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Review: The value of wood extractives from Pinus radiata


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Singh, S, Stack, KR ORCID: 0000-0002-1188-8522, Richardson, DE and Lewis, TW ORCID: 0000-0001-6891-3840 2019 , 'Review: The value of wood extractives from Pinus radiata' , Appita, vol. 72, no. 2 , pp. 70-81 .

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The wood extractives from softwood species, which include resin acids, fatty acids and triglycerides, haveuseful properties making them valuable as natural products. Their water repellency, adhesive properties andbiological activity make them useful in manufacturing, agriculture and medicine with broader applicationsexpected to be developed in the future with a shift toward renewable resources. These wood extractives canbe problematic in paper manufacture as they cause deposits on machinery and in the paper products, whichrequires higher levels of maintenance, limits water recycling, increases wastewater toxicity and can reduceproduct quality. Current methods for addressing these problems in thermo-mechanical pulp (TMP) andpaper mills include treatment of wood to reduce extractives content prior to pulping, tighter control ofprocesses to prevent formation of deposits, and the use of additives to fix extractives into the paper product.Recovery of the wood extractives from the process water in a reasonably pure form would provide newvalue-added products turning a once troublesome material into something of value for existing pulp andpaper mills.

Item Type: Article
Authors/Creators:Singh, S and Stack, KR and Richardson, DE and Lewis, TW
Keywords: wood resins, natural products, softwoods, thermo-mechanical pulp, bioactivity
Journal or Publication Title: Appita
Publisher: Appita
ISSN: 1038-6807
Copyright Information:

Copyright 2019 Appita

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