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2009_Book_FoodChemistry

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Contents

xxix

14.3.1.1.1 EdibleBeefFat ......................................... 642

14.3.1.1.2 SheepTallow........................................... 643

14.3.1.1.3 HogFat(Lard).......................................... 643

14.3.1.1.4 GooseFat.............................................. 644

14.3.1.2 MarineOils ............................................ 644

14.3.1.2.1 WhaleOil.............................................. 644

14.3.1.2.2 SealOil ............................................... 644

14.3.1.2.3 HerringOil............................................. 644

14.3.2 OilsofPlantOrigin...................................... 644

14.3.2.1 FruitPulpOils.......................................... 645

14.3.2.1.1 OliveOil .............................................. 645

14.3.2.1.2 PalmOil............................................... 646

14.3.2.2 SeedOils .............................................. 647

14.3.2.2.1 Production . ............................................ 647

14.3.2.2.2 OilsRichinLauricandMyristicAcids ..................... 647

14.3.2.2.3 Oils Rich in Palmitic and Stearic Acids . . ................... 648

14.3.2.2.4 Oils Rich in Palmitic Acid . ............................... 649

14.3.2.2.5 Oils Low in Palmitic Acid and Rich in Oleic

andLinoleicAcids ...................................... 650

14.4 ProcessingofFatsandOils ............................... 653

14.4.1 Refining ............................................... 653

14.4.1.1 RemovalofLecithin..................................... 654

14.4.1.2 Degumming............................................ 654

14.4.1.3 Removal of Free Fatty Acids (Deacidification) ............... 654

14.4.1.4 Bleaching . . ............................................ 655

14.4.1.5 Deodorization . . . ....................................... 655

14.4.1.6 Product Quality Control . . . ............................... 656

14.4.2 Hydrogenation.......................................... 656

14.4.2.1 GeneralRemarks........................................ 656

14.4.2.2 Catalysts............................................... 657

14.4.2.3 TheProcess ............................................ 658

14.4.3 Interesterification ....................................... 658

14.4.4 Fractionation ........................................... 659

14.4.5 Margarine–ManufacturingandProperties .................. 660

14.4.5.1 Composition ........................................... 660

14.4.5.2 Manufacturing.......................................... 661

14.4.5.3 VarietiesofMargarine ................................... 661

14.4.6 Mayonnaise ............................................ 661

14.4.7 FatPowder............................................. 661

14.4.8 Deep-FryingFats........................................ 661

14.5 Analysis............................................... 662

14.5.0 Scope ................................................. 662

14.5.1 DeterminationofFatinFood.............................. 662

14.5.2 IdentificationofFat...................................... 663

14.5.2.1 CharacteristicValues .................................... 663

14.5.2.2 ColorReactions......................................... 664

14.5.2.3 Composition of Fatty Acids and Triacylglycerides . ........... 664

14.5.2.4 Minor Constituents . . . ................................... 665

14.5.2.5 Melting Points . . . ....................................... 666

14.5.2.6 Chemometry ........................................... 666

14.5.3 DetectionofChangesDuringProcessingandStorage ......... 667

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