Food Science Commons^™

Virus Association With Bacteria And Bacterial Cell Components Enhance Virus Infectivity, Wenjun Deng, Giselle Almeida, Kristen E. Gibson

Food Science Faculty Publications and Presentations

The transmission and infection of enteric viruses can be influenced by co-existing bacteria within the environment and host. However, the viral binding ligands on bacteria and the underlying interaction mechanisms remain unclear. This study characterized the association of norovirus surrogate Tulane virus (TuV) and murine norovirus (MNV) as well as the human enteric virus Aichi virus (AiV) with six bacteria strains (Pantoea agglomerans, Pantoea ananatis, Bacillus cereus, Enterobacter cloacae, Exiguobacterium sibiricum, Pseudomonas spp.). At room temperature, the viruses bound to all bacteria in strain-dependent rates and remained bound for at least 2 h. The virus association with two gram-positive bacteria …

Enhancing In Vitro Digestibility And Volatile Profile Of Sorghum Proteins Using Supercritical Carbon Dioxide Drying, Nafisa Sadaf, Arda Tuhanioglu, Safoura Ahmadzadeh, Ali Ubeyitogullari

Food Science Faculty Publications and Presentations

The goal of this research was to use supercritical carbon dioxide (SC-CO2) drying as a novel approach to generate sorghum protein concentrates with enhanced functional characteristics. Sorghum protein concentrates were extracted from white whole-grain sorghum flour and dried in two ways: freeze-drying and SC-CO2 drying. The dried proteins were characterized for their volatile compound content, in vitro digestibility, and amino acid composition. A more porous structure was observed for the SC-CO2-dried sorghum proteins compared with their freeze-dried counterparts. In the SC-CO2-dried samples, the levels of alcohols, esters, and organic acids were significantly lower than those in the freeze-dried ones, whereas …

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

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

[Page] 2 Native Plant Initiative on a mission
[Page] 4 Gees give back
[Page] 7 Christensen named assistant dean
[Page] 8 Fennell honored in plant biology
[Page] 9 New ag communication faculty
[Page] 10 SDSU Extension awards
[Page] 12 Veterinary medicine class welcomed
[Page] 13 Coulter honored
[Page] 14 National beef award winners
[Page] 15 Department celebrates 100 years
[Page] 16 Southeast Research Farm growing
[Page] 18 Saving the flock
[Page] 22 Energize conference inspires
[Page] 24 BeefSD helping producers
[Page] 25 SDSU Extension retirements
[Page] 26 New food safety testing service
[Page] 27 Bringing back bison
[Page] 28 Jackrabbits …

Letter From The Faculty Editor, Beth Kegley

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

How Can University-Community Partnerships Strengthen Food Literacy To Improve Food Access And Food System Resilience In Rhode Island?, Jocelyn Furtado

Student Publications

Nearly two out of every five households in Rhode Island experience difficulties accessing adequate and nutritious food, falling into the category of food insecure. While it is not the responsibility of a sole organization to reverse this complex systemic issue, collaborative efforts are a step toward combating food insecurity and systems resilience through improving food literacy. When accomplished within a community, adequate food literacy can combat food insecurity. To the same effect, food insecurity may cause a lack of food literacy.

To hone in on the relationship of food literacy as it relates to food insecurity and food systems resilience, …

Decreasing Food Waste In Home Kitchens By Increasing Food Literacy, Thao Rich

Student Publications

In a world that produces enough food for all of its occupants, a staggering amount of it bypasses empty stomachs and goes into landfills every day. There it sits in a plastic bag, which delays decomposition and increases the harmful greenhouse gas emissions. There are numerous reasons for the inequitable distribution of food ranging from politics to logistics, but the fact is that each person can make a dent in reducing their carbon footprint by simply reducing the amount of food they place in the trash each week. Food waste reduction is a small goal that requires no additional spending, …

Modeling Wild Rice Bed Health: A Dual Metric Approach For Bed Strength And Invasive Impact, Seth Sisneros-Martinez

Journal of Earth and Life Science

Wild rice (mannoomin; Zizania palustris) is an aquatic grain that grows in slow-moving rivers and shallow bays throughout northern Minnesota. In Headquarters Bay on Leech Lake, wild rice has served as a cultural staple for Indigenous communities for centuries. However, its population has declined in recent years due to multiple environmental issues. One potential contributor is Eurasian watermilfoil (Myriophyllum spicatum; EWM), an invasive species that forms dense mats capable of outcompeting native aquatic vegetation, including wild rice. EWM was first recorded on the southern shoreline of Leech Lake in 2005 and has since become widespread. This study …

Copolyamide-Based Modified Atmosphere Packaging Attenuates Phenolic Degradation And Maintains Postharvest Quality Of Rubus Berries, Hafiz Muhammad Shoaib Shah, Zora Singh, Mahmood Ul Hasan, Eben Afrifa-Yamoah, Andrew Woodward

Research outputs 2022 to 2026

The highly perishable nature of Rubus berries, particularly their susceptibility to water loss and earlier senescence, significantly limits their shelf life. In this study, we investigated the mechanistic role of modified atmosphere packaging (MAP) on the physiochemical quality, phenolic metabolism, and antioxidant potential of blackberries and raspberries during cold storage (2 ± 1 °C) for 12 and 10 days, respectively. Modified atmosphere (MA)-packed Rubus berries exhibited higher total phenolics accompanied by higher activities of shikimate dehydrogenase, and phenylalanine ammonia-lyase. Furthermore, MA-packed Rubus berries demonstrated lower hydrogen peroxide by maintaining higher catalase activity and delayed lipid peroxidation during the entire period …

The Impact Of Solvent Extraction And Enzyme-Assisted Extraction On The Yield And Quality Of Black Soldier Fly Larvae (Hermetia Illucens) Oil, Achini Madushani Mannawa Arachchige, Mark Williams, W. M.A.D.Binosha Fernando, Weeraya Karnpanit, Jane Lumanlan, Vijay Jayasena

Research outputs 2022 to 2026

The increased interest in black soldier fly larvae (BSFL) oil is driven by its beneficial fatty acid composition, leading to the development of effective extraction methods. This study evaluated the impact of solvent extraction (SE) and enzyme-assisted extraction (EAE) on the yield and quality of BSFL oil. SE using hexane, petroleum ether, isopropanol, and ethanol after 6 hr of extraction resulted in higher yields compared to EAE using alcalase, papain, and trypsin after 24 hr, with the highest yield recorded for petroleum ether (33%), followed by isopropanol (30%). Isopropanol extraction demonstrated the highest antioxidant activity (77%). The results indicated a …

Postharvest Aqueous Ozonation Alleviates Chilling Injury By Upregulating Ascorbate-Glutathione (Asa-Gsh) Cycle And Associated Antioxidant Enzymes In Cold-Stored ‘Kensington Pride’ Mango Fruit, Mekhala Dinushi Kananke Vithana, Mahmood Ul Hasan, Hafiz Muhammad Shoaib Shah, Zora Singh

Research outputs 2022 to 2026

Chilling injury (CI) hinders prolonged cold storage of mangoes (Mangifera indica L.). Hence, the influence of postharvest aqueous ozonation (PAO) (1 mg ozone s^{− 1}) of mature green ‘Kensington Pride’ mangoes for 10, 20 and 30 min preceding storage at 5 °C for 21 and 28 d on modulating CI, cell membrane integrity, ascorbate-glutathione (AsA-GSH) cycle, antioxidant enzymes and fruit quality were investigated. Compared to control, 10 min PAO significantly reduced CI index (62.5% and 42.9%), CI incidence (40.5% and 41.4%), weight loss (18.4% and 21.8%) and malondialdehyde (MDA) in peel (61.8% and 71.7%) in 21 and 28 …

Preharvest Methyl Jasmonate Application Delays Cell Wall Degradation And Upregulates Phenolic Metabolism And Antioxidant Activities In Cold Stored Raspberries, Hafiz Muhammad Shoaib Shah, Zora Singh, Mahmood Ul Hasan, Andrew Woodward, Eben Afrifa-Yamoah

Research outputs 2022 to 2026

The effects of preharvest methyl jasmonate (MeJA) spray application on the physicochemical quality, metabolism of phenolics, and cell wall components in raspberries were investigated during a 10-day cold storage period. MeJA spray reduced firmness loss, decay incidence, and weight loss, while maintained higher levels of soluble solids content, ascorbic acid, anthocyanins and flavonoids in raspberries. Furthermore, MeJA application resulted in increased total pectin and protopectin levels, as well as lowered water-soluble pectin, and activities of pectin methyl esterase, polygalacturonase and cellulase enzymes. Additionally, MeJA treatment upregulated the phenylpropanoid pathway, leading to higher endogenous phenolics and activities of phenylalanine-ammonia lyase and …

Postharvest Methyl Jasmonate Application Delays Softening, And Maintains The Antioxidant Potential Of Cold-Stored Jackfruit Bulbs, Jashanpreet Kaur, Zora Singh, Muhammad Sohail Mazhar, Hafiz Muhammad Shoaib Shah, Andrew Woodward

Research outputs 2022 to 2026

Methyl jasmonate (MeJA) is widely studied for maintaining fruit quality during storage, but its effects on jackfruit remain unexplored. The efficacy of postharvest MeJA dip application (0, 0.25, 0.5, and 1.0 mM) in maintaining postharvest quality of cold stored jackfruit bulbs was evaluated over 20 d cold storage duration at 6 °C and 85–90% relative humidity. Bulbs treated with 1.0 mM MeJA did not exhibit any disease symptoms over the entire cold storage duration. Compared with the control, 1.0 mM MeJA-treated bulbs maintained higher carotenoids (17.3%), phenolics (18.12%), flavonoids (22.3%), and ascorbic acid (28.6%) content at the end of cold …

Effects Of Storage Conditions On The Composition, Physical Properties, And Functionalities Of Peas And Lentils, Fatimah Alsaeed

Electronic Theses and Dissertations

Peas (Pisum sativum L.) and lentils (Lens culinaris) are nutritionally rich pulses valued for their high protein, fiber, and starch content. Although their composition and health advantages are widely known, little is known about the effects of long-term storage on their functional qualities and nutritional value. The purpose of this study was to investigate the impact of storage conditions and duration on the proximate composition, physical attributes, and techno-functional traits of lentils and peas. Storage conditions included bin (BIN; -30 to 41°C, 20–98% RH), non-environmentally controlled warehouse (NECW; -23 to 32°C, 25–84% RH), and environmentally controlled warehouse (ECW; 19–21°C, 50–53% …

Innovative Approaches To Enhancing The Functional Properties Of Dairy Products: Evaluating Water Hydration Effects On Fat-Free Mozzarella Baking Performance And Impact Of Hyaluronic Acid On The Functional Properties Of Milk, Suresh Ganpatbhai Sutariya

Electronic Theses and Dissertations

In recent years, the dairy sector has experienced a significant rise in the healthy eating trend, with consumers increasingly seeking products that are fat-free, free from added sugars, and high in protein. Additionally, specialized health dairy items enriched with functional ingredients such as probiotics, prebiotics, and bioactive peptides are gaining traction for their added health benefits. This dissertation covers three studies in two domains: the first on water hydration's impact on fat-free mozzarella baking, and the second on the influence of hyaluronic acid, and its combination with kappa-carrageenan, on the physical properties of milk. One such product, Fat-free mozzarella is …

Adaptation For Whom? Understanding The Impacts Of Dyke Policies On Small-Scale Farmers In Ca Mau Province Of Vietnam, Nguyen Minh Quang, Nguyen Van Minh, Nguyen Vo Chau Ngan, Martha B. Lerski

Publications and Research

Low-lying deltas worldwide are extremely vulnerable to sea-level rise. As the risks of climate-induced flooding become increasingly clear, the thirst for infrastructure-driven adaptation increases. This highlights a patent need to understand the impacts of engineering adaptation solutions, especially those targeting built structures such as dykes and sluices, on farmers from a bottom-up, farmer-centred perspective. The study addresses this call by examining cases where dyke policies, while successful in some dimensions, have undermined small-scale farmer livelihoods in Ca Mau ― Vietnam’s southernmost rural province. It identifies areas in need of attention and adds empirical data related to this group of farmers. …

Jbs’S Initial Public Offering: Threats To Environmental And Human Rights, Kayla Thompson

Indiana Journal of Law and Social Equality

This paper centers around the decision to be made regarding JBS, the world’s largest meat company, wanting to list shares on the New York Stock Exchange (NYSE), and the environmental and social impacts that could result from the Security and Exchange Commission’s (SEC) approval. JBS has been at the center of various controversies over the last several years, including sourcing cattle from ranches acquired through illegal deforestation, engaging in greenwashing practices, incorrectly reporting greenhouse gas emissions, and engaging in human rights abuses. Many environmental groups have filed complaints with the SEC concerning JBS’s bid to list on the NYSE. The …

Optimization Of Bioactive Compound Extraction From Rambutan Peels Using Pulsed Electric Field And Its Application, Robby Aji Prima

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study aimed to optimize the extraction of bioactive compounds from rambutan peel using Pulsed Electric Field (PEF) technology and evaluate its functionality as a natural antioxidant. A Central Composite Design (CCD) was employed to examine the effects of ethanol concentration, electric field intensity, and pulse number on extraction efficiency. Response Surface Methodology (RSM) analysis revealed that the optimization model achieved a high composite desirability (D = 0.982). The optimal extraction conditions were identified as 70% ethanol, an electric field intensity of 4,000 V/cm, and 120 pulses. Under these conditions, the extract exhibited high levels of total phenolics, flavonoids, and …

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 26 2025, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Letter From The Dean, Jeff Edwards

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Featured Faculty Mentor/Student Team, Kelly Loftin, Eva Berryhill

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Field Performance Evaluation Of Selectively Bred Eastern Oyster Lines In New Jersey And Rhode Island, Seraphina Satkowski

Open Access Master's Theses

Eastern oyster aquaculture has increased steadily over the last three decades, but the industry has yet to achieve its full potential. In the Northeast USA, production is limited in part by a lack of high performing stocks suited to the geographically broad and heterogenous growing environments. For this study, hatchery lines from Maine, New York, and New Jersey as well as crosses between each hatchery line and the selectively bred Northeast high survival (NEHÒ) line, were deployed at oyster farms in Rhode Island and New Jersey for performance evaluation. Replicate bags of each line were stocked and maintained according to …

Impacts Of Utilizing Reverse Osmosis Concentrate On Mashing, Fermentation, And Water Use In Bourbon Whiskey Production, Ryan C. Sarhan

Theses and Dissertations--Biosystems and Agricultural Engineering

This thesis addresses the feasibility of reusing reverse osmosis concentrate (ROC) in the bourbon whiskey fermentation processes. Initial work compared laboratory-scale mashing and fermentation methods, demonstrating that simultaneous saccharification and fermentation reliably reflects industrial-scale processes, with lower complexity and process time. Building upon this, laboratory and distillery-scale experiments demonstrated that reusing ROC in the mashing and fermentation steps does not negatively impact ethanol yields. ROC produced by systems with a water softener was found to significantly increase mash rheology, suggesting a need for potential process adjustments. Softened ROC also altered the production of flavor-influencing volatile congeners. Under worst case conditions, …

Development Of Non-Destructive Methods For The Detection And Quantification Of Gluten Sources In Foods, Adewale Abiola Oloyede

Theses and Dissertations--Biosystems and Agricultural Engineering

Cross-contamination of food with gluten-rich grains such as wheat, barley, and rye remains a significant challenge in gluten-free food production, posing health risks to individuals with gluten-related disorders. Traditional detection methods are often time-consuming and labor-intensive, highlighting the need for rapid and reliable alternatives. This study investigates the use of hyperspectral imaging (HSI) combined with machine learning (ML) and deep learning (DL) techniques for the detection and quantification of gluten contamination in grain-based foods through three main approaches: (i) classification of gluten source contaminants in gluten-free flour, (ii) quantification of gluten content from wheat, rye, and barley flours, and …

Inactivation Kinetics Of Escherichia Coli And Listeria Monocytogenes In Edible Insects, Precious Aduloju

Graduate Theses, Dissertations, and Problem Reports (ETD)

Edible insects are emerging as sustainable and nutritious alternatives to conventional protein sources. However, concerns about food safety, particularly the presence of pathogenic bacteria such as Escherichia coli and Listeria monocytogenes, remain a barrier to consumer acceptance and industrial use. This study evaluated the effectiveness of thermal processing in inactivating E. coli, L. monocytogenes, and their non-pathogenic surrogates (E. coli JM109 and Listeria innocua) in both fresh and dehydrated forms of Tenebrio molitor (mealworm) and Acheta domesticus (cricket). It also evaluated the influence of insect species, moisture content, and temperature on microbial inactivation. A microbial challenge …

Comparison Of Compositional Characteristics Of Protein Extracted From Spent Hemp Seed Cakes By One-Step Defatting With Organic Solvents Followed By Isoelectric Solubilization Precipitation Using Strong And Weak Acids, Miah Nicole Gathman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Hemp seed cakes (HSC) are the byproduct of pressing hemp seeds for oil and are a significant agricultural waste product, with hundreds of tons produced annually. These nutrient-rich cakes have potential for sustainable applications in animal feed and food products. However, they could offer even greater value to the food industry through further extraction of the lipids and separation of the proteins they contain. Protein is a key nutritional component and companies are seeking cost-effective, time-efficient processes to concentrate protein from underutilized resources like HSC. Hexane (HEX) is a common solvent used in one-step defatting processes but may cause issue …

Comparative Evaluation Of Fungal Strains For The Bioprocessing Of Soybean Hulls Using Cheese Whey As Fermentation Medium, Ruchita Bhattarai

Electronic Theses and Dissertations

Globally, soybean is the most widely cultivated oilseed crops, and serve as the primary source of cooking oil, contributing to around 50% of global oilseed production. During the industrial processing of soybean oil, a significant amount of soybean hull (SH) is produced, which makes up about 8% of the grain yield, resulting in approximately 18–20 million tons of hulls, one of the largest by-products in the soybean industry. The hulls have limited commercial value and are primarily used as fiber additives in dairy cattle feed, but a large portion is still discarded as agricultural waste. Similarly, cheese whey (CW), a …

Perceptions Of Plant-Based Meat And Cultured Meat Within The Northern Great Plains Region, Donald Chase Stehly

Dissertations and Theses

Conventional meat consumption derived from livestock farming is one of the leading causes of greenhouse gas emissions and environmental degradation on our planet. Substituting conventional meat products with “meat alternatives” such as plant-based meat or cultured meat would drastically decrease greenhouse gas emissions, reduce land and water pollution, and decrease land and water usage. However, it is necessary to first gauge how people feel about eating plant-based meat and cultured meat before it is possible to discern the magnitude of environmental benefits that occur with a significant dietary change such as this. By administering a questionnaire to over 400 participants …

An Economic And Production Analysis Of Seaweed Farms In California And The Pacific Northwest, Brian Donovan

Cal Poly Humboldt theses and projects

Since the early 2010s, the seaweed aquaculture industry has steadily expanded in the United States, with states like Alaska, Maine, Hawaii, and Connecticut leading the way in the development of this emerging sector. However, information gaps remain concerning certain aspects of the domestic seaweed aquaculture industry. The purpose of this study was to examine the status of the seaweed aquaculture industry along the West Coast of the United States; specifically in the states of California, Oregon, and Washington. Seaweed farmers in these states were invited to voluntarily complete surveys asking important production, economic, and commercial questions regarding their operations. Data …