Abstract:
:Fermentative degradation of phenol was studied using a non-methanogenic, pasteurised enrichment culture containing two morphologically different bacteria. Phenol was fermented to benzoate, acetate and butyrate and their relative occurrence depended on the concentration of hydrogen. Proportionately more benzoate was formed with high initial levels of H2. The influence of PH2 on the fermentation pattern was studied both in dense cell suspensions and in growing cultures by addition of hydrogen. An increase in growth yield (OD578) was observed, compared to controls, as a consequence of phenol degradation; however, the increase was less in H2-amended treatments, in which most of the phenol ended up as benzoate. The degradation of phenol in the dense cell suspension experiments was dependent on CO2. Benzoate was not degraded when added as a substrate to the growing culture. This is, to our knowledge, the first report concerning the fermentative degradation of phenol to nonaromatic products.
journal_name
Arch Microbioljournal_title
Archives of microbiologyauthors
Karlsson A,Ejlertsson J,Svensson BHdoi
10.1007/s002030000160keywords:
subject
Has Abstractpub_date
2000-05-01 00:00:00pages
398-402issue
5-6eissn
0302-8933issn
1432-072Xjournal_volume
173pub_type
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