Primary biodegradation of a series of alkyl sulfosuccinates by mixed bacterial culture

. 1999 ; 44 (3) : 323-7.

Jazyk angličtina Země Spojené státy americké Médium print

Typ dokumentu srovnávací studie, časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/pmid10664889

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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