964 



SUBJECT INDEX 



Pig fat (continued) : 



glyceride composition. 233 



random distribution in, 221 



trienoic acid in, 192 

 Pigeon, retina, astacene in, 588 

 Pigment of Kuhn (see Crocetin dimethyl 



ester, labile) 

 Pike, kitol in, 710 



vitamin Ai and A2 in, 679 

 Pimelic acid, discovery, 42 



physical constants, 49 

 Pimento (see Paprika) 

 Pin-clover, carotenes in, 520 

 Pineapple, lutein in, 558 

 Pine leaves, Monterey, carotenes in, 519 

 Pink grapefruit, lycopene in, 544 

 Piquia fat, "association ratio" of fatty 

 acids in, 218, 220 



glyceride composition, 232 

 Pistachio nut oil, composition, 200 

 Pituitary, tocopherols in, 800 

 Placenta, /3-carotene in, 524 



provitamin D in, 747 



tocopherols in, 799 

 Plankton, ergosterol in, 356 

 Plant waxes, 372-383 

 Plantain, leaves, carotenes in, 518 

 Plasmalogens (see Acetal -phosphatides) 

 Platanolic acid, in tree bark waxes, 379 

 Platycodigenin, as probable triterpene, 



386 

 Plum, phytofluene in, 663 

 Plum kernel oil, composition, 198 

 Plumbagin, vitamin K biopotency, 850, 



851 

 Poise, definition, 107 

 Polenske number, definition, 246 

 Pollack liver oil, vitamin A ester in, 689 



vitamins D in, 772 



vitamin D3 in, 776 

 Polybromide number, definition. 69 

 Polyethenoid acids. 17 

 Polyhydric palmitate esters, 122 

 Polymer formation, in oxidation of fats, 



300, 301, 303, 304 

 Polymolecular films. 76 

 Pohanorphism, in alcohols. 316, 317 

 of fats, 248-269 

 of fatty acids, 94-99 

 Pondweed, rhodoxanthin in, 573, 574 

 Poppy, carotenes in, 521 

 eschscholtziaxanthin in, 586 

 phytofluene in, 662 



Poppyseed oil, as drying oil, 301 



composition, 198 



constants, 236 



tocopherols in, 798 

 Porbeagle liver oil, vitamin A in, 675 

 Poriferasterol, 347 

 Porphyropsin, 681 



in anadromous fishes, 682, 683 



in catadromous fishes, 682, 683 

 Porpoise oil, oleyl alcohol in, 311 



palmityl alcohol in, 308 



Reichert-Meissl value, 246 



stearyl alcohol in, 308 

 Portuguese laurel cherry kernel oil, com- 

 position, 198 

 Potassium vitamin Ki hydroquinone di- 



sulfate, biopotency, 855 

 Potato beetle, astaxanthin in, 591 

 Potato leaves, carotenes in, 518 

 Pot -marigold flowers, carotenes in, 521 



lycopene in, 545 



rubixanthin in, 553 

 Poulsson unit for vitamin D, 782 

 Primex, tocopherols in, 798 

 Pristane. 402 



Privet tree bark wax, 379 

 Pro-7-carotene, as precursor of -AW-trans, 

 541, 542 



ri,s'-peak, extinction coefficient, 648 



molecular extinction coefficient, 619 



molecular extinction curve, 649 



occurrence. 522. 541, 542, 624 



structure, 541, 651 

 Prolycopene, as precursor of lycopene, 

 541, 542 



ci.s-peak in, 646 



extinction coefficient, 648 



molecular extinction coefficient, 619 



molecular extinction curve, 649 



formula, 630 



occurrence, 522, 547, 624 



stereoisomerization by iodine, 636 



structure, 547, 651 

 Prooxidants. definition. 299 



examples, 300 

 Propanedioic acid (see Malonic acid) 

 Propanolysis, 276 

 o-Propenylphenol. \itamin E biopotency, 



825 

 Prophylactic unit for vitamin D, 782 

 Propionic acid, melting point, 50 



molecular volume, 102 



