Title:
廃棄卵殻からの低分子量アミノグリカンの単離および安定化方法
Document Type and Number:
Japanese Patent JP2009531513
Kind Code:
A
Abstract:
A process for the isolation of low-molecular weight aminoglycan compound of formula I made up of alternating glucuronic acid and N-acetyl glucosamine units; from a hitherto unexploited natural source of waste egg shells; which process comprises the steps of: wherein M may be at one or more instances Na, Ca, K, Mg: and n is an integer between 20 and 40: (a) pre-preparation of the waste egg-shells for extraction of the embryonic low molecular weight aminoglycan compound of formula I using a polar organic solvent in water; (b) extraction of the low molecular weight aminoglycan compound of formula I as its water soluble salt using an aqueous polar salt solution; (c) isolation of a purified low molecular weight aminoglycan compound of formula I by gel formation out of the aqueous salt mixture by using a polar organic solvent followed by filtration or centrifuging; (d) stabilization of the isolated aminoglycan extract by sequential introduction of organic oils into a semi-dried gel to form the aminoglycan compound of formula I.
Inventors:
Patel Fram Rose Bomi
Application Number:
JP2009502265A
Publication Date:
September 03, 2009
Filing Date:
March 12, 2007
Export Citation:
Assignee:
ROMANO DEVELOPMENT INC.
International Classes:
C08B37/00; A61K8/73; A61Q19/06
Foreign References:
| WO2004080388A2 | 2004-09-23 | |||
| WO2001005434A2 | 2001-01-25 | |||
| WO2002092131A2 | 2002-11-21 |
Attorney, Agent or Firm:
Yoshiro Kurauchi