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Table 2 The biodegradability of some DESs

From: Recent progress on deep eutectic solvents in biocatalysis

DESs Assay method Resource of microorganism DES concentration (mg/L) Comments Reference
ChCl/Glc (2:1)
ChCl/OA (1:1)
ChCl/Gly (1:2)
Closed bottle test Effluent from an urban wastewater treatment plant 100 Over 60% of biodegradation level after 14 days Radosevic et al. (2015)
20 kinds of NADESs Closed bottle test Fresh lake water 3 All DESs had a biodegradation level over 69.3% after 28 days. The acid-based DESs were degraded slower than others Zhao et al. (2015)
ChCl or ChOAc/U (1:1)
ChCl or ChOAc/Gly (1:1)
ChCl or ChOAc/A (1:1)
ChCl or ChOAc/EG (1:1)
Closed bottle test Activated sludge from wastewater treatment plant 4 Only ChCl/U and ChCl/A were readily biodegradable Wen et al. (2015)
ChCl/EG (1:2)
ChCl/Gly (1:2)
ChCl/U (1:2)
DAC/EG (1:2)
EAC/Gly (1:2)
DAC/MA (1:1)
DAC/ZnN (1:1)
DAC/ZnCl2 (1:2)
Closed bottle test Wastewater from secondary effluent treatment plant 5 All DESs were referred to as readily biodegradable. ChCl-based DESs had higher biodegradability than DAC-based DESs Juneidi et al. (2015)