- A3 - 



Mass • Thermal Destruction of Bacterial Spores and Heat Labile 

 Vitamins in the Temperature Range of 250 to 300 U F ^ To study 

 destruction rates, and factors which influence destruction of 

 bacterial spores, and heat labile vitamins at temperatures of 

 250 to 300°F. 



Agr. Engin. 48 



Mich* Antibiotics in Foods and Food Plants. — III. Substances 

 Derived From Higher Plants With Specific Antagonism to 

 Mycobacterium Tuberculosis , To discover, purify, and isolate 

 substances with properties antagonistic to M. tuberculosis . 

 Hort. 33-3, Coop., Mich. Dept. of Health 



Mich. Thermal Resistance of Vegetative_ Cells and Spores of 



Microorganisms . (1) Design an apparatus to accurately control 

 processing of food spoilage microorganisms by wet stem, 

 superheated stem, and hot, dry gases; (2) obtain reliable data 

 on resistance of food spoilage microorganisms to wet steam, 

 and superheated stem; (3) explain differences in thermal resistance 

 of microorganisms to dry and wet heat. 

 Agr. Engin. 830 



N. T. Biochemical Transformations of Soil Nitrogen . To determine 

 (Cornell) effect of low temperatures on biochemical N transformations, 

 and make experiments on nitrification using a modified soil 

 perfusion apparatus which maintains both temperature and pH. 

 Agron. 45 



N. Pale. The Amino Acid Sequence of the Antibiotic Circulin . Learn 



arrangements of the amino acids that make up the circulin molecule. 

 Bact. 8-3 



Okla. The Effect of Additives on Microbial Soil Transformation . 

 To (l) determine effect of DDT, toxaphene, malathon, dieldrin, 

 and 2-4D on these microbial transformations: denitrification 

 and nitrate reduction, symbiotic N-fixation, non-symbiotic N- 

 fixation, ammonification, nitrification, organic matter de- 

 composition; (2) determine effect of temperature on above-listed 

 microbial transformations; and (3) observe stimulation or inhibition 

 of soil microbial population by above compounds. 

 Bact. 889 



Okla. The Effect of Steroids on Microbial Metabolism and the 



Degradation of These Compounds by Microorganisms . (1) Study effect 

 of diethylstilbestrol, hexestrol, progesterone, estradiol, and 

 dienestrol on microbial oxidations and metabolism. Isolate and 

 identify (2) organism(s) capable of degrading or using these com- 

 pounds as sole sources of organic C; (3) degradation products 

 and study effects of these compounds on microorganisms. 

 Bact. 976 



