Figure 5.

Concentration of the major suberin monomers during the purification of suberin from the periderm of wound-healing potato tuber slices. A, Glycerol; B, α,ω-dicarboxylic acids; C, ω-hydroxy fatty acids; D, hydroxycinnamic acids. The values in A are means of three determinations, and the values in B to D are means of two determinations. The isolated periderm was purified as in Figure 4 by 1, a cold water wash; 2, cellulase and pectinase treatments; 3, exhaustive extractions with organic solvents; and 4, extraction with dioxane:H₂O. The figures above the bars indicate the relative changes in percent, with the enzyme-treated periderm sample corresponding to 100%.