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237 full-text articles. Page 1 of 9.

Food Safety Risk In An Indoor Microgreen Cultivation System, Gina Marie Misra 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 ...


Edible Films Made Of Corn Zein Protein And Cellulose Derivatives, Gloria Dukuzeyesu, Changmou Xu, Zhang Yue 2020 University of Nebraska-Lincoln

Edible Films Made Of Corn Zein Protein And Cellulose Derivatives, Gloria Dukuzeyesu, Changmou Xu, Zhang Yue

UCARE Research Products

A composite edible film made of corn zein protein (Z) and cellulose derivatives (C) was successfully fabricated. Edible films are coatings used to wrap food products to protect them against microbial deterioration, loss of moisture, and to extend the shelf life of the product. These edible films are consumed together with the product . The mechanical properties, water vapor permeability, application on fruits, and shelf life of the composite film were studied. Zein demonstrated excellent packing characteristics; due to its high no polar contents and hydrophobic nature, zein film served as a moisture barrier. Hydroproxy methylcellulose (HPM) is tasteless, odorless and ...


Pcr Cloning Combined With Dna Barcoding Enables Partial Identification Of Fish Species In A Mixed-Species Product, Anthony J. Silva, Michael D. Kawalek, Donna M. Williams-Hill, Rosalee S. Hellberg 2020 Chapman University

Pcr Cloning Combined With Dna Barcoding Enables Partial Identification Of Fish Species In A Mixed-Species Product, Anthony J. Silva, Michael D. Kawalek, Donna M. Williams-Hill, Rosalee S. Hellberg

Food Science Faculty Articles and Research

DNA barcoding is a valuable tool for regulatory identification of fish species; however, it does not perform well when multiple species are present within the same food product. Therefore, the objective of this study was to examine the use of PCR cloning to identify fish in a mixed-species product that cannot be identified with standard DNA barcoding. A total of 15 fish ball mixtures were prepared with known amounts of Nile tilapia (Oreochromis niloticus), Pacific cod (Gadus macrocephalus), and walleye pollock (Gadus chalcogrammus). Three subsamples from each fish ball underwent DNA extraction, full DNA barcoding (655 bp), and mini-barcoding (226 ...


The Exploration Of Nanotoxicological Copper And Interspecific Saccharomyces Hybrids, Matthew Joseph Winans PhD 2020 West Virginia University

The Exploration Of Nanotoxicological Copper And Interspecific Saccharomyces Hybrids, Matthew Joseph Winans Phd

Graduate Theses, Dissertations, and Problem Reports

Nanotechnology takes advantage of cellular biology’s natural nanoscale operations by interacting with biomolecules differently than soluble or bulk materials, often altering normal cellular processes such as metabolism or growth. To gain a better understanding of how copper nanoparticles hybridized on cellulose fibers called carboxymethyl cellulose (CMC) affected growth of Saccharomyces cerevisiae, the mechanisms of toxicity were explored. Multiple methodologies covering genetics, proteomics, metallomics, and metabolomics were used during this investigation. The work that lead to this dissertation discovered that these cellulosic copper nanoparticles had a unique toxicity compared to copper. Further investigation suggested a possible ionic or molecular mimicry ...


Estimation Of Minimum Inhibitory Concentration (Mic) And Minimum Bactericidal Concentration (Mbc) Of Antimicrobial Peptides Of Saccharomyces Boulardii Against Selected Pathogenic Strains, Venkateswarulu T.C, Krupanidhi Srirama, Indira Mikkili, Nazneen Bobby Md., John Babu Dulla, Venkata Narayana Alugunulla, Dasari Sweety, Abraham Peele Karlapudi 2019 VIGNAN FOUNDATION FOR SCIENCE TECHNOLOGY AND RESEARCH

Estimation Of Minimum Inhibitory Concentration (Mic) And Minimum Bactericidal Concentration (Mbc) Of Antimicrobial Peptides Of Saccharomyces Boulardii Against Selected Pathogenic Strains, Venkateswarulu T.C, Krupanidhi Srirama, Indira Mikkili, Nazneen Bobby Md., John Babu Dulla, Venkata Narayana Alugunulla, Dasari Sweety, Abraham Peele Karlapudi

Karbala International Journal of Modern Science

Saccharomyces boulardii is used for antimicrobial peptide production and so can be termed as bacteriocin molecules with probiotic potential. Antimicrobial peptides are extracted from the culture broth and followed the purification using Sephadex G-50 column. Further, the inhibition activity was determined against selected microorganisms and inhibition zone against streptococcus pneumoniae was found to be highest among selected microbes. The fourth fraction of the peptide after purification was shown a 26 mm bacterial inhibition zone determined by agar well diffusion method. SDS-PAGE analysis revealed the protein band corresponding to 18 kDa was observed. The MBC/MIC study proved that the peptide ...


The Physicochemical Properties Of Soy Protein Hydrolysate And Its Formulation And Stability With Encapsulated Probiotic, John Stricklin Edwards 2019 University of Arkansas, Fayetteville

The Physicochemical Properties Of Soy Protein Hydrolysate And Its Formulation And Stability With Encapsulated Probiotic, John Stricklin Edwards

Theses and Dissertations

Soy protein isolate (SPI) and probiotics can serve as a functional ingredient and beneficial supplement, respectively, to food formulations, but few studies focus on the compatibility of these two ingredients. The objective of this study was to prepare soy protein isolate (SPI) from defatted soybean flour and identify an optimal hydrolysis protocol to create soy protein hydrolysates (SPH) with improved solubility and functional properties and achieve an optimum encapsulation technique for probiotics and to determine the in vitro viability of encapsulated probiotic cells with SPH in a gastrointestinal environment. The SPI was prepared using an alkaline extraction procedure for solubility ...


#18 - Popular Unlabelled Cornmeal Brands Expected To Be Labeled As ‘Bioengineered’ By 2022 In The U.S.: Due To Detection Of Genetic Material, Elvia Encarnacion-Thomas, Jenai DaCosta, Farinaz Panah, Lilly Dishmey-Garrido, Tsion Adula 2019 Georgia Gwinnett College

#18 - Popular Unlabelled Cornmeal Brands Expected To Be Labeled As ‘Bioengineered’ By 2022 In The U.S.: Due To Detection Of Genetic Material, Elvia Encarnacion-Thomas, Jenai Dacosta, Farinaz Panah, Lilly Dishmey-Garrido, Tsion Adula

Georgia Undergraduate Research Conference (GURC)

There is a growing concern in the U.S. about genetically modified (GM) or GMO foods and consumers are demanding proper disclosure. Public Law 114-216 passed July 29, 2016 also known as the ‘GMO labeling bill’, where the USDA established a National Bioengineered Food Disclosure Standard (NBFDS) stating manufacturers are not required to label products if genetic material is undetected3. Bioengineered food is defined as a food that has been modified through the insertion of in vitro recombinant deoxyribonucleic acid techniques, per NBFDS. Because corn is currently in the bioengineered lists of crops and 93% of corn produced in ...


#19 - Testing Usda Certified Organic Soy Noodles For Genetic Modifications, Dhwani Mistry, Kyra Brewer, Salsabile Ibrahim, Vedanti Patel 2019 Georgia Gwinnett College

#19 - Testing Usda Certified Organic Soy Noodles For Genetic Modifications, Dhwani Mistry, Kyra Brewer, Salsabile Ibrahim, Vedanti Patel

Georgia Undergraduate Research Conference (GURC)

Screening USDA Certified Organic Soy noodles for genetic modifications using various DNA and protein analysis tools like DNA isolation, PCR, Gel Electrophoresis, Nano-drop, and ELISA.


Development And Optimization Of Ph-Responsive Plga-Chitosan Nanoparticles For Triggered Release Of Antimicrobials, Cicero C. Pola, Allan R.F. Moraes, Eber A.A. Medeiros, Reinaldo F. Teófilo, Nilda F.F. Soares, Carmen L. Gomes 2019 Iowa State University and Federal University of Viçosa

Development And Optimization Of Ph-Responsive Plga-Chitosan Nanoparticles For Triggered Release Of Antimicrobials, Cicero C. Pola, Allan R.F. Moraes, Eber A.A. Medeiros, Reinaldo F. Teófilo, Nilda F.F. Soares, Carmen L. Gomes

Mechanical Engineering Publications

The aim of this work was to develop and optimize a pH-responsive nanoparticle based on poly(D,L-lactide-co-glycolide) (PLGA) and chitosan (CHIT) for delivery of natural antimicrobial using trans-cinnamaldehyde (TCIN) as a model compound. The optimization was performed using a central composite design and the desirability function approach. The optimized levels of variables considering all significant responses were 4% (w/w) of TCIN and 6.75% (w/w) of CHIT. After, optimized nanoparticles were produced and characterized according to their physicochemical properties and their antimicrobial activity against SalmonellaTyphimurium and Staphylococcus aureus. Optimized nanoparticles characterization indicated a satisfactory TCIN ...


Effects Of Germination Conditions Of Brown Rice In Relation To Flour Physicochemical Properties And Bread Qualities, Wipada Wunthunyarat 2019 University of Arkansas, Fayetteville

Effects Of Germination Conditions Of Brown Rice In Relation To Flour Physicochemical Properties And Bread Qualities, Wipada Wunthunyarat

Theses and Dissertations

Gluten-free products from rice are gaining popularity among consumers because of its hypoallergenic characteristic. The absence of gluten results in inferior bread qualities such as hard texture, reduced volume and shorter shelf-life, which can be improved by the addition of external hydrolytic enzymes. Hydrolytic enzymes are activated during germination to stimulate plant growth, and hence these enzymes may function similarly to the external enzymes to improve gluten-free bread from brown rice. Therefore, the objective of this work was to investigate the activities of amylases and protease in germinated brown rice (GBR) from long-grain and short-grain rices under different germination conditions ...


The Effect Of Biochar Addition On The Biogas Production Kinetics From The Anaerobic Digestion Of Brewers’ Spent Grain, Marta Dudek, Kacper Świechowski, Piotr Manczarski, Jacek A. Koziel, Andrzej Białowiec 2019 Wrocław University of Environmental and Life Sciences

The Effect Of Biochar Addition On The Biogas Production Kinetics From The Anaerobic Digestion Of Brewers’ Spent Grain, Marta Dudek, Kacper Świechowski, Piotr Manczarski, Jacek A. Koziel, Andrzej Białowiec

Agricultural and Biosystems Engineering Publications

Biochar (BC) addition is a novel and promising method for biogas yield increase. Brewer’s spent grain (BSG) is an abundant organic waste with a large potential for biogas production. In this research, for the first time, we test the feasibility of increasing biogas yield and rate from BSG digestion by adding BC, which was produced from BSG via torrefaction (low-temperature pyrolysis). Furthermore, we explore the digestion of BSG with the presence BCs produced from BSG via torrefaction (low-temperature pyrolysis). The proposed approach creates two alternative waste-to-energy and waste-to-carbon type utilization pathways for BSG: (1) digestion of BSG waste to ...


Miami Craft Brewery Collection, David Lanster 2019 University of Miami

Miami Craft Brewery Collection, David Lanster

Library Research Scholars Program 2018-2019

The Miami food scene - including restaurants, breweries, bakeries, and distilleries - is in a state unlike any it has experienced before. Fueled by innovators in cuisine and tangible public excitement, it is an unprecedented time in terms of both quantity and quality for South Floridians to eat and drink. The Miami Craft Brewery Collection effort within the Special Collections hopes to document and celebrate the rise of Craft Brewing in Miami through the collection of brewery documents, advertising ephemera, bottles/labels, actual beer, and oral histories from prominent leaders in the field.


Effect Of Fermentation On Enhancing The Nutraceutical Properties Of Arthrospira Platensis (Spirulina), Elena Demarcocastro, Emer Shannon, Nissreen Abu-Ghannam 2019 Technological University Dublin

Effect Of Fermentation On Enhancing The Nutraceutical Properties Of Arthrospira Platensis (Spirulina), Elena Demarcocastro, Emer Shannon, Nissreen Abu-Ghannam

Articles

Abstract:Arthrospira platensis(spirulina), a filamentous fresh-water planktonic cyanobacterium,possesses diverse biological activities and a unique nutritional profile, due to its high contentof valuable nutrients. This study aimed to further improve the bioactive profile of spirulina, byfermenting it with the lactic acid bacteriumLactobacillus plantarum.In vitrocomparison of thetotal phenolic content (TPC), C-phycocyanin, free methionine, DPPH radical scavenging capacity,ferric reducing antioxidant power (FRAP), oxygen radical absorbance capacity (ORAC) and proteinfragmentation via SDS-PAGE in untreated versus 12 to 72 h fermented spirulina is reported here.After 36 h fermentation, TPC was enhanced by 112%, FRAP by 85% and ORAC by 36 ...


No More, Monsanto. A Comprehensive Review Of The Most Hated Agriculture/Biotechnology/Chemical/Confectionery/Pharmaceutical Company In America., Gabrielle Robbins 2019 University of Nebraska - Lincoln

No More, Monsanto. A Comprehensive Review Of The Most Hated Agriculture/Biotechnology/Chemical/Confectionery/Pharmaceutical Company In America., Gabrielle Robbins

Honors Theses, University of Nebraska-Lincoln

Since 1901, Monsanto's roots have held strong to its grip as a conglomerate in chemical, agriculture, and biotechnology industries. This creative project will deconstruct, investigate and strategically interpret the brand's history, logo, social responsibility and so much more of the good, bad and the ugly.


A Theoretical Model Of Underground Dipole Antennas For Communications In Internet Of Underground Things, Abdul Salam, Mehmet C. Vuran, Xin Dong, Christos Argyropoulos, Suat Irmak 2019 Purdue University

A Theoretical Model Of Underground Dipole Antennas For Communications In Internet Of Underground Things, Abdul Salam, Mehmet C. Vuran, Xin Dong, Christos Argyropoulos, Suat Irmak

Faculty Publications

The realization of Internet of Underground Things (IOUT) relies on the establishment of reliable communication links, where the antenna becomes a major design component due to the significant impacts of soil. In this paper, a theoretical model is developed to capture the impacts of change of soil moisture on the return loss, resonant frequency, and bandwidth of a buried dipole antenna. Experiments are conducted in silty clay loam, sandy, and silt loam soil, to characterize the effects of soil, in an indoor testbed and field testbeds. It is shown that at subsurface burial depths (0.1-0.4m), change in soil ...


Atmospheric Cold Plasma Interactions With Microbiological Risks In Fresh Food Processing, Apurva Patange 2019 Technological University Dublin

Atmospheric Cold Plasma Interactions With Microbiological Risks In Fresh Food Processing, Apurva Patange

Doctoral

Atmospheric cold plasma (ACP) is a novel emerging non-thermal technology that has attracted attention as a decontamination tool in several industrial, food and healthcare sectors. This study investigated the anti-microbial efficacy of ACP against microbiological risks associated with fresh foods. Treatment was performed using in-package ‘dry’ ACP technology and plasma functionalised liquid to decontaminate microorganisms, exploring the responses to real and challenging microbiological risks pertinent to both fresh foods themselves as well as the effluents generated from food processing industry. A range of critical control process parameters were investigated with respect to key pathogenic and spoilage microorganisms commonly implicated in ...


Consumers' Evaluations Of Genetically Modified Food Messages, Taylor K. Ruth, Joy N. Rumble 2019 University of Illinois at Urbana-Champaign

Consumers' Evaluations Of Genetically Modified Food Messages, Taylor K. Ruth, Joy N. Rumble

Journal of Applied Communications

Consumers are concerned about the risks related to genetically modified (GM) food, and there is a need for agricultural communicators and educators to address those concerns. The purpose of this study was to explore Florida residents’ latitudes of acceptance, rejection, and noncommitment toward GM food messages. The findings from this study can be used to guide communication and education campaigns for GM food. An online survey was distributed to a non-probability sample of 500 Florida residents to fulfill the purpose of the study. The messages that most aligned with the respondents’ views toward GM food discussed how potential risks related ...


Island Invasion: The Silent Crisis In Hawaii, Sophia Janssen 2019 Claremont Colleges

Island Invasion: The Silent Crisis In Hawaii, Sophia Janssen

Pomona Senior Theses

Keeping out invasive species may, upon first review, seem like a trivial environmental cry from ecologists and deep environmentalists; a belated wish to return to an undeveloped world where nature was pristine. However invasive species create problems that impact all of us and can have far more severe consequences than changing a stunning landscape. These problems are heightened in islands like Hawaii, where the fragile ecosystems have developed over centuries of evolution and adaptation. The introduction of a disease-carrying mosquito can put the people of Hawaii at risk to many vector-born illnesses and create an epidemic, taking human life. The ...


Quantification Of Voc Emissions From Carbonized Refuse-Derived Fuel Using Solid-Phase Microextraction And Gas Chromatography-Mass Spectrometry, Andrzej Białowiec, Monika Micuda, Antoni Szumny, Jacek Łyczko, Jacek A. Koziel 2018 Wrocław University of Environmental and Life Sciences

Quantification Of Voc Emissions From Carbonized Refuse-Derived Fuel Using Solid-Phase Microextraction And Gas Chromatography-Mass Spectrometry, Andrzej Białowiec, Monika Micuda, Antoni Szumny, Jacek Łyczko, Jacek A. Koziel

Agricultural and Biosystems Engineering Publications

In this work, for the first time, the volatile organic compound (VOC) emissions from carbonized refuse-derived fuel (CRDF) were quantified on a laboratory scale. The analyzed CRDF was generated from the torrefaction of municipal waste. Headspace solid-phase microextraction (SPME) and gas chromatography-mass spectrometry (GC-MS) was used to identify 84 VOCs, including many that are toxic, e.g., derivatives of benzene or toluene. The highest emissions were measured for nonanal, octanal, and heptanal. The top 10 most emitted VOCs contributed to almost 65% of the total emissions. The VOC mixture emitted from torrefied CRDF differed from that emitted by other types ...


Efficacy Of Antimicrobial Mitigation On Escherichia Coli Cfu And Growth And Development Of Hydroponic Leafy Greens, Nathan J. Eylands 2018 University of Arkansas, Fayetteville

Efficacy Of Antimicrobial Mitigation On Escherichia Coli Cfu And Growth And Development Of Hydroponic Leafy Greens, Nathan J. Eylands

Theses and Dissertations

The Food and Drug Administration (FDA) have set new standards that apply to agriculturalists producing crops eaten fresh and/or raw by consumers. This new produce safety rule, known as the Food Safety Modernization Act (FSMA), has established science-based standards for all areas of production in agriculture with regards to microbial contamination. Escherichia coli (E. coli) O157:H7 is a particular bacterium of concern under FSMA guidelines. Grower compliance is mandatory and therefore vital to the continuation of any farm. Greenhouse hydroponic growers have shown advantages in efficiency when compared to conventional farming methodology. Those, however, with recirculating hydroponic systems ...


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