S. Pörschmann, J. Pörschmann, L. Liebetrau, I. Kühn, R. Pätz
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Gas chromatographic analysis of free fatty acids. Part 2: Determination of free fatty acids during anaerobic putrefaction
By using tailor-made capillary columns the changes of the free fatty acid spectrum during anaerobic putrefaction of piggery waste and sludge at pH 5.0–5.5 were examined. Free fatty acids with 18 to 22 carbon atoms were the main components before putrefaction. With progressive fermentation time the share of short chain acids formed from higher acids was increased.
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