Figure 1. Biochemical characterization of mucins extracted from porcine trachea.

(A-E) Commercially available BSM (BSM_C), commercially available PGM type III (PGM_C), laboratory extracted PGM (PGM_EX), and laboratory extracted PGM (PGM_EX) were characterized to determine (A) % mass DNA content, (B) % mass protein, (C) O-linked glycoprotein content normalized to BSM_C, (D) sialic acid content, and (E) disulfide bond content. Bars indicate mean with error bars for standard deviations and individual measurements are shown as data points. Data set analyzes for statistical significance with Kruski-Wallis statistical test: *p<0.05, **p<0.01, and ****p<0.0001. Comparisons are not significant (p > 0.05) unless noted otherwise.