| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing an L-amino acid useful for medicines, feeds, foods and so on with methane as a main carbon source. SOLUTION: This method for producing an L-amino acid by a fermentation method comprises culturing a microorganism having a methane-assimilating ability and an L-amino acid-producing ability, such as a bacterium belonging to type I, type X or type II in the systematic classification of methane- assimilating bacteria, such as Methylomonas albus, Methylococcus capsulatus or Methylosinus trichosporium, with methane as a main carbon source to produce and accumulate the L-amino acid in the culture product, and then collecting the L-amino acid from the culture product. |
