Research Article

Optimization on Preparation Conditions of Salidroside Liposome and Its Immunological Activity on PCV-2 in Mice

Figure 1

Response surface (3D) and contour plots showing the interaction of different factors on the response . (a) The interaction of ammonium sulfate concentration and ethanol injection volume, (b) the interaction of ammonium sulfate concentration and temperature, (c) the interaction of ammonium sulfate concentration and ethanol injection rate, (d) the interaction of ethanol injection volume and temperature, (e) the interaction of ethanol injection volume and ethanol injection rate, and (f) the interaction of temperature and ethanol injection rate.
(a)
(b)
(c)
(d)
(e)
(f)