Purification of Crocin-I from Gardenia Yellow by Macroporous Resin Columns In-Series and Its Antidepressant-Like Effect

Figure 4

Effect of bed volume ratio of resins (a), sample volume (b), flow rate (c), and methanol concentration (d) on , , and R during the process of macroporous resin column in series. represents R, represents , and represents .

(a)

(b)

(c)

(d)