436 



SUBJECT INDEX 



Oxygen and growth rate, 209 



consumption by growing bac- 

 teria, 73 

 of Bad. coll, 186 



Ps. fluorescens, 187, 398 

 fixation, 173 

 in fermentations, 69 

 position in molecule, 75 

 requirements for fermentation, 

 69, 78 

 growth, 78, 80 

 solubility in water, 80 

 source of, 78, 172 

 supply and endpoint of 



growth, 209, 241 

 toxicity of, 19, 78, 305 

 uptake of starving bacteria, 20 



Protection of living cells by dead, 



318, 338 

 Protein coagulation by heat, 327 

 content of mold mycelium, 244 



yeast, 242, 247, 253 

 fermentations, 56 

 Protein molecules, size of, 260 

 Protein-free diet of animals, 9 



yeast, 13, 383 

 Protein sparing effect of sugar, 159 

 Proteolysis and autolysis, 10 

 Prototrophic fermentations, 61 

 Putrefaction, anaerobic, 59 

 Pyruvic acid as anti-oxidant, 79 



in alcoholic fermentation, 

 44, 50 



R 



Partial functions, definition, 5 

 Partition coefficients of disinfect- 

 ants, 356 

 Pepsin, 23 



Peptone, digestibility of, 210 

 gas from, 76, 174 

 milk, cause of higher acidity 

 in, 148 

 Phenol coefficient, limitations, 353 

 method, 354 



variation with species, 346 

 Physiological salt solution kilUng 

 bacteria, 380 

 youth of bacteria, 288 

 Phosphates, importance in fer- 

 mentation, 38 

 Pin point colonies, 244 

 Poising of reduction potential, 94 

 Poisons causing death, 335 



stimulation, 137, 227, 254 

 mode of action of, 355 

 Potentials in cells, 33, 100, 261 

 Propionic acid fermentation, 52 



Tn, definition, 85, 90 

 Rancidity of coconut oil, 159 

 Reductase, 65 



Reductase test in milk, 94, 95, 99 

 Reduction capacity, 94 

 Reductions, energy balance of, 72 

 Reduction intensity, 83, 94 

 potential and acidity, 88 

 hydrogen activation, 66 

 pressure, 85 

 buffering of, 94 

 capacity of, 100 

 indicators, 92 

 loss by old cells, 84, 203 

 measurements, 82, 92 

 poising of, 94 

 of B mycoides, 84 

 B. subtilis, 84 

 Bad. coli, 82, 84, 86, 101 

 Bad. proteus, 86 

 Corynebaderium, 87 

 culture media, 85, 97 

 hydrogen hberation, 85, 

 89 



