Optimization for Green Path in Wood Extractives by Taguchi Analysis/Primjena Taguchijeve analize za optimizaciju procesa ekstrakcije drva na nacelima zelene kemije
Extractive composition of Pinus pinaster (Maritime pine) wood was studied with choline chloride based deep eutectic solvents (DES). Two different eutectic mixtures (ChCl: Et-Gly; ChCl: Urea 1:2 molar ratio), two different extraction methods (hot water bath, ultrasound assisted extraction), and tempe...
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Veröffentlicht in: | Drvna industrija 2022-12, Vol.73 (4), p.453 |
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Sprache: | eng |
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Zusammenfassung: | Extractive composition of Pinus pinaster (Maritime pine) wood was studied with choline chloride based deep eutectic solvents (DES). Two different eutectic mixtures (ChCl: Et-Gly; ChCl: Urea 1:2 molar ratio), two different extraction methods (hot water bath, ultrasound assisted extraction), and temperature (40 - 60 [degrees]C), time (30 - 60 min.) and solid.iiquid ratio (1:10 - 1:20 g/mL) parameters were applied. For the optimization of operation conditions, Taguchi analysis was performed. Resin acids formed the chemical composition of Pinus pinaster (Maritime pine) wood. Dehydroabietic acid, abietic acid and isopimaric acid were found to be the major compounds. The impact of parameters on the performance of the system was determined as follows: DES type > solid.iiquid ratio > extraction method > temperature > time. So, for the extraction of lipophilic compounds in Maritime pine wood, the optimum conditions were determined as hot water bath extraction at 60 [degrees]C with ethylene glycol and 1:10 solid liquid ratio for 60 min. KEYWORDS: deep eutectic solvent; Pinus pinaster; resin acids; choline chloride; ethylene glycol; urea; Taguchi analysis U radu su istrazene ekstraktivne tvari drva primorskog bora (Pinus pinaster) izolirane primjenom eutektickog otapala (DES) na bazi kolin klorida. Pritom su primijenjene dvije eutekticke mjesavine (ChCl: Et-Gly i ChCl: Urea, molarni omjer 1:2) i dvije metode ekstrakcije (vrucom vodom i uz primjenu ultrazvuka), pri temperaturi 40 i 60 [degrees]C i s vremenom ekstrakcije od 30 i 60 minuta, uz varijabilni odnos kruto - tekuce 1: 10 i 1: 20 g/mL. Za optimizaciju procesa ekstrakcije primijenjenaje Taguchijeva analiza. Rezultati istrazivanja pokazuju da se ekstraktivne tvari drva primorskog bora (Pinus pinaster) uglavnom sastoje od smolnih kiselina s dehidroabietinskom, abietinskom i izopimarnom kiselinom kao glavnim spojevima. Ustoje utvrden i utjecaj pojedinog parametra na efikasnost procesa ekstrakcije kako slijedi (rangirano od onoga s najvecim prema onome s najmanjim utjecaj em): vrsta eutektickog otapala > odnos kruto - tekuce > metoda ekstrakcije > temperatura ekstrakcije > vrijeme ekstrakcije. Na temelju analize dobivenih podataka odredeni su optimalni parametri za ekstrakciju drva primorskog bora. To su: ekstrakcija vrucom vodom pri 60 [degrees]C, uz upotrebu etilen glikola i omjer kruto - tekuce 1:10 tijekom 60 minuta. KLJUCNE RIJECI: eutekticka otapala; Pinus pinaster; smolne kiseline; kolin klorid; etilen gliko |
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ISSN: | 0012-6772 |
DOI: | 10.5552/drvind.2022.2137 |