PRODUCTION OF CHITOSAN-CONTAINING HOLLOW FIBER AND ITS SHEET

摘要

PURPOSE:To obtain chitosan-containing hollow fibers useful for producing an antimicrobial filter, having a proper aspect ratio in forming a sheet, excellent miscibility with natural/fiber, by treating cells of a chitosan-containing zygomycetes with a hot alkali in low concentration. CONSTITUTION:Mycelia of a chitosan-containing zygomycetes such as Rhizopus- acetoinus-HUT1,219 is grown in a slurried state. The cells after culture are treated with a hot alkali in low concentration. After the treatment, the cells are washed with water up to neutrality to provide chitosan-containing hollow fibers and the fibers are made into a sheet by the same method as papermaking. Various chemicals can be added to the sheet by chemical modification of amino group derived from chitosan.