Title:
PRODUCTION OF CHITOSAN/CHITIN-BASED HOLLOW FIBER
Document Type and Number:
Japanese Patent JP2560257
Kind Code:
B2
Abstract:
PURPOSE: To obtain a chitosan/chitin-based hollow fiber having antimicrobial and absorbing functions and not substantially containing glucan by subjecting a bacterial cell of the genus Rhizopus cultured under acidic conditions to thermal alkali treatment.
CONSTITUTION: An aqueous solution of sodium hydroxide in an amount of 0.5-5wt.% is added to Rhizopus acetoinus HUT 1219 bacterium cultured under an acidic condition of pH4.0 to 6.0 and the bacterial cell is subjected to thermal alkali treatment at 80-150°C in an autoclave and insoluble solid material is separated and the cultured product is washed with water and lyophilized to provide a chitosan/chitin substantially not containing glucan. The objective hollow fiber is formed by using this chitosan/chitin.
Inventors:
YOSHIHARA KAZUTOSHI
KUBO TAKAMASA
HOSOKAWA JUN
NISHAMA MASASHI
KUBO TAKAMASA
HOSOKAWA JUN
NISHAMA MASASHI
Application Number:
JP16885494A
Publication Date:
December 04, 1996
Filing Date:
June 27, 1994
Export Citation:
Assignee:
KOGYO GIJUTSUIN
International Classes:
C12S3/02; D01F9/00; (IPC1-7): D01F9/00; C12S3/02
Attorney, Agent or Firm:
Director, Shikoku Institute of Industrial Technology, AIST