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Title: Production of L-serine by Sarcina albida. Author: Ema M, Kakimoto T, Chibata I. Journal: Appl Environ Microbiol; 1979 Jun; 37(6):1053-8. PubMed ID: 39497. Abstract: 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.[Abstract] [Full Text] [Related] [New Search]