Abstract
A laccase was purified from Trametes hirsuta. This laccase was classified as a “white” or “yellow” laccase. pH 2.4 was optimal for the oxidation of ABTS and pH 2.5 for DMP. DMP oxidation was optimal at 85°C. The half-life of this laccase was 70 min at 75°C, and 5 h at 65°C. Non-phenolic dyes, such as Methyl Red, were oxidized by purified laccase without mediators. The enzyme was not inhibited by Cu2+, Mn2+, or EDTA. These are atypical laccase characteristics that make it a good candidate for theoretical and applied research.
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Acknowledgments
The authors are grateful to Dr. Roberta Greenwood for her assistance in editing this manuscript. This study was supported by the National science Foundation of China (Grant Nos. 30371136 and 30871985).
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Haibo, Z., Yinglong, Z., Feng, H. et al. Purification and characterization of a thermostable laccase with unique oxidative characteristics from Trametes hirsuta . Biotechnol Lett 31, 837–843 (2009). https://doi.org/10.1007/s10529-009-9945-0
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DOI: https://doi.org/10.1007/s10529-009-9945-0