Free Fatty acids and sterols in swine manure.

  title={Free Fatty acids and sterols in swine manure.},
  author={John H. Loughrin and Ariel A. Szogi},
  journal={Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes},
  volume={41 1},
Free fatty acids and sterols were assessed in fresh manure and anaerobic lagoon sludge from swine production facilities in North Carolina. Eight free fatty acids and five sterols were identified and quantified in both manure and sludge samples. Compound identification was performed by gas chromatography/mass spectroscopy (GC-MS), and compound quantities were determined by gas chromatography after solid phase extraction with a 50:50 mixture of diethyl ether and hexane. The free fatty acids… CONTINUE READING