1) Digitin 
Digitonin is a glycoside obtained from Digitalis purpurea; the aglycone is digitogenin, a spirostan steroid. Used as a detergent, it effectively water-solubilizes lipids. As such, it has several membrane-related applications in biochemistry, including solubilizing membrane proteins, precipitating cholesterol, and permeabilizing cell membranes. Dig...
<protein> See saponin. ... (18 Nov 1997) ... 
See saponin.
Type: Term Pronunciation: dij′i-tō′nin Definitions: 1. A steroid glycoside obtained from Digitalis purpurea that has no cardiac action; used as a reagent in the determination of plasma cholesterol and steroids having a 3-hydroxyl group in beta configuration. 2. A mixture of four different steroids found in the seeds of Digitalis pu...