publication . Conference object . 2013

Selective Solvents for Extraction of Triterpenes from Betula Pendula Outer Bark

Pāže, A; Zandersons, J; Rižikovs, J; Dobele, G; Jurkjāne, V; Spince, B;
Open Access English
  • Published: 01 Jan 2013
  • Country: Latvia
Abstract
The volume of birch plywood production in Latvia is illustrated by the 208 000 m3 of plywood sold in 2011 and about 562 000 m3 of processed birch veneer blocks. Wood residues such as bark, veneer shorts, cut off ends and others are used as a fuel. It would be more expedient to increase the birch wood utilisation degree by involving also birch outer bark in the processing cycle. It makes up 2% of the veneer blocks’ mass. At the J.S.C. “Latvijas Finieris”, about 6000 t per year of graded and milled outer birch bark could be produced for further processing. Birch outer bark consists of triterpenes, suberine, lignin and sugars, the content of which is ~35%, ~45%, ~9...
Subjects
free text keywords: birch outer bark, triterpenes, extraction, hydrocarbons
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