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A Theoretical Model Of Underground Dipole Antennas For Communications In Internet Of Underground Things, Abdul Salam, Mehmet C. Vuran, Xin Dong, Christos Argyropoulos, Suat Irmak Feb 2019

A Theoretical Model Of Underground Dipole Antennas For Communications In Internet Of Underground Things, Abdul Salam, Mehmet C. Vuran, Xin Dong, Christos Argyropoulos, Suat Irmak

Faculty Publications

The realization of Internet of Underground Things (IOUT) relies on the establishment of reliable communication links, where the antenna becomes a major design component due to the significant impacts of soil. In this paper, a theoretical model is developed to capture the impacts of change of soil moisture on the return loss, resonant frequency, and bandwidth of a buried dipole antenna. Experiments are conducted in silty clay loam, sandy, and silt loam soil, to characterize the effects of soil, in an indoor testbed and field testbeds. It is shown that at subsurface burial depths (0.1-0.4m), change in soil ...


The Type Of Dietary Fat In An Isocaloric Breakfast Meal Does Not Modify Postprandial Metabolism In Overweight/Obese Pregnant Women, Mary Lesser, Kasuen Mauldin, Lisa Sawrey-Kubicek, Virginia Gildengorin, Janet King Feb 2019

The Type Of Dietary Fat In An Isocaloric Breakfast Meal Does Not Modify Postprandial Metabolism In Overweight/Obese Pregnant Women, Mary Lesser, Kasuen Mauldin, Lisa Sawrey-Kubicek, Virginia Gildengorin, Janet King

Faculty Publications

Almonds provide a satiating, healthy source of fat and fiber. The postprandial metabolic and satiety response to 2 ounces of nuts or dairy was assessed in 18 overweight/obese women during late pregnancy. Serum glucose, triglycerides, insulin, c-peptide, leptin, ghrelin, and lipoprotein particles were measured prior to and during a 5-h postprandial period following the consumption of an isocaloric breakfast meal with equivalent amounts of fat from either nuts or dairy on two separate mornings. Satiety was assessed by visual analogue scale (VAS) questionnaires and ad libitum food intake at the end of the study. At 33 weeks gestation, the ...


Three Popular Medicinal Mushroom Supplements: A Review Of Human Clinical Trials, Megan Frost Jan 2016

Three Popular Medicinal Mushroom Supplements: A Review Of Human Clinical Trials, Megan Frost

Faculty Publications

There are many mushroom supplements on the market claiming a variety of health benefits, and it is difficult to discern which of these claims is backed by reliable research. Most of the existing research is conducted using either human cells or animal models rather than human participants. Without being tested directly on humans, this research has limited application. A review of the literature reveals a relatively small number of studies have been conducted using human patients and those that do exist vary widely in study design and quality. This article brings together all the existing studies that involve human participants ...


High Throughput Genomic Sequencing Of Bioaerosols In Broiler Chicken Production Facilities, Kate M. O’Brien, Michael S. Chimenti, Morgan Farnell, Tom Tabler, Thomas Bair, Joey Lynn Bray, Matthew W. Nonnenmann Jan 2016

High Throughput Genomic Sequencing Of Bioaerosols In Broiler Chicken Production Facilities, Kate M. O’Brien, Michael S. Chimenti, Morgan Farnell, Tom Tabler, Thomas Bair, Joey Lynn Bray, Matthew W. Nonnenmann

Faculty Publications

Chronic inhalation exposure to agricultural dust promotes the development of chronic respiratory diseases among poultry workers. Poultry dust is composed of dander, chicken feed, litter bedding and microbes. However, the microbial composition and abundance has not been fully elucidated. Genomic DNA was extracted from settled dust and personal inhalable dust collected while performing litter sampling or mortality collection tasks. DNA libraries were sequenced using a paired-end sequencing-by-synthesis approach on an Illumina HiSeq 2500. Sequencing data showed that poultry dust is predominantly composed of bacteria (64–67%) with a small quantity of avian, human and feed DNA (< 2% of total reads). Staphylococcus sp. AL1, Salinicoccus carnicancri and Lactobacillus crispatus were the most abundant bacterial species in personal exposure samples of inhalable dust. Settled dust had a moderate relative abundance of these species as well as Staphylococcus lentus and Lactobacillus salivarius. There was a statistical difference between the microbial composition of aerosolized and settled dust. Unlike settled dust composition, aerosolized dust composition had little variance between samples. These data provide an extensive analysis of the microbial composition and relative abundance in personal inhalable poultry dust and settled poultry dust.


Prokaryotic Diversity In The Rhizosphere Of Organic, Intensive, And Transitional Coffee Farms In Brazil, Adam Caldwell, Livia Silva, Cynthia Da Silva, Cleber Ouverney Jun 2015

Prokaryotic Diversity In The Rhizosphere Of Organic, Intensive, And Transitional Coffee Farms In Brazil, Adam Caldwell, Livia Silva, Cynthia Da Silva, Cleber Ouverney

Faculty Publications

Despite a continuous rise in consumption of coffee over the past 60 years and recent studies showing positive benefits linked to human health, intensive coffee farming practices have been associated with environmental damage, risks to human health, and reductions in biodiversity. In contrast, organic farming has become an increasingly popular alternative, with both environmental and health benefits. This study aimed to characterize and determine the differences in the prokaryotic soil microbiology of three Brazilian coffee farms: one practicing intensive farming, one practicing organic farming, and one undergoing a transition from intensive to organic practices. Soil samples were collected from 20 ...


Food Intake Patterns And Plate Waste Among Community Meal Center Guests Show Room For Improvement, Marjorie Freedman, Catherine Bartoli Jan 2013

Food Intake Patterns And Plate Waste Among Community Meal Center Guests Show Room For Improvement, Marjorie Freedman, Catherine Bartoli

Faculty Publications

Food insecure individuals often consume nutritionally inadequate diets. Using a weighted plate waste analysis, we examined whether adult guests of 2 independently operated meal centers were served and consumed Food and Drug Administration–recommended serving sizes (reference amount customarily consumed; RACC) of protein, starch, fruit, vegetables, and bread for the dinner meal. In both centers, guests were served and consumed more than 100% of RACC for protein. Regardless of amount served and independent of whether guests took seconds, consumption of fruit and vegetables was less than RACC. Larger servings of vegetables, but not of protein or starch, resulted in more ...


Nature's Perfect Food, Geoffrey D. Reynolds Aug 2012

Nature's Perfect Food, Geoffrey D. Reynolds

Faculty Publications

Nature's Perfect Food is an article that describes the history of local beekeeper Jack Hartman and the benefit of local honey bees to agriculture and honey consumers.


Point-Of-Purchase Nutrition Information Influences Food-Purchasing Behaviors Of College Students: A Pilot Study, Marjorie Freedman, Rachel Conners May 2011

Point-Of-Purchase Nutrition Information Influences Food-Purchasing Behaviors Of College Students: A Pilot Study, Marjorie Freedman, Rachel Conners

Faculty Publications

The goal of point-of-purchase (POP) nutrition information is to help consumers make informed, healthful choices. Despite limited evaluation, these population-based approaches are being advocated to replace traditional, more expensive, individual behavior-change strategies. Few studies have examined the effect of POP information on buying patterns of college students, a group with high obesity rates and poor eating habits. This quasi-experimental pilot project sought to determine whether the “Eat Smart” POP program affected food-purchasing habits of multiethnic college students shopping at an on-campus convenience store. Baseline sales data of foods in the cereal, soup, cracker, and bread categories were collected for 6 ...


White Potatoes, Including French Fries, Contribute Shortfall Nutrients To Children's And Adolescents' Diets, Marjorie Freedman, Debra Keast Apr 2011

White Potatoes, Including French Fries, Contribute Shortfall Nutrients To Children's And Adolescents' Diets, Marjorie Freedman, Debra Keast

Faculty Publications

To test the hypothesis that white potatoes (WP), oven-baked fries (OBF), and french fries (FF) contribute important nutrients within energy needs to children's and adolescents' diets, secondary analysis of 24-hour dietary recall data from the National Health and Nutrition Examination Survey 2003-2006 was conducted. Potato content of survey foods was determined using US Department of Agriculture recipe databases (Standard Reference (SR)-Link files). Nutrient content of potatoes was determined by linking SR codes to US Department of Agriculture food composition data. Daily nutrient intakes from potatoes were determined by applying the composition database to respondent's recall data. Sample-weighted ...


Point-Of-Selection Nutrition Information Influences Choice Of Portion Size In An All-You-Can-Eat University Dining Hall, Marjorie Freedman Jan 2011

Point-Of-Selection Nutrition Information Influences Choice Of Portion Size In An All-You-Can-Eat University Dining Hall, Marjorie Freedman

Faculty Publications

There is limited information about point-of-selection nutrition information on food choices in all-you-can-eat university dining halls, where food cost is controlled. This pilot study examined effects of point-of-selection nutrition information (pictures of different portion sizes with corresponding nutrition information) on students' choice of French fries and salad dressing and portion size of French fries. Point-of-selection nutrition information significantly decreased percentage consuming “large” portions of French fries (p < 0.05) but had a limited effect on salad dressing choice. Surveys indicated that >99% of respondents (n = 359) recalled point-of-selection nutrition information; more females used point-of-selection nutrition information to determine portion size. Additional studies are needed to support these promising results.


Freshman Orientation Sessions Can Teach Incoming Students About Healthful Lifestyles, Marjorie Freedman, Jennifer Waldrop Jan 2011

Freshman Orientation Sessions Can Teach Incoming Students About Healthful Lifestyles, Marjorie Freedman, Jennifer Waldrop

Faculty Publications

Currently, 32% of college students are overweight or obese (body mass index ≥ 25),which is likely because many adolescents enter college with an elevated body mass index. Further, the transition from high school to college is associated with weight gain.On their own for the first time, freshmen have greater independence in all aspects of their lives. Increased independence, in turn, often results in changes in types of food and beverages consumed, and in overall eating and exercise patterns—changes that often affect weight gain. Although the popular media continues to perpetuate the “Freshman 15” myth, a recent meta-analysis reported ...


Feasibility Of Re-Using Pete Soda Bottles To Exclude Oxygen During Storage Of Low Moisture Foods, Sarah Broderick, Michelle A. Lloyd, Lynn V. Ogden, Oscar A. Pike Oct 2010

Feasibility Of Re-Using Pete Soda Bottles To Exclude Oxygen During Storage Of Low Moisture Foods, Sarah Broderick, Michelle A. Lloyd, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

Many consumers are beginning to store grain on their own creating a need for easy disinfestation methods that can be accomplished in the home. Oxygen deprivation has proven to be an effective method for grain disinfestation when kept below 1% for 12 days. Re-using PETE soda bottles is an easy way many consumers can store their grains. The purpose of this study was to determine if using oxygen absorber packets in used PETE soda bottles will keep the oxygen percent low enough to disinfest the grain stored in them. Experiments were carried out to determine how long oxygen absorber packets ...


Can Grain Be Disinfested In 5-Gal Hdpe Buckets Containing Oxygen Absorber Packets?, Lynn V. Ogden, C. Griffin Oct 2010

Can Grain Be Disinfested In 5-Gal Hdpe Buckets Containing Oxygen Absorber Packets?, Lynn V. Ogden, C. Griffin

Faculty Publications

Effective methods of grain disinfestation include freezing, the use of carbon dioxide gas, and the use of pesticides. Oxygen deprivation has also been shown to be an effective method of disinfestation when the oxygen content is held below 1% for at least 12 days (d). High Density Polyethylene (HDPE) 5 gallon (gal) buckets have become a popular and convenient storage container for dry foods such as wheat, rice and beans. Oxygen absorber packets are an effective way to remove the oxygen in high-barrier sealed containers to prolong the life of many of these foods. It is hypothesized that sealed HDPE ...


A “Healthy Pizza Kitchen” Nutrition Education Program At A Children's Health Museum, Marjorie Freedman Sep 2010

A “Healthy Pizza Kitchen” Nutrition Education Program At A Children's Health Museum, Marjorie Freedman

Faculty Publications

For nutrition education to be successful in changing behavior, schools, families, and communities must participate in or provide a variety of diverse, creative, accessible, and culturally appropriate programs. One venue for provision of nutrition education is a health and science education center that has exhibits and special programs not found in an average school. Establishing relationships with these organizations could greatly enhance a school health curriculum.1 Although nutrition information, displays, and programming are often found in these centers, studies examining whether provision of nutrition education in these venues increases knowledge or changes behavior are lacking. The purpose of this ...


Quantification Of Aflatoxin B1 In Ready-To-Use Food Thickeners In South-East Geo-Political Zone In Nigeria, G. I. Okwu, Premila N. Achar, Santosh K. Sharma Aug 2010

Quantification Of Aflatoxin B1 In Ready-To-Use Food Thickeners In South-East Geo-Political Zone In Nigeria, G. I. Okwu, Premila N. Achar, Santosh K. Sharma

Faculty Publications

A total of 150 ready to use food thickeners were randomly collected from various markets in both urban and rural settings. Four of the samples tested Achi (Brachystegia eurycoma), Akpalata (Afzelia africana), Ofor (Detarium microcarpum), and Ukpo (Mucuna flagellipes) were contaminated with fungal flora. The most common and prevalent fungi observed on incubated powdered form of food thickeners on media, were the Aspergillus group namely Aspergillus flavus, Aspergillus parasiticus and Aspergillus niger. Pure isolates of A. flavus and A. parasiticus from various food thickeners from open markets in Nigeria were screened for their potential to produce aflatoxin B-1 (AFB(1 ...


Impact Of After-School Nutrition Workshops In A Public Library Setting, Marjorie Freedman, Audrey Nickell May 2010

Impact Of After-School Nutrition Workshops In A Public Library Setting, Marjorie Freedman, Audrey Nickell

Faculty Publications

Objective: To determine if after-school nutrition workshops conducted in public libraries were related to lasting changes in food choice.Methods: “Snack Smart” workshops, based on Social Cognitive Theory, were conducted in 8 branch libraries (49 ethnically diverse children, ages 9 to 14) to assess changes in consumption of targeted food items by pretest, posttest, and follow-up food frequency questionnaires. Results were analyzed using the Friedman test for repeated measures and Wilcoxon signed rank test.Results: Intake of milk, vegetables, and water significantly increased at 3-week posttest (P < .05), but only water intake showed a significant change from pretest to follow-up 3 months later.Conclusions and Implications: This low-intensity program did not produce lasting behavior change, as measured by changes in food frequency at 3 months post- intervention. The study supports the need to critically evaluate out-of-school nutrition programs for lasting impact.


School Health Fairs Show Potential To Improve Short-Term Learning, Marjorie Freedman Mar 2010

School Health Fairs Show Potential To Improve Short-Term Learning, Marjorie Freedman

Faculty Publications

School-based health fairs, that include a variety of informational and/or “fun” booths, are examples of Level 1 interventions designed to build awareness of a health or nutritional topic or problem.1 Designing, implementing, and evaluating a health fair requires considerable resources. Yet recent examination of their efficacy in increasing knowledge is limited.2, 3 and 4 No research has been conducted on preadolescents, a group whose patterns of behavior and food choices may affect their current and future health status. Currently, almost one third of children and adolescents aged 2 to 19 are overweight or obese.5 Less than ...


Sequence Analysis Of Leuconostoc Mesenteroides Bacteriophage Φ1-A4 Isolated From An Industrial Vegetable Fermentation, Jean Lu, Eric Altermann, Frederick Breidt, Sergei Kozyavkin Mar 2010

Sequence Analysis Of Leuconostoc Mesenteroides Bacteriophage Φ1-A4 Isolated From An Industrial Vegetable Fermentation, Jean Lu, Eric Altermann, Frederick Breidt, Sergei Kozyavkin

Faculty Publications

Vegetable fermentations rely on the proper succession of a variety of lactic acid bacteria (LAB) including Leuconostoc mesenteroides. L. mesenteroides initiates the fermentation, producing lactic and acetic acids, CO2, and many flavor compounds. As the fermentation proceeds, L. mesenteroides dies off and other LAB complete the fermentation. Phage infecting L. mesenteroides may significantly influence the die-off of L. mesenteroides. However, no L. mesenteroides phages have been previously sequenced and genetically characterized. Knowledge of more phage genome sequences may provide new insights into phage genomics and phage-host interactions. We have determined the complete genome sequence of L. mesenteroides phage (phi)1-A4 ...


Early Childhood Feeding: Assessing Knowledge, Attitude, And Practices Of Multi-Ethnic Child-Care Providers, Marjorie Freedman, Karina Alvarez Mar 2010

Early Childhood Feeding: Assessing Knowledge, Attitude, And Practices Of Multi-Ethnic Child-Care Providers, Marjorie Freedman, Karina Alvarez

Faculty Publications

Early childhood is a critical period for shaping and influencing feeding and lifestyle behaviors that have implications for future weight and health. With more women in the workforce, families have become reliant on child care. Thus, the child-feeding relationship has become a shared responsibility between the parent and child-care provider. Little is known about the impact of child-care providers on development of early childhood feeding behaviors and subsequent risk for obesity, especially in the Hispanic ethnic group. This research examined child-feeding attitudes, practices, and knowledge of multi-ethnic home-based and center-based child-care providers. Questionnaires were completed by a convenience sample of ...


Implementing A Solid Waste Management Diversion Program In A Conventional Cook–Serve Hospital System: A Feasibility Study, Marjorie Freedman, Irene Franklin Jan 2010

Implementing A Solid Waste Management Diversion Program In A Conventional Cook–Serve Hospital System: A Feasibility Study, Marjorie Freedman, Irene Franklin

Faculty Publications

Americans generate over 250 million tons of municipal solid waste (trash) each year, with institutional facilities such as hospitals accounting for up to 45% of this waste. Solid waste diversion, through recycling and composting, decreases the waste sent to landfills. The objective of this feasibility study was to implement an integrated solid waste diversion program at a conventional cook–serve kitchen for a 250-bed hospital. The waste diversion program resulted in 1390 pounds of organic matter and recycling being diverted from landfills over 5 days. It is estimated that the continuing program will reduce landfill waste by 51 tons annually.


Development, Evaluation, And Validation Of Environmental Assessment Tools To Evaluate The College Nutrition Environment, Marjorie Freedman Jan 2010

Development, Evaluation, And Validation Of Environmental Assessment Tools To Evaluate The College Nutrition Environment, Marjorie Freedman

Faculty Publications

Objective: To develop, evaluate, and validate 2 nutrition environment assessment tools (surveys), for specific use in combating overweight on college/university campuses.Participants and Methods: Invitations to complete surveys were e-mailed to food service and health center directors at 47 universities, Winter 2008. Overall response rate was 48%. Responses from the 39 individuals who completed tool evaluations at the end of each survey were analyzed. Follow-up interviews and site visits performed through Summer 2008 validated responses. Results: The majority of respondents (64%) indicated tools were effective at assessing their nutrition environments; 78% believed these types of assessment tools to be ...


Obesity And Food Choices Among Faculty And Staff At A Large Urban University, Marjorie Freedman, Rebecca Rubinstein Jan 2010

Obesity And Food Choices Among Faculty And Staff At A Large Urban University, Marjorie Freedman, Rebecca Rubinstein

Faculty Publications

Objective: In order to address increasing health care costs associated with obesity, this study sought to determine prevalence of overweight and obesity and examine eating behaviors, food choices, health beliefs, and attitudes of university employees. Participants and Methods: An online survey was distributed to > 3,800 faculty and staff at a large public metropolitan university in Winter 2008. Results: Almost half (48%) of 806 respondents were classified as overweight or obese. Compared to those with normal weights, overweight and obese respondents consumed fewer fruits and vegetables (p < .05), were less confident in making healthful food choices (p < .001), and were more influenced by food choices available in on-campus dining facilities (p < .05). Conclusions: Obesity among university employees warrants attention. Because these employees have less self-efficacy and consume less healthful diets than their normal weight colleagues, universities need to improve on-campus access to healthful foods.


Optimization Of A Convective Air Flow Solar Food Dryer, Jonathan K. Russon, Michael L. Dunn, Frost M. Steele Jan 2009

Optimization Of A Convective Air Flow Solar Food Dryer, Jonathan K. Russon, Michael L. Dunn, Frost M. Steele

Faculty Publications

A solar food dryer, previously developed for personal and small community use, was the object of this optimization study. Based on previous research of convective solar food dehydrators, several dryer parameters were identified for this study. Chimney height and dryer product load were two factors tested in a central composite experimental design. Dryer product load was found to produce a maximum efficiency of the dryer when fifteen product-filled trays were inserted in the dryer. Maximum efficiency was observed at the maximum chimney height tested. Post-optimization configuration compared with pre-optimization configuration resulted in a 40% increase in final dry product production ...


Infant-Feeding Practices Of Low-Income Vietnamese American Women, Yashmi Mistry, Marjorie Freedman, Kathleen Sweeney, Clarie Hollenbeck Nov 2008

Infant-Feeding Practices Of Low-Income Vietnamese American Women, Yashmi Mistry, Marjorie Freedman, Kathleen Sweeney, Clarie Hollenbeck

Faculty Publications

Healthy People 2010 breastfeeding goals include 50% exclusive breastfeeding at 6 months. In California, US, Santa Clara County Women, Infants, and Children (SCCWIC) data indicated Asian participants had low (5.6%) 6-month breastfeeding rates. To examine infant-feeding practices, Vietnamese breastfeeding peer counselors surveyed 133 Vietnamese SCCWIC participants (≥ 18 years old, nonpregnant, < 28 months postpartum) using a structured questionnaire regarding intentions, attitudes, and subjective norms toward breastfeeding. Results indicated that 75% initiated breastfeeding in the hospital (33% exclusively, 42% partially), and 25% exclusively formula fed. At survey time, 49% had terminated breastfeeding (average duration 4.4 months). Feeding intentions during pregnancy predicted feeding method used (P < .001). Most prenatal advice was from SCCWIC employees, friends, and doctors who supported breastfeeding. Most postnatal advice was from nurses who supported breastfeeding and bottle-feeding equally. Stronger control beliefs, peer counseling, and education were correlated with breastfeeding (P < .001). Improved postdelivery hospital advice may further increase breastfeeding initiation and duration.


Commercial Evaluation Of A Continuous Micronutrient Fortification Process For Nixtamal Tortillas, Michael L. Dunn, Sergio O. Serna-Saldivar, Diana Sanchez-Hernandez, Robert W. Griffin Nov 2008

Commercial Evaluation Of A Continuous Micronutrient Fortification Process For Nixtamal Tortillas, Michael L. Dunn, Sergio O. Serna-Saldivar, Diana Sanchez-Hernandez, Robert W. Griffin

Faculty Publications

The corn tortilla plays an integral role in the Mexican diet and is an ideal vehicle for micronutrient fortification. Approximately 60% of corn tortillas in Mexico are produced from nixtamal, with the remainder prepared from masa flour. A process for continuous fortification of nixtamal tortillas was evaluated in two commercial mills in Mexico. A commercial powder dosifier was used to add micronutrient premix containing iron, zinc, folic acid, niacin, riboflavin, and thiamin to nixtamal (1 g/kg) as it was milled. After training and preliminary sampling, mills produced fortified tortillas unassisted for four weeks. Masa flow rates over a four-day ...


Effect Of Iron Source On Color And Appearance Of Micronutrient-Fortified Corn Flour Tortillas, A. T. Richins, K. E. Burton, Heather F. Pahulu, Laura K. Jefferies, Michael L. Dunn Jul 2008

Effect Of Iron Source On Color And Appearance Of Micronutrient-Fortified Corn Flour Tortillas, A. T. Richins, K. E. Burton, Heather F. Pahulu, Laura K. Jefferies, Michael L. Dunn

Faculty Publications

Iron deficiency anemia is a widespread occurrence. Consequently, iron is commonly added in cereal fortification programs. However, many iron sources cause undesirable sensory changes, especially color changes, in the food being fortified. This study evaluated the effect of different iron sources on CIE L*a*b* color values and sensory color perception in fortified corn tortillas. Corn masa flour was fortified with micronutrient premix containing vitamins, zinc, and one of eight iron compounds. Iron sources included ferrous fumarate (F), ferrous sulfate (S), ferric orthophosphate (OP), ferrous lactate (L), ferrous gluconate (G), ferric pyrophosphate (PP), sodium iron (III)-EDTA, and A-131 ...


Enhanced Lipid Stability In Whole Wheat Flour By Lipase Inactivation And Antioxidant Retention, Devin J. Rose, Lynn V. Ogden, Michael L. Dunn, Oscar A. Pike Mar 2008

Enhanced Lipid Stability In Whole Wheat Flour By Lipase Inactivation And Antioxidant Retention, Devin J. Rose, Lynn V. Ogden, Michael L. Dunn, Oscar A. Pike

Faculty Publications

The purpose of this study was to determine the effectiveness of dry heat, steam, and microwave treatments in decreasing lipase activity, while retaining antioxidant activity, to stabilize whole wheat flour against lipid degradation during storage. Bran was heat-treated in 230-g batches using four levels (exposure times) for each of the three treatment methods. Lipase activity and antioxidant activity were quantified for all treatment combinations. None of the treatments significantly decreased antioxidant activity; the levels determined to be optimal, inasmuch as further heating did not significantly decrease lipase activity, were 25 min of dry heat, 60 sec of microwave (1000W), and ...


Effect Of Micronutrient Fortification On Nutritional And Other Properties Of Nixtamal Tortillas, K. E. Burton, Frost M. Steele, Laura K. Jefferies, Oscar A. Pike, Michael L. Dunn Jan 2008

Effect Of Micronutrient Fortification On Nutritional And Other Properties Of Nixtamal Tortillas, K. E. Burton, Frost M. Steele, Laura K. Jefferies, Oscar A. Pike, Michael L. Dunn

Faculty Publications

Nixtamalization is the process of steeping dried corn in hot water with calcium hydroxide (lime) with subsequent removal of all or most of the pericarp through washing. The resulting product is called nixtamal. Approximately 60% of corn tortillas in Mexico are produced from nixtamal, with the remainder prepared from nixtamalized corn flour. Nixtamal was fortified with micronutrient premix containing iron, zinc, folic acid, niacin, riboflavin, and thiamin. Premix composition followed a proposed Mexican regulation for corn flour fortification, adjusted for moisture. Effects of premix on masa adhesiveness, hardness, and pH, as well as tortilla sensory properties, stretchability, rollability, and color ...


Regional Body Composition In College-Aged Caucasians From Anthropometric Measures, Robert T. Davidson, Cameron B. Ritchie Dec 2007

Regional Body Composition In College-Aged Caucasians From Anthropometric Measures, Robert T. Davidson, Cameron B. Ritchie

Faculty Publications

Quantitating fat and lean tissue in isolated body regions may be helpful or required in obesity and health-outcomes research. However, current methods of regional body composition measurement require specialized, expensive equipment such as that used in computed tomography or dual energy x-ray absorptiometry (DEXA). Simple body size or circumference measurement relationships to body composition have been developed but are limited to whole-body applications. We investigated relationships between body size measurements and regional body composition. Methods Using DEXA technology we determined the fat and lean tissue composition for six regions of the body in predominantly Caucasian, college-aged men (n = 32) and ...


Byu Adds "Zing" To New Carbonated Yogurt Product In Stores Nationwide, Byu News Sep 2007

Byu Adds "Zing" To New Carbonated Yogurt Product In Stores Nationwide, Byu News

Faculty Publications

A BYU professor invented the "zing" in General Mills' new carbonated yogurt product, now available in stores all over the country. Fizzix(TM), an extension of Yoplait's Go-GURT brand that comes in a tube, adds a tangy tingle to the traditional fruity flavor of yogurt that will "fizzify" the tongues of the 8- to 12-year-olds the company is targeting.