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Identification Of Critical Points For Bacterial Contamination In The Microbrewery Environment, Alex Ryan Thompson

All Theses

There are 8,884 craft breweries producing over 23 million barrels of beer in the United States as of 2020. These 23 million barrels of craft beer account for 12.3% of the United States beer consumption in 2020. The American craft beer industry is substantial and needs to protect its product from bacterial contamination.

Overall, beer is a microbially stable product. Beers pH, ethanol levels, CO₂ concentrations, the presence of hop-derived antimicrobial compounds, and low levels of O₂ make beer a highly unfavorable environment for most bacterial species. Furthermore, the brewing process, which involves heat treatments and chemical sanitizers …

To The Window, To The Wall: Improving Environmental Monitoring Protocols, Sarah Jones

Graduate Theses and Dissertations

Detecting microorganisms on environmental surfaces via an environmental monitoring (EM) program is part of a preventive food safety culture. Environmental monitoring should 1) verify that food safety plans are reducing cross-contamination risk from surfaces to food, 2) pinpoint microbial niches, and 3) prevent the transmission of pathogens. Environmental monitoring programs utilize EM tools, such as sponges, to sample food contact and non-food contact surfaces. However, EM tool selection is determined by the individual food firm. This dissertation evaluated and characterized factors influencing EM program effectiveness in the food industry. Specifically, this dissertation focuses on the release of microorganisms from EM …

Arkansas Fresh-Market Blackberries: Identifying Unique Attributes And Harvest Practices That Impact Marketability, Andrea Lea Myers

Graduate Theses and Dissertations

Fresh-market blackberries (Rubus subgenus Rubus) are sold worldwide and have attributes that appeal to consumers. The delicate-nature of the fruit requires hand harvesting, and minimal handling of the fruit postharvest. Objectives of this research on Arkansas fresh-market blackberries was to 1) identify the unique attributes 2) determine the best handling practices to increase postharvest quality, and 3) evaluate the potential of soft robotic gripper for harvesting. For the first objective, blackberry genotypes were harvested from the University of Arkansas System (UA System) Division of Agriculture Fruit Research Station in Clarksville, AR. Nineteen genotypes were harvested in 2020, eight genotypes were …

Effects Of Cognitive Style On Food Perception And Eating Behavior, Thadeus Lyndon Beekman

Graduate Theses and Dissertations

Within the fields of psychology, notably cultural psychology, the analytic-holistic cognitive style theory has been introduced, developed, fine-tuned, and validated across a wide range of situations, stimuli, and populations. This research, combined with recent applications of the analytic-holistic theory, suggests that the differences in analytic or holistic tendencies of individuals in food, sensory, and consumer tests can impact food perception and associated behaviors. This dissertation aimed to investigate the impact of analytic-holistic cognitive styles of consumers in food situations. The first objective to accomplish this goal was to conduct exploratory research to identify if and where the analytic-holistic theory may …

Inactivation Of Salmonella In Black Peppercorn By Fluidization With Hydrogen Peroxide Vapor, Edel Summers

Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research

The purpose of the present study was to assess the effectiveness of hydrogen peroxide vapor (HPV) at inactivating Salmonella inoculated in whole black pepper when used as fluidizing gas media. HPV treatment was conducted at two different temperatures (45°C and 60°C) and two dwell times (30 min and 60 min). Microbial reduction and residual hydrogen peroxide were measured at three storage times: 0 h (immediately after treatment), 24 h and 48 h post-treatment. The effect of HPV on the quality of whole black peppercorn was evaluated 48 h post-treatment based on changes in piperine content, total phenolics, antioxidant activity, total …

Editorial: Fat Metabolism And Deposition In Poultry: Physiology, Genetics, Nutrition And Interdisciplinary Research, Volume I, Sami Dridi, Craig W. Maynard, Jie Wen, Elizabeth Gilbert

Poultry Science Faculty Publications and Presentations

Editorial on the Research Topic: Fat metabolism and deposition in Poultry: Physiology, Genetics, Nutrition and Interdisciplinary Research, Volume I

Potato Processing In The Home: Sustainability And Nutritional Impacts, Aubin Payne

Biological and Agricultural Engineering Undergraduate Honors Theses

Potatoes are the world's fourth most consumed crop. Their versatility and long shelf-life make them a staple food for millions of people worldwide. Still, the increasing consumption of highly processed potato products in developed countries has damaged the public's appreciation of potatoes as a valuable source of essential nutrients. Additionally, as public awareness of environmental sustainability increases, the average consumer is more likely to value processing methods that mitigate environmental damage.

Researchers simulated several home storage and processing conditions to find out how nutrition and environmental impact are affected by the home processing timeline. Then, a nutrient analysis, life cycle …

A Broken Market: Can Increased Access To Broken Rice Decrease Food Insecurity In Haiti?, Matthew Greer Richardson, Lawton L. Nalley, Alvaro Durand-Morat, Philip G. Crandall, Andrew Scruggs, Lesly Joseph, Jerome Chouloute, Wei Yang

Food Science Faculty Publications and Presentations

Haiti is a unique rice market in the sense that, despite the high poverty rates and dependency on rice as a staple, it relies on imports (80% of total consumption) of high-quality milled rice for which it pays a premium price. Haiti requires that all imported rice have a maximum of 4% broken kernels, which results in Haiti importing one of the most expensive non-fragrant long grain rice in the world. This study implements a non-hypothetical field experiment (300 observations) to elicit which rice attributes Haitians valued as revealed by their purchasing behavior in an open-air market setting. Specifically, we …

An Investigation Of Social Ecological Barriers To And Facilitators Of Wic Farmers Market Nutrition Program Voucher Redemption, Renata Blumberg, Emily Fowler, Yeon Bai, Pankaj Lal, Alyssa Smolen, Ilana Dubrovsky

Department of Nutrition and Food Studies Scholarship and Creative Works

In the United States, many communities lack sufficient access to fresh produce. To improve access to fresh fruits and vegetables, the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) provides eligible participants vouchers through the Farmers Market Nutrition Program (FMNP) that can be redeemed directly from farmers at markets or farm stands. However, FMNP voucher redemption rates in New Jersey remain lower than those in neighboring states. This article used the social ecological model to examine differences between FMNP participants who redeem vouchers (Redeemers) and those who do not (non-Redeemers) in the areas of: produce procurement practices and …

Effects Of Thermal Processing On Peach Puree Of Different Cultivars: Analysis Of Biochemical Alteration, Non-Enzymatic Browning Reaction, And Color Changes, James Hayes

All Theses

The effects of pasteurization temperature and time on the change in seven peach puree variables over a 6-week accelerated shelf-life test (35°C) were evaluated. The variables of interest were three color measures [ L* (lightness), a* (redness), and b* (yellowness)]; two brown pigment measures [spectrophotometric absorption at 420 nm (Browning Index) and 443 nm (Hydroxymethylfurfural)]; °Brix; and pH). Puree was collected from three different cultivars (2 freestone and 1 clingstone) and puree samples from each cultivar were subjected to 20 combinations of pasteurization temperatures (70°C, 80°C, 90 °C, 100°C) and same hold times (0 minutes, 1 minute, 3 minutes, 5 …

Effect Of Refrigerated Storage On Meat Quality, Jillian Reid Richardson

All Theses

Maintaining meat quality during cold temperature storage is an important goal for increasing consumer satisfaction and reducing food waste. Following a literature review on the importance of cold meat storage, a study was conducted as a part of Electrolux refrigerator research and development. Chicken breast and beef sirloin filets were stored at -2°C, -5°C, and -18°C and monitored for quality changes over a 7-day period. Temperature fluctuations and relative humidity data were monitored automatically by sensors. Meat quality was evaluated by measuring water activity, moisture content, pH, colorimetry, sensory, and drip loss. Microbial plate counts were used to monitor the …

Physical And Microbiological Characteristics Of Pickled Eggs From Japanese Quail (Coturnix Coturnix Japonica) Of The Pharaoh Variety, Adair Hoover

All Theses

The quality and microbiological characteristics of quail eggs were evaluated after eggs were pickled in different vinegar brine solutions. Pickling food in vinegar is one of the oldest preservation methods; however, little research has been conducted on pickled quail eggs. Commercial quail eggs obtained from a local producer were boiled, peeled, and placed into various pickling solutions and held for 24 or 48 hours at room temperature. After the holding period, eggs were removed from the solutions, weighed, and tested for pH, water activity, texture, and color. A second experiment was conducted to determine the effects of various pickling solutions …

Preparation Of Proteins And Peptides From Heat-Stabilized Defatted Rice Bran Via Solid State Fermentation And Investigating For Skin Health, Ali A. Bisly

Graduate Theses and Dissertations

Heat-stabilized defatted rice bran (HDRB) is an abundant and inexpensive agro-industrial by-product of rice milling and rice oil extraction process. Furthermore, HDRB is a potential source of proteins. However, the direct protein extraction has low yield of protein due to the impact of heat stabilization and oil extraction process which made the HDRB proteins bound and interact with other components. This research is based on using solid-state fermentation (SSF), which is a natural and cost-effective approach to facilitate protein extraction from HDRB using Bacillus subtilis (natto) Takahashi as a microorganism.

Response surface methodology (RSM) analysis was used with Box-Behnken design …

Assessment Of The University Of Rhode Island's Dining Halls And Student Perceptions Of On-Campus Dining, Maria Cherry

Senior Honors Projects

University dining halls are understudied food environments that affect student diet quality. This study (1) assessed dining hall offerings at the University of Rhode Island (URI) using the Partnership for a Healthier America’s Healthier Campus Initiative (PAHA) criteria for healthier campus food environments and (2) evaluated student perceptions of the dining hall through a campus-wide survey (n=165). We evaluated breakfast, lunch, and dinner using spring cycle menus (16 weeks in 2019 and 4 in 2021) from two full-service dining halls totaling 29 meals in 2019, and 84 meals in 2021 to determine adherence with PAHA criteria for availability of: 1) …

Calcium Intake Among Parents And Caregivers Of Children With A Milk Allergy Or Intolerance : A Comparative Analysis, Ilana Dubrovsky-Razam

Theses, Dissertations and Culminating Projects

Food allergies have become a global epidemic, affecting over 10% of the general population and 8% of children worldwide. Eliminating or limiting a food group from the diet can have adverse effects on micronutrient consumption. Milk allergies, for instance, can influence the amount of calcium consumed in the diet, particularly when limiting or excluding milk/milk-containing products from the diet. As milk products tend to be a primary source of dietary calcium, a milk allergy can serve as a barrier to meeting daily calcium needs.

Previous literature has analyzed the influence parents and caregivers have on their children’s diet, however, there …

Variations In Consumer Rejection Thresholds Of Water Samples Including Mixed-Berries Flavors, Kathryn Mccullough

Graduate Theses and Dissertations

Functional flavored water has emerged as a major space in the beverage industry in recent years. However, no research has explored the point that consumers begin to reject a specific flavor concentration within a flavored water matrix (i.e., a consumer rejection threshold). The first part of this thesis aimed to determine the consumer rejection thresholds of mixed-berry flavors in both sweetened and unsweetened water samples and examine the effects of demographics, food neophobia status, and personality traits on the consumer rejection thresholds. The second part of this thesis aimed to distinguish and compare consumer rejection threshold methodologies with and without …

The Impact Of Dietary Protein Supplementation As Part Of A Time Restricted Feeding Eating Pattern On Sleep, Mood, And Body Composition In Adults With Overweight Or Obesity, Rebecca L. Bowie

Graduate Theses and Dissertations

Obesity in the United States continues to increase, and effective, long-term weight loss strategies are limited. Time restricted feeding (TRF) is a dietary intervention that has potential to serve as an effective long-term weight loss strategy, however more data is needed to establish the effectiveness of a TRF eating pattern on obesity and its related health outcomes. To our knowledge, manipulation of macronutrient composition during TRF intervention and the effect of TRF on sleep and mood have not been studied. Therefore, the objective of this study was to determine the effect of protein supplementation during TRF on mood, sleep, and …

A Mixed Methods Approach To Context Specific Curriculum Design For Very Small And Small Strawberry Growers In The Southeastern United States, Thomas A. Yeargin

Graduate Theses and Dissertations

Outbreaks of foodborne illness due to fresh produce are a continued threat to both the publichealth and the economy in the United States. Though there are many factors which influence the perpetuation of foodborne pathogens, the inability of the food industry to curtail this issue indicates systemic failure of interventions aimed at improving food safety practices. In this dissertation, we detail the efforts made over the past few decades to provide training to food producers and food handlers as well as recommendations that have been made for improvement based on these studies. By borrowing from more advanced fields of study …

Essential Amino Acid (Eaa) Regulation Of Skeletal Muscle Protein Turnover With Age, Mary Komp

Graduate Theses and Dissertations

Skeletal muscle (SM) is vital for both long term health and quality of life. Recent research suggests an increase in catabolic signals with age triggers pathologic conditions, such as sarcopenia. Although results from in vitro studies model how EAA can regulate muscle protein synthesis (MPS), the relevance of these models to muscle protein breakdown (MPB) and the presence of physiological EAA concentrations remains to be established. Therefore, the objective of this study was to determine the effects of a low, normal, and supra physiological dose of EAA (0.2, 1.0, and 3.0 x EAA) in a young (passages 2-10) and aging …

Addressing Public Perceptions About Cell-Based Meat And Cellular Agriculture Through Metaphors, Yvette Emma Hubbard

English Theses & Dissertations

Today’s food movement places organic, holistic, and natural foods as priority. The idea aims for better human health, a farm-to-table community, and environmental sustainability. Soon a new meat alternative will become part of the ongoing food movement. What is it? Cell-based protein. It is a protein alternative to livestock protein. It is real protein from a real breathing animal. Cell-based beef for example is grown in a lab with cells from a living cow that does not have to die or be slaughtered. It is destined to become the new protein architecture on the horizon. Parts of this paper are …

Evaluating The Microbial Quality And Use Of Antimicrobials In Raw Pet Foods, Leslie Pearl Cancio

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

Raw meat-based diets (RMBDs) are emerging pet foods that pose food safety risks because of the potential presence of pathogens that could cause illness to humans. In this research, the microbial quality of select RMBD products sold by pet food companies online and the use of chemical antimicrobials to reduce the microbial load in chicken liver, a common RMBD ingredient, were evaluated.

Ground meat blends and livers from four animal species (beef, pork, chicken, turkey) were purchased from four online companies that delivers directly to consumers through parcel businesses. Products were procured at three different times during one year and …

Development And Characterization Of Physicochemical Properties And Consumer Perception Of Gluten-Free Oat-Based Snack Bars Containing Orange Peel, Andrea R. Muela Negrete

LSU Master's Theses

Orange peel (OP) is a major byproduct from orange juice production, and is a good source of fiber and flavonoids, particularly nobiletin. Nobiletin has been reported to exhibit pharmacological activities including anti-inflammation and antioxidation. Incorporating orange peel into food products would harness economic benefit of this industrial byproduct and support a sustainable food chain. This study was performed to evaluate consumer perception of gluten-free oat-based snack bars (GFOSBs) containing orange peel.

In the first study three GFOSBs were formulated to contain 17%, 20%, and 23% orange peel by weight. Consumers (N=103) evaluated GFOSBs for sensory liking (9-point hedonic scale) and …

A Cookbook For The Trendy Chef, Katja Roberts

Honors Program: Senior Projects (Public)

A Cookbook for the Trendy Chef contains a compilation of recipes which fall under 8 major food trends for 2021. These trends were determined to be vegan, keto, and gluten-free diets, along with “viral foods”, easy recipes, functional foods, international flavors, and comfort foods. These trends were selected based on predictions made by the Institute of Food Technologists (IFT) and the Washington Post.

Comparison Of Flavonoid Intake Assessment Methods Using Usda And Phenol Explorer Databases: Subcohort Diet, Cancer And Health-Next Generations—Max Study, Fabian Lanuza, Nicola P. Bondonno, Raul Zamora-Ros, Agnetha Linn Rostgaard-Hansen, Anne Tjønneland, Rikard Landberg, Jytte Halkjær, Cristina Andres-Lacueva

Research outputs 2022 to 2026

Flavonoids are bioactive plant compounds that are widely present in the human diet. Estimating flavonoid intake with a high degree of certainty is challenging due to the inherent limitations of dietary questionnaires and food composition databases. This study aimed to evaluate the degree of reliability among flavonoid intakes estimated using four different approaches based on the two most comprehensive flavonoid databases, namely, United States Department of Agriculture (USDA) and Phenol Explorer (PE). In 678 individuals from the MAX study, a subcohort of the Diet, Cancer and Health-Next Generations cohort, dietary data were collected using three 24-h diet recalls over 1 …

Value-Added Opportunities For Tomato And Peach Seeds, Valerie Michelle Lavenburg

Master's Theses

The food industry is increasingly concerned with operational sustainability and food waste reduction. In the United States, the tomato industry was worth $1 billion in 2020, and tomatoes are currently ranked second as the most consumed vegetable after potatoes. Tomato processors have striven to valorize pomace by-products, which contain seeds with valuable compounds such as 45% fiber, 30% oil, and 26% protein. The U.S. peach industry, which was worth $599 million in 2017, is also looking for alternative ways to utilize their seeds, made up of 52% oil. Both tomato and peach seeds are rich in bioactive compounds such as …

The Rise Of Concentrated Animal Feeding Operations, Their Effects, And How We Can Stop Their Growth, Andrea Prisco

Dickinson Law Review (2017-Present)

Dramatic changes in the agricultural industry over the last century have led to the rise of concentrated animal feeding operations– industrial facilities that raise a large number of animals in confined spaces. Animals raised in these facilities suffer from poor quality of life and abuse. For humans, these facilities have had adverse effects on the environment and public health, but they are also associated with high productivity and low food costs. This Comment analyzes the effects of concentrated animal feeding operations on animal well-being, the environment, and public health. This Comment also analyzes current federal legislation that helps combat the …

Vulnerable Vegetables And Efficient Fishers: A Study Of Primary Production Food Losses And Waste In Ireland, Tracey O'Connor, Rosanna Kleeman, Jennifer Attard

Publications

From 2022, the European Union Waste Framework Directive (WFD) requires member states to report annual food waste from each food supply chain stage. Comprehensive food losses and waste (FLW) data can be challenging to obtain for the primary production stage, i.e., farming and fishing. However, this information is vital in developing FLW mitigation actions appropriate to each country. This study describes the nature and extent of FLW from primary production in Ireland, using methods approved for WFD reporting. Causes of FLW and FLW as a proportion of total production were determined through interviews with Irish primary production stakeholders and using …

Influence Of Roasting On The Proximate, Functional And Sensory Properties Of Jackfruit Seeds And Amaranth Grain Composite Complementary Flours, Agnes Nabubuya, Robert Mugabi, Abraham Kaggwa, Paddy Ainebyona, Rukia Nalugya

Tanzania Journal of Science

This study evaluated the effects of roasting on jackfruit seeds (JFS) and amaranth grain composite complementary flours. Eleven formulations were used for the study. The moisture, crude protein, crude fat, crude fibre, crude ash and carbohydrate contents varied from 6.5 to 8.7%, 10.66 to 20.9%, 0.93 to 5.98%, 4.46 to 10.2%, 2.6 to 3.76% and 51.3 to 71.7%, respectively. The water absorption capacity (WAC), water solubility index (WSI), oil absorption capacity, swelling power (SP) and bulk density (BD) ranged from 238.9 to 360.5%, 3.9 to 12%, 107.4 to 200.6%, 13.3 to 45.9%, and 0.5 to 0.7 g/mL, respectively. Increasing amaranth …

Assessment Of Soil Quality Along The Proposed Main Road Through Ngorongoro And Northern Serengeti, Tanzania, Othman C. Othman, Abiud L. Kaswamila, Kjetil Bevanger, Augustino Mwakipesile, Kelvin Haule, Emilian Kihwele, Gloria Summay, Emmanuel Gereta

Tanzania Journal of Science

A new road through northern Serengeti National Park is proposed to be built. The purpose of this study was to collect baseline data on soils along the route of the proposed road before its construction. The physicochemical properties were used to characterize the soil before the construction of the proposed road. Levels of soil macro-elements mainly potassium (K), calcium (Ca), magnesium (Mg) and sodium (Na), and physicochemical properties: electrical conductivity (EC), pH, organic carbon (OC), soil organic matter (SOM), total nitrogen (TN), cation exchange capacity (CEC), phosphorus (P), aluminium (Al) were determined. Also, heavy metals: cadmium (Cd), chromium (Cr), copper …

Evaluation Of Pasting Properties Of Plantain, Cooking Banana, Selected Cereals And Their Composites As Indicators For Their Food Values, Wasiu B. Agbaje, Oluseye O. Abiona, Shola H. Awojide, Luqman A. Azeez, Adeniyi S. Tayo

Tanzania Journal of Science

The pasting properties of unripe plantain, unripe cooking banana, some selected cereals and their composite flours were investigated in relation to their food values. Each of the samples was cleaned, air–dried and pulverized to form the native flours which were mixed in different proportions to form the composite flours. Soft doughs were prepared from the flours and subjected to textural evaluation. The adjudged best from each set was analysed using Rapid Visco–Analyser followed by determination of their proximate composition and functional properties. The results showed that the breakdown viscosity (cP) of each of the composite flours was less than 920.50 …