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Filtering by: Creator Todd, Brian D. Remove constraint Creator: Todd, Brian D. Academic Affiliation Food Science and Technology Remove constraint Academic Affiliation: Food Science and Technology Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • Investigating the effects of temperature on secondary metabolism in Vitis vinifera L. cv. merlot berries

    Creator:
    Cohen, Seth D.
    Abstract:
    Grapes (e.g. Vitis vinifera L.) are one of the more important fruit crops from an economic standpoint with world market values over 550 million US dollars in 2007 and 2008, second to apples (United States Department of Agriculture). While a satisfactory level of ripeness is of primary concern, the quality...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Seth D. Cohen for the degree of Doctor of Philosophy in Food

  • Spatiotemporal Distributions of Bacteria in the Cheddar Production Environment

    Creator:
    Johnson, Jared D.
    Abstract:
    Given the many significant roles that bacteria play in modern food manufacturing, it is crucial that we have a fundamental understanding of how bacterial communities assemble and behave in the food manufacturing environment. The focus of this dissertation was to investigate both the spatial and temporal distributions of microbial communities...
    Resource Type:
    Dissertation
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    production environment AN ABSTRACT OF THE DISSERTATION OF Jared D. Johnson for the degree of

  • Cherry phytochemicals

    Creator:
    Chaovanalikit, Arusa, 1974-
    Abstract:
    The distribution of anthocyanin pigments and polyphenolics of sweet (Prunus avium) and sour cherries (Prunus cerasus) were determined by Ultraviolet- Visible (UV-Visible) spectrophotometry and High Performance Liquid Chromatography with photodiode array detector (HPLC-DAD). Their antioxidant properties were determined by Oxygen Radical Absorbance Capacity (ORAC) and Ferric Reducing Antioxidant Power (FRAP)....
    Resource Type:
    Dissertation
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    committee members; Dr. Vincent T. Remcho, Dr. Lisbeth Meunier-Goddik, Dr. Charles D. Boyer, and Dr

  • Characterization of Vibrio parahaemolyticus isolated from Oregon and Washington coastal water and development of improved methods for Vibrio parahaemolyticus detection

    Creator:
    Duan, Jingyun
    Abstract:
    Distribution of Vibrio parahaemolyticus in Oregon and Washington oystergrowing areas was studied between November 2002 and October 2003. V. parahaemolyticus was detected in 14.3% of oyster, 23.0% of seawater, and 44.4% of sediment samples with very low levels (≤7.4 MPN/g) of pathogenic strains being detected in oysters. Occurrence of V....
    Resource Type:
    Dissertation
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    . Mark A. Daeschel, Dr. Michael H. Penner, and Dr. Charles D. Boyer, for their advice and kindly help

  • Structure and conformation of red radish (Raphanus sativus L.) anthocyanins and their effect on color and pigment stability

    Creator:
    Giusti Hundskopf, Maria Monica
    Abstract:
    Red radish (Raphanus sativus L.) anthocyanins were extracted from liquid nitrogen powdered epidermal tissue using acetone and chloroform and isolated using C-18 resin. Chemical structure and conformation of major pigments were elucidated by 1-D and 2-D NMR, Mass Spectroscopy, HPLC, and spectral analyses. Two novel di-acylated anthocyanins, pelargonidin 3-0-[2-0-(β-D-glucopyranosyl)-(6-0- trans-p-coumaroyl-...
    Resource Type:
    Dissertation
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    pigments were elucidated by 1-D and 2-D NMR, Mass Spectroscopy, HPLC, and spectral analyses. Two novel

  • Thermal and enzymatic degradation of raspberry anthocyanins

    Creator:
    Daravingas, George Vasilios
    Abstract:
    The elucidation of the structure of the red pigments of the black raspberries. Monger variety, was achieved. The components of the pigment of the berries were (a) cyanidin-3-glucoside, (b) cyanidin-3, 5-diglucoside, (c) cyanidin-3-diglucoside and (d) cyanidin-3-rhamnoglucosido- 5-glucoside. The elucidation was carried out after isolation, purification, concentration and chromatographic separation of...
    Resource Type:
    Dissertation
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    the Ph. D. in Food Science (Name) (Degree) (Maior) Date thesis is presented xk

  • Dietary protein and aflatoxin B₁ metabolism in rainbow trout (Salmo gairdneri)

    Creator:
    Stott, William T.
    Abstract:
    Dietary protein intake has been observed to influence the induction of cancer in animals exposed to carcinogens, presumably by affecting the activities of enzyme systems which metabolize them. One such carcinogen is aflatoxin B₁ (AFB₁) a mold metabolite and frequent contaminant of foodstuffs. Variations in the levels of dietary proteins...
    Resource Type:
    Dissertation
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    (Miller et al., L961). Ahokas et al. (1975a; 1977b;c;d) and Pedersen et al. (1974) have also char

  • A study of antimutagenicity in yogurt

    Creator:
    Sudarshan, Nadathur R.
    Abstract:
    The purpose of this study was to identify antimutagens in yogurt active against the experimental colon carcinogen, N-methyl-N'-nitro-N-nitrosoguanidine (MNNG). Our initial experiments showed that acetone extracts of yogurt, or milk fermented by various lactic acid bacteria were antimutagenic against MNNG and 3,2'-dimethyl-4-aminobiphenyl (DMAB) in the Ames test (Salmonella typhimurium TA...
    Resource Type:
    Dissertation
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    deleterious fecal enzymes, d) elevation of immune response, and e) supporting epidemiological studies. A

  • Survival Assessment, Inactivation Kinetics Models, and Farm-to-Table Quantitative Risk Analysis of Food Pathogens

    Creator:
    Deng, Kai
    Abstract:
    About 48 million cases of Foodborne illnesses (FBIs) are estimated to occur every year in the US. These are diseases caused by contamination of foods with bacteria, viruses, protozoa, parasites and toxic chemicals. Clostridium difficile infections (CDIs) are an important health-care and community associated problem. Since C. difficile spores have...
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    Dissertation
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    the Bosun Health Food R&D Center of Guangdong located in Guangzhou, my hometown in China. Dr. Torres

  • Application of membrane filtration to recover solids from protein solutions

    Creator:
    Huang, Lihan
    Resource Type:
    Dissertation
    Full Text:
    calculated boundary layer thicknes and diffusion coefficient. 179 Mesh generation for D = 7.0 x 10h1 m2/s