Influences Of Contexts On Consumers' Visual Attention Towards Food Images: Eye-Tracking Studies,
2014
University of Arkansas, Fayetteville
Influences Of Contexts On Consumers' Visual Attention Towards Food Images: Eye-Tracking Studies, Baoyue Zhang
Graduate Theses and Dissertations
Food perception is influenced not only by sensory properties of the food itself, but also by individuals- or environment-related contexts. Visual cue appears to be the most dominant factor in modulating food perception. This research aimed to determine whether individuals' visual attention towards food images can vary as a function of contextual variables such as hunger/fullness (Chapter 3), chronic stress (Chapter 4), and culture (Chapter 5). In Chapter 3 and Chapter 4, participants were asked to freely view visual slides, including four different images per slide, shown on the monitor. Using eye-tracking techniques, participants' visual attention towards food images (e.g., …
Effects Of Grain Sorghum Muffin On Blood Glucose And Insulin Responses In Prediabetic Men,
2014
University of Arkansas, Fayetteville
Effects Of Grain Sorghum Muffin On Blood Glucose And Insulin Responses In Prediabetic Men, Xuan Gu
Graduate Theses and Dissertations
Prediabetes is a sub-health condition in the development to type 2 diabetes, which has been long overlooked. Grain sorghum contains functional starch fractions, which have been widely reported for their potential on blood glucose control and diabetes prevention. A human study with prediabetic men was conducted to investigate the effects of sorghum starch on postprandial blood glucose and insulin levels. Grain sorghum and wheat (control) muffins containing 50 g total starch were consumed by 15 prediabetic male subjects on two mornings with a 1-week washout period. Plasma samples were collected on -15 (baseline), 0, 15, 30, 45, 60, 75, 90, …
The Elimination Of Listeria Monocytogenes Biofilms From Stainless Steel Deli Meat Slicer Components By The Use Of Hurdle Technologies,
2014
University of Arkansas, Fayetteville
The Elimination Of Listeria Monocytogenes Biofilms From Stainless Steel Deli Meat Slicer Components By The Use Of Hurdle Technologies, Alexandria Wynne Mertz
Graduate Theses and Dissertations
Listeria monocytogenes growth is of the greatest concern amongst ready-to-eat foods. The United States Department of Agriculture's Food Safety and Inspection Services determined that deli luncheon meats pose the greatest risk of contamination from L. monocytogenes Industrial meat slicers have many removable parts that are connected with sealers and gaskets, which can become worn over time. These spaces cannot be cleaned adequately, therefore are susceptible to bacterial growth. Planktonic cells form biofilms in order to protect the cell from adverse conditions, like during routine cleaning and sanitation. Once a biofilm is formed, the bacteria are much more difficult to eradicate …
Changes In Monomeric And Polymeric Pigments During Chokeberry Juice Processing,
2014
University of Arkansas, Fayetteville
Changes In Monomeric And Polymeric Pigments During Chokeberry Juice Processing, Kail David Wilkes
Graduate Theses and Dissertations
Chokeberry consumption has been increasing due to research exposing great potential of health-promoting compounds. However, chokeberries are highly astringent and are typically consumed in processed forms in which product heating is applied. Processing chokeberries has been reported to degrade bioactive compounds, thus limiting the potential for consumers to obtain their health-promoting benefits. The purpose of this research was to examine the effects of chokeberry juice processing and storage on anthocyanin, flavonol, proanthocyanidin, hydroxycinamic acid, and polymeric pigment content, as well as percent polymeric color. In addition, new analytical methodologies were explored to better understand possible outcomes of polymeric pigments due …
Oxidative Stability Of Conjugated Linoleic Acid Rich Soy Oil Obtained By Heterogeneous Ruthenium Catalysis,
2014
University of Arkansas, Fayetteville
Oxidative Stability Of Conjugated Linoleic Acid Rich Soy Oil Obtained By Heterogeneous Ruthenium Catalysis, Saurabh Ravindra Lele
Graduate Theses and Dissertations
Conjugated linoleic acid (CLA) has multiple health benefits but it is difficult to obtain sufficient CLA in a healthy diet to obtain the clinical effects. A CLA rich-soy oil (CLARSO) with up to 20% CLA has been produced by heterogenous catalysis but no studies of its oxidative stability have been reported. CLARSO and soy oil primary and secondary oxidation products were measured at 50oC in the dark. The CLARSO was less stable than soy oil but adsorption bleaching improved its oxidative stability. However, induction times were dependent on the analytical method used. Fatty acid oxidation kinetics was determined by measuring …
Dietary Behaviors And Nutrition Intervention Preferences Of Breast Cancer Survivors,
2014
Clemson University
Dietary Behaviors And Nutrition Intervention Preferences Of Breast Cancer Survivors, Sherry A. Stokes
All Theses
Breast cancer is the most commonly diagnosed cancer among women and there are expected to be 1,665,540 new cases diagnosed in 2014. Advancements in early detection, have greatly improved treatment outcomes for the majority of these patients and the 5-year survival rate is 89.2%. The newly emerging field of survivorship care is an attempt to meet the unique needs of this expanding population. Research has demonstrated that an unhealthy body weight is an important modifiable risk factor for the recurrence of breast cancer. This study used an electronic version of the Block 2005 to collect dietary information on 30 breast …
Determining The Fate Of Non-O157 Shiga Toxin-Producing Escherichia Coli In Dairy Compost During Storage Using The Optimized Detection Method,
2014
Clemson University
Determining The Fate Of Non-O157 Shiga Toxin-Producing Escherichia Coli In Dairy Compost During Storage Using The Optimized Detection Method, Hongye Wang
All Theses
Shiga toxin-producing Escherichia coli (STEC), a member of Enterobacteriaceae family, has been recognized as emerging pathogens. Dairy compost is commonly applied to farmland as a soil amendment. Despite the agricultural benefit of manure-based soil amendment, the inadequately treated compost can contribute to fresh produce contamination on the farm. Moreover, the epidemiological results showed that the non-O157 STEC cases have surpassed those of E. coli O157. Therefore, it is critical to evaluate the behavior of non-O157 STEC strains in the dairy manure-based compost. The objectives of this study were to: 1) optimize a culturing method for detecting non-O157 STEC from dairy …
Combining Modified Atmosphere Packaging And Nisin To Extend The Shelf Life Of Atlantic Salmon (Salmo Salar),
2014
Clemson University
Combining Modified Atmosphere Packaging And Nisin To Extend The Shelf Life Of Atlantic Salmon (Salmo Salar), Dong Han
All Theses
Atlantic salmon is often used in laboratory experiments to represent marine fishes. Many researchers try to optimize the levels and dosage of preservatives to maintain the freshness and extend the shelf-life of Atlantic salmon. Little information has been provided about the effectiveness of combined method between MAP and nisin, especially on the preservation of Atlantic salmon. Strong evidences suggest that MAP associated with nisin may have a potential to improve Atlantic salmon storage quality. Preservation effectiveness of combining modified atmosphere package (MAP) and nisin on fresh Atlantic salmon was determined using various methods. Six groups of farmed Atlantic salmon were …
Prevalence Of Human Noroviruses In Commercial Retail Food Establishment Without A Recently Reported Outbreak Of Gastroenteritis,
2014
Clemson University
Prevalence Of Human Noroviruses In Commercial Retail Food Establishment Without A Recently Reported Outbreak Of Gastroenteritis, Chaoyi Tang
All Theses
Human noroviruses (NoV) are a leading cause of acute gastroenteritis, causing nearly 58% of foodborne disease in the USA. The aim of our study was to determine the prevalence of NoV on select bathroom surfaces in food establishments in South Carolina (SC). All SC counties (N=46) were sorted by population density into high-, medium-, and low-density categories. Three counties were randomly selected from each population category. Lists of all foodservice establishments in each selected county (N=9) were obtained from the Department of Health and Environmental Control and a total of 120 foodservice establishments were randomly selected. Swabs were collected from …
Effects Of Transportation Hazards On Package Performance And Food Product Shelf Life,
2014
Clemson University
Effects Of Transportation Hazards On Package Performance And Food Product Shelf Life, Kyle Dunno
All Dissertations
This research studied the effect of transportation hazards on food product shelf life and package performance. Studies were conducted to determine the effect of package headspace volume, product viscosity and storage temperature on package integrity. Finally, accelerated shelf life testing (ASLT) was utilized to determine how simulated transportation hazards affected the shelf life of a specific food product. Institutional retort pouches containing either water or 5% starch solution were filled with varying amounts of headspace volume to determine if package headspace volume could aid in package performance during simulated engineering tests for packaged products. Fixed displacement vibration testing and compression …
Development And Application Of Scalable Two-Dimensional High Performance Liquid Chromatography For Aromatic Selective Separations Of Biologically Active Phytochemicals From Oplopanax Horridus,
2014
Clemson University
Development And Application Of Scalable Two-Dimensional High Performance Liquid Chromatography For Aromatic Selective Separations Of Biologically Active Phytochemicals From Oplopanax Horridus, Gregory Jones
All Dissertations
The high demand for more efficient purification processes with increased automation and throughput pushes the development of more advanced preparative, pilot, and process scale HPLC instrumentation that is capable of achieving higher purities in a shorter amount of time than are currently achieved using one dimensional separations. A preparative scale 2D HPLC system was designed and reduced to practice in order to demonstrate the capacity for scalability of on-line comprehensive 2D HPLC separations of basic compounds from a challenging natural product extract of Oplopanax horridus. The methodology and instrumentation design herein permits direct method transfer from analytical to preparative scale …
Protein Turnover In Broiler, Layers, And Broiler Breeders,
2014
University of Arkansas, Fayetteville
Protein Turnover In Broiler, Layers, And Broiler Breeders, Karen Vignale Lake
Graduate Theses and Dissertations
Protein turnover in skeletal tissue for broiler breeders has shown to increase at sexual maturity and then decline with increased egg production. Regarding broiler chickens the industry is facing two situations that need to be clarified: the appearance of white stripes in birds over 56 days of age and the positive effect in breast meat yield that supplementation of 25OH-D3 is causing. A series of studies were conducted to determine the effect of sexual maturity in protein turnover in broiler breeders and laying hens and to understand the effect of 25OHD3 in breast meat yield in broiler chickens and why …
Antibacterial Activity Of Commercially Available Plant Extracts On Selected Campylobacter Jejuni Strains,
2014
University of Arkansas, Fayetteville
Antibacterial Activity Of Commercially Available Plant Extracts On Selected Campylobacter Jejuni Strains, Divya Oppath Sivasankaran
Graduate Theses and Dissertations
Campylobacter jejuni is recognized as a leading cause of foodborne illness worldwide with approximately 850,000 cases per year in the United Sates. A total of 18 species of Campylobacter have been identified worldwide to date. Foodborne transmission of C. jejuni is mainly through the consumption of unpasteurized milk, contaminated poultry meat and water. C. jejuni can survive in very diverse environments under stressful conditions in human and animals which is different from the specific conditions and media required in laboratory experiments. There has been increased research in recent years to identify naturally occurring antibacterial agents to control and eliminate C. …
A Preventive Maintenance Framework In Dairy Production Operations,
2014
University of Texas-Pan American
A Preventive Maintenance Framework In Dairy Production Operations, Maria F. Vargas
Theses and Dissertations - UTB/UTPA
Dairy operations suffer frequent stops. Product shrinkage is a consequence of downtime, which includes losses of packaging material, scraped finish product and capacity. This work proposes a troubleshooting methodology to identify causes of downtime, estimation of waste cost, and minimization of operation disruptions by applying a combination of a cost function to assess waste, and performance measurements. The drinkable yogurt process is evaluated to find the principal areas for wasted bottles and yogurt. In order to make a decision about which of those sources to address, a General Cost Function is used to estimate waste cost which include measurements that …
Fearless Friday: Sean Pethybridge,
2014
Gettysburg College
Fearless Friday: Sean Pethybridge, Christina L. Bassler
SURGE
Talking with Sean Pethybridge ’15, one could easily assume his interest in agriculture and food justice developed at a very young age. Sean confesses that he had very limited knowledge prior to attending Gettysburg. “My grandpa had a garden and the most experience I had with that was picking green beans during the summer time when I was younger,” he jokes. [excerpt]
Freeze Dried Blueberry Powder Fortification Improves The Quality Of Gluten Free Snacks,
2014
CUNY Hunter College
Freeze Dried Blueberry Powder Fortification Improves The Quality Of Gluten Free Snacks, Sikha Bhaduri, Khursheed Navder
Publications and Research
Since Quinoa flour is an excellent source of natural antioxidant compounds and blueberries are rich in polyphenolic anthocyanins, this study was undertaken to improve and evaluate the quality of two blueberry powder fortified gluten free products, muffins and cookies. Control products were made with 100% Rice flour and Rice flour was replaced by 50% and 100% Quinoa flour to prepare muffin and cookies. 10% freeze dried Blueberry powder was used for fortification. Effect of flour replacements and Blueberry fortification on moisture content, water activity, antioxidant value, shelf life, sensory quality and textural properties were studied. Blueberry fortification improved the shelf …
Effect Of Plasticizer On Oxygen Permeability Of Cast Polylactic Acid (Pla) Films Determined Using Dynamic Accumulation Method,
2014
Bogor Agricultural University
Effect Of Plasticizer On Oxygen Permeability Of Cast Polylactic Acid (Pla) Films Determined Using Dynamic Accumulation Method, Kurniawan Yuniarto, Bruce A. Welt, Aris Purwanto, Hadi Karia Purwadaria, Ayman Abdellatief, Titi C. Sunarti, Setyo Purwanto
Journal of Applied Packaging Research
Polylactic acid (PLA) is becoming an increasingly important biopolymer for packaging applications. PLA brittleness limits its applicability. This study evaluated PLA properties with increasing amounts of added polyethylene glycol (PEG) plasticizer. Oxygen transmission rate (OTR) of cast films was determined using the newly available Dynamic Accumulation (DA) method. Arrhenius temperature sensitivity of OTR and polymer Permeability was also determined. Permeability of neat PLA is 4.848 ml mm (STP)/m2 s kPa; hence, 4.84 ml mm (STP)/m2 s kPa, 4.07 ml mm (STP)/m2 s kPa and 5.42 ml mm (STP)/m2 s kPa by adding PEG 1 %, 5% …
Development Of A Methodology To Measure The Effect Of Ergot Alkaloids On Forestomach Motility Using Real-Time Wireless Telemetry,
2014
University of Kentucky
Development Of A Methodology To Measure The Effect Of Ergot Alkaloids On Forestomach Motility Using Real-Time Wireless Telemetry, Amanda M. Egert, James L. Klotz, Kyle R. Mcleod, David L. Harmon
Animal and Food Sciences Faculty Publications
The objectives of these experiments were to characterize rumen motility patterns of cattle fed once daily using a real-time wireless telemetry system, determine when to measure rumen motility with this system, and determine the effect of ruminal dosing of ergot alkaloids on rumen motility. Ruminally cannulated Holstein steers (n = 8) were fed a basal diet of alfalfa cubes once daily. Rumen motility was measured by monitoring real-time pressure changes within the rumen using wireless telemetry and pressure transducers. Experiment 1 consisted of three 24-h rumen pressure collections beginning immediately after feeding. Data were recorded, stored, and analyzed using …
Dietary Carbohydrates Influence The Structure And Function Of The Intestinal Alpha-Glucosidases,
2014
Purdue University
Dietary Carbohydrates Influence The Structure And Function Of The Intestinal Alpha-Glucosidases, Mohammad Chegeni
Open Access Dissertations
As the primary products of starch digestion by pancreatic α-amylase, maltooligosaccharides (including maltose) are the main substrates for the α-glucosidases at the intestinal brush border. Here, maltose was shown to induce the formation of a higher molecular weight (HMW) sucrase-isomaltase (SI) species in Caco-2 cells that sorts more quickly to the enterocyte surface to act as a digestive enzyme. As this finding suggested a maltose sensing ability of small intestinal enterocytes, molecular mechanisms associated with the maturation and trafficking of HMW SI were further investigated. A pulse-chase experiment using [ 35S]-methionine revealed a higher rate of early trafficking and …
Growing South Dakota (Fall 2014),
2014
South Dakota State University
Growing South Dakota (Fall 2014), College Of Agriculture &. Biological Sciences
Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)
[Page] 2 Abundant Opportunities: Bright Ag & Bio Career Outlook Fuels Enhancements
[Page] 4 Future Focus: New Institute Supports Efforts In Science, Technology, Engineering, Math
[Page] 7 Grant Funding Updates
[Page] 8 Profiles in Leadership: Engaging Students Utilizing Problem-Based Learning
[Page] 9 Profiles in Leadership: The Value Of Experience-Based Learning
[Page] 10 Campus News
[Page] 12 Steps To Ensure Student Success: Support Fostered In Living-Learning Communities
[Page] 14 New Student Advising Model Gets High Marks
[Page] 15 Student To Student: Ag Bio Ambassadors Relish Role As Front Line Recruiters
[Page] 16 Remembering Dr. Robert Pengra: SDSU Alums Establish Tribute Scholarship …
