✦ LIBER ✦

Increased biooxidation of lignosulfonates bySporotrichum pulverulentumin the presence of polyacrylic acid

✍ Scribed by Hartmut W. Kern

Publisher: Springer
Year: 1983
Tongue: English
Weight: 405 KB
Volume: 17
Category: Article
ISSN: 1432-0614
DOI: 10.1007/bf00505886

No coin nor oath required. For personal study only.

✦ Synopsis

The superiority of polyacrylic acid used as a buffer at 0.25% (w/v) during biodegradation of high molecular weight 14C~-labeled lignosulfonates (LS) by the white rot fungus Sporotrichum pulverulentum is demonstrated. Compared to 2,2-dimethylsuccinate (DMS) the release of 14CO2 from the LS occurs earlier, does not show the levelling-off symptom and reaches higher levels. Changes in pH values of the medium cannot be correlated with the stimulating effects of polyacrylic acid on the ligninolytic activity of the fungus. It seems that interaction between LS and also of dehydropolymers of coniferyl alcohol (DHP) with the polymeric buffer increases the accessibility to the fungus.

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