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Title: Acetone, isopropanol, and butanol production by Clostridium beijerinckii (syn. Clostridium butylicum) and Clostridium aurantibutyricum

Journal Article · · Appl. Environ. Microbiol.; (United States)
OSTI ID:5707042

Thirty-four strains representing 15 species of anaerobic bacteria were screened for acetone, isopropanol, and n-butanol (solvent) production. Under our culture conditions, several strains of Clostridium beijerinckii and C. aurantibutyricum produced at least 40 mM n-butanol (C. acetobutylicum strains produced up to 41 mM n-butanol under similar conditions). Both solvent-producing and non-solvent-producing strains of C. beijerinckii have high DNA homology with a reference strain of C. beijerinckii. Strains labeled ''Clostridium butylicum'' are phenotypically similar to C. beijerinckii and showed at least 78% DNA homology to a reference strain of C. beijerinckii. Therefore, these ''C. butylicum'' strains are members of C. beijerinckii. An earlier DNA homology study has shown that C. beijerinckii, C. aurantibutyricum, and C. acetobutylicum are distinct species.

Research Organization:
Virginia Polytechnic Inst. and State Univ., Blacksburg
OSTI ID:
5707042
Journal Information:
Appl. Environ. Microbiol.; (United States), Vol. 45:3
Country of Publication:
United States
Language:
English