Processes for producing thermophilic aspartase
AssigneeKyowa Hakko Kogyo Co., Ltd.
InventorsKazuo Kimura, Kenichiro Takayama, Yutaka Ado, Tamotsu Kawamoto, Izumi Masunaga
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Abstract
Thermophilic aspartase is produced by culturing a microorganism belonging to the genus Bacillus. The enzyme is useful as a catalyst in the production of L-aspartic acid from ammonium fumarate or a mixture of fumaric acid and ammonia.
Claims4
A process for producing thermophilic aspartase which comprises culturing a thermophilic aspartase producing Bacillus aminogenes having the identifying characterestics of NRRL B12061 or Bacillus thermoaminophilus having the identifying characteristics of NRRL B12060 in a nutrient medium until substantial enzymatic activity is detectable and thereafter isolating said thermophilic aspartase.
A biologically pure culture of Bacillus thermoaminophilus having the identifying characteristics of NRRL B-12060, which produces thermophilic aspartase in recoverable quantities upon culturing.
A biologically pure culture of Bacillus aminogenes having the identifying characteristics of NRRL B-12061, which produces thermophilic aspartase in recoverable quantities upon culturing.
Dependencies are inferred from the claim text.