Biocide resistant strains

The biocides methylisothiazolone (MIT), methylchloroisothiazolinone (CMIT), ethylenedioxydimethanol (EDDM) and glutaraldehyde (GDA) are used as preservatives for white mineral dispersions (WMD).

Biocide-resistant strains were isolated from WMD and published in 2010 by Di Maiuta, N., Schwarzentruber, P. and Dow, C.S. in Appl. Microbiol. Biotechnol. (PMID: 20878320):

The following strains are available from CCOS:

CCOS 29: rGCM (GDA/CMIT/MIT-resistant): Pseudomonas mendocina

CCOS 30: rECM (EDDM/CMIT/MIT-resistant): Pseudomonas sp. (P. pseudoalcaligenes / P. oleovorans)

Biocide degrading strains

Biocide degrading strains were isolated from a sewage plant from a triazine producing factory in CH-Basel and the biocatalytic properties of the strains were published by Josef Zeyer in 1979 (ETH 6446, dissertation in German)

The following strains are available from CCOS:

CCOS 23: Candida palmioleophila (strain 2.20): dechlorination of 2-chloro-triazine, deamination of N-alkyl ammeline, transformation of ammeline to ammelide

CCOS 24: Trichosporon moniliforme (strain 6.22): dechlorination of 2-chloro-triazine, deamination of N-alkyl-ammeline, transformation of ammeline to ammelide, transformation of ammeline to cyanuric acid

CCOS 25: Rhodococcus sp. (strain 123B): dechlorination of 2-chloro-triazine, deamination of N-alkyl- ammeline, transformation of ammeline to ammelide, transformation of ammeline to cyanuric acid

CCOS biocide resistant and degrading strains are available as actively growing cultures or as cryo cultures. We look forward to receiving your order and please for further details.