Isolation of pure pinosylvins from industrial knotwood residue with non-chlorinated solvents

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Ida Poljanšek, Primož Oven, Viljem Vek, Jan-Erik Raitanen, Jarl Hemming, Stefan Willför
Förläggare: Walter de Gruyter GmbH
Publiceringsår: 2019
Tidskrift: Holzforschung
Volym: 73
Nummer: 5
Artikelns första sida, sidnummer: 475
Artikelns sista sida, sidnummer: 484
ISSN: 0018-3830
eISSN: 1437-434X


Abstrakt

The aim of the study was to find appropriate non-chlorinated solvent systems for the extraction and separation of pure pinosylvin (PS) and pinosylvin monomethylether (PSMME) from Scots pine/Norway spruce wood residues. The extraction was performed in a pressurized solvent extractor and the purification and isolation of pure substances was done by flash chromatography. More precisely, pure PS was isolated via sequential flash chromatography in two repetitions in the gradient mode of the mobile phase, with cylcohexane (CX) and ethylacetate (EtOAc), beginning with 100% CX and ending up with 100% EtOAc. The extractives were qualitatively and quantitatively analyzed in terms of PS and PSMME contents by gas chromatography-flame ionization detector (GC-FID), gas chromatography-mass spectrometry (GC-MS), high-performance liquid chromatography (HPLC) and proton nuclear magnetic resonance (1H-NMR) spectroscopy.


Nyckelord

Extraction, knotwood, non-chlorinated solvents, pinosylvin

Senast uppdaterad 2020-28-05 vid 03:57