Food Science Commons^™

Specific Bacteria In Commercial Cheddar Cheese Can Cause Rubbery Texture And Poor Taste, Jordan Bond

Research on Capitol Hill

Unexpected pH changes often lead to a rubbery texture, off flavor and poor taste in commercially produced Cheddar, negatively affecting the quality of the cheese. Use of fast-acid producing (thermophilic) starter cultures in cheese manufacture is becoming common. 

Our goal was to discover the cause(s) for this pH variation. Knowing what causes pH changes will save Utah cheese manufacturers’ money, allowing them to pass the savings on to consumers and reduce waste. We posit that excessive use of fast acid producing thermophilic bacteria (S. thermophilus) can be the cause for pH variation.

Consumer Acceptance Of Gene-Edited Food: The Role Of Knowledge, Trust, And Information, Anubrata Deka, Syed Imran Ali Meerza, Amalia Yiannaka

Cornhusker Economics

The research aims to assess consumer preferences and attitudes toward CRISPR applications in the food sector and estimate consumer willingness to pay for a food product developed using CRISPR technology to enhance food safety and confer health benefits. Additionally, the research assesses the impact of information provision on perceptions, attitudes and willingness to pay. Specifically, we consider the potential effect of both the nature of information provided (i.e., whether it emphasizes the differences between GM and CRISPR technology or not) and the delivery format (i.e., text versus video) used to present content-equivalent information. In this context, we also assess consumer …

Effect Of Multispecies Swards On The Fat Composition And Oxidative Stability Of Milk From Dairy Cows In Mid-Late Lactation, Samuel Rapisarda, Kate M. Mccarthy, Tommy M. Boland, Helen Sheridan, Frank J. Monahan, Finbar J. Mulligan, Graham O'Neill, Nissreen Abu-Ghannam

Articles

Multispecies swards have been recognized as more sustainable than traditional ryegrass systems, in addition to providing a range of phytochemicals to the ruminant diet. In this regard, polyphenols may be linked to higher levels of bioactive fatty acids in milk and enhanced nutraceutical properties in dairy products. This study compares the fat composition and oxidative stability of milk produced by cows fed on multispecies swards (MULTI) with milk from two conventional swards [a perennial ryegrass monoculture (PRG) and a mixture of perennial ryegrass and white clover (PRG + WC)] during the Irish summer. Milk from cows fed on MULTI had …

Lisa Rogers, Lisa Rogers, Institute Of Child Nutrition

Oral History Project (all interviews)

Lisa Rogers is a native of of Tennessee. Lisa’s professional journey includes roles in advertising, library services, and recruitment prior to getting into child nutrition. Lisa joined the Institute of Child Nutrition as a Library Specialist, eventually becoming the Associate Director of the Training Division. Lisa retired on June 30, 2023.

Tailor-Designed Oxalic Acid-Crosslinked Poly(Vinyl Alcohol)/Chitosan Biodegradable Films For Active Food Packaging Applications, Reem Hazem Fathy Anwar Elaasar

Theses and Dissertations

Food packaging plastic waste is posing great threats to ecosystems, human health, and the planet's overall sustainability; therefore, research has been directed towards the fabrication of biodegradable food packaging materials. In this study, active and biodegradable oxalic acid (OA) crosslinked poly(vinyl alcohol) (PVA)/chitosan (CS) composite films of different weight ratios were synthesized via the solvent casting technique and their food packaging properties were investigated. Owing to its water resistance and antibacterial superiority, the composite film with the ratio of OA chemically crosslinked PVA/CS 80:20 was elected to be coated with green tea extract (GTE) to ameliorate its antibacterial and antioxidant …

Postharvest Melatonin Application Attenuates Browning, Delays Softening, And Maintains The Antioxidant Potential Of Jackfruit Bulbs, Jashanpreet Kaur, Zora Singh, Muhammad Sohail Mazhar, Hafiz Muhammad Shoaib Shah, Eben Afrifa-Yamoah, Andrew Woodward

Research outputs 2022 to 2026

Although the impact of postharvest melatonin (MLT) application in extending the storage life of horticultural produce has been widely studied, its effect in jackfruit remains unknown. This investigation evaluates the influence of MLT dip application (0, 0.05, 0.1, and 0.2 mM) on browning, softening and oxidative stress in cold-stored jackfruit bulbs over a period of 20d. All MLT treatments reduced browning index and oxidative stress, while activities of browning-related enzymes were comparatively lower in the 0.1 mM MLT treatment. Treatment with 0.2 mM MLT maintained elevated levels of antioxidants as compared to control. Higher bulb firmness, total pectin and cellulose …

Prospects For Enriching A Balanced Diet Of Fish Using Proteins And Enzymes From The Fungus Aspergillus Oryzae, Khusan N. Niyozov, Kuchkor O. Dodaev, Zakhro R. Akhmedova, Munavvar A. Yakhyayeva

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of the work is to create a technology for producing protein-rich compound feed that improves digestion processes and enriches the composition of balanced fish feed. The prospects for enriching a balanced fish diet are achieved by using proteins and enzymes of Aspergillus Oryzae fungi. The fungi produced an enzyme preparation containing protease, α-amylase. The preparation was tested for converting locally produced fish feed with an increased carbohydrate content of up to 77%, respectively, with a reduced protein content of 14.5-16.5%, while creating, for example, a favorable pH value. It was found that the activity of the α-amylase enzyme, …

Understanding The Relationship Between Food And Connection To God, Angela M. Hall

Doctoral Dissertations and Projects

A person’s relationship with God is a personal one, as is the choice of the food we eat. Today we see more and more people struggle with unhealthy relationships with food. And our relationship with food affects more than just our physical health. Food and diet can play a role in how we hear from God. The present qualitative study aimed to understand the relationship between food and connection to God. Specifically, this study aimed to explain lived experiences with food and if diet affected connection to God. A total of twelve Christian, adult men and women participated in 1:1 …

Antidiabetic Properties Of Prickly Pear (Opuntia Ficus-Indica) Fruit Extract, Kenzy Aidan Joseph Mckay

The Undergraduate Research Journal

Diabetes mellitus is a metabolic disorder that claims 1.5 million lives annually. Opuntia ficus-indica, commonly known as the prickly pear, has been commonly used in traditional folk medicine for its hypoglycemic properties. It has been claimed that it has antimicrobial and antioxidant properties as well. The plant is native to Mexico and is commonly found in the middle east and India and folk medicine from all of these areas have been using prickly pear medicinally for years. To test these claims an extract of locally sourced Opuntia ficus-indica was prepared using the flesh and seeds of the fruit. The …

Exploring Single Cell Microbial Protein As A Sustainable Fishmeal Alternative In Yellowtail Kingfish (Seriola Lalandi) Diets: Impacts On Health And Gut Microbiome, Luke Pilmer, Lindsey Woolley, Alan Lymbery, Chinh Dam, Abigail Elizur, Md Javed Foysal, Gavin Partridge

Fisheries Research Articles

Background

With the global expansion of aquaculture and the increasing demand for fish meal, identifying appropriate and sustainable alternative protein sources for aquafeeds has become essential. Single-cell protein (SCP), derived from methanotrophic bacteria, presents a promising alternative by converting methane into protein, potentially addressing both the need for alternative protein sources and reducing industrial greenhouse gas emissions. This study aimed to evaluate the effects of different levels of SCP inclusion (0%, 25%, 50%, and 75% fish meal replacement) on the health, gene expression, and gut microbiome of yellowtail kingfish (YTK, Seriola lalandi) following a 35-day growth trial.

Results

The …

S-Methyl-L-Cysteine Sulfoxide And Glucosinolate Levels In Australian-Sourced Brassica Vegetables Before And After Domestic Cooking, Caroline R. Hill, Armaghan Shafaei, Mary C. Boyce, Liezhou Zhong, Lois Balmer, Joshua R. Lewis, Jonathan M. Hodgson, Lauren C. Blekkenhorst

Research outputs 2022 to 2026

Currently no data exists on S-methyl-L-cysteine sulfoxide (SMCSO) levels in Australian-sourced vegetables and limited data exists for glucosinolates. The effect of various cooking methods on the retention of SMCSO and glucosinolates in Australian-sourced vegetables is also limited. This study measured SMCSO and ten glucosinolates in a selection of Australian-sourced Brassica vegetables, both raw and after steaming. We additionally measured SMCSO and glucosinolate levels in broccoli after microwaving, stir-frying and boiling. SMCSO contributed greater dry weight (0.6–1.9 %) than total glucosinolates combined (0.3–1.2 %) in these raw cruciferous vegetables. SMCSO levels from highest to lowest were: Brussels sprouts > broccoli > red cabbage …

Optimizing Ethanol-Water Cosolvent Systems For Green Supercritical Carbon Dioxide Extraction Of Muscadine Grape Pomace Polyphenols, Arda Tuhanioglu, Sumanjot Kaur, Gabriel Laquete De Barros, Safoura Ahmadzadeh, Renee Threlfall, Ali Ubeyitogullari

Food Science Faculty Publications and Presentations

This study evaluated the ethanol-water modified (50%, v/v) supercritical carbon dioxide (SC-CO2) for the extraction of polyphenols from muscadine grape (Vitis rotundifolia Michgx.) pomace and compared with conventional solvent extractions (ethanol-water and HCl-methanol). The process was optimized with a central composite response surface design consisting of three levels of three independent variables: pressure (20-40 MPa), temperature (40-60 degrees C), and cosolvent concentration (5-15%) to maximize three responses: total phenolic content (TPC), total flavonoid content (TFC), and resveratrol yields. The optimal conditions were determined as 20 MPa, 60 degrees C, and 15% cosolvent concentration with TPC, TFC, and resveratrol yields of …

Effects Of A Commercial Jerky Cure And Seasoning And A New Spice Mixture On The Weight Loss And Water Activity Of Jerky Prepared From Deboned Asian Carp Meat, Kayla West, Changzheng Wang

Posters-at-the-Capitol

Effects of a commercial jerky cure and seasoning and a new spice mixture on the weight loss and water activity of jerky prepared from deboned Asian carp meat.

Kayla West, Olusoji Ayoola and Changzheng Wang

College of Agriculture, Health Science and Natural Resources, Kentucky State University, Frankfort, KY 40601

Preparing jerky from deboned Asian carp meat has the potential to expand the market for Asian carp meat. The objective of this experiment was to determine the effect of a commercial cure and seasoning mix and a new spice mixture on the weight loss and water activity of jerky prepared from …

Addition Of Sucrose Improved Moisture Retention In Jerky Prepared From Deboned Asian Carp Meat, Rhiana Lee, Changzheng Wang

Posters-at-the-Capitol

Addition of Sucrose Improved Moisture Retention in Jerky Prepared from Deboned Asian Carp Meat.

Rhiana Lee*, Olusoji Ayoola, Changzheng Wang

College of Agriculture, Health Science and Natural Resources, Kentucky State University, Frankfort, KY 40601

Deboned Asian carp meat can be used to make a jerky product to increase its marketability. The objective of this study was to determine the effect of sucrose addition on the drying rate and the water activity of the final product. Asian carp harvested from Lake Barkley was deboned through a drum with 3 mm orifice by Two Rivers Fishery. The deboned meat was divided into …

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 …