C08L3/14; A61L15/14; A61L24/08; A61L31/04; A61K47/36; A61K9/48; C09D103/12; C09D103/14; C09D167/04; A01N25/00; A01N25/34; C09J103/12; C09J103/14; C09J167/04; C05G3/00; C08J5/18
Domestic Patent References:
| WO1990013576A1 | 1990-11-15 |
Foreign References:
| JPH07289278A | 1995-11-07 | |||
| EP0376201A1 | 1990-07-04 | |||
| JPH0446901A | 1992-02-17 |
Other References:
WHITESIDES G.M. ET AL.: "The enzymic utilization of sucrose in the synthesis of amylose and derivatives of amylose, using phosphorylase", CARBOHYDRATE RESEARCH, vol. 157, December 1986 (1986-12-01), pages C4 - C7, XP002948585
PIERRE MONSAN ET AL.: "Amylosucrase from neisseria polysaccharea: novel catalytic properties", FEBS LETTERS, vol. 471, April 2000 (2000-04-01), pages 219 - 223, XP002948586
PIERRE MONSAN ET AL.: "Amylosucrase from neisseria polysaccharea: novel catalytic properties", FEBS LETTERS, vol. 471, April 2000 (2000-04-01), pages 219 - 223, XP002948586
Attorney, Agent or Firm:
Aoyama, Tamotsu (Shiromi 1-chome Chuo-ku Osaka-shi, Osaka, JP)
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