918 



SUBJECT INDEX 



Arthropods, cholesterol in, 327 

 Aitichoke leaves, carotenes in, 520 

 Ascorbic acid, antioxidant activity of, 



294 

 Ascosterol in j'east, 361 

 Asparagus berries, physalien in, 563 

 "Association ratio" in various fats, 217- 



219 

 Astacein, 587 

 Astacene, 587, 588 



absorption spectra, 610 



possible stereoisomers, 627 



properties, 604 

 Astaxanthin, 588-591 



absorption spectra, 610 



in retinal pigments of birds, 682 



possible stereoisomers, 627 



properties, 604 

 Aster, flowers 

 • chrysanthemaxanthin in, 569 



lutein in, 557 



lutein epoxide in, 561 

 "Astrol" (see Bntyl alcohol) 

 Asymmetric carbon, definition of, 85 

 A.T.IO (Antitetany substance No. 10) 

 (see Dihydrotachy sterol) 



activated, biopotency of, 781 



as provitamin D, 744, 768 



blood calcium and, 768 



preparation, 767, 768 



structure, 768 

 Auroxanthin, 567, 568 



absorption spectra, 610 



properties, 604 

 Awapara method for vitamin A, 731 

 Azafranillo roots, azafrin from, 600 

 Azafrin, 600-602 



absorption spectra, 612 



derivatives, 601, 602, 



occurrence, 601 



possible stereoisomers, 627 



relation to carotene, 594 



structure, 601 



toluic acid from, 516 

 Azafrin methyl ester, 601, 602 



absorption spectra, 612 

 Azafrinone, 602 

 Azelaic acid, discovery, 42 



occurrence, 44 



physical constants, 49 

 Azelaic acid amides, melting points, 139 



Azelaic acid semialdehyde, as intermedi- 

 ate in oleic acid oxidation, 159, 282 



B 



Bahassu fat, composition, 205 



niyristodilaurin from, 209 



tocopherols in, 798 

 Babies' sHppers, lutein epoxide in. 561 

 Bacteria, )3-carotene in, 525 



7-carotene in, 541 



cryptoxanthin in, 550 



ergosterol in, 357, 358 



fatty acids in, 32-36 



lutein in, 559 



lycopene in, 545 



purple bacterium, 583 

 rhodopin in, 583 

 rhodoviolascin in, 583 



vitamin Ka and, 831, 832 



zeaxanthin in, 562 

 Bacteriopiupurin, 512 

 Baku kernel fat, glyceride composition, 



233 

 Balsam apple, lutein in, 557 

 Balsam flowers, taraxanthin in, 570 

 Bamboo leaves, carotenes in, 519 

 Barbary wolfberry, physalien in, 563 

 Barberry leaves, carotenes in, 520 

 Barium soaps, solubility, 70 

 Barley leaves, carotenes in, 519, 520 

 Barracuda liver oil, vitamin A in, 676. 



689 

 Bass liver oil, vitamin A in, 676 



vitamins D in, 772 



vitamin Da in, 776 

 Basseol, interconversions, 388, 389 



in shea nut oil, 384 

 Bassic acid, as probable triterpene, 386 

 Batyl alcohol, structure, 392 

 Beattie method for choline, 431 

 Beechnut oil, composition, 198 

 Beef fat, J-carotene in, 542 



cholesterol in, 326 



composition, 192. 193 

 random distribution and, 221 



constants for, 236 



glyceride composition, 232, 233 



kitol in, 710 



palmitodi.stearin from, 210 



stearodipalmitin from, 210 



