Incorporation of laccase in pigment coating for bioactive paper applications

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Piia Gustafsson, Stina Grönqvist, Martti Toivakka, Maria Smolander, Tomi Erho, Jouko Peltonen
Publisher: AB SVENSK PAPPERSTIDNING
Publication year: 2011
Journal: Nordic Pulp and Paper Research Journal
Journal acronym: NORD PULP PAP RES J
Volume number: 26
Issue number: 1
Start page: 118
End page: 127
Number of pages: 10
ISSN: 0283-2631


Abstract

Two different laccases, Trametes hirsuta (ThL) and Melanocarpus albomyces (MaL), having different redox potentials were studied as model biochemically active compounds in coating colors. Coating colors for LWC paper and inkjet paper were studied. The effects of coating color composition, pH, drying conditions of the coating layer and calendering on the enzymatic activity were studied. It was found out that laccase retained its activity in coating color dispersions as well as on the coated papers. MaL was found to retain its activity better in the coating layers than ThL. MaL had retained its activity in coated paper even after 5 1/2 months storage. Drying of the coating layer did not reduce the enzyme activity significantly whereas calendering reduced the enzymatic activity to some extent.


Keywords

Bioactive paper, Enzymatic activity, Laccase, Pigment coating

Last updated on 2019-14-10 at 03:37