CO2-dependent fermentation of phenol to acetate, butyrate and benzoate by an anaerobic, pasteurised culture.

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 Microbiol

journal_title

Archives of microbiology

authors

Karlsson A,Ejlertsson J,Svensson BH

doi

10.1007/s002030000160

keywords:

subject

Has Abstract

pub_date

2000-05-01 00:00:00

pages

398-402

issue

5-6

eissn

0302-8933

issn

1432-072X

journal_volume

173

pub_type

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