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Food Science

2005

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Full-Text Articles in Life Sciences

A Sanitation Assessment Of Food Contact Surfaces In Child Care Centers Using Microbiological Analysis And Rapid Sanitation Assays, Catherine Moore Cosby Dec 2005

A Sanitation Assessment Of Food Contact Surfaces In Child Care Centers Using Microbiological Analysis And Rapid Sanitation Assays, Catherine Moore Cosby

Masters Theses

Food contact surfaces are a major concern for food service facilities in controlling the spread of foodborne pathogens. Food service areas within these facilities are considered critical to health, and therefore the microbiological quality of these surfaces within child care center food service areas must be surveyed and assessed. The main objectives of this study were: (1) to gather information as to the environmental microbiological quality of food service surfaces and a non-food contact surface in child care centers, and (2) to evaluate several rapid sanitation assays for determining the sanitation quality of food contact surfaces and to determine if ...


Effect Of Chitosan And Water Soluble Chitosan Coatings On Quality Of Small Fruits, Jason Ki-Myung Noh Dec 2005

Effect Of Chitosan And Water Soluble Chitosan Coatings On Quality Of Small Fruits, Jason Ki-Myung Noh

Masters Theses

Edible coating has been applied on the surface of fresh produce to extend shelf-life by suppressing respiration, transpiration, and microbial growth. The coatings, thus, can help decrease moisture and weight loss, and may offer a protective barrier against bacterial contamination and spoilage. Recent studies have indicated chitosan as an effective coating that extends shelf-life and improves a storability of fruits. The objective of this study was to demonstrate the effectiveness of natural biodegradable chitosan coatings in extending shelf-life and quality of fresh small fruits, such as blueberries and grapes. Fruits were dipped for 30 seconds in 1% chitosan in 1 ...


Proliferative Enteropathy: A Global Enteric Disease Of Pigs Caused By Lawsonia Intracellularis, Jeremy J. Kroll, Michael B. Roof, Lorraine J. Hoffman, James S. Dickson, D.L. Hank Harris Dec 2005

Proliferative Enteropathy: A Global Enteric Disease Of Pigs Caused By Lawsonia Intracellularis, Jeremy J. Kroll, Michael B. Roof, Lorraine J. Hoffman, James S. Dickson, D.L. Hank Harris

Animal Science Publications

Proliferative enteropathy (PE; ileitis) is a common intestinal disease affecting susceptible pigs raised under various management systems around the world. Major developments in the understanding of PE and its causative agent, Lawsonia intracellularis, have occurred that have led to advances in the detection of this disease and methods to control and prevent it. Diagnostic tools that have improved overall detection and early onset of PE in pigs include various serological and molecular-based assays. Histological tests such as immunohistochemistry continue to be the gold standard in confirming Lawsonia-specific lesions in pigs post mortem. Despite extreme difficulties in isolating L. intracellularis ...


Method Of Converting Free Fatty Acids To Fatty Acid Methyl Esters, Earl G. Hammond, Tong Wang Nov 2005

Method Of Converting Free Fatty Acids To Fatty Acid Methyl Esters, Earl G. Hammond, Tong Wang

Iowa State University Patents

A method for converting free fatty acids in acid oil or acid fat into fatty acid methyl esters is disclosed. The method involves adding a small amount of methanol and an acid catalyst to the acid oil or acid fat and subjecting the mixture to conditions that allow the fatty acid methyl esters to form. A lipid phase containing the fatty acid methyl esters and triglycerides can from and be separated from the rest of the reaction mixture. The lipid phase can then be subjected to conditions suitable for converting the triglycerides into fatty acid methyl esters. The method of ...


In Vitro Bile Acid Binding Of Flours From Oat Lines Varying In Percentage And Molecular Weight Distribution Of Β-Glucan, Sedat Sayar, Jean-Luc Jannink, Pamela J. White Nov 2005

In Vitro Bile Acid Binding Of Flours From Oat Lines Varying In Percentage And Molecular Weight Distribution Of Β-Glucan, Sedat Sayar, Jean-Luc Jannink, Pamela J. White

Food Science and Human Nutrition Publications

Two experimental high β-glucan oat (Avena sativa) lines (7.64 and 8.05%) and two traditional lines (4.77 and 5.26% β-glucan) were used to evaluate the effect of β-glucan quantity and molecular weight on bile acid (BA) binding. The oat flour samples were digested by an in vitro system that simulated human digestion. No significant differences among oat type were found in the overall β-glucan, starch, and pentosan digestibilities. Considering the standard, cholestyramine, as 100% bound, the relative BA binding for the oat flour samples on a dry matter basis was in the range of 7.5−14 ...


Curbing Migration Of Talent In Africa: Initiatives For Collaborative Action, Leah C. Keino, Ria Van Wyk, Suzanne Hendrich, Gary Phye, Ann Thompson Nov 2005

Curbing Migration Of Talent In Africa: Initiatives For Collaborative Action, Leah C. Keino, Ria Van Wyk, Suzanne Hendrich, Gary Phye, Ann Thompson

Food Science and Human Nutrition Publications

In an effort to address migration of talent from sub-Saharan Africa, a number of higher education institutions are attempting to strengthen or develop graduate programs in several areas. These institutions see the potential for emerging digital technologies to provide new and exciting opportunities for collaboration with Western institutions. Examples of these institutions include University of Stellenbosch in South Africa and Iowa State University, which collaborated on a needs assessment for collaborative action to build faculty capacity through the development of shared Internet-based courses. This article describes this initiative. (Contains a list of 3 resources.)


Thermal Properties Of Starch From Exotic-By-Adapted Corn (Zea Mays L.) Lines Grown In Four Environments, E. Lenihan, L Pollak, Pamela J. White Nov 2005

Thermal Properties Of Starch From Exotic-By-Adapted Corn (Zea Mays L.) Lines Grown In Four Environments, E. Lenihan, L Pollak, Pamela J. White

Food Science and Human Nutrition Publications

The effect of four growing environments (two at Ames, IA; one at Clinton, IL; and one at Columbia, MO) on the thermal properties of starch from five exotic-by-adapted corn inbred lines (Chis37, Cuba34, Cuba38, Dk8, Dk10) and two control lines (B73 and Mo17) were studied using differential scanning calorimetry (DSC). The variations in thermal properties within environments were similar for the exotic-by-adapted lines and control lines. Missouri was the warmest environment and generally produced starch with the greatest gelatinization onset temperature (ToG), the narrowest range of gelatinization (RG), and the greatest enthalpy of gelatinization (ΔHG). Illinois ...


Metabolism Of Glycitein (7,4-Dihydroxy-6-Methoxy-Isoflavone) By Human Gut Microflora, Andrean L. Simons, Mathieu Renouf, Suzanne Hendrich, Patricia A. Murphy Oct 2005

Metabolism Of Glycitein (7,4-Dihydroxy-6-Methoxy-Isoflavone) By Human Gut Microflora, Andrean L. Simons, Mathieu Renouf, Suzanne Hendrich, Patricia A. Murphy

Food Science and Human Nutrition Publications

Gut microbial disappearance and metabolism of the soy isoflavone glycitein, 7,4‘-dihydroxy-6-methoxyisoflavone, were investigated by incubating glycitein anaerobically with feces from 12 human subjects. The subjects' ages ranged from 24 to 53 years with a body mass index (BMI) of 20.9−25.8 kg/m2 (mean BMI = 24.0 ± 1.1 kg/m2). Glycitein disappearance followed an apparent first-order rate loss. Fecal glycitein disappearance rates for the subjects segregated into three different groups described as high (k = 0.67 ± 0.14/h), moderate (k = 0.34 ± 0.04/h), and low (k = 0.15 ± 0.07/h) glycitein ...


Heat And Mass Transfer During Baking : Product Quality Aspects, H Hadiyanto Et Al Sep 2005

Heat And Mass Transfer During Baking : Product Quality Aspects, H Hadiyanto Et Al

Hadiyanto

Most food product qualities are developed during heating processes. Therefore the internal heating and mass transfer of water are important aspects in food processing. Heating of food products is mostly induced by convection heating. However, the number applications of convective heating in combination with microwave heating are growing. Convection heating only promotes heating on the surface while microwave induce internal heating. This paper focuses on effect of convection heating sources to changes of quality properties in bakery products such as brownness and texture. Heat convection and conduction, and moisture migration due to diffusion and convection are the key to changes ...


Oxalate And Phytate Concentrations In Seeds Of Soybean Cultivars, Harry T. Horner, Teresa Cervantes-Martinez, Rosanne Healy, Manju B. Reddy, Betsy L. Deardorff, Theodore B. Bailey, Ismail Al-Wahsh, Linda K. Massey, Reid G. Palmer Sep 2005

Oxalate And Phytate Concentrations In Seeds Of Soybean Cultivars, Harry T. Horner, Teresa Cervantes-Martinez, Rosanne Healy, Manju B. Reddy, Betsy L. Deardorff, Theodore B. Bailey, Ismail Al-Wahsh, Linda K. Massey, Reid G. Palmer

Food Science and Human Nutrition Publications

This study analyzed soybean seeds from 116 cultivars for total, insoluble, and soluble oxalate (Ox), phytate (InsP6), calcium (Ca), and magnesium (Mg) because of their potential beneficial or harmful effects on human nutrition. These cultivars were divided into four groups (A-D) on the basis of the year and geographic location where they were grown. Oxalate concentration ranged from about 82 to 285 mg/100 g of dry seed. The InsP6 concentration ranged from 0.22 to 2.22 g/100 g of dry seed. There was no correlation between Ox and InsP6 within or among the four groups of cultivars ...


Design And Evaluation Of 16s Rrna-Targeted Peptide Nucleic Acid Probes For Whole-Cell Detection Of Members Of The Genus Listeria, Byron F. Brehm-Stecher, Jens J. Hyldig-Nielsen, Eric A. Johnson Sep 2005

Design And Evaluation Of 16s Rrna-Targeted Peptide Nucleic Acid Probes For Whole-Cell Detection Of Members Of The Genus Listeria, Byron F. Brehm-Stecher, Jens J. Hyldig-Nielsen, Eric A. Johnson

Food Science and Human Nutrition Publications

Six fluorescein-labeled peptide nucleic acid oligomers targeting Listeria-specific sequences on the 16S ribosomal subunit were evaluated for their abilities to hybridize to whole cells by fluorescence in situ hybridization (FISH). Four of these probes yielded weak or no fluorescent signals after hybridization and were not investigated further. The remaining two FISH-compatible probes, LisUn-3 and LisUn-11, were evaluated for their reactivities against 22 Listeria strains and 17 other bacterial strains belonging to 10 closely related genera. Hybridization with BacUni-1, a domain-specific eubacterial probe, was used as a positive control for target accessibility in both Listeria spp. and nontarget cells. RNase ...


Grain Quality Of Brazilian Maize Genotypes As Influenced By Nitrogen Level, Aildson P. Duarte, Stephen C. Mason, David S. Jackson, Jorge De C. Kiehl Aug 2005

Grain Quality Of Brazilian Maize Genotypes As Influenced By Nitrogen Level, Aildson P. Duarte, Stephen C. Mason, David S. Jackson, Jorge De C. Kiehl

Faculty Publications in Food Science and Technology

Maize (Zea mays L.) is an important crop in Brazil, and concerns about grain quality are increasingly important with increasing exports and use of grain for specific end-uses. A wide range of genotypes are grown and N application is required to produce high yields. The objectives of these studies were to: (i) determine N application effects on the kernel hardness and breakage susceptibility of a wide range of Brazilian genotypes ranging from dent to flint kernel types and (ii) determine relationships among kernel hardness and breakage susceptibility tests, yield and N and oil concentration. Three studies were conducted with a ...


Significance Of Cell Surface Charge On Microbial Susceptibility To Chitosan, Laquita Mai Michael Aug 2005

Significance Of Cell Surface Charge On Microbial Susceptibility To Chitosan, Laquita Mai Michael

Masters Theses

A study was conducted to determine the importance of cellular surface charge on susceptibility of yeasts to the natural biopolymer chitosan. The test organisms utilized were Saccharomyces cerevisiae, Candida krusei, and Zygosaccharomyces bailii. Surface charge was determined at various culture ages and under selected environmental conditions. Bovine serum albumin (BSA) was used as a protein standard to ensure an accurate method to measure microbial surface charge. Yeasts cells were grown to the early stationary phase, washed and suspended in potassium chloride with absorbance value (A600nm) of 0.1 to 0.2, and charge was measured using a phase analysis ...


Pressure Canning Hydrated Wheat, Brian Nummer Aug 2005

Pressure Canning Hydrated Wheat, Brian Nummer

All Current Publications

This is a statement regarding the untested canning practices of hydrated wheat berries.


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.


Effects Of Long-Term Storage On Quality Of Retail-Packaged Pinto Beans, C. M. Larson, A. R. Sloan, Lynn V. Ogden, Oscar A. Pike Jul 2005

Effects Of Long-Term Storage On Quality Of Retail-Packaged Pinto Beans, C. M. Larson, A. R. Sloan, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

There is interest in storing low-moisture foods for long periods of time for uses such as personal preparedness, disaster relief efforts and space travel. Pinto beans in restaurant-sized No. 10 cans are available in the retail market, but work is needed to determine the effects of long-term storage on quality. The objective of this research was to investigate the quality of retail-packaged pinto beans held at ambient temperatures up to 32 years. Fifteen samples of pinto beans packaged in No. 10 cans, which were treated to remove oxygen, were obtained from donors. Samples ranged from <1 to 32 years in age. Prior to cooking, pinto bean samples were soaked in water containing varying levels of baking soda to standardize textural attributes.


Sheep Updates 2005 - Part 3, Rob Davidson, David Pethick, C. F. Engelke, B. D. Siebert, K. Gregg, A-D G. Wright, P. E. Vercoe, Robin Jacob, Russell Barnett, Joanne Sneddon, Sandra Brown, G. Rose, C. Kabore, J Dart, Stuart Adams Jul 2005

Sheep Updates 2005 - Part 3, Rob Davidson, David Pethick, C. F. Engelke, B. D. Siebert, K. Gregg, A-D G. Wright, P. E. Vercoe, Robin Jacob, Russell Barnett, Joanne Sneddon, Sandra Brown, G. Rose, C. Kabore, J Dart, Stuart Adams

Sheep Updates

This session covers seven papers from different authors: CUSTOMER 1. Benefits VIAscanR to producers and WAMMCO, Rob Davidson, Supply Development Manager, David Pethick, School of Veterinary and Biomedical Studies, Murdock University. 2. Healthy fats in lamb: how WA lambs compare with others, C. F. Engelke Animal Biology, University of Western Australia, bCSIRO Livestock Industries, Western Australia B.D. Siebert, Department of Animal Science, University of Adelaide, South Australia, K. Gregg, Centre for High-Throughput Agricultural Genetic Analysis, Murdoch University, Western Australia. A-D.G. Wright CSIRO Livestock Industries, Western Australia, P.E Vercoe Animal Biology, University of Western Australia 3. Shelf life ...


Update On Utilizing Ethanol Processing Residues In Food Products, Kurt A. Rosentrater, Padmanaban Krishnan Jul 2005

Update On Utilizing Ethanol Processing Residues In Food Products, Kurt A. Rosentrater, Padmanaban Krishnan

Kurt A. Rosentrater

The production of corn-based ethanol in the U.S. is dramatically increasing, and consequently so is the quantity of byproduct materials generated from this processing sector. These coproduct streams are currently solely utilized as livestock feed, which is a route that provides ethanol processors with a substantial revenue source and significantly increases the profitability of the production process. With the construction and operation of many new plants in recent years, these residuals do, however, have much potential for value-added processing and utilization in the human food sector as well. This option holds promise of economic benefit for corn processors, especially ...


Effects Of Long-Term Storage On Quality Of Wheat Packaged In No. 10 Cans, R. Green, Devin J. Rose, Lynn V. Ogden, Oscar A. Pike Jul 2005

Effects Of Long-Term Storage On Quality Of Wheat Packaged In No. 10 Cans, R. Green, Devin J. Rose, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

There is interest in the long-term storage of low-moisture foods for applications such as space flight, disaster relief, and personal preparedness. Wheat packaged in restaurant-size No. 10 cans has been available in the retail market for decades. However, the quality of such wheat held in long-term storage is not well characterized. The purpose of this research was to examine the effects of long-term storage on the quality of wheat packaged in No. 10 cans and held at ambient temperatures up to 32 years. Twenty samples of hard red wheat (including 4 duplicates) packaged in No. 10 cans were obtained from ...


Oxalate And Phytate Of Soy Foods, Ismail A. Al-Wahsh, Harry T. Horner, Reid G. Palmer, Manju B. Reddy, Linda K. Massey Jun 2005

Oxalate And Phytate Of Soy Foods, Ismail A. Al-Wahsh, Harry T. Horner, Reid G. Palmer, Manju B. Reddy, Linda K. Massey

Food Science and Human Nutrition Publications

The consumption of foods made from soybeans is increasing because of their desirable nutritional value. However, some soy foods contain high concentrations of oxalate and/or phytate. Oxalate is a component of calcium oxalate kidney stones, whereas phytate is an inhibitor of calcium kidney stone formation. Thirty tested commercial soy foods exhibited ranges of 0.02−2.06 mg oxalate/g and 0.80−18.79 mg phytate/g. Commercial soy foods contained 2−58 mg of total oxalate per serving and 76−528 mg phytate per serving. Eighteen of 19 tofu brands and two soymilk brands contained less than ...


Evaluation Of Antioxidant Effectiveness And Sensory Attributes Of Chinese 5-Spice Ingredients In Cooked Ground Beef, Saumya Dwivedi May 2005

Evaluation Of Antioxidant Effectiveness And Sensory Attributes Of Chinese 5-Spice Ingredients In Cooked Ground Beef, Saumya Dwivedi

All Graduate Theses and Dissertations

This study determined antioxidant and sensory effects of cinnamon, cloves, fennel, pepper, and star anise (Chinese 5-spice ingredients) in cooked ground beef. In experiment 1, thiobarbituric acid (TBA) values of cooked samples were measured during refrigerated storage. In experiment 2, trained panelists evaluated cooked samples for rancid, beef, and spice flavor intensity. Total aerobic plate counts were also measured.

Mean TBA values were high (3.4) for control samples. In previous studies, TBA values >1.0 were associated with unacceptably rancid cooked meats. At the lowest spice level of 0.1% of meat weight, all spices except pepper had lower ...


Diabetes, Cognitive Decline, And Alzheimer's Disease: The Cache County Study On Memory, Health, And Aging, Gene Charoonruk May 2005

Diabetes, Cognitive Decline, And Alzheimer's Disease: The Cache County Study On Memory, Health, And Aging, Gene Charoonruk

All Graduate Theses and Dissertations

Studies have reported mixed results for people with or without diabetes with cognitive decline or Alzheimer's disease (AD). Cognitive decline and AD among people with diabetes will be the focus of much discussion since results have been controversial.

The study examined whether diabetes is associated with cognitive decline and whether it is an independent risk factor for the development of AD among elderly residents of Cache County, Utah.

Results revealed an association between diabetes and a lower average Modified Mini Mental State Examination (3MS) score of nearly a point lower at baseline. Results also showed an association between diabetes ...


Nutrition Education For Parents Of Children With Cystic Fibrosis : Assessment Of Needs And Strategies For Improved Knowledge And Confidence In Self Care, Catherine M. Mcdonald May 2005

Nutrition Education For Parents Of Children With Cystic Fibrosis : Assessment Of Needs And Strategies For Improved Knowledge And Confidence In Self Care, Catherine M. Mcdonald

All Graduate Theses and Dissertations

Suboptimal growth and nutritional status are problematic for children with cystic fibrosis (CF). Optimal nutrition predicts better lung function and longevity. Daily nutrition therapy for children with CF requires adequate food resources, knowledge of appropriate nutrition and behavior management skills, and confidence in one's ability to correctly apply the necessary skills. The Mountain West Cystic Fibrosis Consortium Questionnaire (MWCFC-Q) was designed as an educational needs assessment for parents of children with CF. The goal was to identify areas of concern that could be targeted for educational intervention to ultimately improve children's growth and nutritional status.

Data analyzed from ...


Development And Evaluation Of An Electronic Food Frequency Questionnaire For Estimating Calcium Intake Among Multiethnic Youth, Siew Sun Wong May 2005

Development And Evaluation Of An Electronic Food Frequency Questionnaire For Estimating Calcium Intake Among Multiethnic Youth, Siew Sun Wong

All Graduate Theses and Dissertations

Youth consuming inadequate amounts of calcium are at risk of developing osteoporosis later in life. To better assess dietary calcium intakes and the efficacy of dietary intervention strategies to improve bone health among youth, it is important to develop calcium intake assessment tools that are reliable, accurate, and interactively engaging for a new generation of youth who have a higher computer literacy and are more technologically knowledgeable than preceding generations. The goal of this dissertation was to develop and evaluate an electronic food frequency questionnaire ( eFFQ) that measures calcium intake among 11-to 18-year-old Asian, Hispanic, and White youth. Enhancing this ...


Hunger And Satiety In Recovering Eating Disorder Patients, Jenelle T. West May 2005

Hunger And Satiety In Recovering Eating Disorder Patients, Jenelle T. West

All Graduate Plan B and other Reports

Desire to eat, hunger, feeling of having enough to eat, and fullness were measured in 11 eating disorder patients in treatment for less than two months, 7 eating disorder patients in treatment for more than two months, and 11 controls. The experimental group was female patients with a DSM-IV diagnosis of Anorexia Nervosa, Bulimia Nervosa, or eating disorder not-otherwise-specified. The experimental and control groups ate a test meal two hours after a preload. The groups answered four questions about desire to eat, hunger, feeling of having enough to eat, and fullness, before they ate, halfway through their meal, immediately upon ...


Effect Of Fat And Casein Particles In Milk On The Scattering Of Elliptically Polarized Light, Czarena L. Crofcheck, Jeremie Wade, Janakiraman N. Swamy, Mustafa M. Aslan, M. Pinar Mengüç May 2005

Effect Of Fat And Casein Particles In Milk On The Scattering Of Elliptically Polarized Light, Czarena L. Crofcheck, Jeremie Wade, Janakiraman N. Swamy, Mustafa M. Aslan, M. Pinar Mengüç

Biosystems and Agricultural Engineering Faculty Publications

In this article, we present an experimental approach to determine the milk fat content using scattered light intensity profiles. The elements of the scattering (Mueller) matrix have been shown to provide valuable information about variation of the optical properties of scattering particles. The scattering behavior of fat and casein in terms of the scattering matrix elements was experimentally determined for milk with varying fat levels ranging from 0.05 wt% (skim) to 3.20 wt% (whole). Three of the scattering Mueller matrix elements, specifically S11, S12/S11, and S33/S11, were found to be sensitive ...


Nutritional Status And Growth In Infants With Cystic Fibrosis At Diagnosis And At Age Two Years And Six Years, Marianne Rich May 2005

Nutritional Status And Growth In Infants With Cystic Fibrosis At Diagnosis And At Age Two Years And Six Years, Marianne Rich

All Graduate Theses and Dissertations

PURPOSE: A retrospective chart review was conducted to determine if nutritional source of feeding and/or infant age at diagnosis of cystic fibrosis had any effect on nutritional status and subsequent growth accretion. Additionally, an attempt was made to identify predictors for poor growth in patients with undiagnosed cystic fibrosis.

METHODS: Data was collected from medical and clinic charts at Primary Children's Medical Center (PCMC), Salt Lake City, Utah, for subjects born between January 1, 1995 and December 31, 200 I, who were diagnosed with cystic fibrosis before 1 year of age. Thirty-one subjects met inclusion parameters. These subjects ...


Weight Maintenance: Determinants Of Success, Cynthia Mitchell May 2005

Weight Maintenance: Determinants Of Success, Cynthia Mitchell

All Graduate Theses and Dissertations

This literature review was a selective examination of current obesity and physical activity research and opinions. Its purpose was more to evoke thought and discussion regarding the United States' obesity epidemic, rather than serve as an exhaustive account of prospective causes and solutions. Obesity and physical inactivity are major preventable health problems in the United States, but despite overwhelming evidence regarding the benefits of a healthy weight and regular physical activity, adult, childhood and adolescent obesity rates continue to escalate, creating significant health, medical and economic consequences.

While obesity rates soar, a small population percentage has proven successful in long-term ...


Prevention Of Childhood Obesity Among Low-Income Preschool-Aged Children, Ann Romero May 2005

Prevention Of Childhood Obesity Among Low-Income Preschool-Aged Children, Ann Romero

All Graduate Theses and Dissertations

To determine the effects of a targeted curriculum and dual program involvement on childhood overweight status among low-income preschool children, a nutrition curriculum was developed. Three Special Supplemental Food Program for Women Infants and Children (WIC) clinics participated in the study: the control clinic, a clinic which received the targeted curriculum, and a third clinic which received the targeted curriculum and referred participant families to the Expanded Food and Nutrition lll Education Program (EFNEP). Participants were followed for six months. Data collected included anthropometrics, dietary intake, and parental behaviors.

Results showed a decrease in body-mass index percentile, slight improvements in ...