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Filtering by: Advisor Scanlan, Richard A., 1937- Remove constraint Advisor: Scanlan, Richard A., 1937- Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

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  • Food as a source of nitrosatable amines

    Creator:
    McIntyre, Timothy
    Abstract:
    Beer, nonfat dry milk, fried bacon and microwave baked fish were treated under simulated gastric and extreme nitrosation conditions to estimate their capacity for generation of endogenously formed N-nitrosamines. The level of nitrosamines in beer increased from 0.1 ppb N-nitrosodimethylamine to 0.4 ppb N-nitrosodimethylamine (p < 0.05) under simulated gastric...
    Resource Type:
    Masters Thesis
    Full Text:
    to thank Dr. Richard A. Scanlan, his major advisor, for providing this opportunity and for the

  • Formation of Bis(hydroxyalkyl)N-nitrosamines as products of the nitrosation of spermidine

    Creator:
    Hotchkiss, Joseph H.
    Abstract:
    The purpose of this study was to characterize the nonvolatile, water soluble, bis(hydroxyalkyl)N-nitrosamines produced from the reaction of spermidine and nitrite. The biologically occurring polyamine spermidine was reacted with nitrite in the presence of acid. The reaction products were isolated and converted to trimethylsilyl (TMS) derivatives. The derivatized products were...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: ^^ ^ l ' l /Ml. A. Scanlan The purpose of this study was to characterize

  • Determination of dimethylamine in barley malt

    Creator:
    Yoo, Lee-joung
    Abstract:
    Dimethylamine (DMA), in addition to the alkaloids hordenine and gramine, has been suggested as a potential precursor of nitrosodimethylamine (NDMA) in malt. Analytical procedures were adopted and applied to extract and quantify DMA from malt, green malt, malt roots and raw barley. Ground malt was extracted at room temperature with...
    Resource Type:
    Masters Thesis
    Full Text:
    of Dimethyl ami r\g in Barley Malt Abstract approved: ^ ^ R. A. Scanlan Dimethylamine

  • Carcinogenicity and acute toxicity of dimethylnitrosamine in rainbow trout (Salmo gairdneri)

    Creator:
    Grieco, Mary Porter
    Abstract:
    A dose related carcinogenic response was established for dimethylnitrosamine administered in the diet of rainbow trout (Salmo gairdneri). An equation was derived for the relationship between dose and hepatocellular carcinoma incidence. From a published dose response study using Porton rats as a test animal, a second equation was derived for...
    Resource Type:
    Masters Thesis
    Full Text:
    : f , Dr. Richard A. Scanlan A dose related carcinogenic response was established for

  • A comparison of porous polymers used in collecting organic volatiles in foods

    Creator:
    Boyko, Alayne Linda
    Abstract:
    Porapak Q, Chromosorb 102, and Tenax GC, three porous polymers commonly used as adsorbents in headspace analyses were investigated. The retention times of various low-boiling compounds relative to water were measured on the collection columns to determine which compounds would be lost during the water removal step employed after sampling...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: -L - Dr. Richard A. Scanlan Porapak Q, Chromosorb 102, and Tenax GC, three porous

  • The autoxidation of 2, 4-decadienal

    Creator:
    Matthews, Roy Frank
    Abstract:
    2, 4-Decadienal was autoxidized by subjecting a purified sample to an atmosphere of pure oxygen for 14 hours. A qualitative analysis of the autoxidative degradation products was made utilizing tandem gas chromatography and mass spectrometry. Additional information was obtained from the determination of the melting point of the DNP-hydrazone derivative...
    Resource Type:
    Masters Thesis
    Full Text:
    . Richard A. Scanlan 2, 4-Decadienal was autoxidized by subjecting a purified sample to an atmosphere

  • Formation of N-nitrosopyrrolidine from various pyrrolidine ring-containing compounds at elevated temperatures

    Creator:
    Huxel, Edward Thomas
    Resource Type:
    Masters Thesis
    Full Text:
    ELEVATED TEMPERATURES _ Abstract approved: - Richard A. Scanlan The formation of N

  • Measurement of dimethylamine and trimethylamine in Dungeness crab, Cancer magister

    Creator:
    Gulan, Michael Peter
    Abstract:
    A rapid gas liquid chromatographic method was adapted to processed Dungeness crab for the determination of basic and neutral volatiles. Methylamine, dimethylamine, and trimethylamine were measured in processed Dungeness crab for the first time. Generally, the range for trimethylamine was 42 ppm for frozen crab to 700 ppm for iced...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Richard A. Scanlan A rapid gas liquid chromatographic method was adapted to pro