20.500.12556/RUL-133399 Choline chloride based natural deep eutectic solvents as extraction media for extracting phenolic compounds from chokeberry (Aronia melanocarpa) For the isolation of selected phenolic compounds from dried chokeberries, natural deep eutectic solvents (NADESs) were investigated as a green alternative to conventionally used extraction solvents. Four types of NADESs were synthesised, with choline chloride as the hydrogen bond acceptor in combination with different hydrogen bond donors (sugars, organic acid and urea). Ultrasound-assisted extraction was used to improve the extractability of the phenolic compounds and the results were compared to those obtained with 80% methanol as the extraction media. The highest values of total phenols and total flavonoids were found in the extract obtained with choline chloride–fructose NADES (36.15 ± 3.39 mg gallic acid g$^{−1}$ dry weight (DW) and 4.71 ± 0.33 mg rutin g$^{−1}$ DW, respectively). The extraction recoveries for the individual phenolic compounds depended strongly on the phenolic compound’s structure, with relative mean values between 70% and 97%. natural deep eutectic solvents choline chloride extraction phenolic compounds chokeberries (Aronia melanocarpa) HPLC/DAD green solvents ultrasound-assisted extraction HPLC globoko evtektična topila holin klorid ekstrakcija fenolne spojine aronija HPLC/DAD true false true Angleški jezik Slovenski jezik Članek v reviji 2021-11-25 10:09:10 2021-11-25 10:09:12 2022-09-12 04:16:10 0000-00-00 00:00:00 2020 0 0 14 str. iss. 7, art. 1619 Vol. 25 Apr. 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 547.56:66.061.3 1420-3049 10.3390/molecules25071619 1538563011 RAZ_Islamcevic_Razborsek_Masa_2020.pdf RAZ_Islamcevic_Razborsek_Masa_2020.pdf 1 6402CD92DB443E2AA41A038DCF9962A5 799dac8863893b29f682b14d127dfc350d1f0461ab8dbc465ee996949a839977 775d9049-4dcf-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=151432 https://www.mdpi.com/1420-3049/25/7/1619 1 455d826a-4dcf-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=151431 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0