Benefits
Benefit of B12 for Dehalococcoides ethenogenes
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EOS® 598B42 offers added value
by providing an optimal diet for
the halorespiring bacteria.
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Several studies have shown that growth of dechlorinating microorganisms may be enhanced by providing these bacteria with amino acids and/or vitamins (Deweerd et al, Appl. Environ. Micro, 1929-1934, 1991; Holliger et al, Arch. Microbiol, 313-321, 1998; Maymo-Gatell et al, Science, 1568-1571, 1997). Consequently, microbiologists often include vitamin B
12 and yeast extract to generate conditions for optimum growth (Morse et al, Draft Technical Protocol: A Treatability Test for Evaluating the Potential Applicability of the Reductive Anaerobic Biological In Situ Treatment Technology (RABITT) to Remediate Chloroethenes, ESTCP, 1998).
In January 2005, researchers at Cornell University issued a press release on a bacterium that detoxifies PCE. The news release states that "... the academic and corporate researchers are learning more about Dehalococcoides husbandry. For example, it seems to like a cocktail of acetate, vitamin B12 and extracts of mixed microbial cultures as nutrients."
