SUBJECT INDEX 



659 



Calcium, 124, 125, ;^27 



ascorbil- ac-iil and, 319-322, 392 



in SCUIV3', 293, 365 

 Camphorsul funic acid, 



in sei)aration of biotin isomers, 574 

 Capillaries, 



in scurvy, 286-289, 362, 373 

 Caproic acid, 581 

 Caprylic acid, 581 

 Carbamyl-L-glutamic acid, 



in citrulline synthesis, 581 

 Carbohydrates, 



absorption of, 315 



ascorbic acid and, 315-317 



biotin and, 565, 576, 588, 616 

 Carbonate, 



ascorbic acid and, 392 

 Carbon dioxide, 466 



biotin and, 577-581 



in ascorbic acid synthesis, 220-221 



in aspartic acid synthesis, 576-577 



in citrulline s\nthesis, 581 



requirement for, 456 

 Carbon tetrachloride, 424 

 6-Carboxy-L-ascorbic acid, 195 

 Carotene, 3, 94, 95, 325, 326 



determination of, 87-99 



occurrence of, 100-106 

 a-Carotene, 92, 101 

 /3-Carotene, 92 



as color standard, 88 



conversion to vitamin A, 82 



definition of unit, 99, 171 



human requirement for, 172 



occurrence of, 101 



properties of, 100 

 6-mono-cis-/3-Carotene, 23 

 7-Carotene, 92, 101 

 All-<rans-7-carotene, 86 

 ei-Carotene, 24 

 Carotene oxidase, 83 

 /3-Carotenin, 23 

 Carotenoids, 



absorption spectra of, 15-17 



biological activity of, 17-21, 86 



chemistry of, 4-25 



conversion to vitamin A, 24-25 



degradation products of, 9-11, 18-19 



isolation of, 5-8 



relation to ascorbic acid synthesis, 221 



stereoisomerism of, 11-17 



synthesis of, 21-24 



transport of, 83 

 Caroto-albumin, 83 

 Carr-Price reaction, 87, 96, 97 



sources of error in, 89 

 Cartilage, 



in scurvy, 281-282 

 Casein, 422, 518 



iodinated, 454 



purification of, 513-514 

 Catalase, 61, 279, 343 



ascorbic acid and, 238 

 Cathepsin, 



ascorbic acid and, 238 

 Catechol oxidase, 225, 226 

 Cattle, see also Ruminants 



vitamin A requirements of, 167 

 Cellulose, 273, 308 

 Cerebrosides, 286, 311 

 Ceric sulfate, 



in vitamin B12 assay, 450-451 

 Cevitamic acid, 350 



see also Ascorbic acid 

 CF, see Citrovorum factor 

 Chickens, 



in vitamin B12 assay, 452-453 



vitamin A requirements of, 169 



vitamin B12 deficiency in, 489-490 



vitamin B12 requirement of, 507-513 

 Chloramine-T phosphate reagent, 450, 



452 

 Chloramphenicol, 



in pernicious anemia, 499 

 Chloretone, 202, 223, 306, 387 



ascorbic acid synthesis and, 214-215 

 Chloroacetic acid, 544 

 p-Chloromercuribenzoate, 69 

 Chloromycetin, see Chloramphenicol 

 Chlorophyll, 7-8, 94, 101 



relation to ascorbic acid, 213 

 Chloroplasts, 212-213 

 Cholesterol, 124, 346 



in biotin deficiency, 604, 606-608 



in scurvy, 297, 318-319, 374 

 Choline, 484, 497, 517 



fatty liver and, 423-424, 606-607 



in scurvy, 318 



