Figure 2.

Typical amylose and amylopectin CLDs, in terms of the degree of polymerization of the (debranched) chain, obtained by Dr. Kai Wang and Dr. Haiteng Li in the authors’ laboratory. Left panel: amylopectin for a rice sample, obtained by both FACE (points) and SEC (lines). FACE data shown as points, because FACE resolves individual degrees of polymerization. Left panel shows (a) number distribution N_de(X) and (b) SEC weight distribution w(logX) = X² N_de(X); (b) the SEC weight distribution of the same sample, as a line, showing the band broadening that occurs in SEC. Right panel: (c,d) whole weight CLD for a rice sample.