Abstract
Based on gas chromatographic analysis of triacylglycerol composition of 755 different milk fat samples, formulae were derived from statistical evaluations. They allow quantitative detection of greatly differing foreign fat additions to milk fat by insertig defined triacylglycerol contents of a fat to be analyzed. Further, any combination of different foreign fats, consisting. e.g., of a mixture of medium- and long-chain triacylglycerols can be detected by using this method. For the widely varying foreign fat mixtures, limits of detection between 2–5% were established. For 23 different additions (3–15%) of individual vegetable foreign fats or animal depot fats, as well as for 33 foreign fat mixtures (4–7% addition) added to unknown milk fats from varying feeding periods, absolute mean deviations of 0.7–0.8% were found.
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