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Filtering by: Creator Noss, Reed F. Remove constraint Creator: Noss, Reed F. Academic Affiliation Food Science and Technology Remove constraint Academic Affiliation: Food Science and Technology

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  • Immunological and physiochemical characterization of fish myosins

    Creator:
    Reed, Zachary H.
    Abstract:
    Increased sales of surimi seafood, with the majority as crabstick in the United States indicates that surimi based products are becoming more popular. With growing popularity, there is increased competition for market share. Under these circumstances, some companies may be willing to sacrifice product quality in order to facilitate manufacture...
    Resource Type:
    Dissertation
    Full Text:
    OF THE DISSERTATION OF Zachary H. Reed for the degree of Doctor of Philosophy in Food Science

  • The effect of prerigor electrical stimulation pH decline, protein solubility and water holding capacity in beef muscles

    Creator:
    Elkhalifa, Elamin Abdalla
    Abstract:
    This study was designed to investigate the rate of pH decline, changes in protein solubility and in the water-holding capacity (WHC) of beef muscles subjected to pre-rigor electrical stimulation. Samples for the experiment were obtained from animals slaughtered at the Meat Science Laboratory, Oregon State University. Nine good quality steers...
    Resource Type:
    Masters Thesis
    Full Text:
    CAPACITY IN BEEF MUSCLES Abstract approved: — "T? Dr. A. F.^Angle Dr. A. F.^Anglemier This study was

  • Microbiological control of food spoilage and pathogenic microorganisms in refrigerated foods

    Creator:
    Al-Zoreky, Nageb
    Abstract:
    Microgard, a commercially-available pasteurized fermented milk, was found inhibitory to gram negative bacteria such as Pseudomonas putida, some well-known foodborne pathogens (e.g. Salmonella, Yersinia and Aeromonas) and some fungi as revealed by an agar incorporation assay method. Gram positive bacteria, however, were not inhibited. Rather, some bacteria in this group...
    Resource Type:
    Masters Thesis

  • Aflatoxin B₁ metabolism by rainbow trout (Salmo gairdneri)

    Creator:
    Schoenhard, Grant Louis
    Abstract:
    Aflatoxins B₁, Q₁ and aflatoxicol, R [subscript o] F, but not B₂ were activated in the presence of NADPH by the 105,000 x g pellet from rainbow trout (Salmo gairdneri), Mt. Shasta strain, liver to products lethal to Bacillus subtilis GSY 1057 (metB4, hisAl, uvr-1). Electron microscopy confirmed the microsomal...
    Resource Type:
    Dissertation
    Full Text:
    . Aflatoxins B,, Q, and aflatoxicol, R F, but not B- were acti-< 1 l o L vated in the presence

  • Effects of temperature and holding time during pre-blanch on pH, pectic substances and quality characteristics of canned green beans

    Creator:
    Boni, Magloire C.
    Abstract:
    Physical, chemical and sensory attributes were examined on canned green beans (Oregon 1604) of sieve sizes 3 & 4 and 5 & 6 after one and three months of storage at room temperature (RT). The green beans subjected to different pre-blanch conditions in water (T1t1: 160°F - 30 min.; T1t2:...
    Resource Type:
    Masters Thesis
    Full Text:
    different pre-blanch conditions in water (Tltl: 160 F - 30 min.; T1t2: l60oF - 90 min.; T2t1: 200oF - 30

  • Radiation pasteurization of raw and chlortetracycline-treated shrimp

    Creator:
    Awad, Ahmed Ali
    Abstract:
    Pasteurization radiation offers a new means of extending the refrigerated storage life of foods. This procedure avoids many of the undesirable changes which result when sterilization radiation is used and still eliminates most of the spoilage organisms. Shrimp was treated with 5 ppm chlortetracycline and subjected to pasteurization levels of...
    Resource Type:
    Masters Thesis
    Full Text:
    pasteurization levels of gamma radiation and stored at 38 F. The levels of irradiation used were 0. 5 and

  • Preservation of dover sole by low-dose radiation and antimicrobial agents

    Creator:
    Shiflett, Maureen Adele
    Abstract:
    The storage life at 43°F of ground dover sole fillets (Microstomas pacificus) was determined microbiologically after treatment with ionizing radiation and antimicrobial agents. Sodium benzoate, potassium sorbate and the sodium salts of the methyl and propyl esters of parahydroxybenzoic acid (MPB and PPB) all approximately doubled the refrigerated storage life...
    Resource Type:
    Masters Thesis
    Full Text:
    ANTIMICROBIAL AG^JNTTS Abstract approved ^_ /.'.•' (Major professor) The storage life at 43 F of

  • Determination of the quality of radiation-pasteurized halibut (Hippoglossus stenolepis) during storage

    Creator:
    Serrano, Lolita Bate
    Abstract:
    The quality of radiation-pasteurized halibut stored at 34°F was evaluated subjectively and objectively over a period of 18 weeks. Results of flavor evaluation and chemical analyses showed that the storage life of halibut irradiated at 0.50, 0.75 and 1.00 megarad was extended more than threefold. Although irradiated samples were consistently...
    Resource Type:
    Masters Thesis
    Full Text:
    halibut stored at 34 F was evaluated subjectively and objectively over a period of 18 weeks

  • Suitability of pollinizing varieties of pears for dehydration

    Creator:
    Saeed, Mohammed
    Abstract:
    Commercial utilization of pollinizing varieties of pears is important both for pear growers and processors in Oregon. A study was made to determine the suitability of Comice, Packam's Triumph and Anjou, the three pollinizing varieties of pears, for dehydration, as compared to the Bartlett variety which is commercially used for...
    Resource Type:
    Masters Thesis
    Full Text:
    using conventional and dry-blanch-dry methods and were subsequently stored at 70° F. The storage

  • Study of sulfite mutants of Saccharomyces cerevisiae

    Creator:
    Wightman, JoLynne Dee
    Abstract:
    Sulfite mutants representing five complementation groups, previously derived from an ethyl methanesulfonate-treated haploid strain of Saccharomyces cerevisiae were studied. Although the wildtype S. cerevisiae strain used (isogenic to X2180-1 A) had a basal tolerance for sulfite (7 μM free H₂SO₃), the sensitive and resistant mutants were found to tolerate less...
    Resource Type:
    Masters Thesis
    Full Text:
    when SO2 levels exceeded 14,000 f!g/m3 (5.38 ppm). Variance in results on exact levels causing