Advances in Lipid Methodology. Volume 5 by R.O. Adlof (Eds.)

By R.O. Adlof (Eds.)

The 5th quantity within the Advances in lipid technique sequence is the 1st with new editor, Richard O. Adlof, yet its targets are nonetheless these of the former editor, William W. Christie: 'To supply readable, updated stories of speedily increasing components of lipid research and functional examples which might be of quick use to lipid analysts'.

As within the earlier volumes of Advances in lipid method, the editor has selected prime overseas specialists to jot down person chapters. quantity five includes 4 chapters on particular methodologies of lipid research and 3 which describe particular purposes or standardization of methods.

The methodologies are diverse scanning calorimetry for the examine of actual homes of fat and oils; silver ion chromatography; atmospheric-pressure chemical-ionization mass spectrometry (APCI-MS); and supercritical fluid chromatography (SFC).

Chapters on particular functions hide the research of genetically changed oils and using fatty acid profiling within the characterization of metabolic ailments. one other bankruptcy presents an summary of the professional common equipment used for fat and oils research and offers vast listings of knowledge on criteria companies

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Haryati, T, Che Man, YB and Swe, PZ (1997a) Effect of repeated heating on thermal behavior of crude palm oil. Journal of the American Oil Chemists’ Society, 74, 393–396. Haryati, T, Che Man, YB, Asbi, A, Ghazali, HM and Buana, L (1997b) Determination of iodine value of palm oil by differential scanning calorimetry. Journal of the American Oil Chemists’ Society, 74, 939–942. Hassel, RL (1976) Thermal analysis: An alternative method of measuring oil stability. Journal of the American Oil Chemists’ Society, 53, 179–181.

Silver ion chromatography is performed predominantly in conjunction with two techniques, thin-layer (TLC) and column chromatography, including both low (or normal) pressure and high-performance liquid chromatography (HPLC). It is worth noting that the first reports on the utilization of TLC and normal pressure column chromatography in lipid analysis appeared simultaneously in the same issue of Chemistry and Industry (London) in 1962. HPLC was first introduced in 1975 (Hammond, 2001). In the past 10 to 15 years, new techniques such as solid-phase extraction (SPE) (reviewed by Christie, 1992) and supercritical fluid chromatography (SFC) (reviewed by Laakso, 1992, 1996) in silver ion mode have been utilized in lipid analysis, providing some interesting applications.

Scatter plot showing DSC induction time versus antioxidant concentration (a) rosemary extract; (b) tocopherol; and (c) sage extract. ANALYSIS OF EDIBLE OILS BY DSC 33 induction time with increasing antioxidant concentrations is best fitted by linear or polynomial equations. These calorimetric results indicate that DSC is a valuable technique in the development and optimization of an antioxidant system for vegetable oils. This work could contribute to the selection of an appropriate antioxidant (or combination of antioxidants) at optimum level for various vegetable oils.

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