Extraction of Scots Pine by Polar Solvent
Zhou, Yuanlin (2011)
Saimaan ammattikorkeakoulu
2011
Creative Commons Attribution-NonCommercial 3.0 Unported
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2011121618664
https://urn.fi/URN:NBN:fi:amk-2011121618664
Tiivistelmä
The aim of this thesis was to study, isolate, and analyze the extractives from pine chips, saw dust, root chips, and root barks by polar solvent such as water, acetone, and ethanol. The methods used in the extraction were boiling flask or rotation reactor. The different extraction time of 2 or 4 hour was also investigated. The obtained extraction solution were analyzed by gas chromatography.
In order to understand the experimental work theoretically, the wood chemistry, especially, phenolic extractives of wood was studied from literature. Phenolic extractives are a very large group of chemicals, which consists of many different families of aromatic secondary metabolites in plant. The application of phenolic extractives from wood was widely investigated by the different research groups.
The result showed that extracted at same condition with different raw material, the content of extractives from pine root bark is more than other raw materials. And the longer the extract time the more chemicals can be analysis by the GC analysis from the extracted samples. However, there has no big difference on the content of the extractives where the treatment organic solvent was different.
In order to understand the experimental work theoretically, the wood chemistry, especially, phenolic extractives of wood was studied from literature. Phenolic extractives are a very large group of chemicals, which consists of many different families of aromatic secondary metabolites in plant. The application of phenolic extractives from wood was widely investigated by the different research groups.
The result showed that extracted at same condition with different raw material, the content of extractives from pine root bark is more than other raw materials. And the longer the extract time the more chemicals can be analysis by the GC analysis from the extracted samples. However, there has no big difference on the content of the extractives where the treatment organic solvent was different.