The primary goal of this research was to identify the impacts that individual agricultural land uses have on fish communities in small streams located in the Willamette Valley of western Oregon. The diverse nature of the land use features of the valley provided a challenging but useful system for the...
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)....
The purpose of this study was to explore the extent of use, preparedness and
importance of the communication skills currently listed in the foundation knowledge and
skills for dietetics education and to explore how these skills are used in practice. A total
of 403 self-administered questionnaires, listing eleven elements of...
Studies have shown that parental feeding practice has an impact on the child's
dietary intake, food preference and weight status. Our study focused on teaching parents
the division of responsibility in parent-child feeding relationship as well as benefits of
eating meals together, since feeding practice takes place during the mealtime....
Alpha acids are found in the lupulin glands of hops cones. These acids have no bitterness of their own, but can be isomerized and subsequently hydrogenated to form bitter iso-α-acids and tetrahydroiso-α-acids respectively. Current literature values for the detection thresholds of iso-α-acid and tetrahydroiso-α-acid in lager beer have been reported...
Quantitative procedures were developed to determine the effect of variability in the model parameters required for the estimation of microbial shelflife and thermal processing time. Monte Carlo simulations combined with these predictive models were implemented in Microsoft Excel™. In the first study,
predictive models were used for shelf-life predictions based...
A lexicon to define the sensory properties of melted Cheddar cheese was created
using a trained descriptive panel. The lexicon characterized appearance (surface rupture,
meltedness, oiliness, and edge browning) and texture (stringiness, stretchiness,
springiness, firmness, toothpull, smoothness, cohesiveness, denseness, and chewiness).
Three brands of commercially available shredded Cheddar cheese were...
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...
Mass transfer processes in food systems, such as solute infusion, are poorly understood because of their complex nature. Food systems contain porous matrices and a variety of continuous phases within cellular tissues. Mass transfer processes are generally not pure diffusion: often convection, binding and obstructing diffusion will occur. Monte Carlo...
As rates of obesity continue to rise in the United States, interest in restaurant menu labeling has become a growing phenomenon. Many proposed initiatives to require posted nutrition information at the point of sale or decision point for choosing restaurant fare are gaining attention. Research to explore how nutrition labeling...