INDEX 



489 



Inositol as growth factor, 105, 108 



— in bios, 100 



— in phosphatides, 375, 379, 380 



— relation to streptomj^cin, 182 

 Insulin, conversion to antigen, 41-1 



— non-antigenicity, 399, 400 

 Invertase, 40 



— inhibition, 49 



— purification. 45 



— specificity, 51 

 lodinin, 167", 392 

 lodo-proteins, 414 

 Ionic product, 6. 7 



determination , 7 



lonisation, degree of 7 



— of acids, 5, 7 



— of bases, 6 



— of water, 5, 7 

 Ions, activity, 5 

 Iron bacteria, 70 



metabolism, 74 



Isomerase, 212, 276, 320 

 Isopropanol, fermentation product , 



318 



— oxidation to acetone, 74, 242 

 Itaconic acid, 285 



Johne's bacillus, nutrition of, 87 

 vitamins in, 113 



Kala-azar, chemotherapy of, 129 

 Kanten, 417 

 Kephalin. 381, 403 



— in antisera, 428 

 Keratm, as antigen, 400 

 a-Keto-acids, 230 



— in protein synthesis, 340 

 P-Keto-acids, 232 

 2-Ketogluconic acid, 242, 244 

 5-Ketoglutaric acid, 242 

 a-Ketogluconic acid, 230 

 2-Keto-Z-gulonic acid, 244 

 y-Ketopentadecoic acid, 285 

 Klebsiella 'pneiimonke , carbohydrates 



of, 354, 358 

 Kojic acid, 163, 171, 289, 294, 300 



detection, 468 



Krj^toxanthin, 390 



L+dose of toxin, 442 



L^ dose of toxin, 442 

 Lactase, 39 

 Lactic acid, 245 



as hydrogen donator, 194, 196, 



208, 209 

 bacteria, 318 



— — b^eakdo^^^l to propionic acid, 



254 



detection, 466, 468 



enzyme, 212, 321 



enzymic breakdown, 135 



fermentation, 249, 318 ef seq. 



— phosphorylation, 249, 320 



— — formation, 208, 246 



production by fungi, 247, 248, 



251, 282, 284, 293 

 Lactic dehydrogenase, 212 

 Lactobacillus acidophilus, action of 



sulphonamides on, 140 



cholesterol in, 377 



fatty acids in, 371 



phosphatides of, 381 



— arabinosus, amino-acid require- 



ments, 216 

 — • — growth factors for, 104, 110, 

 112 



— bulgaricus, 319 



— casei, 146, 319 



growth factors, for 104, 1 10, 



112, 113 



— delbmckii, 41, 43, 248, 319 

 glyoxalase in, 321 



growth factors for, 110, 112 



— ■ — pjTuvic oxidase in, 43 

 " yellow enzyme " in, 41 



— drug resistant strains, 153 



— growth factors for, 105, 110, 116, 



119 



— use in assay of growth factors, 116 



— pentoaceticus, 321 



adaptive enzymes of, 93 



Lactoflavin-5-phosphoric acid, 42 

 Laurie acid, 369 

 Lecithin, 378, 381, 403 



— in antisera, 428 

 Lecithinase, CI. welchii a-toxin, 50 

 Leishmania, chemotherapy of, 130 

 Lentinus lepideus, 307 

 Leprosinic acid, 374, 375, 377 

 Leprotin, 390 



