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Saturated Hydrocarbons in Fatty Tissue of Beef Heart
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- Saturated Hydrocarbons in Fatty Tissue of Beef Heart
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- Saturated hydrocarbons were extracted from fatty tissue of beef heart and identified by combined gas chromatography-mass spectrometry. A complete series of normal alkanes from C₁₄ to C₃₅ was identified together with three isoprenoid hydrocarbons, 2, 6, 10, 14- tetramethylpentadecane (pristane), 2, 6, 10, 14- tetramethylhexadecane (phytane), and 2, 6, 10- trimethyltridecane. In addition, a C₁₇ branched alkane with an isoprenoid-like fragmentation pattern was identified but the spectrum could not be matched with that of a C₁₇ isoprenoid hydro-carbon reported in sediments. The distribution pattern of the ṉ-alkanes is very similar to that reported in pasture plants, indicating that the ṉ-alkanes are derived from the steer's diet. The isoprenoids have not yet been reported in plant tissues, suggesting that they might be produced in the steer from the phytol side chain of chlorophyll a.
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