Food Science Commons^™

Comparison Analyses Of Consumer Acceptance, Evoked Emotions, And Purchase Intent Between Gluten-Containing Versus Gluten-Free Chocolate Chip Cookie Products, Shaelyn Frauenhoffer, Eniola Ola, Suzanne Jervis, Susan E. Gauch, Han-Seok Seo

Food Science Faculty Publications and Presentations

The demand for gluten-free products has increased significantly over the past few decades. This study aimed to determine differences in consumer acceptance, emotional responses, and purchase intent between gluten-containing versus gluten-free chocolate chip cookies. Twelve commercially available chocolate chip cookie products from 11 brands were evaluated, including 7 gluten-free and 5 gluten-containing options. Eighty-nine participants without celiac disease took part in this 2-day study, evaluating six cookies per day. Participants rated sensory acceptance (appearance, flavor, texture, and overall liking) using a 9-point hedonic scale and evaluated specific sensory attributes (chocolate flavor, sweetness, chewiness, and hardness) using a 5-point just-about-right (JAR) …

Flexible Microelectrode-Based Impedance Immunosensor For Rapid Detection Of E. Coli O157:H7, Sonatan Kumar Biswas

Graduate Theses and Dissertations

Abstract Food contamination poses a significant threat to public health, the economy, and human health worldwide, occurring at any stage of the food supply chain, from farm to fork. Escherichia coli 0157:H7, recognized as one of the principal causes of foodborne illness, poses a considerable risk to food safety. The primary objective of this investigation is to devise a flexible microelectrode-based immunosensor capable of swiftly identifying E. coli O157:H7 cells without the need for incubation in a pure culture environment. In the development of the biosensor, the gold electrode (composed of 50% Au) underwent an initial coating process involving 2-aminoethanethiol/cysteamine, …

The Efficacy Of Foam-Based Hand Sanitizers For The Control Of Enveloped And Non-Enveloped Virus Transmission, Francis Torko

Graduate Theses and Dissertations

Infectious disease transmission due to viruses such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza virus, human noroviruses (HuNoV), and hepatitis A, can occur via person-to-person contact or contaminated surfaces. Effective hand hygiene, including hand washing and use of hand sanitizers, is considered a critical tool for the control of infectious disease transmission, as recommended by the United States Centers for Disease Control and Prevention and the World Health Organization. However, while research on hand washing efficacy is well-documented, research on hand sanitizer efficacy, particularly for foam-based products, remains limited. This research addressed critical gaps in the area of …

Comparisons Between Traditional And Gluten-Free Cookies In Sensory Attributes, Acceptance, And Evoked Emotions, Eniola Ola

Graduate Theses and Dissertations

The rise in food allergies and intolerances, notably conditions like Celiac disease, as well as a general shift of consumers to a more health-conscious lifestyle has significantly increased the demand for gluten-free products. Consumers increasingly seek gluten-free products, yet these alternatives often face challenges in replicating the sensory qualities of traditional gluten-containing foods. This study explores the sensory attributes, emotional responses, and labeling impacts on consumer perception of gluten-free and gluten-containing cookies. The main objective of this thesis was to address the gap in research on sensory evaluation of gluten free foods, specifically in terms of commercially available products. The …

Identification Of Antigens For Food Allergy And Food Allergen Detection, Ellenor Sell

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Antibody-based allergen testing is an essential part of allergen management in the food industry. These methods directly detect one or more molecules of the allergenic foodstuff (target’ molecule(s)) and the presence of the allergenic foodstuff is inferred. The identity of these target molecules is crucial to the performance of the method and the interpretation of results. The goal of this study was to develop protein/antibody capture methodology for the identification of antibody binding partners using mass spectrometry.

This study is broken down into three separate projects: the characterization of the antigen-antibody complexes present in sandwich ELISAs, LFDs, and human sera. …

Variations In Sensory And Emotional Responses To Gluten-Containing And Gluten-Free Cookie Products Under Blind And Labeled Conditions, Eniola Ola, Han-Seok Seo

Food Science Faculty Publications and Presentations

The gluten-free food market is expanding rapidly. However, consumer acceptance and emotional responses to gluten-free food, especially commercially available products, have received relatively underexplored. This study aimed to determine how consumer perceptions, acceptance, and emotional responses differ between gluten-containing (C) and gluten-free (F) chocolate chip cookies from three brands under both blind and labeled conditions. In the labeled condition, 84 participants without celiac disease evaluated 3 F cookies labeled "gluten-free" and 3 C cookies presented without claims on a plain white card. In the blind condition, they tested the six cookies without labels. Participants provided hedonic ratings, Just-About-Right (JAR) ratings, …

Encapsulation Of Lactobacillus Reuteri Dsm 17938 In W/O/W Emulsion: Influence Of Oil Type On Viability And Oxidative Stability, Nora Mohamed Alantali

Theses

Probiotics, known for their wide range of health benefits, have been gaining recognition on their effects on the gut-brain axis. This axis, operated via various pathways, can be modulated by the type and functions of probiotics found in the gut microflora. However, probiotics face several stress factors before reaching the gut which hinders them from being functional. The main objective of this thesis was to construct a stable double-emulsion-based delivery system for probiotics, which can act as a barrier against the harsh conditions of the digestive system. Lactobacillus reuteri DSM 17938 was loaded in a water-in-oil-in-water Pickering double emulsion system, …

Crónicas De Gastronomía Ancestral De La Provincia De Ubaté (Cundinamarca), Johanna Andrea Gil Palacios, Nancy Milena Valiente Triana, Nohora Liliana Agudelo Rodríguez, Carlos Alfonso López Urquina, Cristian Ballén Guarín, John Henry Vásquez Calderón

Institucional

Este libro es un viaje maravilloso que conduce al lector a comprender la estrecha relación entre territorio y gastronomía. Cada accidente geográfico representa un reto de sus pobladores que potencia su creatividad para sobrevivir e implica el esfuerzo para que broten frutos que se puedan llevar a la mesa, en sendas preparaciones que se van heredando entre generaciones. Las personas cuentan llenas de orgullo las gestas que han vivido en torno a la comida, las reuniones familiares, las fiestas patronales, y las convierten en la mejor vitrina de su identidad y la celebración de las cosechas. Es un verdadero placer …

Cutting Waste In Tupper's Restaurant, Logan Salvator, Christien Merritt, Lily Amaral, Erik Dukes

Earth Day Symposium on Climate and Sustainablity

No abstract provided.

A Systematic Review And Meta-Analysis Of Chemical Sanitizer Efficacy Against Biofilms Of Listeria Monocytogenes, Salmonella Enterica, And Stec On Food Processing Surfaces, Allyson N. Hamilton, Sarah L. Jones, Christopher A. Baker, Xinya Liang, Adam Siepielski, Ashlynn Robinson, Gayatri R. Dhulappanavar, Kristen E. Gibson

Food Science Faculty Publications and Presentations

Chemical sanitizers are applied to food processing surfaces to inactivate bacterial pathogens. Pathogen type, surface type along with sanitizer type, concentration, and contact time are important factors potentially impacting sanitation efficacy. Numerous studies on chemical agents and lab-generated biofilms have been published; however, cross-study comparisons can be difficult. A systematic literature review (SLR) and meta-analysis were conducted to evaluate chemical sanitizer efficacy against Listeria monocytogenes, Salmonella spp., and Shiga toxin-producing Escherichia coli (STEC) within lab-generated biofilms on food contact surfaces (FCSs). The SLR included 13 peer-reviewed articles published between 2000 and 2020. Sanitizer concentration, type, contact time, surface type, and …

Building Climate Resilience Through Food Recovery, San Diego Regional Climate Collaborative, Alexander Pourfard, Aranza Ruvalcaba

San Diego Regional Climate Collaborative

In an effort to combat GHG emissions from food waste, California passed Senate Bill 1383 (SB 1383) into law in 2016. The bill contains key provisions aimed at increasing edible food recovery. By rescuing food that would otherwise go to the landfill, California entities have been able to help save precious food and advance sustainable solutions to address climate change in their local communities. Since the food recovery requirements took effect in January of 2022, over 217,000 tons of unsold food have been recovered annually, providing more than 700 million meals to food-insecure Californians.

Highly Targeted Metabolomics Coupled With Gene Expression Analysis By Rt–Qpcr Improves Beef Separation Based On Grass, Grain, Or Grape Supplemented Diet, Lucas Krusinski, Chloe Castanon, Rosalee S. Hellberg, Isabella C. F. Maciel, Muhammad Ahsin, Stephan Van Vliet, Jason E. Rowntree, Jennifer I. Fenton

Food Science Faculty Articles and Research

The objective of this study was to use a multi-omics (i.e., gene expression quantification, metabolomics, and fatty acid [FA] profiling) approach to separate and authenticate beef from three different dietary groups. In this 2-year study, Red Angus steers (n = 54) were randomly allocated to one of three treatments: (1) complex biodiverse pasture (GRASS), (2) total mixed ration (TMR) in feedlot (GRAIN), or (3) TMR in feedlot supplemented with 5% (dry matter) grapeseed extract for the last 30 days (GRAPE). FAs were measured by gas chromatography-mass spectrometry (GC–MS), secondary metabolites were identified using ultra-high-performance liquid chromatography tandem mass spectrometry …

Effects Of Citric Acid, Synbiotic, And Probiotic Supplementation Through Drinking Water On Growth Performance, Carcass Yield, And Blood Biochemistry Of Broiler Chickens, Shahadot Hossain, Biswajit Kumar Biswas, Subir Das, Faija Sadia Pory, Rabin Raut, Fatima Yeasmin, Sharif Uddin Khan, Prantho Malakar Dipta, Sabbir Alom Shuvo, Tahera Yeasmin, Raihanul Hoque

Food and Animal Sciences Faculty Research

No abstract provided.

Vaccine Efficacy Of A Replication-Competent Interferon-Expressing Porcine Reproductive And Respiratory Syndrome (Prrs) Virus Against Nadc-34 Challenge, Laura C. Miller, Sarah J. Anderson, Alexandra C. Buckley, Erin E. Schirtzinger, Mahamudul Hasan, Kaitlyn M. Sarlo Davila, Damarius S. Fleming, Kelly M. Lager, Jiuyi Li, Yongming Sang

Food and Animal Sciences Faculty Research

Background/Objectives: Porcine reproductive and respiratory syndrome virus (PRRSV) significantly impedes swine production due to rapid genetic variation and suppression of antiviral interferon (IFN) responses, leading to ineffective immunity. To address this, we developed IFNmix, a replication-competent PRRSV modified live vaccine (MLV) candidate co-expressing three Type I IFN subclasses (IFNα, IFNβ, IFNδ) to enhance antiviral immunity. Methods: In two independent in vivo experiments, we compared the protection of IFNmix and a commercial PRRSV MLV vaccine during challenge with a virulent PRRSV strain. Clinical signs, antibody and cytokine production, viral replication, and lung pathology in IFNmix-vaccinated pigs were compared to those of …

Exploring Non-Traditional Yeast For Flavor Innovation In Non-Alcoholic Beer, Andrew Maust, Rahul Sen, Scott Lafontaine

Food Science Faculty Publications and Presentations

The demand for nonalcoholic beer (NAB) is growing, with nontraditional yeast strains emerging as valuable tools for brewers to craft distinct NABs. However, independent information about the performance of these commercially available yeasts remains limited. In this study, 11 nontraditional yeast strains were evaluated at two wort nutrient levels to assess their impact on beer chemistry, sensory attributes, and volatile profiles. Basic fermentation metrics were monitored, followed by descriptive sensory analysis and GC-MS/MS quantification of volatile compounds. Results revealed significant differentiation among yeast strains with unique aroma and flavor profiles driven by variations in ester production, fusel alcohol synthesis, and …

Rapid Quantification Of Salmonella Typhimurium In Ground Chicken Using Immunomagnetic Chemiluminescent Assay, Sandhya Thapa, Niraj Ghimire, Fur-Chi Chen

Food and Animal Sciences Faculty Research

Many countries have established regulatory frameworks to monitor and mitigate Salmonella contamination in poultry products. The ability to rapidly quantify Salmonella is critical for poultry processors to facilitate early detection, implement corrective measures, and enhance product safety. This study aimed to develop an Immunomagnetic Chemiluminescent Assay (IMCA) for the quantification of Salmonella Typhimurium in ground chicken. Immunomagnetic microbeads functionalized with monoclonal antibodies were employed to selectively capture and concentrate Salmonella from ground chicken samples. A biotin-labeled monoclonal antibody, followed by an avidin-horseradish peroxidase conjugate, was used to bind the captured bacteria and initiate a chemiluminescent reaction catalyzed by peroxidase. Light …

Utah's Farm To Fork Landscape: Stakeholders' Perspectives On Root Causes And Potential Solutions, Utsav Bhandari

Student Research Symposium

• Farm to Fork encourages direct connection between producers and consumers reducing the intermediaries (i.e., schools, pre-schools, daycare centers, etc.)
• Empowers local producers, boosts the local economy, enhances physical and mental well-being, and promotes self-sufficiency
• Utah's Farm to Fork Task Force was formed in 2015

Food For Thought: The Impact Of The Gut-Brain Axis On Mental Health, Emily S. Miiller

Honors Thesis

Research regarding the role of the human microbiome has grown over the years as professionals develop a better understanding of the gut-brain axis. New studies and expanding knowledge on the relationship between the nervous system and gut microbiome promote a deeper understanding of the impact of diet on mental health. Diet plays a crucial role in maintaining a healthy balance between the gut and the brain. Incorporating nutritional modulators, such as probiotics, prebiotics, and vitamins, is crucial for supporting the gut-brain axis by influencing neurotransmitter production, managing inflammation, and promoting the growth of beneficial gut bacteria. On the other hand, …

Inactivation Of E. Faecium Nrrl B-2354 In Whole Black Pepper By Fluidization With Hydrogen Peroxide Vapor, Daniela Segura

Department of Food Science and Technology: Master of Science with Project Option

This study evaluated Enterococcus faecium NRRL B-2354 as a surrogate for Salmonella inactivation in black peppercorns treated with hydrogen peroxide (HP) vapor via fluidization. The selected parameter for dwell temperature was 60ºC for 60 minutes. The reduction of both Salmonella and E. faecium, along with changes in water activity, color, and residual hydrogen peroxide, were measured before, immediately after treatment and at 24 and 48 hours post-treatment. Results showed that E. faecium exhibited a significantly greater reduction (4.63 ± 0.55 log CFU/g) compared to Salmonella (2.94 ± 0.16 log CFU/g) (p < 0.05), making E. faecium unsuitable as …

Growing South Dakota (Spring 2025), College Of Agriculture, Food And Environmental Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 2 Keeping South Dakota's food supply safe
[Page] 6 Controlling environmental listeria
[Page] 8 Inaugural 2+2 vet program class graduates
[Page] 10 Faculty honored for excellence
[Page] 12 New leader for agronomy, horticulture, plant science
[Page] 14 Students spend spring break in South Africa
[Page] 16 Hadacek offers advice to fellow graduates
[Page] 17 Park Interpretation and Management Club starts
[Page] 18 On the front lines with invasive species
[Page] 22 Director Karla Trautman retires
[Page] 24 Helping navigate precision ag
[Page] 26 Growing bigger, better beef
[Page] 28 Jackrabbits Then and Now