Process for the microbiological modification of hardwood by the action of microorganisms
AssigneesSven-Olof Enfors, Nils Molin, Eugen Montelin
InventorsSven-Olof Enfors, Nils Molin, Eugen Montelin
Life of this patent
Estimating the term…
Abstract
The disclosure relates to a process for the microbiological modification of hardwood in that a microorganism, or an enzymatically active preparation thereof, specially selected for the hardwood in question, is supplied to the surface of the wood for attack thereof under carefully regulated conditions as regards temperature, relative moisture content, O.sub.2 content and CO.sub.2 content. Thereafter, the process is discontinued in a suitable manner, for example by treatment with steam or hot water, followed by drying; or by drying only.
Claims14
A process for the controlled microbiological modification of hardwood to produce a wood product of high porosity by the action of microorganisms, wherein an aerobic microorganism selected from the group consisting of Armillaria mellea, Xylaria polymorpha, Bacillus polymyxa, and an enzymatically active preparation thereof, specially selected for the hardwood in question, is implanted in a sufficient amount in or on the surface of the wood for attack thereof, and wherein the temperature moisture content in the wood, O.sub.2 content and CO.sub.2 content are adjusted in relation to the selected microorganism or enzymatically active preparation thereof, selective modification of the hardwood being thereby realized, and wherein the process is discontinued in a suitable manner.
Dependencies are inferred from the claim text.