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. 2017 Apr 7;22(4):586. doi: 10.3390/molecules22040586

Figure 2.

Figure 2

Effect of types of ILs (a). 1. (Bmim) (OAC), 2. (Bmim) (BF4), 3. (Bmim) (Br), 4. (Bmim) (PF6), 5. (Hmim) (PF6), 6. (Omim) (PF6). Extraction parameters were as follows: 10 g S. doederleinii, IL concentration of 2.0 mmol/L, ratio of solution to raw of 1:10 g:mL, microwave power of 500 W and extraction time of 10 min. Effects of extraction parameters on total biflavones yields of S. doederleinii extracts: (b) Effect of microwave power on total biflavones yields; (c) Effect of solid-liquid ratio on total biflavones yields; (d) Effect of extraction time on total biflavones yields; (e) Effect of ILs concentration on total biflavones yields; (f) Effect of extraction temperature on total biflavones yields.