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Proteomics Study Of Pre-Harvest Sprouting In Wheat, Pramod Khadka Jan 2016

Proteomics Study Of Pre-Harvest Sprouting In Wheat, Pramod Khadka

Electronic Theses and Dissertations

Pre-harvest sprouting (PHS) of wheat (Triticum aestivum L.) is a condition characterized by the early germination of spikes during moist environmental conditions. PHS lowers yield, degrades the quality of grain and thus limits the profits of wheat producers groups. During this investigation, proteomics studies of PHS-resistant and PHS-susceptible wheat embryos were conducted at different imbibition time periods via a cutting-edge technology called iTRAQ. Proteomic analysis revealed that 190 differentially expressed proteins might be involved in various cellular functions, such as carbohydrate metabolism, nitrogen metabolism, stress response, redox regulation, ATP synthesis, and protein translation, during this untimely germination of the wheat ...


Successful Weight Management: Barriers And Facilitators To Maintaining Weight After Weight Loss Via A Meal Replacement Program, Hope D. Kleine Jan 2016

Successful Weight Management: Barriers And Facilitators To Maintaining Weight After Weight Loss Via A Meal Replacement Program, Hope D. Kleine

Electronic Theses and Dissertations

Purpose: Meal replacement programs (MRPs) facilitate weight loss. Unfortunately, a large percentage of individuals that lose weight through MRP are not successful at maintaining their weight. Weight regain one year following weight loss via meal replacements has been as high as 40-50%, demonstrating a critical need to improve weight maintenance in MRP participants. Therefore, the purpose of this study is to identify barriers and facilitators of weight maintenance after reaching a goal weight in MRP participants.

Methods: Seven focus groups of ≤8 clients were conducted to discuss barriers and facilitators of weight maintenance prior to reaching a point of saturation ...


Protein And Fiber Fortification Of White Pan Bread Using Food-Grade Distiller’S Dried Grains, Ashley Adamski Jan 2016

Protein And Fiber Fortification Of White Pan Bread Using Food-Grade Distiller’S Dried Grains, Ashley Adamski

Electronic Theses and Dissertations

Distiller’s dried grains (DDG) are a coproduct of ethanol production. DDG has been used historically as animal feed. However, in the past decade, ethanol production has dramatically increased causing a surplus of distiller’s grains and saturating the market. The use of DDG, which is high in both protein and fiber, to fortify baked goods is one option to reduce the excess of DDG while enhancing its economic value. The purpose of this study was first, to evaluate the washing process for DDG to make it food grade, and second to evaluate the effects of incorporation of food-grade DDG ...


Use Of Extraction Technologies In Food Safety Studies, Changling Qiu Jan 2016

Use Of Extraction Technologies In Food Safety Studies, Changling Qiu

Electronic Theses and Dissertations

Food safety has become a top concern in our society. The public in general is increasingly concerned about the safety of the food products they consume every day as more and more food contamination incidents and widespread recalls arise. It is necessary to trace any presence and/or the concentration levels of contaminants, pesticides, herbicides, or other harmful substances in food samples. Sample preparation is a crucial step in a food analytical method, as it takes up most of the total analysis time, contributing highly to the total cost of analysis and greatly influencing the results of the analysis. Traditional ...


Influence Of Lactobacillus Rhamnosus Isolated From “Amabere Amaruranu” Cultured Milk On Adipogenesis, Justin E. Kotala Dec 2015

Influence Of Lactobacillus Rhamnosus Isolated From “Amabere Amaruranu” Cultured Milk On Adipogenesis, Justin E. Kotala

Electronic Theses and Dissertations

This study was performed to test the in vitro effects of a Lactobacillus rhamnosus isolate from “amabere amaruranu”, a traditional Kenyan cultured milk, on 3T3-L1 and Caco-2 cell lines. Cultures of fully mature 3T3-L1 adipocytes were treated with bacterial isolate cell extract (CE), filtered spent broth (FSB) from overnight bacterial culture, or with a PBS control. Expression levels of PPAR³1 and 2, C/EBP±, and ATGL proteins in 3T3-L1 cells were upregulated by FSB treatment. CE treatment did not affect protein expression levels. Expression of MTTP and SREBP-1c proteins in Caco-2 cells showed no change with either treatment. Optical density ...


Improving Extraction Of Allergenic Soy Proteins From Soy Products, Amma Konadu Amponsah Dec 2015

Improving Extraction Of Allergenic Soy Proteins From Soy Products, Amma Konadu Amponsah

Electronic Theses and Dissertations

With recent increase in the utilization of soy proteins, there are mounting concerns of the escalation of soy allergies. It is, therefore, important to improve current methods of allergen detection to ensure accurate labeling of foods, produce more reliable and representative results in studies to create hypoallergenic food and establish allergen thresholds. The conditions used to extract proteins from foods are important determinants for appropriate detection and interpretation of the allergenicity of food materials. The extraction of soy proteins for soy allergen detections is conventionally performed with phosphate buffered saline (PBS) buffer for an extraction period of at least 2 ...


Method Development For Vitamin C Quantification In Two Complex Matrices, Hannah D. Hutt Aug 2015

Method Development For Vitamin C Quantification In Two Complex Matrices, Hannah D. Hutt

Electronic Theses and Dissertations

The following liquid chromatographic (LC) method developments and applied research studies were done using two complex food matrices, potatoes and elderberries, which are common to the state of Maine. Potatoes are Maine’s largest agricultural crop, a staple food in most U.S. households, and are, from an analytical standpoint, considered a complex matrix due to the high starch content that can be difficult to remove without degrading or removing nutrients in the process. Elderberries are an emerging crop in the U.S. because of their antioxidant and anti-viral properties and are found growing wild, throughout Maine. Elderberries are also ...


Increasing The Nutritional Value Of Canola Meal Via Fungal Bioprocessing, Jason R. Croat Jan 2015

Increasing The Nutritional Value Of Canola Meal Via Fungal Bioprocessing, Jason R. Croat

Electronic Theses and Dissertations

The main limitation of meals from canola and other Brassica spp. is the presence of glucosinolates (GLS), which are anti-nutritional and can even be toxic at high ingestion levels. Furthermore, large amounts of GLS can reduce palatability for livestock and thus reduce intake and growth rates. For this reason canola was bred to contain lower levels of GLS (<30 μmol/g) and erucic acid (< 2%). However, feed inclusion rates are still limited to ~30%, and this reduces the value of canola meal. The goal of this thesis was to optimize a pretreatment and fungal conversion process to enhance the nutritional value of canola meal. Various combinations of physical/chemical pretreatments, fungal cultures, and incubation methods were investigated to metabolize GLS into cell mass, CO2, or other non-toxic components. These treatments also served to hydrolyze canola meal fiber into carbohydrates which were then metabolized by the fungi into single cell protein. Solid-state incubation conditions were initially tested, since filamentous fungi are well adapted to grow at lower moisture levels, and this would potentially reduce contamination issues with bacteria. Flask trials were performed using 50% moisture, hexane extracted (HE) or cold pressed (CP) canola meal, with incubation for 168 h at 30ºC. On HE canola meal Trichoderma reesei (NRRL-3653) achieved the greatest increase in protein content (23%), while having the lowest residual levels of sugar (8% w/w) and GLS (0.4 μM/g). On CP canola meal T. reesei (NRRL-3653), Aureobasidium pullulans (NRRL-58522), and A. pullulans (NRRL-Y-2311-1 ...


Probiotic Potential Of Bacterial Isolates From ‘Amabere Amaruranu’ Cultured Milk, Blaise B. Boyiri Aug 2014

Probiotic Potential Of Bacterial Isolates From ‘Amabere Amaruranu’ Cultured Milk, Blaise B. Boyiri

Electronic Theses and Dissertations

Probiotics are viable nonpathogenic microbes that positively affect host health. Probiotics inhibit infection, activate immunity, and promote mucosal-barrier development. Many microbes have probiotic activity. Nonetheless, the selection of stable strains and their specific mechanism(s) of action are not fully elucidated. Bacteria from ‘Amabere amaruranu’ cultured milk from Kenya were isolated and identified by PCR sequence analysis of the 16S rRNA gene. Isolates were examined for stability to acid and bile, antimicrobial activity, mucin production, and degradation and sensitivity to antibiotics, hence their potential for probiotics. Lactobacillus isolates were acid unstable, bile-stable, nonmucinolytic, and presented antibacterial activity. L. rhamnosus cell ...


Effects Of High Pressure Processing On The Quality Of Farm-Raised Abalone (Haliotis Rufescens), Brianna H. Hughes May 2014

Effects Of High Pressure Processing On The Quality Of Farm-Raised Abalone (Haliotis Rufescens), Brianna H. Hughes

Electronic Theses and Dissertations

High pressure processing (HPP) is a non-thermal method used to increase food safety and shelf-life. HPP has been explored for meat tenderization, with conflicting results depending on rigor status during HPP. In the seafood industry, HPP is used to shuck oysters and lobsters, but has been minimally investigated for use in processing abalones. Abalones are shellfish with high perishability that are typically sold live or frozen in the U.S. HPP has been proposed as an alternative method to process shucked abalone meats. The objectives of this research were to evaluate the effects of 1) rigor status during HPP on ...


The Effect Of Wild Blueberry Consumption On The Inflammatory Response, Oxidative Stress And Dna Damage Associated With Exercise, Taylor K. Bloedon Dec 2013

The Effect Of Wild Blueberry Consumption On The Inflammatory Response, Oxidative Stress And Dna Damage Associated With Exercise, Taylor K. Bloedon

Electronic Theses and Dissertations

At all levels of intensity and duration, exercise is known to cause an increase in the generation of reactive oxygen species (ROS). When derivatives of oxygen occur and exist independently with one or more unpaired electrons they are known as “free radicals” (Halliwell and Gutteridge 2007). Since atoms possess electrons that are usually associated in pairs, free radicals have the potential to act negatively in the body. Reactive oxygen species refer to oxygen-centered radicals as well as nonradical but reactive derivatives of oxygen (Halliwell and Gutteridge 2007). When ROS are created in excess, resulting in the disruption of the pro-oxidant ...


Cultural Diabetes, Keri E. Noll Jan 2012

Cultural Diabetes, Keri E. Noll

Electronic Theses and Dissertations

Diabetes has become a cultural problem across America, but particularly in the Midwest and Southern regions. For my film, I explored these two areas and compared the food and exercise culture to one of the healthier regions, the West. Having moved from Indiana to Colorado, I used my own personal experiences to analyze why people in the Midwest struggle with diabetes and obesity at such a higher rate than those nearer to the Pacific Ocean. Through a series of interviews with close friends and observational analysis of each state, I came to learn something very important about health: our food ...


Mechanical Processing Of European Green Crab (Carcinus Maenas), The Development Of A Value-Added Product And The Use Of Restructuring Additives To Increase The Functional Properties Of Green Crab Patties, Joseph A. Galetti Dec 2010

Mechanical Processing Of European Green Crab (Carcinus Maenas), The Development Of A Value-Added Product And The Use Of Restructuring Additives To Increase The Functional Properties Of Green Crab Patties, Joseph A. Galetti

Electronic Theses and Dissertations

The European Green Crab (Carcinus maenas) has proven to be a successful invasive predator and has potential to be a valuable food source for human consumption. Due to the small size of green crab, hand picking commercial operations are not feasible. The objectives of this research were to develop uses for this undervalued resource by examining mechanical separation techniques of mince meat; developing a consumer acceptable mince meat product and exploring the functionality of green crab mince meat with additions of restructuring additives. The first part of this research was designed to determine how boil versus steam thermal processing, large ...


Assessing Sleep Quality In Young Adult College Students, Aged 18 - 24 In Relation To Quality Of Life And Anthropometrics, Douglas Mathews May 2010

Assessing Sleep Quality In Young Adult College Students, Aged 18 - 24 In Relation To Quality Of Life And Anthropometrics, Douglas Mathews

Electronic Theses and Dissertations

Little is known about the impact of sleep on quality of life and anthropometrics in young adults. College students (n=218) were recruited through a variety of methods for a study on weight management for obesity prevention and randomized into control (n=108) or treatment (n=110) groups. Of those, 152 (71%) completed pre- and post-tests, including the Pittsburg Sleep Quality Index (PSQI), scored 0-4 =normal and 5-21=disordered, (a=0.80), the General Health Questionnaire-12 (GHQ), scored from 0-14=good quality of life to 15-36=poor quality of life, (ct=0.87), and anthropometrics. Statistical analyses included linear regression ...


Reversed-Phase Hplc Determination Of Alliin In Diverse Varieties Of Fresh Garlic And Commercial Garlic Products., Aaron Kwaku Apawu Aug 2009

Reversed-Phase Hplc Determination Of Alliin In Diverse Varieties Of Fresh Garlic And Commercial Garlic Products., Aaron Kwaku Apawu

Electronic Theses and Dissertations

Alliin is a predominant flavor precursor in garlic cloves. It interacts with the enzyme alliinase when garlic cloves are crushed, cut, or chewed to produce allicin, an unstable thiosulfinate that is the main biologically active component of fresh crushed garlic. Biological functions and health benefits of garlic include reduction of cancer risk in humans, improving immune system, and anti-microbial, anti-oxidant, and anti-hypertensive activities. The quality of fresh garlic and garlic products is usually related to its alliin content and allicin release potential. This research presents a simple, rapid, and precise HPLC method for alliin determination. It involves ...


Comparison Of Artificial Flavors In Commercial Products And Actual Natural Flavor Via Gas Chromatography Mass Spectroscopy Data., Randi Jasmine Sluss Aug 2009

Comparison Of Artificial Flavors In Commercial Products And Actual Natural Flavor Via Gas Chromatography Mass Spectroscopy Data., Randi Jasmine Sluss

Electronic Theses and Dissertations

In this research project, real natural strawberries bought from different local sources were profiled by gas chromatography-mass spectroscopy (GCMS). These profiles were then used as a reference to compare GCMS profiles of commercial artificial strawberry flavor products such as strawberry flavored Cool Splashers™, Gatorade®, and Aquacal® flavored water. The chromatograms obtained were patterned using simple visual observations, scatter plot designs, Mann-Whitney U Test, and correlation coefficients. The artificially flavored commercial products tend to have simpler chromatograms. The Burger King® milkshake, Gatorade®, and Hi-C® are the most similar to that of the natural strawberry flavor. Their correlation coefficients are 0.972 ...


Analysis Of Melamine And Cyanuric Acid By Liquid Chromatography With Diode Array Detection And Tandem Mass Spectrometry, Byungchul Kim May 2009

Analysis Of Melamine And Cyanuric Acid By Liquid Chromatography With Diode Array Detection And Tandem Mass Spectrometry, Byungchul Kim

Electronic Theses and Dissertations

Melamine and cyanuric acid are the compounds that caused the global incidences of kidney related disease to pets and infants in North America and China during the last two years. After a concerted research effort by U.S. laboratories, it was discovered that they were intentionally added in raw ingredients to pet foods or milk to increase nitrogen levels without providing protein. Melamine and cyanuric acid can easily combine by hydrogen bonding and produce a melamine-cyanurate complex that directly caused renal failure to pets and infants who consumed the tainted pet food or milk. Many analytical methods for the determination ...


The Effect Of Wild Blueberries On Endothelium-Dependent Vasodilation In Spontaneously Hypertensive Rats, Aleksandra S. Kristo Aug 2008

The Effect Of Wild Blueberries On Endothelium-Dependent Vasodilation In Spontaneously Hypertensive Rats, Aleksandra S. Kristo

Electronic Theses and Dissertations

The effect of wild blueberries on major endothelium-dependent vasodilation pathways and arterial blood pressure (BP) was examined in the young adult Spontaneously Hypertensive rat (SHR), used as a model of endothelial dysfunction, and the Wistar Kyoto (WK) rat, with functional endothelium, used as the control. Male SHR and WK rats were fed a control (SHR-C and WK-C), or a wild blueberry-enriched (SHR-B and WK-B) diet for nine weeks. By the age of 21 weeks, thoracic aortae were excised and 3mm arterial rings were prepared and immersed in Radnoti tissue baths. Rings were precontractred with phenylephrine (Phe) (10"6M), followed by ...


Serum 25-Hydroxyvitamin D Response To Daily Oral Supplementation With 800 Iu Cholecalciferol In Premenopausal Women Living In Maine, Monica Nelson Dec 2007

Serum 25-Hydroxyvitamin D Response To Daily Oral Supplementation With 800 Iu Cholecalciferol In Premenopausal Women Living In Maine, Monica Nelson

Electronic Theses and Dissertations

The purpose of this research was to measure the serum 25-hydroxyvitamin D [25(OH)D] response to daily supplementation with 800 IU vitamin D3 during winter in premenopausal women living in Maine, and to examine the effects of body composition and hormonal contraceptive use on baseline serum 25(OH)D levels and the response to supplementation. One hundred twelve women (22.2±3.7 years old) received placebo from March 2005 until September 2005 when they were randomized to receive either placebo or 800 IU vitamin D3 through February 2006. Eighty-six women completed the study. Body composition was measured by ...


Development Of A Soy-Blueberry Burger And The Changes In Anthocyanins And Phenolics During Storage And Broiling, Pamela Beth Small Aug 2007

Development Of A Soy-Blueberry Burger And The Changes In Anthocyanins And Phenolics During Storage And Broiling, Pamela Beth Small

Electronic Theses and Dissertations

Blueberries are high in phenolic acids and flavonoids, which make them one of the leading sources of antioxidants. When added to foods, antioxidants can increase shelf life, maintain nutritional quality, and retard production of heterocyclic amines in meats during cooking thus having the potential to be of great significance to the food industry. Soy and soy-based foods have been gaining in popularity as a functional food for specific health conditions. Increased media coverage touting the health benefits of soy has generated a rise in consumer awareness. Two soy-blueberry burgers were prepared using 10 and 15% blueberry puree. A soy burger ...


Reversed-Phase Hplc Determination Of Cholesterol In Food Items., David Christian Essaka May 2007

Reversed-Phase Hplc Determination Of Cholesterol In Food Items., David Christian Essaka

Electronic Theses and Dissertations

Cholesterol is a fat-like molecule found among lipids in animal (including human) tissues. It is needed for maintaining good health. However, health issues have been raised because of the strong correlation between high levels of cholesterol in the body and cardiovascular disease. An HPLC method for quantitative determination of cholesterol in foods is presented. This involves a C-18 stationary phase using a 70:30 methanol: 2-propanol mobile phase with an UV detector set at 212 nm. The method showed linearity in the range 5.0 to 100.0 μg/mL and also good reproducibility with relative standard deviation of 4 ...


Gelation Of Previously Cooked Jonah Crab (Cancer Borealis) Minced Meat In New Food Product Development, Shari R. Baxter May 2007

Gelation Of Previously Cooked Jonah Crab (Cancer Borealis) Minced Meat In New Food Product Development, Shari R. Baxter

Electronic Theses and Dissertations

Gelation of meat products plays an important role in utilization of by-products. Low-value muscle tissue that may go to waste can be reformed into new products that consumers find acceptable and want to purchase. In the crab industry, the need for byproduct utilization is great. Crab processing typically involves cooking whole crabs and picking the claw meat. A lower grade minced meat can then be extracted mechanically from the walking legs and carapace of the crab. Traditional protein chemistry indicates that only raw muscle proteins can form gels. However, by using a modified surimi processing technique, previously cooked Jonah crab ...


Determination Of Cholesterol In Foods By Flow Injection Analysis With Perroxyoxalate Chemiluminescence., Abisake Feleke Aug 2006

Determination Of Cholesterol In Foods By Flow Injection Analysis With Perroxyoxalate Chemiluminescence., Abisake Feleke

Electronic Theses and Dissertations

Cholesterol is an important biological molecule with many important functions. However, high serum cholesterol is a health hazard. Thus analysis of cholesterol is important and many analytical techniques have been developed. The objectives of the proposed research are to develop an economical, rapid method for the determination of total cholesterol with good selectivity and enhanced sensitivity. For evaluation of proposed flow injection analysis with peroxyoxalate chemiluminescence (FIA-POCL) method, figures of merit such as accuracy, precision, and linear dynamic range will be assessed. The proposed procedure was then applied to the determination of total cholesterol in foods. The procedure was linear ...


Tourism Stakeholders Envision A Sustainable Path: Strengthening Maine's No. 1 Industry Through The Blaine House Conference Recommendations, Elizabeth Munding Jan 2006

Tourism Stakeholders Envision A Sustainable Path: Strengthening Maine's No. 1 Industry Through The Blaine House Conference Recommendations, Elizabeth Munding

Electronic Theses and Dissertations

Tourism, as Maine’s No. 1 industry, draws approximately 44 million visitors annually who spend $6 billion and contribute $340 million in sales tax. Despite these figures, annual statistics show zero growth or, often, loss, with the exception of the outdoor recreation sector. The tourism industry, made of government bodies, recreation associations and individual businesses, depends on the health of the natural resources and the compliance of related players, such as landowners. Discontent exists with the state and the industry’s leadership. The quandary comes in determining which actions to take to improve the state’s existing nature-based tourism into ...


Dietary Patterns Of Mediterranean Adolescents, Sandra Ellan Brussee Aug 2005

Dietary Patterns Of Mediterranean Adolescents, Sandra Ellan Brussee

Electronic Theses and Dissertations

The Mediterranean Diet (MD) is renowned for its health benefits. However, adherence appears to be lessening in the Mediterranean region as rates of overweight, obesity, and chronic disease are increasing. The adoption of a "western diet" (high amounts of meats, refined grains, snacks, and fast-food products) has been termed the "Nutrition Transition". Adolescents appear to be the most affected; therefore their diets and eating patterns were examined in this study. The objectives were to study food group-based consumption of adolescents, compare average servings with recommendations from the USDA Food Guide Pyramid (FGP) and the MD Pyramid, identify and compare eating ...


The Effect Of Dietary Manganese On Arterial Functional Properties, Anastasia Z. Kalea Aug 2005

The Effect Of Dietary Manganese On Arterial Functional Properties, Anastasia Z. Kalea

Electronic Theses and Dissertations

Dietary manganese affects the structure and integrity of blood vessels, as well as vessel predisposition to endothelial dysfunction and cardiovascular disease. In this thesis, we studied the role of manganese on the functional properties of rat aorta as defined by the endothelial and vascular smooth muscle cell pathways for adrenergic-mediated vasoconstriction and cholinergic-mediated vasodilation. Weanling Sprague-Dawley rats were fed a manganese deficient (MnD), adequate (MnA-control group) or supplemented (MnS) diet (<1, 10-15 and 45-50ppm Mn respectively). After 14 weeks on the diet the aorta was excised and four aortic rings of three mm length were prepared from each animal. Alterations in vasoconstriction among diet groups were detected by dose-response curves to the ^-adrenergic agonist LPhenylephrine in endothelium-intact and endothelium-disrupted rings. Alterations in endothelium-dependent vasodilation among diet groups were determined by doseresponse curves to Acetylcholine. We studied the mechanism by which dietary manganese affects two different endothelium-dependent vasodilation pathways: the Larginine/ nitric oxide (NO) and the cyclooxygenase (COX) pathways. Inhibition of the enzymes for NO synthesis (NOS) with L-NMMA, and of prostanoids (COX I and II) with Mefenamic acid, determination of NOS expression, and in vitro addition of L-Arginine (substrate for NO formation) to vessel rings revealed the effect of manganese on the regulation of endothelium-mediated vasodilation and vasoconstriction. Dose-response curves to sodium nitroprusside provided data for the dietary effect on endotheliumindependent vasodilation. Supplementary dietary manganese increased adrenoreceptor-mediated vascular smooth muscle contraction, which was significantly reduced in the presence of functional endothelium. Absence of dietary manganese increased endothelial cell sensitivity to the (Xi-adrenergic vasoconstrictor agent. Manganese had a small effect on the cGMP-pathway for dilation of vascular smooth muscle but affected vasodilation primarily through an endothelium-mediated pathway, probably by preserving NO bioavailability. Inhibition of vasodilation in Mn deficiency appears to occur through an endothelium-derived vasoconstrictor, possibly thromboxane with a concomitant decrease in the synthesis of endothelium-mediated vasodilator prostanoids. Our results demonstrate that dietary manganese influences the contractile machinery of vascular smooth muscle cells and regulates the bioactivity of endothelium-mediated vasodilators to affect agonist-induced signaling pathways that participate in the regulation of vasomotor tone. This suggests possibilities for dietary intervention in blood pressure regulation.


The Effect Of Whole Wild Blueberries On Endothelial Function Of The Sprague-Dawley Rat As Related To Cardiovascular Disease, Cynthia Ann Norton Dec 2003

The Effect Of Whole Wild Blueberries On Endothelial Function Of The Sprague-Dawley Rat As Related To Cardiovascular Disease, Cynthia Ann Norton

Electronic Theses and Dissertations

Weanling male Sprague-Dawley rats were randomly fed three different diets (n=8 per group), a control diet (AIN '93) (C), a blueberry diet (B) for 13 weeks and a reverse diet (R)(C for 13 weeks, switched to B for 8 weeks). Aortae were excised, rings were prepared, and two intact and two denuded rings were immersed in tissue baths containing physiological salt solution (PSS) at 37OC, aerated with 95% 0 2 and 5% CO2 (pH 7.4). Following equilibration and pre-conditioning under 1 Sgm preload, cumulative dose response curves were generated with six doses of the a-1 adrenergic receptor ...


Determination Of Residential-Use Turf Pesticides In Surface And Ground Water By Hplc/Dad, Danyun Zhu Dec 2003

Determination Of Residential-Use Turf Pesticides In Surface And Ground Water By Hplc/Dad, Danyun Zhu

Electronic Theses and Dissertations

A simple. relatively fast, and efficient method has been developed for the simultaneous detection of residual levels of the pesticides dithiopyr, fenoxaprop-1'-e~hyl, l~alofenozide, and oryzalin in surface and ground water. This method involves solid phase (SPE) extraction/clean-up of these pesticides from water, followed by detcction and quantification by a high performance liquid chromatograph (HPLC) equipped with a photo diode array detector (DAD). The recoveries for dithiopyr, fenoxaprop-l'-c~I~yl. halofenozide, and oryzalin were performed by fortifying ground water from 0.1 ppb to 100 ppb, and surface water from 0.2 ppb to 100 ppb ...


Evaluating Attitudes Of Obesity And Their Change Processes Among Student Teachers And School Teachers On The World Wide Web Using The Elaboration Likelihood Model, Anne L. Hague Aug 2003

Evaluating Attitudes Of Obesity And Their Change Processes Among Student Teachers And School Teachers On The World Wide Web Using The Elaboration Likelihood Model, Anne L. Hague

Electronic Theses and Dissertations

Teachers have an active role in helping to prevent and deter stigmatizing acts toward children labeled as "fat." The objective was to examine attitudes of obesity and their change processes among student teachers and schoolteachers, when exposed to a Web-based educational module promoting size acceptance, using the Elaboration- Likelihood Model (ELM). The ELM is a theoretical approach to message-based persuasion specifying conditions under which attitude change occurs. The theory was used to explain the impact of the module (content included etiological factors of obesity, implications of weight loss efforts, and emotionaVpsychosocia1 effects of obesity), high nutrition credibility of the module ...


Antimicrobial Use Of Native And Enzymatically Degraded Chitosans For Seafood Applications, Todd Andrew Nicholas May 2003

Antimicrobial Use Of Native And Enzymatically Degraded Chitosans For Seafood Applications, Todd Andrew Nicholas

Electronic Theses and Dissertations

Millions of pounds of crab and shrimp shell waste are created every year by the seafood industry. This waste is very resistant to biodegradation and disposal is problematic. Crustacean shells are composed mainly of chitin that can be converted to chitosan by deacetylation. Many current shelf life extension and pathogen inhibition methods employ the use of various chemical preservatives. Chitosan, an abundant natural polysaccharide, possesses antimicrobial as well as functional properties that may be useful in improving quality of stored foods. These properties may be influenced by a number of factors that must be studied before determining the most useful ...