What are lyophilic and lyophobic colloids?

Lyophobic colloids: These are the colloidal solution in which the dispersed phase has very little affinity for the dispersion medium. Lyophilic colloids, the precipitations of lyophobic colloids do not regain their properties. These sols are formed by substances like gums, starch, and proteins. Lyophilic sol can be easily prepared by directly mixing the colloid with the liquid. Hence, Lyophilic Sols are very stable and do not precipitate/coagulate easily. However, the addition of very large quantities of electrolytes can cause particles to precipitate.