632 FRACT1CAL ORGANIC AND BIO-CHEMISTRY 



Phytin, 310, 311. 



Phytochlorins, 522, 523, 525, 529. 

 Phytol, 519, 520, 525, 528, 529. 

 Phytorhodins, 522, 523, 525, 529. 

 Phytosterols, 320, 321, 322. 

 Picene, 334. 

 Picolines, 309. 

 Picolinic acid, 309. 

 Picric acid, 245, 273, 335. 



in iodoform, 62. 



protein precipitant, 369. 



test, creatinine, 171. 



glucose, 192. 



Pigmented chalk stones, 431. 

 Pigments of leaves, 519-532. 



- urine, 564. 

 Pilocarpine, 285. 

 Pinanes, 317. 

 Pinene, 312, 317. 

 Pinitol, 310. 

 Piperic acid, 352. 

 Piperidine, 308, 352. 

 Piperine, 308, 351, 352. 

 Piria's test (tyrosine), 268. 

 Pitch, 241. 



Plant nucleic acids, preparation, 302. 

 Plants, coagulable proteins, 450-451. 

 Plasmine of Denis, 439. 

 Plasmon, 460. 



Plattner's crystallised bile, 326. 

 Pleated filter paper, 15. 

 Polar imeter, 216-220. 

 Polarisation, circular, in. 

 Polyhydric alcohols, 173. 

 Polymerisation, acetone, 89. 



- aldehydes, 81-82. 

 Polymers, aldehydes, 276. 

 Polymethylenes, 237. 

 Polypeptides, 363, 364, 37, 407, 48. 

 Polysaccharides, 183, 184, 188, 189, 205- 



213. 374- 



estimation, 236. 

 Polyterpenes, 313, 318. 

 Potassium, estimation, 548-550. 

 Potatoes, 205. 



Precipitation colloids, 380, 384, 386, 389. 



reactions of proteins, 365, 368-369. 



solids from solution, 26-27. 

 Preparation of enzymes, 392-393. 



pure compounds, 3-27. 



Prevention of blood toagulation, 439. 

 Primary alcohols, 68, 69. 



amines, 124, 126, 129, 248, 249. 



- proteoses, 372, 373. 

 Pro-enzymes, 394. 

 Prolamins, 364. 



Proline, 138, 139, 304, 305, 306, 361, 362. 



betaine, 150. 

 Propaldehyde, 80. 

 Propane, 49. 

 Propionic acid, 98. 

 Propyl alcohol, 68, 80, 98. 



aldehyde, 80. 



- piperidine, 352, 353. 

 Prosthetic group, 465, 468. 

 Protagon, 176. 



Protamine nucleate, 300, 433. 

 Protamines, 165, 299, 364, 432-433. 



Proteinochrome reaction, 348. 



Proteins, 17, 78, 137, 164, 165, 259, 264, 267, 

 284, 299, 300, 301, 304, 305, 306, 361- 

 373. 374, 382, 391, 397-398, 432-515. 



action of enzymes, 391, 393, 395, 405- 



410, 421-425- 



bmret reaction, 365-373. 



classification, 364. 



composition of, 361. 



constitution of, 363. 



derivatives of, 364. 



digestion of, 397-398. 



estimation of, 38, 369, 445, 575-576. 



general reactions of, 365-369. 



hydrolysis of, 362, 370. 



in bile, 429. 



blood, 438-445. 



serum, 443-445- 



cereals, 452-453. 



^ egg-white, 436-437. 



yolk, 464. 



fruits, 450. 



gastric contents, 427. 



- meat, 447-448. 



milk, 446, 457, 460, 575. 



muscle, 447-448. 



plant seeds, 450-453. 



saliva, 468-469. 



tissues, 449. 



urine, 571-572. 



vegetables, 450. 



- putrefaction of, 342, 344, 346, 347, 391. 

 Proteoclastic 1 enzymes, 363, 394, 395, 396, 

 Proteolytic j 406, 447. 



Proteoses, 364, 370, 371-372, 395, 398, 406, 

 409, 410. 



deutero, 373. 



primary, 372-373- 



secondary, 373. 



separation, 372-373. 

 Prothrombin, 438, 439. 

 Protocatechuic acid, 271, 341. 

 Protoproteoses, 372-373. 



Prussian blue, 29, 153, 156, 157, 158, 

 Prussiates of potash, 157, 158. 

 Prussicacid, 153, see Hydrogen cyanide. 

 Pseudoglobulin, 443, 444. 

 Pseudomucins, 468, 470. 

 Pseudomuscarine, 128. 

 Pseudo-uric acid, 280, 288. 

 Psylla-stearylalcohol, 70. 

 Ptomaines, 351. 

 Pulegone, 315, 316. 



Purification of organic compounds, 4, 17. 

 Purine, 276, 286. 



metabolism, 298. 



- ring, 284. 

 Purines, 282, 286-298. 

 Purpurin, 334. 



Putrefaction, proteins, 284, 342, 344, 346, 



347, 391, 398- 

 Putrescine, 125, 569. 

 Pyridine, ro, 241, 276, 305, 307-308. 



derivatives, 308-309. 

 Pyrimidine, 276, 282, 284. 

 Pyrimidines, 282-283, 299. 

 Pyrocatechin, 261-262. 

 Pyrogallic acid, 270, 



