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Formation of heterocyclic n-nitrosamines from the reaction of nitrite and selected primary diamines and amino acids

Creator:

Warthesen, Joseph John

Abstract:

The reaction of several primary amines with nitrite was investigated with regard to the formation of N-nitrosamines. When reacted in a low moisture system at 160°C with a 1:2 molar ratio of amine to sodium nitrite, various primary amine hydrochloride salts were found to give rise to heterocyclic nitrosamines. The...

Resource Type:

Dissertation
Accumulation of dietary polychlorinated biphenyl by rainbow trout (Salmo gairdneri)

Creator:

Lieb, Andrew James

Abstract:

This study was conducted to investigate the accumulation of dietary polychlorinated biphenyls (PCB's) by a Mt. Shasta strain of rainbow trout (Salmo gairdneri). A commercial mixture of PCB's (Aroclor 1254) was added to the diet at a level of 15 ppm on a dry weight basis. Accumulation of PCB's was...

Resource Type:

Masters Thesis
Identification of polychlorinated biphenyls by gas-liquid chromatography and ultraviolet degradation

Creator:

Herring, Jeffry Lynn

Resource Type:

Masters Thesis
Effect of sucrose on the production of flavor compounds by yogurt culture bacteria

Creator:

Yang, Chang-su

Abstract:

Organoleptically, flavored yogurts appear to contain lower levels of acetaldehyde than plain yogurt. This study was undertaken to seek the reasons for this phenomenon by focusing on the analyses of acetaldehyde production by yogurt culture bacteria in yogurt base containing added sucrose and by performing other analyses such as the...

Resource Type:

Masters Thesis
Identification of some chlorinated pesticides by ultraviolet degradation

Creator:

Kaufman, Willis Mast

Resource Type:

Dissertation