Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Astaxanthin over-producing strains of phaffia rhodozyma










Image Number 5 for United States Patent #5466599.

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.








 
 
  Recently Added Patents
Systems and methods for minimization or elimination of diffusion effects in a microfluidic system
Electrophoresis display having touch screen and method for driving the touch screen
Context-sensitive views
Systems, methods, and media for firewall control via remote system information
Method for enhanced subsurface electromagnetic sensitivity
Cooler
Process and apparatus for producing composite material that includes carbon nanotubes
  Randomly Featured Patents
Tapered conductors for magnetoresistive transducers
Wearable display
Planar avalanche photodiode array with sidewall segment
Ram air turbine drive system
Obstacle detection system
Winding mechanism
HEPA filter printhead protection
Controlling access to information over a multiband network
Club chair
Drill cuttings box combined cuttings feed inlet and air outlet apparatus