Volatile Compounds Produced by Propionibacterium shermanii
نویسندگان
چکیده
منابع مشابه
Effect of Aeration on Organic Acid Production by Propionibacterium shermanii
Propionibacteria have been reported as being oxygen sensitive bacteria. Nevertheless, in this work, we intend to show that Propionibacterium shermanii CDB 10014 is able to grow even at high volumetric oxygen transfer coefficients (KLa). Similar final cell concentrations were achieved in experiments at different KLa values, with increasing cell yield from 0.08 g/g cells in anaerobic con ditions...
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The linked structural genes coding for both subunits of adenosylcobalamin-dependent methylmalonyl-CoA mutase from the Gram-positive bacterium Propionibacterium shermanii have been altered by site-directed mutagenesis and placed under the control of an inducible phage-T7-specific plasmid promoter in Escherichia coli. Conditions have been found under which both alpha- and beta-subunits are produc...
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Propionibacterium freudenreichii subsp. shermanii can ferment glucose and glycerol to propionic acid with acetic and succinic acids as two by-products. Propionic acid production from glucose was relatively fast (0.19 g/Lh) but gave low product yield (~0.39 g/g) and selectivity (P/A: ~2.6; P/S: ~4.8). In contrast, glycerol with a more reduced state gave a high propionic acid yield (~0.65 g/g) an...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1968
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(68)87075-4