Food Science Commons^™

Characterization Of Lactose Monolaurate For Its Antimicrobial And Emulsification Properties And Its Effect On Crystallization Behavior Of Anhydrous Milk Fat, Ashwini Wagh

All Graduate Theses and Dissertations

There is a constant need of new synthetic emulsifiers in the food industry. Sugar esters are widely used as food grade synthetic emulsifiers, amongst which sucrose esters are the most common. Although sucrose esters are used very frequently, little is known about the use of lactose esters in food. There is a need for characterization of lactose esters before they can be used in foods. The objective of this study was to characterize a lactose ester, lactose monolaurate (LML) as an antimicrobial agent on food pathogens, evaluate its effect on 20 % oil-in-water emulsions as an emulsifier, and to explore its ...

Bioactivities Of Milk Polar Lipids In Influencing Intestinal Barrier Integrity, Systemic Inflammation, And Lipid Metabolism, Albert Lihong Zhou

All Graduate Theses and Dissertations

The purpose of lactation is for nutrient provision and also importantly for protection from various environmental stressors. Milk polar lipids reduce cholesterol, protect against bacterial infection, reduce inflammation and help maintain gut integrity. Dynamic interactions within dietary fat, lipid metabolism, gut permeability and inflammatory cytokines remain unclear in the context of obesity and systemic inflammation. A rat model and three mouse models were developed to test the hypotheses that dietary milk polar lipids may affect lipid metabolism and intestinal integrity and may protect against systemic inflammation in the context of stressful diet, systemic inflammation, and obesity. The milk polar lipids ...

Sp737 Efnep Partner Brochure, Janie Burney

Food, Nutrition and Food Safety

Expanded Food and Nutrition Education Program information for program partners

Sp746-B Good Agricultural Practices (Gap) Certification In Tennessee, Faith Critzer, Annette Wszelaki

Food, Nutrition and Food Safety

No abstract provided.

Sp747-B Manufacturing Formulated Acid Foods In Tennessee, Faith Critzer, P. Michael Davidson, John Mount

Food, Nutrition and Food Safety

No abstract provided.

Sp747-A Manufacturing Acidified Foods In Tennessee, Faith Critzer

Food, Nutrition and Food Safety

No abstract provided.

Optimization Of Fermentation Conditions For The Utilization Of Brewing Waste To Develop A Nutraceutical Rich Liquid Product, Shilpi Gupta, Amit Kumar Jaiswal, Nissreen Abu-Ghannam

Articles

Utilization of brewers’ spent grain (BSG), for the development of a fermented liquid product rich in value-added phenolic compounds was investigated. Changes in and liberation of phenolic compounds and antioxidant activity during fermentation of BSG was studied. The effect of various particle size (PS), solid liquid (SL) ratio, fermentation time and rotation speed was optimized using response surface methodology (RSM) for the purpose of improving bacterial growth and the enhancement in the release of polyphenolic compounds. Contour maps generated using the response surface equation showed that the experimental variables significantly affected the response. A production of 10.4 log cfu ...

Food Defense Among Meat Processing And Food Service Establishments In Kentucky, Morgan Webb-Yeates

Masters Theses & Specialist Projects

Agroterrorism is the deliberate introduction of a plant or animal disease with the
goal of causing fear, economic instability, illness, or death. After the 2002 terrorist
attacks on the World Trade Center, the security of the food supply is of increasing
concern to the United States. A major incidence of agroterrorism or food tampering would have far reaching impacts on the economy and public health. The first objective of this project was to determine knowledge and concern of agroterrorism in meat processing facilities in Kentucky, and to determine knowledge and concern of food tampering and food defense in food service ...

Isolation And Characterization Of Active Elderberry Fractions That Inhibit Melanoma Growth In Vitro And In Vivo, Alexandra M. Okihiro

Master's Theses

The incidence rates of melanoma continue to rise annually despite recent progression in cancer treatments. Cancer is the most prevalent amongst elderly individuals, where immunosenescence has compromised some immune function, and therefore decreased certain tumor detection abilities. Current tumor removal strategies include radiation, chemotherapy and surgical excision: treatments that aim to lower cancer cells, but may also affect normal cells in the process. In the case of chemotherapy, which targets and kills rapidly dividing cells, many immune cells are lowered as a side effect, leaving many patients immune-suppressed and more susceptible to infection. There is a need for naturopathic treatments ...

Isolation And Partial Characterization Of Bioactive Fucoxanthin From Himanthalia Elongata Brown Seaweed: A Tlc-Based Approach, Gaurav Rajauria, Nissreen Abu-Ghannam

Articles

Seaweeds are important sources of carotenoids, and numerous studies have shown the beneficial effects of these pigments on human health. In the present study, Himanthalia elongata brown seaweed was extracted with a mixture of low polarity solvents, and the crude extract was separated using analytical thin-layer chromatography (TLC).The separated compounds were tested for their potential antioxidant capacity and antimicrobial activity against Listeria monocytogenes bacteria using TLC bioautography approach. For bio-autography, the coloured band on TLC chromatogram was visualized after spraying with DPPH and triphenyltetrazolium chloride reagents which screen antioxidant and antimicrobial compounds, respectively, and only one active compound was ...

Astaxanthin: A Comparative Case Of Synthetic Vs. Natural Production, Khoa Dang Nguyen

Chemical and Biomolecular Engineering Publications and Other Works

Astaxanthin, the “king of carotenoids” has been widely used as an animal feed additive for several decades, mainly in the aquaculture industry. Recent studies have led to its emergence as a potent antioxidant available for human consumption. Traditionally it has been chemically synthesized, but the recent market interest has generated interests in producing it naturally via yeast (Phaffia rhodozyma) fermentation, or algal (Haematococcus pluvialis) induction. This work aims to compare these production processes and their impact on the economical, environmental, and societal scale. We also look at the attempts of increasing production yields by altering various parameters during all three ...

Antilisterial Characteristics Of Volatile Essential Oils, Leeann L. Slaughter

Theses and Dissertations--Animal and Food Sciences

This study explored the in vitro and in situ antilisterial inhibitory activity of 16 essential oils during indirect exposure: Spanish Basil oil (Ocimum basilicum), Bay oil (Pimenta racemosa), Italian Bergamot oil (Citrus bergamia), Roman Chamomile oil (Anthemis nobilis), Sir Lanka Cinnamon oil (Cinnamomum zeylanicum), Citral, Clove Bud oil (Syzygium aromaticum), Cumin Seed oil (cuminum cyminum), Eucalyptus oil (Eucalyptus globulus), Eugenol, Geranium extract (Pelargonium graveolens), Marjoram oil (Origanum majorana), Neroli extract (Citrus aurantium), Peppermint oil (Mentha piperita L.), Rosemary oil (Rosmarinus officinalis L.),and Spanish Sage oil (Salvia officinalis L.). All essential oils were tested against Listeria monocytogenes (ATCC 4644). In ...

Degradation Kinetic Modelling Of Colour, Texture, Polyphenols And Antioxidant Capacity Of York Cabbage After Microwave Processing, Amit Kumar Jaiswal, Nissreen Abu-Ghannam

Articles

Vegetables as an essential component of the human diet usually undergo some type of processing before being consumed. In the present study, impact of microwave (MW) processing on various physiochemical properties of York cabbage was studied. York cabbage was processed at 400, 560 and 800W for 0 to 14 min with an increment of 2 min followed by a kinetic study for the degradation of polyphenols, flavonoids, antioxidant capacity, colour and texture were carried out. Results showed that MW processing leads to significant reductions in the texture, colour, polyphenols and antioxidant capacity. For all the MW processing power studied total ...

Farmers Markets And The Local Food System: The Case Of Gettysburg, Pennsylvania, Paul A. Di Salvo '13, Claire Quinn '13, Robin Arnold '13, Caroline Clark '13, Suzanne Englot '13, Andrew Mello '13, Julia Mitchell '13, Emily Ruhl '13, Rebecca Taormina '13, Cashin Conover '13, Valerie Leone '13, Michael Mattaini '13, William Patton '13, Elizabeth Rouillard '13, Nicholas Smith-Herman '13, Jordan Swenson '13, Kelly Webster '13, Brian Wooldredge '13, Randall K. Wilson

Student Publications

In order to examine and obtain a better understanding of the local food system within Adams County, Pennsylvania, this study explores the characteristics and perspectives of the customers and vendors at the farmers markets in Gettysburg, Pennsylvania. Survey findings from the Gettysburg Farmers Market and the three Adams County Farmers Markets include customer demographic information, perspectives and shopping behavior as well as vendor product information, farm size and location and preference for market management. Introductory background information on the Farm Bill and the influence of agricultural practices on the environment, human health and nutrition and the relationship between farmers markets ...

Impact Of Rearing Conditions On The Microbiological Quality Of Retail Poultry Meat, Bridgshe Hardy

Masters Theses

Poultry and poultry products are a leading source of foodborne pathogens and illnesses. The rearing conditions of poultry can be an influential factor on the presence of foodborne pathogens including Campylobacter and Salmonella because some types of rearing practices have increased risks in terms of biosecurity. However, there is a gap in knowledge of food safety in raw chicken products and no studies have reported the microbiological quality of turkeys produced under different rearing environments. Thus, the aim of this study was to compare conventionally and organically-reared whole chicken and turkey carcasses purchased from three retail outlets in Knoxville, TN ...

Casein Micelles From Bovine Milk: Native Structure, Interactions, And Practical Applications Of Their Structural Modification, Raymundo Trejo

Doctoral Dissertations

A definitive structure of the native casein micelle structure continues to elude researchers. Data and images obtained via cryo - transmission electron microscopy of isolated native casein micelles allowed for the reconstruction of a three dimensional model of the micelle; which contains water filled cavities (ca. 20 to 30 nm diameter), channels (diameter larger than ca. 5 nm), and several hundred high density nanoclusters (6-12 nm diameter) within the interior of the micelles.

The SDS polyacrylamide gel electrophoresis of isolated micelles (pH 6.8, 5.0) showed that whey proteins were found associated with the isolated micelles regardless of the pH ...

Isolation, Antibiotic Resistance, And Molecular Characterization Of Campylobacter From Poultry, Swine And Dairy Cows, Willie James Taylor

Doctoral Dissertations

This study was conducted to determine presence, antibiotic resistance, and genetic relatedness of Campylobacter on diverse farm types. Cloacal fecal samples from poultry (broilers, layers, and turkey breeders), and fecal rectal samples from non-poultry animals (farrowing sows, finisher pigs, and lactating dairy cows) were tested for Campylobacter using BAM protocols. Agar disk diffusion method was used to determine antibiotic resistance, and PFGE analysis to determine genetic relatedness of isolates recovered within the different farm types. Campylobacter was detected in 34.8% (range of 6.7 to 62.0%, P < 0.001) of cloacal samples from poultry, in 61.4% (range of 55.0 to 69.0%, P < 0.05), and 26.0% (range of 19.0 to 34.0%, P < 0.05) of rectal samples from pigs, and dairy cows, respectively. Antibiotic resistance was detected in 30.2% (range of ...

Risk Assessment Of Trace And Undeclared Allergens In Processed Foods, Benjamin C. Remington

Dissertations & Theses in Food Science and Technology

Minimal eliciting doses for objective allergic reactions were found for 13 priority allergens and over 1800 individuals from published clinical literature or unpublished clinical data. Allergic populations did not vary when analyzed by age or geographic region. Results of this study show there are sufficient clinical data from food allergic individuals to use for risk assessment purposes for several allergenic foods.

Of 186 food products bearing advisory statements regarding peanut or 16 products that had peanut listed as a minor ingredient, 8.6% and 37.5% contained detectable levels of peanut (>2.5 ppm whole peanut). An additional market survey ...

Items To Be Included In A Food Safety Handbook For Artisan Cheese Makers, David A. Irish

All Graduate Reports and Creative Projects

Current written resources for artisan cheese makers include topics concerning cheese history, cheese recipes, budget planning, culture selection, processing parameters, and only limited discussion of food safety associated with cheese manufacturing. Most often food safety discussions center on HACCP, which typically are not included in artisan cheese operation planning. Recent changes in the regulatory landscape, including the Food Safety Modernization Act, make this information timely and needed. This research is designed to identify and collect a majority of topical ideas that should be included in a Food Safety Handbook for Artisan Cheese Makers. Where possible, expansion of the ideas has ...

An Online Customer Service Survey To Determine Current Levels Of Customer Satisfaction At A Crossfit Gym, Sarah Lewis

All Graduate Reports and Creative Projects

A study was conducted by researchers from Utah State University at Northland Strength and Conditioning/Combat CrossFit to determine the customer satisfaction levels at a CrossFit gym in Liberty, Missouri. A survey was created and sent to current and previous members and responses were analyzed for trends and areas of strengths and weaknesses in the business. Of 194 surveys sent, 67 (35%) were returned. Data was analyzed using the survey administration platform provided by Constant Contact and also by Excel spreadsheet and statistical analyses.

Several areas of improvement were identified, including advertising opportunities with exterior signage, offering more classes or ...