Detection And Quantification Of Allergen Cross-Contact In Shared Frying Oil Using Targeted Mass Spectrometry, Francisca Asigri

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

Cow’s milk and egg allergies are prevalent IgE-mediated food allergies that pose significant public health concerns worldwide. Although strict avoidance remains the primary management strategy, unintended exposure can still occur through allergen cross-contact, particularly in commercial and industrial food operations that utilize shared frying oils. The objective of this study was to identify and quantify allergen transfer in shared frying oil and assess the robustness of existing targeted mass spectrometry methods (LC-MS/MS) for detecting milk and egg proteins in heated oil matrices.

Heated oil spikes were developed by incorporating non-fat dry milk (NFDM) and whole egg powder (WEP) into oil …

Variations In Attitudes Toward Working With Robots And Concerns About Robots Replacing Jobs Among Midwesterners, Kawsheha Muraleetharan, Julia Mcquillan, Philip G. Crandall, Corliss A. O'Bryan, Trey Fago, Jospeh Jochman

Food Science Faculty Publications and Presentations

This study examines how social and worldview factors influence public attitudes toward workplace robotics in Nebraska, a major U.S. meat-producing state where automation adoption remains comparatively slow. Using data from the 2020 Nebraska Annual Social Indicators Survey (n = 2,213), we analyzed two core outcomes: willingness to work with robots ("robot happy") and concern about job replacement ("robot concern"). Ordinary least-squares regression models revealed that women, older adults, and those with less education were less positive about working with robots, while respondents with more education, higher financial security, stronger trust in science, and liberal political orientations expressed greater acceptance. Education …

Metabolomics In Precision Medicine: Application And Prospect In Cancer Research, Ming-Shi Shiao

Journal of Food and Drug Analysis

Metabolomics is the most recent and final discipline among the post-genomic, multiomics fields. It encompasses key technologies in systems biology, providing an overview of low-molecular-weight metabolites while examining disturbances to offer pathophysiological explanations. The two key analytical tools in metabolomics are nuclear magnetic resonance spectroscopy and mass spectrometry, which includes gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry. Metabolomic research relies on a three-stage data generation process: the first stage involves precise analytical chemistry to produce data; the second stage employs multivariate statistical analysis; and the last stage uses big data as a reference for comparison to establish biochemical, metabolic, and …

Mass Spectrometry-Based Metabolomics For Studying Gut Microbiota-Derived Metabolites In Biological Samples, Ya-Ting Lin, Huai-Hsuan Chiu, Chih-Ning Cheng, Ching-Hua Kuo

Journal of Food and Drug Analysis

Gut microbiota produces a wide range of metabolites and plays a critical role in maintaining host health. Dysregulation of these metabolites can influence host metabolism through systemic circulation, contributing to the development of various diseases, including immunological, neurological and cancer-related disorders. Chromatography coupled with mass spectrometry (MS) has emerged as a powerful analytical approach, offering high sensitivity and resolution for studying gut microbiota-related metabolites. This review provides a comprehensive overview of chromatographic MS-based methods applied to the study of the gut microbial metabolome. We summarize strategies for sample collection, storage, and preparation of commonly analyzed sample types, including feces, plasma/serum, …

Special Issue: Analytical Technologies In Metabolomics: Applications And Future Prospects, Sung-Fang Chen

Journal of Food and Drug Analysis

No abstract for this article type.

Fortification Of Flour Cultivated In The Territory Of The Republic Of Uzbekistan With Own Iron And Zinc, Nodira B. Kurbanova, Gulnoza Z. Djakhangirova, Bakhtiyar I. Kurbanov, Dase D. Klava

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of the study is to investigate the regional characteristics of iron and zinc content in wheat and flour produced in Uzbekistan using instrumental neutron activation analysis, and on this basis to provide a scientific justification for effective approaches to flour fortification and the preservation of micronutrients during grain processing. The study analyzed wheat flour produced from grain grown in five regions of Uzbekistan (Khorezm, Surkhandarya, Bukhara, Tashkent, and Fergana). Instrumental Neutron Activation Analysis (INAA) was applied for the first time in Uzbekistan to comprehensively assess the microelement composition of flour. It was found that fortification using natural sources …

Preparation Of Semi-Hard Cacciota Cheese From Local Milk And Analysis Of Its Physicochemical And Microbiological Properties, Shahnoza U. Yuldasheva, Dilshod P. Rakhimov, Dilrabo Q. Maksumova, Shahlo I. Akhmedova, Asaloy U. Narimonova

CHEMISTRY AND CHEMICAL ENGINEERING

Including cheese products in daily diet will give tangible results, enriching body with nutrients rich in high-quality proteins. The aim of the research is to create an Italian semi-hard cheese, caciotta, from local cow's milk. In the experiment, pepsin of the CHY-MAX® Powder Plus NB brand was used. The resulting product contained 1.46 mg/kg zinc (Zn), which is approximately 34 times lower than the permissible limit (50 mg/kg), which is considered a high quality indicator. From a biological safety point of view, no aflatoxin M1 was detected in the cheese (0.0 mg/kg), indicating the absence of mycotoxin contamination of cow's …

Utah Altitude Adjustments For Home Canning, Margie Memmott, Ariel Petersen, Callahan Adams, Andrea Schmutz

All Current Publications

Knowing your altitude is critical for canning. Safe home food preservation depends on adjusting processing times and pressures for altitude. This fact sheet provides a county-by-county and town-by-town listing of elevations across Utah, paired with the boiling-water and pressure canner adjustments recommended by the U.S. Department of Agriculture (USDA) and the National Center for Home Food Preservation. By referencing this resource, Extension educators, food preservation instructors, and home canners can quickly identify the correct processing adjustment for their location.

Nexus Of Food Security Versus Armed Conflict In The Context Of Climate Change In Mali, Moussa Macalou, Youssouf Diabate, Abdoulaye Nientao, Adama B. Coulibaly

Professional Agricultural Workers Journal

The nexus between food security and armed conflict, with particular focus on developing countries, has been analyzed by a few studies in the literature. Every country under armed conflict is obligated to solve related food security issues. Therefore, the overall objective of this study was to analyze the nexus between households’ food security and armed conflicts in the context of climate change in Mali. To achieve this objective, first, the study used an ordinary least squares model to determine the factors influencing households’ food security. Second, it used an ordered logit model to determine the factors influencing armed conflict. Apart …

Impact Of In-Depth Adoption Of System Of Rice Intensification On Food Security Of Smallholder Farm Households In Mali, Moussa Macalou, John Baptist D. Jatoe

Professional Agricultural Workers Journal

The system of rice intensification (SRI) was implemented in Mali to boost rice productivity. The objectives of this paper are to identify the constraints faced by SRI adopters, estimate the food security index, and assess the impact of in-depth adoption of SRI on smallholder farm households’ food security. The study uses Kendall’s ranking to rank the six main constraints identified from the literature. The study uses the Household Food Insecurity Access Scale to estimate households’ food security index. Using primary data collected on rice farm households, the study combines the multivalued treatment effect inverse probability weighted regression adjustment and the …

Evaluation Of Two Varieties Of Okra (Abelmoschus Esculentus (L. Moench) Growth In A Wiregrass Tunnel House And Field, James E. Currington Sr, Victor Khan, Billie Grant, George X. Hunter, Raymon Shange, Cassandra Searight, Edward Sparks, Jeffery Moore, James E. Currington Iii

Professional Agricultural Workers Journal

“Clemson Spineless” and “Jambalaya” okra were grown in a Tunnel House and field to compare yield and other growth parameters. A split-plot design with three replications/treatment was used; the Tunnel House and field were main plots, and varieties split plot. Plant height was significantly taller, and pod harvesting began two weeks earlier in the Tunnel House. Yield showed no significant differences between varieties, and Tunnel House vs. field-produced okra. However, “Clemson Spineless” produced 9% higher pod yield in the Tunnel House than “Jambalaya,” which had 23% higher field yield than “Clemson Spineless.” An enterprise budget analysis showed that Tunnel House …

Exploring The Influence Of Environmental Motivations On Consumer Attitudes And Purchase Intentions Toward Upcycled Foods, Peng Lu, Jennifer Waldeck, Keith Weber, Hualu Zhou

Communication Faculty Articles and Research

Food loss and waste (FLW) present pressing environmental and economic challenges. Upcycling technologies provide a sustainable pathway by transforming food by-products into value-added products; however, consumer acceptance remains a critical barrier. Guided by Self-Determination Theory (SDT), this study investigates how environmental motivations influence consumers’ attitudes and purchase intentions toward milk enriched with upcycled peanut skins. Data were collected from a nationally representative sample of 1488 U.S. adults. Structural equation modeling (SEM) was employed to test hypothesized relationships among motivational constructs, and cluster analysis was used to identify consumer segments based on motivational profiles. The results show that intrinsic motivation and …

Alternative Tree Species For Utah Syrup Production, Abigail Porter, Steven Price, Youping Sun, Darren Mcavoy

All Current Publications

When thinking about producing syrup from trees, most people's minds go straight to maple trees. However, a variety of other species in the Intermountain West can be tapped for sap, including other maple species, birch, sycamore, aspen, and walnut. This fact sheet reviews alternative tree species for syrup production in Utah.

The Nexus Between Perceived And Scientific Weather Patterns And Its Effects On Cereal Crop Production In Manyoni District, Tanzania, Fadhili Lufunyo Ngajilo, Helena Elias Myeya, Evarist Fundisha Swai

Journal of Humanities and Social Sciences

This study examines the nexus between perceived and scientific weather patterns, and its effects on cereal crop production in Manyoni District; and involved 157 participants. Both quantitative and qualitative data were collected through a mixed methods research approach. The data were collected through a household survey, FGDs, in-depth interviews and documentary review methods for triangulation and complementarity purposes. The quantitative data were analysed through descriptive and inferential statistics with IBM SPSS (version 27) and Microsoft Excel Office (version 2007). The results indicate that smallholder farmers perceived that rainfall had been fluctuating with increasing trends, while temperature and wind had been …

Utah Farmers Markets Impact Report: Strengthening Local Food Systems, Economic Resilience, And Community Well-Being, Jaclyn Pace, Steven Price, Roslynn Brain-Mccann, Joshua Cafferty, Blue Cook

All Current Publications

Utah's farmers markets are more than places to shop — they are essential community infrastructure. With more than 60 markets in operation across the state, people rely on their local market for food, leisure, and community connection. From 2023–2025, the Utah Farmers Market Network (UFMN) and Utah State University (USU) Extension led a three-year, mixed-methods evaluation to document the economic and social contributions of farmers markets across the state. Over three market seasons, more than 230,000 customer responses were collected at markets in St. George, Cedar City, Hurricane, Ogden, Murray, Wheeler Farm, Millcreek, Downtown Salt Lake City, and Price — …

Farmers Markets As Community Infrastructure: Evidence From A Three-Year Statewide Data Project In Utah, Jaclyn Pace, Roslynn Mccann, Blue Cook, Steven Price, Lorali Smith, Dianna Parkynn, Joshua Cafferty

Outcomes and Impact Quarterly

Utah farmers markets play a critical role in food access, small business viability, and community connection, yet limited statewide data document their impact. The Utah Farmers Market Network (UFMN) and Utah State University (USU) Extension conducted a mixed-methods evaluation (2023–2025) and found that farmers markets make valuable contributions to the community.

Development Of Antimicrobial Food Packaging Films Based On Electrospun Polycaprolactone Nanofibers Encapsulating Thyme Oil Nanoemulsions, Mahfuzur Rahman, Abdus Sobhan, Hari Kotturi, Sarder Sadique, Morshed Khandaker

Publications

This study developed and characterized a novel antimicrobial food packaging film fabricated from electrospun polycaprolactone (PCL) nanofibers incorporated with thyme oil nanoemulsions (TONEs). The concentration of TONEs in the film ranged from 2.5 to 15 % (v/v). The physicochemical properties, including pH, viscosity, and water absorption of the film were evaluated, with results showing favorable values (TONEs pH ≈ 5.46, viscosity ≈ 0.26 cP, contact angle ≈ 109-127⁰ and water absorption ≈ 21.47 %). The microstructure of the film was observed using scanning electron microscopy (SEM), which revealed the uniform dispersion of TONEs within the PCL nanofibrous matrix, with …

Exploring Non-Conventional Substrates: The Role Of Hibiscus And Whey In Kombucha Fermentation, Benjamin J. Lee

Master's Theses

This study evaluated the impact of hibiscus and whey as alternative fermentation substrates on the physicochemical, phytochemical, and microbial properties of kombucha. A 2 × 2 full factorial design was used to compare four treatments: black tea + water (BW), black tea + whey (BH), hibiscus + water (HW), and hibiscus + whey (HH). The fermentation solvents (water or whey) were heated to 88 °C, infused with 0.6% (w/v) black tea or hibiscus for 10 minutes, sweetened with 10% (w/v) sucrose, cooled to 22 °C, and inoculated with 20% (v/v) kombucha starter culture. Fermentations were carried out at 22 °C …

Evaluating The Printability And Digestibility Of 3d-Printed Pea-Sorghum Protein Gels, Sorour Barekat, Ali Ubeyitogullari

Food Science Faculty Publications and Presentations

This study explored the 3D printability and digestibility of pea and sorghum protein gels as novel plant-based bioinks. First, 25 % sorghum protein gel (SPG25) and 15–25 % pea protein gels were prepared, and the effect of extruders’ nozzle size on printability was evaluated. Samples produced at the optimized conditions were then used for analyzing particle size, microstructure, secondary structure, and in vitro digestibility. Pea protein gel at 20 % (w/w) (PPG20) and SPG25 showed ideal rheological properties, including shear-thinning behavior and rapid recovery. Dual-nozzle 3D printing was optimized at a nozzle diameter of 0.52 mm and a speed of …

Alkaline And Acid Extraction Of An L-Tryptophan–Sunflower Flour Red Colorant: Production, Characterization, And Utilization, Spencer Nguyen, Marissa Wong, Lilian Were Senger

Food Science Faculty Articles and Research

The objective was to produce and characterize a red colorant resulting from interaction of sunflower-derived chlorogenic acid with L-tryptophan/Trp and to evaluate its applications. Yield, intensity, solubility, stability, protein, and metal content of colorants from pH 9 and pH 11 lyophilized sunflower flour- Trp colorants were measured. Red color formation took < 3 h with alkalization and subsequent acidification. The sunflower flour: Trp mixture ratio that produced the greatest redness was 10:2. The highest red pigment was in supernatants and not the precipitates. The red colorant intensity and solubility were highest at neutral pH when compared to acidic pH solutions. The color stability of the new red colorant in icing and refrigerated whole milk matrices, when assessed weekly for a month, showed no color change in refrigerated milk. After 30 min of incubation at 63 °C, pinkness in milk remained unchanged or increased. The pink color, however, faded in icing over time due to exposure to light. The present study established a new natural red colorant developed from sunflower protein-Trp mixtures at alkaline pH, as well as its application in icings and whole milk for commercial strawberry milk products. This colorant could serve as a replacement for the synthetic petroleum-based Red 3.

Electric Pressure Cookers: What You Need To Know, Callahan Adams, Emily Smith

All Current Publications

Electric pressure cookers (EPCs) offer convenience, versatility, and efficiency in everyday cooking. EPCs offer multiple cooking functions beyond pressure cooking, including sautéing, slow cooking, steaming, cooking rice, and preparing yogurt. They are not suitable for pressure canning, as confirmed by multiple Extension research studies and national guidelines. When used properly, EPCs provide a safe and effective way to prepare meals quickly while saving counter and storage space.

From Waste To Sustainability: Exploring Consumer Purchase Intentions Of Milk Enriched With Upcycled Peanut Skins, Peng Lu, Fan Xu, Jennifer Waldeck, Keith Weber, Hualu Zhou

Communication Faculty Articles and Research

Highlights

• National survey investigated consumer acceptance of milk enriched with upcycled peanut skins.
• Developed a conceptual model based on Technology Acceptance Model.
• Identified that consumer attitudes and emotions are essential in the purchase intentions of upcycled foods.
• Identified social influence as a determinator of consumers' attitudes and purchase intentions.
• Inform and advance research, practice, and policy that promotes upcycled food products.

Humanity Is Evolving Its Consciousness: The Role Of Archetypal Energies As Guides During An Unfolding Weeding Out And Alignment Process, Carroy U. Ferguson

Psychology Faculty Publication Series

Humanity is evolving its consciousness at individual and collective levels.  Given these seemingly tumultuous times, as of this writing (January 2026), to make such a statement may sound like a strange thing to say.  However, I suggest that if you are alive today and if you are reading these words, these are the very times for which you were born—to assist Humanity as it evolves its consciousness with your unique gifts, whatever they may be.  That is, this period of our individual and collective human being-ness may be characterized as an unfolding period of weeding out and alignment with the …

The Innovative Food Choice Map As A Bottom-Up Mixed-Methods Approach To Studying Food Choice Motivations, Uyen Thuy Xuan Phan, Edgar Chambers Iv

Food Science Faculty Articles and Research

This study presents the innovative Food Choice Map (iFCM) as a methodological innovation for investigating food choice motivations using an integrated qualitative and quantitative approach. One hundred in-depth interviews were conducted with adults living in the United States, during which participants constructed individualized visual maps of their typical weekly diet. These maps documented specific foods and beverages, eating occasions, frequencies of consumption, and self-articulated motivations for each choice. Using a bottom-up framework grounded in real consumption events, qualitative data were inductively coded into fifteen motivation constructs, which were subsequently analyzed using Correspondence Analysis to demonstrate how motivational patterns can be …

Analysis Of Active Ingredients In Medicinal Herbs With High-Performance Liquid Chromatography And Related Technologies: A Review, T.-H. Tsai, C.-Y. Hong, C.-F. Chen

Journal of Food and Drug Analysis

An increasing number of analytical techniques have been brought to bear on the herbal drugs used in traditional Chinese medicine. This in turn has led to improved quality control of medicinal herbs, ingredient stability and shelf-life tests, ensurement of the concentrations of herbal drug ingredients in biological fluids, and pharmacokinetic studies. In the past decades, gas chromatography has been the method of choice for the analysis of volatile compounds, while liquid chromatography is a highly successful separation technique for nonvolatile molecules. Recently, high-performance liquid chromatography coupled with various column and detection systems have become some of the most important techniques …

Predicting Male Flowering Time In Maize Using Machine Learning Technique, Dipok Deb

Data Science and Data Mining

This study compares three machine learning approaches—Elastic Net, Principal Component Regression (PCR), and Partial Least Squares (PLS)—for variable selection and prediction within a high-dimensional Maize-GWAS framework. The goal was to accurately predict the complex polygenic trait of time to male flowering while managing the challenges of numerous, highly correlated genetic markers. The ENET model, which combines l1 and l2 penalties, delivered the highest predictive accuracy and successfully identified a select subset of the most influential genetic variants. In contrast, PCR and PLS, both utilizing dimension reduction, offered a significant advantage in computational speed and model stability. The findings confirm that …

Growth Performance Of Laying Hens Fed Diets Containing Different Levels Of Palm Kernel Meal And Copra Meal, Aynan Gunawan, Burhanudin Sundu, Ummiani Hatta, Sugiarto Sugiarto

Jurnal Ilmu Ternak Universitas Padjadjaran

Abstract

Feed plays an important role in livestock metabolism, especially to support growth, maintain body condition, and production. Therefore, efforts are needed to find high-quality feed ingredients that are easy to obtain, sustainably available, do not compete with human needs, are non-toxic, and economical. One alternative feed ingredient that can be optimized to reduce feed costs is industrial waste, such as coconut meal and palm kernel meal. This research was conducted at the Laboratory of the Faculty of Animal Husbandry and Fisheries, Tadulako University, Palu, for five weeks, namely from March 19, 2022 to May 20, 2022. A total of …

Effect Of Corn Flour Addition On The Physical And Chemical Quality Of Wedelia Trilobata (L) Hitchc Weed Silage For Ruminant Livestock Feed, Ajat Sudrajat, Retno Galuh Syaharani, Nur Rasminati, Wahyu Candra Saputra, Niken Astuti, Raden Febrianto Christi, Fazhana Ismail

Jurnal Ilmu Ternak Universitas Padjadjaran

Research on the physical and chemical quality of weed silage with the addition of corn flour has been carried out. The research was carried out on November 30, 2024 – February 25, 2025 at the Animal Nutrition Laboratory of the Animal Husbandry Study Program, Mercu Buana Yogyakarta University and the Chem-Mix Bantul laboratory, Yogyakarta. The study used an experimental method with a complete random design (RAL) in a unidirectional pattern using 4 treatments, namely P0 (no treatment), P1 (1% corn flour), P2 (3% corn flour) and P3 (5% corn flour), then each treatment was replicated three times. In each treatment, …

Effects Of 1,25-Dihydroxyvitamin D3 Supplementation On Performance Of 60-Week-Old Layers, Edgen Geñoso, Listya Purnamasari, Joseph Olarve, Joseph Dela Cruz

Jurnal Ilmu Ternak Universitas Padjadjaran

The effects of 1,25 dihydroxyvitamin D3 supplementation on egg production, percent hen house, percent hen day, mortality rate and egg size on 60-week-old laying hens were studied. There were 5 treatment groups of layer hens where Treatment 1 served as control supplemented with commercial feed without vitamin D3, Treatment 2 as positive control supplemented with commercial feed and vitamin D3 HyD, which was already used by the poultry farm, Treatment 3 supplemented with commercial feed and Active D at an inclusion rate of 75 ppm per ton of feeds, Treatment 4 supplemented with commercial feed and Active D at an …

Fermentabilitas Dan Kecernaan Ransum Domba Yang Mengandung Kulit Buah Pisang Muli (In Vitro), Iman Hernaman

Jurnal Ilmu Ternak Universitas Padjadjaran

Kulit buah pisang Muli memiliki potensi sebagai bahan pakan sumber serat pengganti rumput lapang, namun saat ini penggunaannya masih terbatas. Penelitian bertujuan untuk mempelajari penggunaan kulit buah pisang Muli dalam ransum terhadap fermentabilitas dan kecernaan (in vitro). Penelitian menggunakan rancangan acak lengkap dengan 4 perlakuan ransum yang mengandung 10, 20, 30, dan 40% kulit buah pisang Muli. Data yang terkumpul dianalisis dengan menggunakan Uji Duncan. Penelitian menghasilkan data yang memberi petunjuk adanya pengaruh nyata (P3yang terendah yaitu berturut-turut sebesar 161,5 mM, 66,72%, 66,15% dan 1,94 mM. Hasil penelitian menyimpulkan bahwa penggunaan kulit buah pisang Muli dapat sebanyak 40% dapat digunakan …