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  • Journal
    Digital Access ScienceDirect v. 20-, 1982-
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    v. 20-24, [25], 26-32, 1982-86, [1987], 1988-94.
    14
  • Article
    Ema M, Kakimoto T, Chibata I.
    Appl Environ Microbiol. 1979 Jun;37(6):1053-8.
    Conditions for the production of microbial L-serine hydroxymethyltransferase and for the conversion of glycine to L-serine were studied. A number of microorganisms were screened for their abilities to form and accululate L-serine from glycine, and Sarcina albida was selected as the best organism. Enzyme activity in this organism as high as 0.12 U/ml could be produced in shaken cultures at 30 degrees C in a medium containing glucose, ammonium sulfate, glycine, yeast extract, and inorganic salts. L-Serine was produced most efficiently by shaking cells at 30 degrees C in a reaction mixture containing 20% glycine, 5 X 10(-3) M formaldehyde, and 3 X 10(-4) M pyridoxal phosphate in yields of 22 mg of broth in 5 days. L-Serine was easily isolated in 84% yields by ion-exchange resin.
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