Premium
White Birch Trunk Extracts as a Source of Organic Compounds
Author(s) -
Strehmel Nadine,
Strunk David,
Strehmel Veronika
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201700368
Subject(s) - chemistry , bark (sound) , mass spectrometry , chromatography , ionic liquid , electrospray ionization , electrospray , organic chemistry , physics , acoustics , catalysis
Extracts of white birch ( Betula pendula ) may be a useful source of aromatics, polyols, and fatty acids. Ultra performance liquid chromatography/electrospray ionization‐quadrupole time‐of‐flight mass spectrometry (UPLC/ESI(−)‐QTOFMS) and gas chromatography/electron impact‐quadrupole mass spectrometry (GC/EI‐QMS) were applied to analyze the soluble fractions obtained after the sequential extraction of the bark and interior wood of a white birch trunk using methanol and the ionic liquid 1‐butyl‐3‐methylimidazolium chloride. Methanolic extracts of both the bark and interior wood contained diarylheptanoids and polyols. By contrast, fatty acids were found only in the methanolic extracts of interior wood. Additional diarylheptanoids, 3‐ O ‐caffeoyl‐betulin, and smaller phenolic compounds were extracted with the ionic liquid. Surprisingly, the ionic liquid extracts included additional compounds, which may be have formed in a reaction of the ionic liquid. The use of the bark resulted in more soluble material. Thus, this bark may be preferred as a renewable resource for organic materials.