TY  - JOUR
T1  - APPLICATION OF DES (DEEP EUTECTIC SOLVENTS) TO WOOD EXTRACTIVES
AU  - Kılıç-pekgözlü, Ayben
AU  - Ceylan, Esra
PY  - 2019
DA  - December
Y2  - 2019
JF  - Wood Industry and Engineering
JO  - WI&E
PB  - Karadeniz Teknik Üniversitesi
WT  - DergiPark
SN  - 2687-6043
SP  - 52
EP  - 56
VL  - 1
IS  - 2
LA  - en
AB  - Deep eutectic solvents (DES), known as environmentally friendly,recyclable, non-poisonous, low volatile, non-flammable and harmless are firstfound by Abbott et al. in 2003. In the last decade, scientists are working withDES in different areas. Mainly, they focus on isolation of cellulose andlignin. Regard to extractives, to the best of our knowledge DES was not studiedbefore. In this study, it was aimed to determine the extractive composition ofScotch pine with deep eutectic solvents. Pinus sylvestris L. was used as wood material. As deep eutectic solvent (DES) Cholinechloride (Merck 5.00117), ethylene glycol (Merck 1.00949) and urea (Merck1.08487) were used with molar ratio of choline chloride; ethylene glycol (1:2m/m), and choline chloride: urea (1:2 m/m). Sequential soxhelet extraction wasperformed first with n-hexane and then acetone-water with 5 g wood sample for 6hours. With DES two extractions were performed in an ultrasonic (UB) andhot-water bath (HWB) at 60°C for 30 min. 0.05 g wood samples were used forthese extractions. Identification and quantification were done with GC-MS andFID-GC.Similar results were obtained with DES and organic solvents. Fatty acids,resin acids and stilbenes are the main chemical groups. Oleic acid (1.4-9%),linoleic acid (1.6-8%) and levopimaric acid (0.6-17.7%) are dominant compounds,found in all extracts. Also, monomethyl pinosylvin (51.5%) was found inacetone: water mixture. DES can be an alternative to organic solvents in woodextraction.
KW  - Deep Eutectic Solvents( DES)
KW  - Extractives
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UR  - http://dergipark.org.tr/tr/pub/wie/issue//645347
L1  - http://dergipark.org.tr/tr/download/article-file/899805
ER  -