In addition to cellulose, hemicellulose and lignin, trees produce substances that can easily be technologically extracted with solvents. These extractives are chemically diverse and have, above all, a high pharmaceutical application potential. However, little is known about the distribution of different substance groups along the aerial parts of a tree. In a new publication the dependence of the distribution of different substance groups of the silver birch (Betula pendula ROTH.) on the tree height and the type of tissue was statistically investigated. It was found that the contents of the extracted substances tend to increase with tree height. Strong branches represent an additional source. For technically relevant applications, larger sample sizes are to be investigated further.
Contact: Dr. Joern Appelt
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