Reactivities of various mediators and laccases with kraft pulp and lignin model compounds.

Applied and Environmental Microbiology
R BourbonnaisS Borneman

Abstract

Laccase-catalyzed oxygen delignification of kraft pulp offers some potential as a replacement for conventional chemical bleaching and has the advantage of requiring much lower pressure and temperature. However, chemical mediators are required for effective delignification by laccase, and their price is currently too high at the dosages required. To date, most studies have employed laccase from Trametes versicolor. We have found significant differences in reactivity between laccases from different fungi when they are tested for pulp delignification in the presence of the mediators 2,2(prm1)-azinobis(3-ethylbenzthiazoline-6-sulfonate) (ABTS) and 1-hydroxybenzotriazole (HBT). A more detailed study of T. versicolor laccase with ABTS and HBT showed that HBT gave the most extensive delignification over 2 h but deactivated the enzyme, and therefore a higher enzyme dosage was required. Other mediators, including 1-nitroso-2-naphthol-3,6-disulfonic acid, 4-hydroxy-3-nitroso-1-naphthalenesulfonic acid, promazine, chlorpromazine, and Remazol brilliant blue, were also tested for their ability to delignify kraft pulp. Studies with dimeric model compounds indicated that the mechanisms of oxidation by ABTS and HBT are different. In addition, ...Continue Reading

References

Sep 1, 1978·Journal of Medicinal Chemistry·H Y ChengR L McCreery
Jan 15, 1968·Biochimica Et Biophysica Acta·J A Fee, B G Malmström
Nov 1, 1981·Journal of Medicinal Chemistry·P H SackettR L McCreery

❮ Previous
Next ❯

Citations

Jul 24, 2020·Journal of the Air & Waste Management Association·Kongkona SaikiaVaidyanathan Vinoth Kumar
Apr 26, 2003·Journal of Industrial Microbiology & Biotechnology·V L PapinuttiF Forchiassin
Sep 7, 2007·Applied Microbiology and Biotechnology·Kristiina HildénAnnele Hatakka
Sep 11, 2007·Water Environment Research : a Research Publication of the Water Environment Federation·S DasguptaN Biswas
Jun 27, 2008·Applied Biochemistry and Biotechnology·Dominic W S Wong
Jul 4, 2008·Journal of Industrial Microbiology & Biotechnology·Chellandi MohandassArthur J Ragauskas
Feb 28, 2004·FEMS Microbiology Letters·Víctor L Papinutti, Flavia Forchiassin
Nov 6, 2010·Applied Biochemistry and Biotechnology·Mei-Fang ZhouGuang-Ming Zeng
Nov 25, 1998·FEBS Letters·G AmitaiY Hadar
Jul 13, 2002·Biotechnology and Bioengineering·Feng HongLeif J Jönsson
Oct 9, 2018·Bioscience, Biotechnology, and Biochemistry·Saadia BasheerMuhammad Akhtar
Nov 27, 2010·Applied Microbiology and Biotechnology·María Díaz-GonzálezTzanko Tzanov
May 29, 1999·Applied and Environmental Microbiology·K LiK E Eriksson
Dec 1, 2010·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Komandoor Elayavalli AchyuthanAnup Kumar Singh
Jan 16, 2015·Environmental Science. Processes & Impacts·Ram Chandra, Pankaj Chowdhary
Jun 6, 2009·Biotechnology Progress·Selvia Kurniawati, James A Nicell
Jun 6, 2013·World Journal of Microbiology & Biotechnology·A UlčnikF Pohleven
Feb 5, 2015·Biotechnology for Biofuels·Ulla MoilanenLiisa Viikari
Feb 14, 2006·FEMS Microbiology Reviews·Petr Baldrian
Apr 7, 2005·Applied and Environmental Microbiology·Susana CamareroAngel T Martínez
Jan 29, 2013·Letters in Applied Microbiology·S L Moreira-NetoA M F Milagres
Mar 17, 2015·Environmental Science and Pollution Research International·Hua YangBingcai Pan
May 5, 2005·Applied and Environmental Microbiology·Michael M TauberAstrid Rehorek
May 29, 2012·Applied Biochemistry and Biotechnology·Rashmi PaliwalJ P N Rai
Jun 25, 2015·Environmental Science and Pollution Research International·Rashmi SinghQingguo Huang
Jun 4, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·John O UnuofinUchechukwu U Nwodo
Oct 24, 2002·European Journal of Biochemistry·Francesca D'AcunzoBernardo Masci
Jun 14, 2005·The New Phytologist·Pierre-Emmanuel CourtyJean Garbaye
Nov 7, 2008·Applied Microbiology and Biotechnology·Jong-Rok JeonYoon-Seok Chang

❮ Previous
Next ❯

Related Feeds

Antipsychotic Drugs

Antipsychotic drugs are a class of medication primarily used to manage psychosis (including delusions, hallucinations, paranoia or disordered thought), principally in schizophrenia and bipolar disorder. Discover the latest research on antipsychotic drugs here