Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 8 of 8

Full-Text Articles in Life Sciences

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 ...