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

Autor:	Jan-Erik Raitanen, Jarl Hemming, Stefan Willför, Viljem Vek, Primož Oven, Ida Poljanšek
Rok vydání:	2018
Předmět:	040101 forestry 0106 biological sciences Chlorinated solvents Chemistry Pinosylvin 04 agricultural and veterinary sciences 01 natural sciences Biomaterials Residue (chemistry) chemistry.chemical_compound Polyphenol 010608 biotechnology 0401 agriculture forestry and fisheries Organic chemistry
Zdroj:	Holzforschung. 73:475-484
ISSN:	1437-434X 0018-3830
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b898f679e402c3fbb44c1bab8b2cc533 https://doi.org/10.1515/hf-2018-0152 Zobrazit plný text záznamu