초록
<P><B>Abstract</B></P><P>A selective isolation procedure of clostridial strains from natural samples able to convert glycerol to 1,3-propanediol (1,3-PD) and organic acids was investigated. The modified PY medium of high concentration of NaHCO<SUB>3</SUB> was shown to be highly selective for <I>Clostridium bifermentans</I>. Obtained isolates produced mainly 1,3-PD, lactic, acetic, and formic acids from glycerol.</P>