Document Type and Number:
Japanese Patent JPH0158952
Kind Code:
B2
Abstract:
PURPOSE:In preparing antibiotics by cultivating microorganisms, to improve the productivity of antibiotics, by carrying out the cultivation under irradiation of light rays containing no ultraviolet light with <=a specific wave length. CONSTITUTION:Microorganisms are cultivated to give antibiotics, for example, a bacterium belonging to the genus Streptomyces is cultivated to give kanamycin, a fungi belonging to the genus Penicillium to give penicilling, and a fungus belonging to the genus Cephalosporium to give cephalosporinc. When the cultivation of these microorganisms is carried out under irradiation of light rays containing no ultraviolet light with <=340nm wave length, the production of these antibiotics is increased. Since the cultivation is carried out in a dark tank made of stainless steel, etc., artificial light rays are used, and a light filter is used to give the light rays having the above-mentioned condition.
Inventors:
HARASAWA ISAMU
YOKOMIZO YOSHIO
YOKOMIZO YOSHIO
Application Number:
JP10390682A
Publication Date:
December 14, 1989
Filing Date:
June 18, 1982
Export Citation:
Assignee:
NIPPON CARBIDE KOGYO KK
International Classes:
C12P19/54; C12N1/00; C12P1/00; C12P19/48; C12P35/00; C12P37/00; C12R1/465; C12R1/745; C12R1/80
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