Birch Bark


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Birch Bark

 

the outer part of the birch cortex, consisting of easily separated, thin, semitransparent, smooth, white, yellowish, or reddish layers.

The best birch bark is obtained from trunks with a diameter of 20 cm and larger. Such products as tar are obtained by the dry distillation method, and bast boxes, baskets, and dishes are manufactured from birch bark. In ancient times, before the invention of paper, official documents and letters were written on birch bark.

References in periodicals archive ?
Birch Bark Coffee Company--which takes its name from the founder's home community, located within Whitefish River First Nation--produces a line of organic, fair-trade, freshly roasted coffee blends.
Part of what made it so difficult to date was the material it was written on - those dozens of birch bark leaves comprising the fragile paper came from three different time periods, according to (http://www.ox.ac.uk/news/2017-09-14-earliest-recorded-use-zero-centuries-older-first-thought) Oxford University.
published results around the molecular mechanism of the effects of birch bark on keratinocytes [25].
Birch bark contains methyl salicylate, known as oil of wintergreen, which is a combination of salicylic acid (aspirin) and methanol.
The subsequent flight from Ottawa to Calgary was about four hours long and it gave me ample time to contemplate why Pierre's birch bark canoe was so significant to me.
She loves maple syrup and anything made out of birch bark, and has hiked in more than 20 national parks.
Birch bark also contains lupeol, betulinic acid, erythrodiol and oleanolic acid and is a low-cost waste product in the veneer and paper industry that is usually burned.
During the regatta, he presented the Timoteo, langoustines with artichokes smoked in birch bark with zucchini and tomatoes.
This year Adrian and two researchers went to Siberia to see where his father ended up surviving by eating birch bark and butterflies in 1941.
The white coloring of paper birch bark helps make up for its lack of insulating thickness by reflecting sunlight and reducing the potential for damage.
Jim Northrup is a journalist, poet, ex-Marine, birch bark basket maker, and member of the Fond du Lac band of Lake Superior Chippewa, in no particular order.
After overviews of biorefinery technology, the chemistry of primary and secondary plant metabolites, and the separation and purification of phytochemicals as co-products in biorefineries, coverage in the subsequent 12 chapters includes co-products derived from corn, cereal and oilseed, soy, sugarcane processing, citrus fruit processing, leaf protein, for animal feed, algae, Canadian boreal forest, birch bark, pre-pulping extract, and temperate forests.