Main > PEDIATRICS > Pneumology > Respiratory Distress Syndrome > Treatment > Surfactants. > PorActant Alfa > NonGeneric PorActant Alfa > Patent. > Claims > Claim 1: Animal Lung Surfactant: > a) Polar PhosphoLipids (98.5-99%); > PhosphatidylCholine (>70-75%) > DiPalmitoylPhosphatidylCholine > (40-45%) & b) Hydrophobic Low MW > (3-14 KD) Proteins (<1.5%). Claim > 2: Prepn. Process: a) Triturate > Animal Lungs; b) Wash Triturated > Lungs in Salt Soln & Filter Off > Filtrates=Solid Fraction (SF). c) > Centrifuging SF. d) Extract with > Organic Solvent. e) Evaporate Solve > nt & f) Recover Polar Comp. by

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nt & f) Recover Polar Comp. by's subsections
Gel Chromatography. Claim 3: (f)

nt & f) Recover Polar Comp. by's products
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