Optimising and scaling up hot water extraction of tannins from Norway spruce and Scots pine bark

Boron retranslocation in Scots pine and Norway spruce.

We previously traced 10B-enriched boric acid from shoots to roots to demonstrate the translocation of boron (B) in Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) seedlings. To gain a more detailed understanding of B translocation, we sought: (1) to demonstrate B retranslocation directly, by showing that foliar-applied 10B is located in the new growth after dormancy...

Bioactive and Protective Polyphenolics from Roots and Stumps of Conifer Trees (norway Spruce and Scots Pine)

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Hot water extraction and steam explosion as pretreatments for ethanol production from spruce bark.

Spruce bark is a source of interesting polyphenolic compounds and also a potential but little studied feedstock for sugar route biorefinery processes. Enzymatic hydrolysis and fermentation of spruce bark sugars to ethanol were studied after three different pretreatments: steam explosion (SE), hot water extraction (HWE) at 80 °C, and sequential hot water extraction and steam explosion (HWE+SE), ...

Climatic Adaptation of Seed Maturity in Scots Pine and Norway Spruce Populations

Durability of thermally modified Norway spruce and Scots pine in above ground conditions

One of the main objectives of thermal modification is to increase the biological durability of wood. In this study the fungal resistance of Norway spruce and Scots pine, thermally modified at 1958C and 2108C, was studied with a lap-joint field test. Untreated pine and spruce and pine impregnated with tributyl tin oxide (TBTO) and copper, chromium and arsenic (CCA) were selected as reference mat...