942 



SUBJECT INDEX 



Illipe butter, 403 

 Incarnatyl alcohol, 367, 383 

 Incipient rancidity, tests for, 285-288 

 Induction period of fats, 287, 288 



effect of antioxidants on, 296 

 Indian laurel seed oil (see Daphne seed 



oil) 

 Indian mustardseed oil, composition, 203 

 Inhibitols, 288-298 (see also Antioxi- 

 dants) 

 acids as synergists for, 297-299 

 /3-Ionone, /3-carotene and, 515 

 )3-Tonylideneacetaldehyde, in vitamin A 



synthesis, 714 

 Inositol, in brain phosphatides, 439, 440, 

 450 

 in soybean phosphatides, 450 

 in tubercle bacilli, 450 

 Insect waxes, 364—368 

 Interfacial tension, fatty acids and, 106, 



107 

 Interesterification, 275-281 

 alcoholysis, 276-278, 281 

 directed, 170, 277, 278, 280, 281 

 ester-ester interchange, 279-281 

 ethanolysis, 276 



for monoglyceride synthesis, 170 

 glycerolysis, 277, 278 

 methanolysis, 276 

 of waxes, 363, 364 

 propanolysis, 276 

 undirected, 279, 280 

 International unit of vitamin D, 781 

 International unit of vitamin E, 819 

 Intestinal wall, glycerophosphatase in, 

 434 

 tocopherols in, 800 

 vitamin A in, 677 

 Inulin, adsorbent action of, 652, 658 

 Iodine, stereoisomerization with, 634- 



636 

 Iodine number, cholesterol and, 334 

 definition, 242 

 discussion, 242-244 

 Hanus method for, 153, 154, 242 

 hydrogenation and, 243 

 low values with elaeostearic acid 



glycerides, 243 

 melting point and, 238 

 of beeswax, 367 

 of candelilla wax, 375 

 of carnauba wax, 374 



Iodine number {continued) : 

 of cephalins, 443 

 of common fats, 236 

 of hydroxynervonic acid, 497 

 of lecithins, 417, 418 

 of monoethenoid acids, 46 

 of nervonic acid, 496 

 of phosphatidic acids, 468 

 of polyethenoid acids, 47 

 Wijs method for, 153, 154, 242 

 Ionic reaction of fatty acids, 112, 113 

 Ipurolic acid, discovery, 27 

 physical constants, 48 

 structure, 28 

 Iris, carotenes in leaves, 519 

 lycopene in flowers, 545 

 lutein in flowers, 557 

 violaxanthin in flowers, 567 

 Iron salts as prooxidants, 300 

 Ironwood nut fat, composition, 206 

 Irradiated yeast, in cattle feeding, 775 

 Irradiation effect on foods, 741, 758, 759 

 Isamic acid, 26 



Ishinagi liver oil, vitamin A in, 676, 688 

 lisoascorbyl monopalmitate, as synergist, 



298 

 Isobixin (see Bixin, stable) 

 Isler synthesis of vitamin A esters, 717, 



718 

 Isoanhydrovitamin A, 738 

 Isocholesterol (see Lanolin) 

 Isodihydroxybehenic acid, from brassidic 



acid, 158 

 Isodihydroxystearic acid, from elaidic 



acid, 158 

 Isoergosterol (see Neosterol) 

 Isogeronic acid, from o-carotene, 534 

 Isomerism (see also Stereoisomers ; Spe- 

 cific Rotation) 

 general types, 84r-86 

 optical, 84 



of diglycerides, 266 

 of fats, 270-274 

 stereoisomerism, 13, 16, 85 



absorption spectrum and, 80, 82 

 melting point and, 53, 54 

 of carotenoids, 621-652 

 of sterols, 336-342 

 of vitamins A, 627, 674 

 Raman spectrum and, 83 

 Isonorbixin (see Norbixin, stable) 

 Isoprene, /3-carotene and, 515, 516 



