Abstract: The present invention relates to an apparatus for continuous separation of valine from the mixture comprising amino acids such as leucine, isoleucine, etc. and a method for continuous separation of valine by using the same, and the present invention can continuously separate valine from the mixture comprising amino acids such as leucine, isoleucine, etc. in a high purity and yield.

Abstract: The present invention relates to avirulent Salmonella Gallinarum variants by inactivating virulence gene clusters of Salmonella Gallinarum (SG), a main pathogen of avian salmonellosis, and various uses thereof notably in the production of Salmonella-specific lytic bacteriophages, pharmaceutical compositions and feed additives.

Abstract: The present invention relates to a transformation vector comprising the partial fragments of a gene encoding transposase, a microorganism transformed with the vector, and a method of producing lysine using the microorganism.

Abstract: Disclosed herein is a method for producing a flavoring containing L-glutamic acid derived from natural foods by adjusting the content of ammonia remaining in a final fermentation broth after completion of culture to be in the range of 0 to 10 g/L in cultivation of L-glutamic acid producing microorganisms, thereby facilitating drying of the fermentation liquor containing L-glutamic acid. A flavoring produced by the method is also disclosed.

Abstract: The present invention relates to a novel bacteriophage, more particularly, a bacteriophage that has a specific bactericidal activity against Salmonella typhimurium, Salmonella gallinarum, or Salmonella pullorum, a composition for the prevention or treatment of infectious diseases including salmonellosis and Salmonella food poisoning caused by Salmonella typhimurium, Fowl typhoid caused by Salmonella gallinarum, and Pullorum disease caused by Salmonella pullorum, which comprises the bacteriophage as an active ingredient, and an animal feed, drinking water, cleaner, and sanitizer which comprise the bacteriophage as an active ingredient. The present invention also provides important insights into prevention and control strategies against Salmonella infection and suggests that the use of bacteriophage can be a novel, safe, and effectively plausible alternative to antibiotics for the prevention of Salmonella infection in poultry.