Development Of Essential Oil Incorporated Active Film Based On Biodegradable Blends Of Poly (Lactide)/Poly (Butylene Adipate‑Co‑Terephthalate) For Food Packaging Application, 2020 Technological University Dublin
Development Of Essential Oil Incorporated Active Film Based On Biodegradable Blends Of Poly (Lactide)/Poly (Butylene Adipate‑Co‑Terephthalate) For Food Packaging Application, Shubham Sharma, Sandra Barkauskaite, Swarna Jaiswal, Brendan Duffy, Amit Jaiswal
Active packaging improves food safety and quality with the incorporation of certain additives such as antimicrobial agents. The PLA/PBAT films were prepared with two essential oils—eucalyptus oil and cinnamon oil of various concentrations (1%, 5%, and 10% w/w) and characterized their optical and mechanical properties, surface hydrophobicity, chemical composition, and antimicrobial activity. Cinnamon oil composite films were observed as thicker films (88.88 µm) than the eucalyptus oil films (54.46 µm). The highest UV-blocking properties were observed in cinnamon oil films. However, transparency and tensile properties of the cinnamon oil films decreases as the concentration increases ...
High Pressure Processing Of Sous-Vide Lobster (Homarus Americanus) Tails, 2020 University of Maine
High Pressure Processing Of Sous-Vide Lobster (Homarus Americanus) Tails, Sami Ali Humaid
Electronic Theses and Dissertations
Sous-vide and high pressure processing (HPP) are promising techniques in the development of high-quality seafood products. Lobsters are high-value seafood products that are highly susceptible to being overcooked using conventional methods, producing a tough and rubbery texture. Lobsters are usually sold either live or frozen due to their high perishability. The application of sous-vide cooking may provide evenly cooked lobster products with a succulent and juicy texture, while HPP may increase the shelf-life of lobster products without the use of additives. The objectives of this research were to: 1) evaluate the impact of three different sous-vide cooking conditions on physicochemical ...
Characterization And Antimicrobial Activity Of Biodegradable Active Packaging Enriched With Clove And Thyme Essential Oil For Food Packaging Application, 2020 Technological University Dublin
Characterization And Antimicrobial Activity Of Biodegradable Active Packaging Enriched With Clove And Thyme Essential Oil For Food Packaging Application, Shubham Sharma, Sandra Barkauskaite, Brendan Duffy, Amit Jaiswal, Swarna Jaiswal
Bioactive packaging contains natural antimicrobial agents, which inhibit the growth of microorganisms and increase the food shelf life. Solvent casting method was used to prepare the Poly (lactide)-Poly (butylene adipate-co-terephthalate) (PLA-PBAT) film incorporated with the thyme oil and clove oil in various concentrations (1 wt%, 5 wt% and 10 wt%). The clove oil composite films depicted less green and more yellow as compared to thyme oil composite films. Clove oil composite film has shown an 80% increase in the UV blocking efficiency. The tensile strength (TS) of thyme oil and clove oil composite film decreases from 1.35 MPs ...
Effects Of Period And Temperature On Quality And Shelf-Life Of Cucumber And Garden-Eggs Packaged Using Cassava Starch-Zinc Nanocomposite Film, 2020 Kwara State University, Malete
Effects Of Period And Temperature On Quality And Shelf-Life Of Cucumber And Garden-Eggs Packaged Using Cassava Starch-Zinc Nanocomposite Film, Adeshina Fadeyibi, Zinash Delebo Osunde, Mohammed Gana Yisa
Journal of Applied Packaging Research
Nanocomposite film can be used to prolong the shelf-life of fruits and vegetables. This research was undertaken to investigate the effects of packaging period and temperature on the quality and self-lives of cucumber and garden-eggs packaged using cassava starch-zinc nanocomposite film. Hundred grams each of cucumber and garden-eggs were wrapped in a 200× 350 mm size nanocomposite film and low density polyethylene (LDPE) of 2.240± 1.076 × 10-10 gm-1Pa-1s-1 water vapor and 1.568± 0.084× 10-10 gm-1Pa-1s-1 oxygen gas permeability. The products were stored at 10 ...
Life Cycle Assessment Of The Us Beef Processing Through Integrated Hybrid Approach, 2020 University of Illinois at Urbana-Champaign
Life Cycle Assessment Of The Us Beef Processing Through Integrated Hybrid Approach, Shaobin Li, Yuwei Qin, Jeyamkondan Subbiah, Bruce Dvorak
Civil and Environmental Engineering Faculty Publications
Hybrid life cycle assessment (LCA) incorporating process-based and economic input-output (EIO)–based inventory data has been applied in various industries (e.g., wind energy, biofuel). Few hybrid LCA studies have been found in the food industry. This work analyzes the life cycle environmental impacts of the US beef processing industry using process-based and integrated hybrid LCA. The process-based inventory includes all resource inputs and waste outputs associated with a beef processing plant. The EIO-based inventory includes key activities missing in the process-based inventory, such as technical and management service, wood and paper, and industrial equipment. Ten environmental impact categories from ...
Effect Of Long Pasteurization Run Times On Bacterial Numbers In Milk, 2020 Utah State University
Effect Of Long Pasteurization Run Times On Bacterial Numbers In Milk, Brynli Tattersall
All Graduate Theses and Dissertations
This project was funded by the Western Dairy Center to understand how long a milk pasteurizer can be operated before increases in bacterial numbers are observed in the pasteurized milk. While pasteurization kills pathogenic bacteria there are some non-pathogenic bacteria that can survive and have the ability to become attached to the surfaces in the cooling sections of the pasteurizer. Some bacteria can also produce spores that survive pasteurization even if the bacterial cells are killed. Temperatures in the cooling section remain in a range suitable for growth of these heat-tolerant bacteria and can allow germination of bacterial spores. While ...
Heat And Mass Transfer In Parboiled Rice During Heating With 915 Mhz Microwave Energy And Impacts On Milled Rice Properties, 2020 University of Arkansas, Fayetteville
Heat And Mass Transfer In Parboiled Rice During Heating With 915 Mhz Microwave Energy And Impacts On Milled Rice Properties, Deandrae L.W. Smith
Theses and Dissertations
Microwave (MW) heating offers an energy-efficient, fast method to dry high moisture content (MC) parboiled rice to safe storage MC. However, there is limited research that describes the fundamentals of heat and mass transport in rice kernels exposed to MW energy at 915 MHz, the most promising heating frequency for industrialized processing. This information is vital to explain the implications of MW technology on dried rice quality. The overall objective of this study was to develop a microwave heating technology that can sufficiently dry high MC parboiled rough rice kernels in one pass using a 915-MHz industrial microwave system. An ...
Evaluation And Impact Of Food Safety Messages In New Media For Trending Recipes: Savory Jam On Youtube, 2020 University of Maine
Evaluation And Impact Of Food Safety Messages In New Media For Trending Recipes: Savory Jam On Youtube, Alison L. Brodt
Electronic Theses and Dissertations
Home canning has been used as a method of food preservation for hundreds of years. The United States has a regulatory agency known as the National Center for Home Food Preservation (NCHFP), which gives guidelines on canning safely to decrease the risk of foodborne illness. The NCHFP provides tips for fruit jams and jellies; however, savory jam is rising in popularity. Savory jam includes jams with a savory main ingredient, such as tomatoes, bacon, onion, or chili peppers. There are currently no guidelines for safe preparation of savory jams. Research is needed to see if recipes for savory jam are ...
Improving Microbiological Safety Of Low Moisture Food Products Using Radio Frequency And Ethylene Oxide, 2020 University of Nebraska - Lincoln
Improving Microbiological Safety Of Low Moisture Food Products Using Radio Frequency And Ethylene Oxide, Long Chen
Biological Systems Engineering--Dissertations, Theses, and Student Research
Recent foodborne illness outbreaks in US associated with consumption of low-moisture foods (LMF) have heightened concerns of their microbial safety. Salmonella is a pathogen of major concern in LMF due to its ability to persist in low water activity (aw) environments. The disadvantages of existing decontamination technologies for LMF call for novel and efficient intervention technologies. Radio frequency (RF) and ethylene oxide (EtO) were evaluated in this dissertation for improving microbial food safety and quality of LMF. Cumin seeds and inshell hazelnuts were selected as model foods.
It took < 2 min of stationary RF heating to achieve > 5 log reductions of Salmonella in cumin seeds without significant ...
Training Interns In Nutrition And Dietetics: Barriers And Motivators To Being A Preceptor, 2020 University of Colorado at Colorado Springs
Training Interns In Nutrition And Dietetics: Barriers And Motivators To Being A Preceptor, Andrea Hutchins, Jinette Fellows, Donna M. Winham
Food Science and Human Nutrition Publications
Objectives Identify the perceptions and attitudes associated with the preceptor role and incentives that might encourage precepting among nutrition and dietetics professionals in the United States.
Methods A random sample of RDN and NDTR professionals from the Commission on Dietetic Registration credentialed practitioner database were invited to complete an online survey about knowledge, attitudes, and perceptions of the preceptor role. The survey was adapted from previous published instruments and validated via external content review, pretesting and post-test evaluation with pilot respondents.
Results A total of 311 of 2464 invited eligible participants completed the survey, yielding a response rate of 12 ...
The Development Of Virtual Reality As A Tool To Investigate Eating Behavior, 2020 Iowa State University
The Development Of Virtual Reality As A Tool To Investigate Eating Behavior, James Hollis, James H. Oliver
Food Science and Human Nutrition Publications
Objectives: The objective of this study was to a) determine the feasibility of eating in virtual reality (VR) environment while wearing a head mounted display (HMD) and b) determine the effect of eating in a virtual restaurant on food intake, sensory evaluation of the test food and masticatory parameters.
The Representation Of Food-Related Environments In Virtual Reality, 2020 Iowa State University
The Representation Of Food-Related Environments In Virtual Reality, James Hollis, Shelley E. Woodall
Food Science and Human Nutrition Publications
Objectives: Virtual reality (VR) potentially provides an innovative tool for nutrition education/counselling. The objective of this study was to determine the a) sense of ‘presence’ (the feeling of being in a scene) experienced in two food related VR scenes b) capture information regarding the participants experiences in VR.
Authentication Of Red Snapper (Lutjanus Campechanus) Fillets Using A Combination Of Real-Time Pcr And Dna Barcoding, Rachel B. Isaacs, Rosalee S. Hellberg
Food Science Faculty Articles and Research
Red snapper (Lutjanus campechanus) is a historically overfished and highly valued species that is commonly substituted with other fish, such as tilapia, rockfish, and other snapper species. The objective of this study was to assess the ability of real-time PCR to be used as a screening tool to rapidly test commercial fillets for the presence of red snapper, followed by species identification of negative samples with DNA barcoding. A total of 24 frozen, fresh, or thawed (previously frozen) fillets labeled as “red snapper” were tested with real-time PCR, along with 54 fillets from fish that are common substitutes for red ...
Assessment Of Oral Motor Activity Variables During Consumption Of Chocolate Using Surface Electromyography: Effects Of Variation In Cocoa Solid Content, Kara Elizabeth Cook
The aim of this experiment is to assess how a wide range of cocoa content in different types of chocolate samples effects oral motor activity for mastication events, along with the time between consumption and swallowing. A prior study assessed individual oral motor activity using surface electromyography (sEMG) for mastication events while eating four different chocolate samples, and this information was used to determine which aspects of the masticatory process underlie differences in individual chewing behavior as well as whether subjects retain their general characteristic eating behavior across a variety of chocolate samples. The study found that with chocolate samples ...
Effect Of Low Dose Irradiation On Expression Of Genes Involved In Ethylene Biosynthesis Of 'Granny Smith' Apples, Brian Nyakundi
Food Science (MS) Theses
Superficial scald is a physiological disorder characterized by skin browning that appears during or after storage of ‘Granny Smith’ apples. The mechanism for scald development is not fully understood, but it is hypothesized that scald formation is related to increased ethylene production. In apples, low dose irradiation induced ethylene reduction appears to be directly related to prevention of superficial scald. However, the molecular basis of such an irradiation induced effect is not known. In this study, effort was made to better understand the molecular basis of the decrease in ethylene production in apple fruit after treatment with x-ray irradiation. ‘Granny ...
Elucidating Basis Of Rice Discoloration And Developing Prevention Strategies, 2020 University of Arkansas, Fayetteville
Elucidating Basis Of Rice Discoloration And Developing Prevention Strategies, Zeinab Mohammadi Shad
Theses and Dissertations
Economically, discolored rice kernels have less market value, which can seriously impact farm net profit. The reasons for rice discoloration during storage have not been studied extensively and many questions remain. Therefore, the primary goal of this study was to improve understanding of the role and contributions of storage practices on rice quality degradation and discoloration. In this study, three rice cultivars including XL753 (hybrid), Roy J (pureline), and Titan were assessed for changes in quality and microbial kinetics. The rice samples at a high moisture content (MC) of 21% w.b. and a low MC of 16% were stored ...
Impact Of Selected Infrared Wavelengths Treatment On Inactivation Of Microbes On Rough Rice, 2020 University of Arkansas, Fayetteville
Impact Of Selected Infrared Wavelengths Treatment On Inactivation Of Microbes On Rough Rice, Rebecca Bowie
Food Science Undergraduate Honors Theses
Formation of harmful microbes and their associated mycotoxins on rough rice during storage present negative socioeconomic impacts to producers and consumers. The objective for this study was to investigate the impact of treating rough rice with selected infrared (IR) wavelengths at different IR intensities and heating durations, followed by a tempering step for further inactivation of microbes (mold and bacteria) on the grain. Freshly-harvested long-grain, hybrid, rough rice (XL 745) with initial moisture content (IMC) of 18.4% wet basis (w.b.) was used. Two-hundred grams (200 g) of the samples were treated at different IR wavelengths (λ) which were ...
Food Safety Risk In An Indoor Microgreen Cultivation System, 2020 University of Arkansas, Fayetteville
Food Safety Risk In An Indoor Microgreen Cultivation System, Gina Marie Misra
Theses and Dissertations
Microgreens are immature sprouts of edible plants, sharing some similarities with sprouted seeds and petite leafy greens. Since they are most often grown in containers in buildings or greenhouses, they present a new area for food safety research at the intersection of the built environment and produce farming. Contamination by human pathogens has been extensively studied in other types of produce typically eaten raw, including sprouted seeds, which have been implicated in numerous outbreaks of salmonellosis over the last several decades. There is a paucity of knowledge about the microgreen sector of the fresh-cut industry; thus, it was determined that ...
Flourishing Gardens In Peoples Lives, 2020 California State University, Monterey Bay
Flourishing Gardens In Peoples Lives, Ramiro Rocha
Capstone Projects and Master's Theses
Mesa Verde Gardens has been a great asset in the Watsonville and Pajaro area by providing a unique way for people to live healthier lives. The community gardens have given people an opportunity to reach new standards for themselves. The organic produce being grown out of the seven different gardens in the area has accommodated the gardeners with delicious food for the entire season. In order to grow Mesa verde Gardens, an outreach project was conducted to allow people to familiarize with all seven gardens. These events included fundraisers, door to door outreach, and participation in community gatherings like festivals ...
Preserving Pomegranates, 2020 Utah State University Extension
Preserving Pomegranates, Charlotte P. Brennand, Suzanne Jorgenson
All Current Publications
This publication describes pomegranates and how to store and can them. It also provides nutritional information.