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Filtering by: Creator Tello-Ruiz, Marcela K. Remove constraint Creator: Tello-Ruiz, Marcela K. Academic Affiliation Food Science and Technology Remove constraint Academic Affiliation: Food Science and Technology

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  • Improved moisture permeability determinations for packaging films and food coatings

    Creator:
    Tello-Lopez, Edgar Eduardo
    Abstract:
    Equipment and procedures for the rapid measurement of the water vapor permeability of polymer films and food coatings has been evaluated. The method uses an electronic sensor to measure the concentration increase in water vapor diffusing through a film into a chamber of known volume. Air of known humidity is...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Edgar Eduardo Tello Lopez for the

  • Hydrolytic methods for the quantification of fructose-equivalents in herbaceous biomass

    Creator:
    Nguyen, Stefanie K.
    Abstract:
    A low, but significant, fraction of the carbohydrate portion of herbaceous biomass may be composed of fructose/fructosyl-containing components (“fructose equivalents”); such carbohydrates include sucrose, fructo-oligosaccharides, and fructans. Standard methods used for the quantification of structural-carbohydrate-derived neutral monosaccharide-equivalents in biomass are not particularly well suited for the quantification of fructose equivalents...
    Resource Type:
    Masters Thesis
    Full Text:
    ABSTRACT ON THE THESIS OF Stefanie K. Nguyen for the degree of Master of Science in Food Science

  • Refrigerated seawater depuration for reducing Vibrio parahaemolyticus contamination in raw Pacific oysters (Crassostrea gigas)

    Creator:
    Yang, Qianru
    Abstract:
    Vibrio parahaemolyticus is a seafood-borne pathogen that can cause gastroenteritis in humans. This study investigated the effectiveness of refrigerated seawater (5°C) depuration on reducing V. parahaemolyticus in raw Pacific oysters (Crassostrea gigas). Raw Pacific oysters were inoculated with a mixed culture of five clinical strains of V. parahaemolyticus and depurated...
    Resource Type:
    Masters Thesis

  • Cooling characterization and practical utilization of sub-micron slurry ice for the chilling of fresh seafood

    Creator:
    Keys, Dustin R.
    Abstract:
    Consumption of seafood products continues to grow each year, but post-harvest losses and inedible seafood waste remain as high as 25%. Ice-based systems are the most common form of preservation to increase shelf life, preserve product quality, and enhance product safety. Slurry ice is a type of chilling media, consisting...
    Resource Type:
    Masters Thesis
    Full Text:
    than expected because K- values indicated spoilage at d 0, while the d 0 fillets were deemed

  • Cleaning and Sanitizing Surfaces on Produce Farms: Optimizing What, How, and When

    Creator:
    Ohman, Erik
    Abstract:
    Production of fresh produce takes place outdoors, and therefore, is exposed to many routes of contamination (e.g., soil, contaminated water, manure, etc.) by human pathogens. Although precautions are taken to reduce this risk, pathogens can be regularly introduced to produce handling facilities. To manage the risk of cross-contamination from potentially...
    Resource Type:
    Masters Thesis

  • 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
    Full Text:
    Rowland & Grasso, 1975 K) 22 activity was detected in the Ames test, in the urine of subjects

  • Effects of Pediococcus spp. on Oregon Pinot noir

    Creator:
    Strickland, Matthew T.
    Abstract:
    This research investigated the effects of Pediococcus spp. on Oregon Pinot noir wines. Pediococcus (P. parvulus (7), P. damnosus (1), P. inopinatus (1)) isolated from Oregon and Washington state wines demonstrated differences in their susceptibility to SO₂ with some isolates growing well in model media at 0.4 mg/L molecular SO₂....
    Resource Type:
    Masters Thesis
    Full Text:
    acid bacteria in high concentrations (García-Ruiz et al. 2008; García-Ruiz et al. 2009). Ferulic

  • 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
    Full Text:
    Science and Nutrition 0 (0): 1–15. https://doi.org/10.1080/10408398.2018.1512471. Agarwal, S., K

  • Enrichment Isolation of Brettanomyces Yeasts to Probe the Relationship Between Vineyard and Winery Populations

    Creator:
    Pigao, Kevin E.
    Abstract:
    The budding yeast Brettanomyces bruxellensis has the potential to spoil fermented beverages and cause financial losses, but also contribute positively to certain products such as Lambic beer. It is most notorious for causing “Brett” spoilage of wine, which is characterized by undesirable aromas such as “bandaid” and “barnyard”, therefore most...
    Resource Type:
    Masters Thesis
    Full Text:
    APPENDIX FIGURES Figure Page A1 K. aerobia spotted onto B. bruxellensis……………………………104

  • Assessing the impact of temperature on grape phenolic metabolism

    Creator:
    Cohen, Seth D.
    Abstract:
    Many climatic factors influence grape berry composition including nutrient status, water availability, biotic stress, sun exposure and temperature. Previous research examined the effects of many factors listed above and much progress has been made. It is often difficult, however, to separate effects that typically confound each other, such as sun...
    Resource Type:
    Masters Thesis