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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 ...


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 ...


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 ...


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 ...


The Use Of Polyphosphates To Maintain Yield And Quality Of Whole Cooked, Cryogenically Frozen Lobster (Homarus Americanus) And The Use Of Sorbitol And Tocopherol To Maintain Quality Of Whole Cooked, Cryogenically Frozen Crab (Cancer Irroratus), Beth Louise Calder May 2003

The Use Of Polyphosphates To Maintain Yield And Quality Of Whole Cooked, Cryogenically Frozen Lobster (Homarus Americanus) And The Use Of Sorbitol And Tocopherol To Maintain Quality Of Whole Cooked, Cryogenically Frozen Crab (Cancer Irroratus), Beth Louise Calder

Electronic Theses and Dissertations

The lobster fishery is valuable to Maine seafood processors, a commodity worth over $160 million dollars in 2001. Jonah and Rock crab are underutilized Maine seafood species, which are incidentally caught with lobster. Maine seafood processors could process this non-essential catch, and lobster into high quality frozen seafood products to increase national and international markets, which may have a significant economic impact. Cryogenic freezing can retain high quality texture and flavor attributes in seafood. Freezing can still cause cellular damage, however minimal. Sodium tripolyphophate (STP) and sorbitol are noted for their cryoprotectant effects, and tocopherol has been found to have ...


Antioxidant Assessment In Western Maine Elderly Women Following 30 Days Of Wild Blueberry Consumption, John David Bagnulo May 2003

Antioxidant Assessment In Western Maine Elderly Women Following 30 Days Of Wild Blueberry Consumption, John David Bagnulo

Electronic Theses and Dissertations

Increased fruit and vegetable consumption is the single most protective characteristic of a diet against disease. While the exact mechanism by which this protection is offered remains unclear, the leading theory is centered on the antioxidant content of fruits and vegetables. Recent studies have shown that certain fruits and vegetables have significantly higher antioxidant contents than others. Wild North American blueberries (Vaccinium angustifolium) have one of the highest antioxidant contents of all h i t s and vegetables tested. This thesis investigates the relationship between the consumption of blueberries and blood antioxidant levels in 24 elderly women. In addition, fruits ...


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 ...


Testing Two Food Frequency Questionnaires And Stage-Based Newsletters With Economically Disadvantaged Young Adults, Beth J. Williams May 2003

Testing Two Food Frequency Questionnaires And Stage-Based Newsletters With Economically Disadvantaged Young Adults, Beth J. Williams

Electronic Theses and Dissertations

One of the most important ways to decrease risk of chronic disease development is to consume ample portions of h i t and vegetables. However, less than one-third of young adults meet "5-A-Day" servings, and variety is limited. Economically disadvantaged young adults may be especially vulnerable and are a hard to reach audience. Many of the Cooperative Extension programs are designed to reach low-income audiences and assist them in making changes in knowledge, skills, attitudes, and dietary choices for nutritional well-being. The objectives of this study were, in Phase I, to test two food frequency instruments for feasibility of use ...


Effects Of Post-Harvest Treatments On The Microbiological Quality And Pesticide Residues Of Lowbush Blueberries, Kristi Michele Crowe Dec 2002

Effects Of Post-Harvest Treatments On The Microbiological Quality And Pesticide Residues Of Lowbush Blueberries, Kristi Michele Crowe

Electronic Theses and Dissertations

Lowbush blueberries of the species Vaccinium angustifohm are native to the Northeast United States. In the state of Maine, lowbush blueberries are commercially managed and harvested each year to be marketed as either IQF (individually quick fiozen) or fiesh pack. Since IQF berries are processed at the field level, post-harvest treatments must be effective in ensuring crop quality and safety. Furthermore, with the increase in concern for microbiological and chemical food safety, post-harvest treatment of lowbush blueberries must be effective in reducing microbial populations and pesticide residues. Currently, the Maine Wild Blueberry Industry incorporates a 50-100ppm chlorinated water spray into ...


Validation Of Physical Activity Recording By Adolescent Girls, Alison Camesano Dec 2002

Validation Of Physical Activity Recording By Adolescent Girls, Alison Camesano

Electronic Theses and Dissertations

Physical activity is recorded in bone mineralization studies because physical activity increases bone mass and decreases the risk of osteoporosis. The purpose of this research was to validate a method of physical activity recording used in a longitudinal bone study of adolescent girls. The physical activity recording method was a combination of a diary and an interview-administered recall. The method was validated against an objective measure of physical activity. Twenty-four adolescent girls between the ages of 9.8 and 14.1 wore Stayhealthy RT3 Research Trackers (tri-axial accelerometers) arid recorded their activity for 24 hours on a diary form. The ...


Effects Of Different Lowbush Blueberry Purees On Lipid Oxidation In Pre-Cooked Ground Turkey Patties, Kathleen Gabriel Buzzard Dec 2002

Effects Of Different Lowbush Blueberry Purees On Lipid Oxidation In Pre-Cooked Ground Turkey Patties, Kathleen Gabriel Buzzard

Electronic Theses and Dissertations

A growing trend in the food industry is the development of pre-cooked, ready-to-eat, meat products that only require reheating. However, reheating meats creates off-flavors that have been identified as warmed-over flavors (WOF). The off-flavors pose a problem to product development specialists during the development of cooked meat products. Lipid oxidation has been determined to effect warmed-over flavor, texture, and the appearance of reheated meat products. Ground turkey undergoes lipid oxidation rapidly because of its high-unsaturated fat content. Blueberries contain antioxidants, including anthocyanins and phenolic acids, which could potentially retard the rate of lipid oxidation in precooked meats. Blueberries are assorted ...


Determination Of Residual Hexazinone In Maine's Soil And Water, L. Brian Perkins Aug 2002

Determination Of Residual Hexazinone In Maine's Soil And Water, L. Brian Perkins

Electronic Theses and Dissertations

Hexazinone, a systemic herbicide registered for use on wild blueberries in 1983 is credited with increasing Maine's wild blueberry crop by three-fold over a 10 year period, while also increasing overall fruit quality. Unfortunately, the high water solubility of hexazinone gives it a high leaching potential. This solubility factor is exacerbated by the sandy soils where wild blueberries are commonly propagated. In 1991 a routine screen for pesticides used in blueberry agriculture revealed traces of hexazinone in water samples from property formerly used for blueberry production. This discovery has led to the development of solid phase extraction (SPE) and ...


Pasteurization Of Apple Cider With Uv Irradiation, Nazife Canitez May 2002

Pasteurization Of Apple Cider With Uv Irradiation, Nazife Canitez

Electronic Theses and Dissertations

In a period of increasing concern about food safety, food poisoning outbreaks where unpasterurized apple cider or apple juice was found contaminated with Escherichia coli 0157:H7 reinforces the need for using the best technologies in apple cider production. Most apple cider is sold as an unpasteurized raw product. Because of their acidity, it was believed that juice products do not usually contain microorganisms such as E. coli 0157:H7, Salmonella, and Crytosporidium. Yet all of these foodborne pathogens are capable of being transmitted in unpasteurized juices. It is known that these pathogens can survive for several weeks in a ...


Complementary And Alternative Medicines: The Knowledge, Attitudes And Practices Of Dietitians In Maine, Jennifer Kristy Lawrance May 2002

Complementary And Alternative Medicines: The Knowledge, Attitudes And Practices Of Dietitians In Maine, Jennifer Kristy Lawrance

Electronic Theses and Dissertations

Consumer interest in complementary/alternative medicines (CAM) has increased substantially in the past thirty years. This is due to the growing knowledge of the link between diet and disease, as well as the cost and accessibility of health care. Despite substantial advances in the medical treatment of disease, many people seek patient-directed, nonprescription approaches to prevent and treat disease. In fact, it has been estimated that consumers spend over $ 13 billion each year on CAM. More people are taking ownership of their own health, and have thus turned to nonprescription measures for the prevention and treatment of disease. For the ...


Can Cranberry Supplementation Reduce Risks For Diabetes?, Belinda K. Chambers May 2002

Can Cranberry Supplementation Reduce Risks For Diabetes?, Belinda K. Chambers

Electronic Theses and Dissertations

Diabetes affects approximately 250 million people worldwide and health care costs related to diabetes equal approximately $98 billion each year. Aldose reductase has been shown to contribute to the side effects of diabetes including kidney disease, nerve disease, and retinopathy. Cranberries contain anthocyanins and other flavonoids that have been shown in vitro to inhibit the enzyme aldose reductase and to inhibit protein glycosylation. It is believed that daily cranberry supplementation could reduce side effects of diabetes. Twenty-seven adults with type 2 diabetes were recruited for this 12 week double-blind, placebo-controlled study. Fasting blood analysis was done at weeks 0, 6 ...


Adolescent Girls:Calcium Intake And Sources, Laura Agard May 2002

Adolescent Girls:Calcium Intake And Sources, Laura Agard

Electronic Theses and Dissertations

Calcium is an essential nutrient required for normal growth and development of the skeleton and teeth. Adequate calcium intake is critical during early adolescence to optimize peak bone mass and decrease the risk of osteoporosis later in life. Previous researchers, however, have concluded that adolescent girls consume insufficient calcium to meet the demands of rapid skeletal growth. National surveys conducted prior to 1997 showed that t.he major sources of calcium for adolescent girls were milk and milk products. Shortly after the new Dietary Reference Intakes (DRI's) for calcium were released in 1997, calcium fortified foods became more readily ...


Validation Of A Sun-Exposure Questionnaire For Adolescent Girls, Jennifer L. Cobb Dec 2001

Validation Of A Sun-Exposure Questionnaire For Adolescent Girls, Jennifer L. Cobb

Electronic Theses and Dissertations

Sunlight is a major contributor to an individual's vitamin D status. Determinants of sun exposure have been used in conjunction with dietary data to study the effect of sunlight on bone health of elderly populations. Sun-exposure questionnaires to assess vitamin D status have not been utilized or tested in populations of children in the United States. This is the first questionnaire, used in accordance with vitamin D research, to be tested against an objective measure of sun exposure and to account for diurnal variation in ultraviolet B (UVB) ray strength. The objective of this study was to develop and ...


Development And Characterization Of Pastas Containing Underutilized Crab Mince, Barbara Lorraine Gillman Aug 2001

Development And Characterization Of Pastas Containing Underutilized Crab Mince, Barbara Lorraine Gillman

Electronic Theses and Dissertations

Almost three and a half million pounds of Atlantic Rock and Jonah crab, having a value of almost $1 million, are landed annually in Maine. These landings generate approximately 2.5 million pounds of post-processing waste each year. The by-product consists mainly of shell, viscera, and unpicked meat. Mechanical separation of crustacean by-product can result in an additional 15-20% food grade minced meat, which can be utilized to produce value-added products for human consumption. One such product that may be enhanced by crab mince is fiesh pasta. Americans are eating more pasta than ever before and eesh pasta consumption is ...


Chemical Characterization Of Wild Maine Cranberries, Dolly Jean Watson Aug 2001

Chemical Characterization Of Wild Maine Cranberries, Dolly Jean Watson

Electronic Theses and Dissertations

This study was conducted to analyze wild Maine cranberries for anthocyanin (ACY), anthocyanidin, organic acid, L-ascorbic acid, and moisture content. Cranberries were analyzed in both the fiesh and fiozen states. Analysis for ACY and anthocyanidin content was performed by High Performance Liquid Chromatography (HPLC) and Capillary Electrophoresis (CE); organic acids by HPLC; and L-ascorbic acid (L-AA) and moisture by AOAC methods for titration and drying, respectively. ACY results showed similar qualitative profiles for all cultivars except one where no detectable ACY were present. Four major peaks and two minor peaks were detected, which have been tentatively identified as the galactosides ...