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Filtering by: Alternative title ssim EC 1468-S Remove constraint Alternative title ssim: EC 1468-S Academic Affiliation Food Science and Technology Remove constraint Academic Affiliation: Food Science and Technology Degree Level Master's Remove constraint Degree Level: Master's

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  • Gas chromatographic identification of chlorinated insecticides based on their U.V. degradation

    Creator:
    Banks, K. A. and Bills, D. D.
    Abstract:
    Certain chlorinated insecticides can be identified by electron capture gas­-liquid chromatographic (EC-GLC) analysis of the prepared sample before and after treatment with ultraviolet irradiation, Upon U.V. treatment, characteristic degrada­tion products arise from the insecticides investigated. Comparison of the degradation pattern obtained by EC-GLC of unknown and authentic insecticides provides an...
    Resource Type:
    Capstone Project
    Full Text:
    insecticides can be identified by electron capture gas­ liquid chromatographic (EC-GLC) analysis of the

  • Identification of some esterases of the green bean (Phaseolus vulgaris L.)

    Creator:
    Putnam, Teryl Beebe
    Abstract:
    This investigation was conducted to differentiate the esterases in a water extract of freeze-dried green beans on the basis of inhibitor and substrate specificities. An attempt was made to classify these esterases according to the criteria used for animal esterases. Activity of the esterases was measured manometrically using the Gilson...
    Resource Type:
    Masters Thesis
    Full Text:
    ester hydrolase, EC 3. 1. 1,2). Various concentrations of organophosphorus compounds inhibited the

  • Identification of some soluble esterases of the carrot (Daucus carota I.)

    Creator:
    Carino, Lourminia Almeda
    Abstract:
    Substrate and inhibitor specificities have been used to classify esterases. The purpose of this work was to determine the substrate and inhibitor specificities of the esterases in an aquous extract of lyophilyzed carrots. Esterase activity was determined manometrically at 37°C. The optimum pH of the carrot esterases with several substrates...
    Resource Type:
    Masters Thesis
    Full Text:
    carboxylesterases (EC 3. 1, 1. 1). The sixth esterase was similar to arylester as e (EC 3.1,1.2). An enzyme

  • Inhibition of Escherichia coli trimethylamine-N-oxide reductase by food preservatives

    Creator:
    Kruk, Mark W.
    Abstract:
    Trimethylamine-N-oxide (TMA-0) reductase activity of resting cells of Escherichia coli was inhibited by tetrasodium ethylenediaminetetraacetate (Na₄EDTA), benzoic acid (BA), and methylparaben (MP). The 50% inhibitory concentrations of Na₄EDTA, BA, and MP were 20.2, 1.2, and 32.4 mM, respectively. BA at pH 6.5 or below most effectively inhibited the TMA-0 reductase....
    Resource Type:
    Masters Thesis
    Full Text:
    reduced microbial growth. 0.5 - 0) 4-> o S- Q. Ol E 0.4 - 3 ■!-> O eC

  • Effect of Genotype and Environment on Organic Winter and Spring Naked Barley Composition and Food Functionality

    Creator:
    Bunting, Jordyn S.
    Abstract:
    Naked barley is a rich source of fiber and phytonutrients but is not widely consumed by humans. The author contends that increasing population-wide consumption of wholegrain naked-barley would accrue a net positive public health benefit by helping to increase total fiber and phytonutrient consumption. Many of the leading causes of...
    Resource Type:
    Masters Thesis
    Full Text:
    ABSTRACT OF THE THESIS OF Jordyn S. Bunting for the degree of Master of Science in Food Science

  • The significance of glutathione conjugation for aflatoxin B₁ metabolism in rainbow trout and coho salmon

    Creator:
    Valsta, Liisa M.
    Abstract:
    In rodent models as well as in fish models there are significant species differences in the susceptibility toward aflatoxin B₁ (AFB₁) carcinogenesis. Mouse is less susceptible toward AFB₁ carcinogenesis than rat. Researchers have come to the conclusion that the lower susceptibility of mice is not a result of less effective...
    Resource Type:
    Masters Thesis
    Full Text:
    -2-(S-glutathionyl)-3-hydroxyaflatox1n Bj) (Degen and Neumann 1978,1981). Epoxide hydrase is

  • Drug resistance, source, and environmental factors that influence fecal coliform levels of Tillamook Bay

    Creator:
    Kelch, William James
    Abstract:
    In order to determine the source of bacteria in Tillamook Bay, Oregon, water samples were collected monthly for six months during the rainy season from October 1975 through March 1976 from the bay and its tributaries, the Kilchis, Trask, Tillamook, and Wilson Rivers. Fecal coliform levels of these samples were...
    Resource Type:
    Masters Thesis
    Full Text:
    indicator after 48 hour incubation at 35 C. They include: Streptococcus faecal is; S. faecalis var

  • Wheat flour arabinoxylans in soft wheat end-use quality

    Creator:
    Asawaprecha, Sunida
    Abstract:
    Little is known about the effects of arabinoxylans (AX) on noodle quality. The aim of this study was to observe interrelationships between wheat flour AX, SRC tests, and noodle quality attributes, and to investigate the use of SRCs to predict cookie diameter. Cookie diameter is the most common index of...
    Resource Type:
    Masters Thesis
    Full Text:
    Arabinoxylans in Soft Wheat End-Use Quality Abstract approved: Andrew S. Ross Little is known about the

  • Influence of polyphosphates on the emulsifying capacity of milk and meat proteins

    Creator:
    Cummins, Armando
    Abstract:
    The influence of polyphosphates upon the emulsification of enzymatic hydrolyzates of casein and lactalbumin and upon salt-soluble meat proteins was determined by a model system in which oil-in-water emulsions were formed. Sodium acid pyrophosphate, sodium tripolyphosphate and sodium hexametaphosphate were mixed together in a weight ratio of 4:2:4, respectively, to...
    Resource Type:
    Masters Thesis
    Full Text:
    concentrations. Data were also graphically expressed as emulsifying capacity (EC) and oil phase volume

  • Mercury levels in albacore tuna (Thunnus alalunga) and the effects of canning

    Creator:
    Rasmussen, Rosalee S.
    Abstract:
    Mercury is a toxic heavy metal released into the environment from both natural and anthropogenic sources. The organic form of mercury is a potent neurotoxin that is especially dangerous to developing nervous systems. Results of recent studies have caused the Food and Drug Administration (FDA) and the Environmental Protection Agency...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Rosalee S. Rasmussen for the