Food Science Commons^™

Characterization Of Bioactive Phytochemicals From The Stem Bark Of African Mahogany Khaya Senegalensis (Meliaceae), Huaping Zhang

All Dissertations

ABSTRACT
African mahogany Khaya senegalensis (Desr.) A. Juss (Meliaceae) is a large tree growing mainly in the sub-Saharan savannah forests from Senegal to Uganda. This plant is one of the most popular medicinal meliaceous plants in traditional African remedies, used as a bitter tonic, folk and popular medicine against malaria, fever, mucous diarrhea, and venereal diseases as well as an anthelmintic and a taeniacide remedy. Its extracts and chemical constituents have been the subject of extensive phytochemical and pharmacological investigations since 1960s. Anti-inflammatory, anti-bacterial, anthelmintic, and antiplasmodial activities of plant extracts have been reported. Limonoids with anti-feeding, feeding deterrent and …

Optimization Of Biodiesel Production From Crude Cottonseed Oil And Waste Vegetable Oil:Conventional And Ultrasonic Irradiation Methods, Xiaohu Fan

All Dissertations

Biodiesel, derived from the transesterification of vegetable oils or animal fats with simple alcohols, has attracted more and more attention recently. As a cleaner burning diesel alternative, biodiesel has many attractive features including: biodegradability, nontoxicity, renewability and low emission profiles.
Although cottonseed oil was the first commercial cooking oil in the U.S, it has progressively lost its market share to some vegetable oils that have larger production and less cost. However, regarding the active researches on biodiesel production from vegetable oils, there is a promising prospective for the cottonseed oil as a feedstock for biodiesel production, which may enhance the …

Effect Of Processing And Formulation Conditions On Physicochemical Characteristics Of Food Emulsions, Megan Tippetts

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objective of this research was to systematically study the effect of processing conditions on crystallization behavior and destabilization mechanisms of oil-in-water (o/w) emulsions. The effects of oil content (20 and 40 wt %); crystallization temperature (T_c = 10, 5, 0, -5, -10 °C); homogenization conditions, such as high shear (HS), very low pressure homogenization (VLPH), and high pressure homogenization (HPH); and cooling rate (0.2 and 30 °C/min) on both thermal behavior and destabilization mechanisms were analyzed. Docosahexaenoic acid (DHA) was added to VLPH emulsions and its effect on the physicochemical and oxidative stabilities and flavor was studied.

Emulsions …

Cause And Prevention Of Liver Off-Flavor In Five Beef Chuck Muscles, Ranjeeta Wadhwani

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Liver off-flavor is a sporadic problem that limits the consumer acceptance of several beef chuck muscles, including the infraspinatus (flat iron steak). Residual blood hemoglobin is known to contribute to liver off-flavor development. This study was conducted to evaluate factors affecting development of liver off-flavor after cooking of beef chuck (shoulder) muscles. The study was conducted in three parts.

The objective of part 1 was to determine effects of muscle (infraspinatus, longissimus dorsi, serratus ventralis, supraspinatus, teres major) and processing (with or w/o carcass electrical stimulation) on residual blood hemoglobin content and total pigment content of raw muscle …

Synthesis And Characterization Of Lactose-Amines With Respect To Oil-In-Water Emulsion Stability, Nidhi Garg

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fatty amines (hexadecyl-amine) can be esterified to lactose via Schiff-base formation at temperatures of 60° C. Extending the time of the reaction results in a darker colored product due to the Maillard reaction. Due to the amphiphilic properties of the lactose-amines, the emulsion stabilization characteristics were investigated.

In this study, synthesis of lactose-amines was done at four different heating and cooling cycles from 4 to 24 hours. Lactose-amines processed for 24 hours and 12 hours of constant heating and cooling cycles are named as 24H and 12H, respectively. Lactose-amines 4H and 8H were processed for 4 and 8 hours of …

Mechanisms Of Nutrition Bar Hardening: Effect Of Hydrolyzed Whey Protein And Carbohydrate Source, Shaun P. Adams

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The influence of increasing hydrolyzed protein content on the microstructure and hardness of high protein nutrition bars was investigated to determine the mechanism of hardening during storage. Bars with various hydrolyzed protein levels were manufactured using differing ratios of 0, 25, 50, 75, 100% (wt. /wt.) of partially hydrolyzed whey protein isolate (HWPI) to an intact (non-hydrolyzed) whey protein isolate (WPI) which made up approximately 38% of the total bar composition. High fructose corn syrup (HFCS) (42%) and vegetable shortening (20%) constituted the rest of the ingredients. Accelerated aging was performed by storing bars at 32 ^oC for 36 …

Annette Dupard, Annette Dupard, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Annette Dupard is a native of Vacherie, Louisiana. She is a graduate of Southern University and a retired Food Service Manager for the East Baton Rouge Parish Child Nutrition Programs.

Kris M. Chustz, Kris M. Chustz, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Kris M. Chustz, a native of Baton Rouge, Louisiana, is a recently retired school food service professional, having worked as a Manager, Area Supervisor, and Computer Training Coordinator for the Eastern Baton Rouge Parish.

Emma Jo Williamson, Emma Jo Williamson, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Emma Jo Williamson’s first job after college was in social work before making a career change and teaching Home Economics at Plaquemine High School in Iberville Parish for thirteen years. She then decided to go into school food service. She began her new career as an Assistant Director of the parish for two years before assuming the position of Director. Emma Jo is finally retired after twenty-seven years of serving the children of Iberville Parish.

Mary Davis-Palms, Mary Davis-Palms, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Mary Davis-Palms is an Area Supervisor with the East Baton Rough Parish School Nutrition Programs. A graduate of Louisiana State University, Mary has thirty-four years of service in child nutrition.

Nadine Mann, Nadine Mann, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Louisiana native Dr. Nadine Mann is the Director of Operations for the East Baton Rouge Parish Child Nutrition Programs. Nadine holds Bachelor’s and Master’s degrees from Louisiana State University and a Doctorate from Texas Woman’s University in Foods and Nutrition Institution Administration. She has been with the district for thirty-one years.

Gail Johnson, Gail Johnson, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Gail Johnson was the longtime director of school food service in East Baton Rough Parish, Louisiana. She was also a very active member of the Advisory Committee for the National School Food Service Management Institute/Institute of Child Nutrition.

Mary T. Wroten, Mary T. Wroten, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Mary Wroten, a native of Mississippi, worked in the East Baton Rouge Parish Child Nutrition Programs for twenty years. Among her many accomplishments while there was to greatly improve the procurement procedures for the district. Mary’s legacy will continue in Dietetics when her daughter graduates in the same field in May 2009.

Sylvia Grabert, Sylvia Grabert, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Sylvia Grabert is a retired Food Service Director for Iberia Parish in Louisiana. Before coming to Iberia Parish, Sylvia founded the first school food service program in St. James Parish. She holds degrees in both Education and Dietetics, and taught school for several years before going into school food service.

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 period …

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.

Effects Of Filtration Temperature And Heat Treatment On Composition And Rheological Properties Of Whole Milk Ultrafiltration Retentates, John W. Montella

Master's Theses

ABSTRACT

Effects of Filtration Temperature and Heat Treatment on Composition and Rheological Properties of Whole Milk Ultrafiltration Retentates

John William Montella

For the first part of my thesis, the effects of filtration temperature and heat treatment on the compositional properties of whole milk Ultrafiltration retentate (UF) were studied. Ultrafiltration is primarily run at temperatures in the range of 50-55°C but more and more plants are starting to filter at refrigeration temperatures. In the ultrafiltration of milk, filtration temperature can affect the composition of the retentate by affecting the chemistry of milk components. The application of a pasteurization step can also …

Got Controversy - Milk Does, Margaret Sova Mccabe

Law Faculty Scholarship

This article analyzes ongoing controversy over how to best label rBST-free milk. Recombinant bovine somatotropin is a genetically engineered drug administered by some farmers to their dairy herds to increase milk production. FDA first approved its use in 1994, despite great controversy. The FDA also issued labeling guidelines that allowed voluntary disclosure of rBST-free milk, so long as it carried the disclaimer that no difference could be detected between milk produced with rBST and rBST-free. The controversy continues today as consumers express a preference for rBST-free milk and many rBST-free producers label their milk this way. "Conventional" milk (with rBST) …

The Food Processing Center News, Fall 2008

Department of Food Science and Technology: Public Access Records

CONTENTS:
FDST Students Star at IFT
Membrane Filtration Opportunities for the Food Industry
Food Safety Conference a Shared Success
A Message From Dr. Flores
Dr. Hanna “Most Cited” Author of 10 Years
Alumnus Bob Bidrowski
MS Graduate Carolina Leguizamon
Graduates of the B.S. Program
Graduates of the M.S. Program
Graduates of the Ph.D. Program
UNL AWARDS
Undergraduate Interns in Home Country
Accomplishments
Graduate Student Spotlight: Tim Anderson
New M.S. Students
New Ph.D. Students
From Culture-based Methods to DNA Sequencing of Entire Ecostyems: A Major Shift in the Paradigm of Diagnostic Microbiology
Faculty/Staff
Professor of Mucosal Immunology Joins FDST
Visiting Faculty …

Synthesis And Antimicrobial Evaluation Of Carbohydrate And Polyhydroxylated Non-Carbohydrate Fatty Acid Ester And Ether Derivatives, Aoife Smith, Patricia Nobmann, Gary Henehan, Paula Bourke, Julie Dunne

Articles

A series of fatty acid ester and ether derivatives have been chemically synthesised based on carbohydrate and non-carbohydrate polyhydroxylated scaffolds. The synthesised compounds, along with their corresponding fatty acid monoglyceride antimicrobials, were evaluated for antimicrobial activity against Staphylococcus aureus and Escherichia coli. Of the derivatives synthesised several of the carbohydrate based compounds have antimicrobial efficacy comparable with commercially available antimicrobials. The results suggest that the nature of the carbohydrate core plays a role in the efficacy of carbohydrate fatty acid derivatives as antimicrobials.

Disseminated Leishmania Infantum Infection In Two Sibling Foxhounds Due To Possible Vertical Transmission, Katherine N. Gibson-Corley, Jesse M. Hostetter, Shannon J. Hostetter, Kathleen Mullin, Amanda Ramer-Tait, Paola M. Boggiatto, Christine A. Petersen

Department of Food Science and Technology: Faculty Publications

Two sibling foxhounds born to a Leishmania seropositive bitch were presented after testing seropositive for Leishmania. Leishmania infantum infection was detected via histopathology, culture, and quantitative polymerase chain reaction (q-PCR). This is the first report of natural infection with Leishmania infantum with the possibility for vertical transmission in North America.

Infection disséminée à Leishmania infantum chez deux chiots Fox hound d’une même portée reliée possiblement à une transmission verticale. Deux chiots Fox hound d’une même portée nés d’une mère séropositive à Leishmania ont été présentés après un contrôle sérologique positif. Une infection à Leishmania infantum a été détectée par …

Boiling Water Canning Lemon Or Lime Curd, Brian Nummer

All Current Publications

This publication includes recipe and instructions on canning lemon and lime curd using boiling water method.

454 Applications: Just How Creative Can You Be?

Core for Applied Genomics and Ecology (CAGE)

CONTENTS:
Deep Sequencing and Variant analysis
Microbial Population Structures in the Deep Marine Biosphere
Direct Selection of Human Genomic Loci by Microarray Hybridization
Whole Genome Sequencing and Resequencing
Transcriptome mapping
Specialized methods for cDNA sequencing
Library Normalization by dsDNA nuclease digestion

Bioinformatics And Data Analysis

Core for Applied Genomics and Ecology (CAGE)

CONTENTS:
Run-time applications
Post-run applications
Image processing
Signal processing
de novo Assembly
Reference Mapper
Variant analysis

Next Generation Dna Sequencing And The Birth Of A Golden Era For Microbial Ecology

Core for Applied Genomics and Ecology (CAGE)

In 2005, a breakthrough technology was Announced that provided a quantum leap In DNA sequencing capacity.

This technology differed from the Sanger method In many ways:
1. Eliminates cloning—completely circumvents cloning bias
2. Uses bead technology—DNA templates are attached to sepharose beads
3. Relies on pyrosequencing chemistry—synthesis is sequential not partial
4. Parallelizes the sequencing process—hundreds of thousands of beads can be sequenced in parallel

The bottom line: it makes production-scale sequencing available to the common man.

Syble T. Jones, Syble T. Jones, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Syble T. Jones is the former Food Service Director for Rapides Parish, Louisiana. When Syble started her career in 1968 she had 27,000 students spread across 54 schools.

Inhibition Of Adhesion Of Streptococcus Mutans To Hydroxylapatite By Commercial Dairy Powders And Individual Milk Proteins, Rachel Halpin, Maeve O'Connor, Dolores O'Riordan, Michael O'Sullivan, Damien Brady

Articles

The aim of this study was to investigate the inhibitory effect of various dairy powders and milk constituents on the adhesion of a clinical isolate of Streptococcus mutans to hydroxylapatite (HA), an analogue of tooth enamel. Adhesion of a microorganism to a cell surface such as epithelial cells or tooth enamel is considered to be the first step in pathogenesis. Inhibiting this process may have therapeutic effects in vivo. The adherence assays were performed by incubating S. mutans with HA in the presence of each test material for 45 min, followed by centrifugal separation of the HA. Unbound bacteria were …

Design And Synthesis Of Carbohydrate Based Derivatives As Antimicrobial Compounds, Aoife Smith

Doctoral

Investigations into the design of analogues of GlcNAc-Ins, the substrate for the enzyme GlcNAc-Ins deacetylase (mshB), a therapeutic target on the pathway to mycothiol biosynthesis in Mycobacterium tuberculosis are described. Initial studies directed towards the design of a substrate analogue were based on the 3-D structure and a proposed mechanism of action of mshB (deduced by Dr. Andrew McCarthy, EMBL). The compounds were designed with the aim to produce an analogue which could better mimic the natural substrate for mshB (GlcNAc-Ins) for crystallisation and mechanistic studies to further improve the knowledge of this enzyme. A series of fatty acid ester …

Guide To Floor Malting Of Sorghum And Millets, John R.N. Taylor

INTSORMIL Scientific Publications

Malt (dried, sprouted cereal grain) is the major ingredient in most beers and in certain hot and cold beverages. It is also a useful ingredient in some cereal food products such as bread and infant porridges. In terms of nutrients, malt contains mainly complex carbohydrates (starch and dietary fiber), but also protein of reasonable quality and availability, B vitamins and minerals. Malt is a source of hydrolytic enzymes, especially amylases. In brewing, the malt amylases produce the sugars which the yeast ferments to alcohol and carbon dioxide The amylases also increase the sweetness and improve the texture of food products …

Mattie Bradley, Mattie Bradley, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Mattie Bradley was hired as the Food Service Director/Cafeteria Manager for the Weiner School District, Weiner, AR in 1996. She was a local restaurant owner who decided to sell her business and retire. When the local school district found itself in need of a Food Services Director, Ms. Mattie’s reputation as an excellent cook and manager got the attention of the school district and she was immediately offered the position. Working within the guidelines of the Arkansas School Nutrition Program, Mattie and her staff provide wholesome meals, both breakfast and lunch, to over 300 students daily. For many students these …