Naturally derived commercial surfactants differ in composition of surfactant lipids and in surface viscosity.

@article{Rdiger2005NaturallyDC,
  title={Naturally derived commercial surfactants differ in composition of surfactant lipids and in surface viscosity.},
  author={Mario R{\"u}diger and Angelika T{\"o}lle and W. Meier and Bernd R{\"u}stow},
  journal={American journal of physiology. Lung cellular and molecular physiology},
  year={2005},
  volume={288 2},
  pages={L379-83}
}
Pulmonary surfactant biophysical properties are best described by surface tension and surface viscosity. Besides lecithin, surfactant contains a variety of minor lipids, such as plasmalogens, polyunsaturated fatty acid-containing phospholipids (PUFA-PL), and cholesterol. Plasmalogens and cholesterol improve surface properties of lipid mixtures significantly. High PUFA-PL and plasmalogen content in tracheal aspirate of preterm infants reduces the risk of developing chronic lung disease… CONTINUE READING