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. 2019 Mar 3;11(3):409. doi: 10.3390/polym11030409

Figure 2.

Figure 2

Deproteinization rates of (a) betaine HCl-urea, (b) ChCl-urea, (c) ChCl-ethylene glycol, and (d) ChCl-glycerol at shrimp shell/NADES ratios of 1:5, 1:10, 1:15, and 1:20.