Journal
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
Volume 54, Issue 4, Pages 510-514Publisher
SPRINGER-VERLAG
DOI: 10.1007/s002530000452
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The storage stability of laccase (EC 1.10.3.2) from the white-rot basidomycete Trametes versicolor in potassium-citrate buffer was enhanced by various phenolic compounds as well as by lignin sulfonate. The highest storage stability was obtained with phenolics, e.g. phloroglucin and 3,5-dihydroxybenzoic acid; these represent substrates of laccase which an oxidized slowly because of their relatively high redox potential and which did not precipitate from the solution within the tested period of time. Sterilization enhanced the stability of laccase but additional stabilization by phenolics was observed both under sterile and non-sterile conditions. We thus concluded that stabilization occurred not only through prevention of microbial degradation.
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