Primary biodegradation of a series of alkyl sulfosuccinates by mixed bacterial culture
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu srovnávací studie, časopisecké články, práce podpořená grantem
PubMed
10664889
DOI
10.1007/bf02818555
Knihovny.cz E-zdroje
- MeSH
- alkany metabolismus MeSH
- Bacteria metabolismus MeSH
- biodegradace MeSH
- biologická adaptace MeSH
- detergenty metabolismus MeSH
- estery kyseliny sírové metabolismus MeSH
- sukcináty metabolismus MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- srovnávací studie MeSH
- Názvy látek
- alkany MeSH
- detergenty MeSH
- di-n-hexyl sulfosuccinate MeSH Prohlížeč
- estery kyseliny sírové MeSH
- sukcináty MeSH
A mixed bacterial culture capable of primary biodegradation of sodium alkyl sulfosuccinates R1-OOC-CH(SO3Na)-CH2-COO-R2 was obtained from soil microorganisms by enrichment cultivation and adaptation in the presence of mono-n-dodecyl sulfosuccinate. Gram-negative psychrophilic bacteria with proteolytic, lipolytic and ammonifying activities were prevalent in the culture. The process of primary biodegradation of alkyl sulfosuccinates can be described by first-order reaction kinetics. The rate constants for linear esters were ascending in the order C4 < C5 < C6 (45 mumol/min per g cell protein) and further descending with increasing length of the carbon chain C6 > C8 >> C13. Substitution of cyclohexyl for n-hexyl group resulted in fourfold decrease in biodegradation rate. Terminal branching of alkyl chain does not affect the rate of primary biodegradation.
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Dihexyl sulfosuccinate biodegradation by mixed cultures