SUBJECT INDEX 



1065 



Xanthophyll (continued): 



effect of vitamin A on deposition, 448 



in cow's blood, 457 



in egg, 562-564 



in milk, 555 



in photoreception, 575 

 Xanthophyll oxidase, 440 

 Xanthosis diabetica, 465 

 Xerophthalmia, 596, 601, 602, 604 

 X-irradiation, EFA and protection against, 

 822, 823, 860, 932 



effect of sex on fat-protection against, 

 805 



effect of tocopherol on injury, 

 effect on lipogenesis, 39, 40 

 linolenic acid and, 186, 187 

 monoethenoid acid and, 798 

 peroxide formation following, 1 i 

 ??i-Xylene, metabolism of, 341 

 XyUc acid, excretion of, 342 



Yeast, acetj'l-CoA in, 15, 28, 32 



r28 



Yeast (continued): 



alcohol dehydrogenase in, 453 



and hver injury, 730, 731 



biosynthesis of fat in, 12, 270 



condensing enzyme in, 170 



ergosterol in, 629, 631 



gh'cerol production bj', 45 



hj-drogenation in, 99 



squalene in, 323 



steroid synthesis in, 270, 396, 416 



utilization of acetate by, 271, 277 

 Yellow fat disease, 730, 898 

 Yellow fat of hogs, trienoic acid in, 185 



Zamene, 325 



Zeaxanthin, absorption, 429, 439 



biopotency, 535 



distribution, 476, 479, 487, 488, 501, 

 503-505 



effect on carotene absorption, 428 



in egg, 564 



