M. Daugavietis
Monday 5 August 2013 by Libadmin2013

References: 13th SGEM GeoConference on Water Resources. Forest, Marine And Ocean Ecosystems, www.sgem.org, SGEM2013 Conference Proceedings, ISBN 978-619-7105-02-5 / ISSN 1314-2704, June 16-22, 2013, 787 - 790 pp


The report deals with the Latvian experience and pre-conditions for utilizing tree foliage as a valuable non-wood component of wood biomass.
According to the experience gained in Latvia, a complex approach lies at the basis of economically feasible utilization of tree foliage, using waste-free technologies for extracting biologically active compounds from tree foliage and dividing the extracts into functional groups for use in food industry, pharmacy, fodder and other fields.
Regarding sustainable high-volume processing of tree foliage, we are in a position to run a facility consuming 500-600t/yr. of raw material with the transportation distances no higher than 30km.
Specified are quality requirements for coniferous foliage as raw material for processing industry.
It is pointed out that before starting quantity processing of tree foliage it is necessary to evaluate foliage resources, foliage chemical composition, and the impact of full tree biomass removal from cutting areas on the productivity of future forests, including foliage product market research.
As the experience gained in Latvia shows, tree foliage is to be regarded as a valuable vegetable origin raw material for recovering biologically active substances.

Keywords: non-wood tree products, tree foliage, using value, biologically active products, preconditions for utilization

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