Title:
【発明の名称】アスタキサンチンを過剰に生成するPHAFFIARHODOZYMA菌株、その培養方法および動物飼料中への使用
Document Type and Number:
Japanese Patent JPH08508885
Kind Code:
A
Abstract:
Phaffia rhodozyma strains are described which produce greater than 3,000 ppm astaxanthin based on dry yeast solids when cultivated in a volume of nutrient medium of at least about 1,500 liters and containing in excess of 4 percent, preferably in excess of 6 percent, dry yeast solids. These and other strains are cultivated by an improved fermentation method comprising extending the maturation phase of the fermentation by one or more various techniques including exposing the yeast cells to a low-intensity light, slow feeding the cells with a rapidly metabolized energy source, e.g. glucose, and replacing the rapidly metabolized energy source with a slowly metabolized energy source, e.g. gylcerol. The cells of these strains are incorporated into animal feeds, particularly feeds for salmonid fishes, to impart or enhance the red pigmentation of these animals and products made from these animals.
Inventors:
Jacobson, Gunnard Kay
Jolly, Setuko Oh
Sedmac, Joseph Jay
Skirt Rudd, Thomas Jay
Wasilsky, John M
Jolly, Setuko Oh
Sedmac, Joseph Jay
Skirt Rudd, Thomas Jay
Wasilsky, John M
Application Number:
JP52309794A
Publication Date:
September 24, 1996
Filing Date:
August 13, 1993
Export Citation:
Assignee:
Universal Foods Corporation
International Classes:
A23K1/16; A23L1/275; C07C49/743; C12N1/16; C12N13/00; C12P23/00; C12R1/645; (IPC1-7): C12N1/16; A23K1/16; C07C49/743; C12P23/00
Attorney, Agent or Firm:
Kyozo Yuasa (6 people outside)