| 摘要 |
PROBLEM TO BE SOLVED: To obtain a composition excellent in coloring rate and stability and usable for coloring a food, a fodder or a cosmetic at a low cost by treating cells of microorganisms belonging to Flavobacterium multivorum capable of producing zeaxanthin, under a specific condition. SOLUTION: Cells of microorganisms belonging to Flavobacterium multivorum capable of producing zeaxanthin are fermented in a nutrient medium containing a carbon source to be assimilated and absorbed, to provide a fermented liquid, and the cells are separated from the fermented liquid to provide a cell paste. The cell paste is formed into a slurry, and the paste formed into the slurry is homogenized. The homogenized paste is dried to provide the objective composition for coloring a food, a fodder or a cosmetic. The paste is preferably formed in the presence of an antioxidant, a chelating agent or a mixture thereof, and an emulsifying agent. |
