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Implementation Of Iso/Iec Practices In Small And Academic Laboratories, Eric Layne Oliver 2018 University of Nebraska-Lincoln

Implementation Of Iso/Iec Practices In Small And Academic Laboratories, Eric Layne Oliver

Dissertations, Theses, & Student Research in Food Science and Technology

Food Manufacturers are facing challenging times due to regulations such as the Food Safety Modernization Act (FSMA) requiring them to provide evidence they are producing safe foods. Food testing laboratories aid in the mitigation of food safety issues providing evidence that a manufacturers food safety system is acceptable. To perform these activities laboratories are required to adhere to certain standards such as ISO/IEC 17025 General Requirements for the Competence of Testing and Calibration Laboratories. However, implementation of ISO/IEC 17025 practices is challenging, especially for small and academic laboratories, due to lack of available guidance. A long-term goal of ...


Thermal Inactivation Kinetics Of Salmonella Enterica And Enterococcus Faecium In Ground Black Pepper, Sabrina Vasquez 2018 University of Nebraska - Lincoln

Thermal Inactivation Kinetics Of Salmonella Enterica And Enterococcus Faecium In Ground Black Pepper, Sabrina Vasquez

Dissertations, Theses, & Student Research in Food Science and Technology

Food safety concerns of low-awfoods have boosted, given the increased number of foodborne illnesses related to these products. Black pepper, among other spices, has been implicated in several outbreaks and recalls in recent years.Salmonella entericahas been identified as the causing agent of outbreaks of contaminated spices. Therefore, increased efforts should be conducted to ensure food safety of spices, including black pepper. Food Safety Modernization Act (FSMA) demands all food processing facilities to conduct proper validations of the decontamination technologies applied to food products. Complete thermal process validations require a deep understanding of the thermal inactivation kinetics ...


Investigating The Potential Of Plant-Derived Antimicrobials For Controlling Campylobacter Jejuni In Poultry And Poultry Products, Basanta Raj Wagle 2018 University of Arkansas, Fayetteville

Investigating The Potential Of Plant-Derived Antimicrobials For Controlling Campylobacter Jejuni In Poultry And Poultry Products, Basanta Raj Wagle

Theses and Dissertations

Campylobacter jejuni infection in humans is strongly associated with the handling and consumption of contaminated poultry products. Interventions reducing C. jejuni contamination in poultry would reduce the risk of subsequent human infections. In the first study, the efficacy of a Generally Recognized as Safe (GRAS) compound, eugenol (EG; derived from cloves), as an antimicrobial dip treatment to reduce C. jejuni in postharvest poultry was evaluated. The antimicrobial efficacy of EG was studied in suspension, emulsion and nanoemulsion delivery systems. EG suspension reduced C. jejuni counts with the greatest reduction of >2.0 Log CFU/sample for the 2% dose of ...


Anti-Inflammatory Effect Of Berry Essences, Inah Gu 2018 University of Arkansas, Fayetteville

Anti-Inflammatory Effect Of Berry Essences, Inah Gu

Theses and Dissertations

Inflammation is one of defense reactions of our body tissues against harmful stimuli such as infection and tissue injury. However, it has been reported that chronic inflammation can lead to chronic inflammatory diseases including diabetes, cardiovascular diseases and cancer. This transition from acute to chronic inflammation state is usually induced by pro-inflammatory mediators and cytokines including nitric oxide (NO), prostaglandin E2 (PGE2), interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α), which accelerate the development of other chronic diseases. Accordingly, targeting these pro-inflammatory factors is one of the important roles for anti-inflammatory agents. For last two decades, researches about anti-inflammatory ...


Effect Of Grain Sorghum Polyphenols On Fecal Fermentation, Danielle Marie Ashley 2018 University of Arkansas, Fayetteville

Effect Of Grain Sorghum Polyphenols On Fecal Fermentation, Danielle Marie Ashley

Theses and Dissertations

Obesity is an increasing epidemic which during 2015-2016 afflicted 39.8% of adults and 18.5% of youth in the United States. Not only can obesity affect quality of life, but it can lead to life-threatening diseases such as type 2 diabetes, heart disease, stroke, and some cancers. Animal and human research have demonstrated a pattern of gut microbiota perturbation in overweight and obesity, characterized by a reduction of beneficial bacterial species and increase in harmful species. Diet has been established as a contributing factor in gut ecology, and foods including fiber, resistant starch, and polyphenols have been found to ...


Anti-Inflammatory Activity Of Phenolic And Volatile Compounds In Cranberries (Vaccinium Macrocarpon L), Katherine Moore 2018 University of Arkansas, Fayetteville

Anti-Inflammatory Activity Of Phenolic And Volatile Compounds In Cranberries (Vaccinium Macrocarpon L), Katherine Moore

Theses and Dissertations

The primary objective of this study was to compare the anti-inflammatory effects of phenolic and volatile compounds extracted from cranberries. The Griess Reagent System assay was used to measure the in vitro anti-inflammatory capabilities of cranberry phenolic and volatile extracts on RAW 264.7 mouse macrophage cells. This study tested the anti-inflammatory capabilities of the cranberry phenolic and volatile extracts before, as a preventative treatment, and after, as a means of treating pre-existing inflammation, inducing inflammation with lipopolysaccharide (LPS). All experiments were conducted in the following manner, varying only in whether treated with the extracts before or after LPS: 1 ...


Methane Emissions From Rice Production On A Silt-Loam Soil In Arkansas, Joshua Jeffry Humphreys 2018 University of Arkansas, Fayetteville

Methane Emissions From Rice Production On A Silt-Loam Soil In Arkansas, Joshua Jeffry Humphreys

Theses and Dissertations

Methane (CH4) emissions from rice (Oryza sativa L.) production are a source of concern in the environmental and agricultural communities. New and/or revised agronomic methodologies will be needed to identify production practice combinations that reduce CH4 emissions without decreasing yields. The objective of this multi-year study was to evaluate the effects of water management (i.e., full-season flood and mid-season drain) (2015), cultivar (i.e., pure-line cultivar ‘LaKast’ and the RiceTec hybrid “XP753”) (2015), soil organic matter (SOM) concentration (2016), and tillage [conventional tillage (CT) and no-tillage (NT)] and urea-based fertilizers [N-(n-butyl) thiophosphoric triamide (NBPT)-coated urea and ...


Growth Characteristics Of Lactobacillus Wasatchensis And Its Detection And Enumeration Using Quantitative Polymerase Chain Reaction, Isaac Brockbank Bowen 2018 Utah State University

Growth Characteristics Of Lactobacillus Wasatchensis And Its Detection And Enumeration Using Quantitative Polymerase Chain Reaction, Isaac Brockbank Bowen

All Graduate Theses and Dissertations

There are numerous challenges encountered during the manufacturing and storage of cheese by both the large-scale and artesian producers. One such challenge has been the formation of late gassy defect, which occurs when gas is produced by certain lactic acid bacteria found in the cheese block during storage and aging over a three month time period. Negative consequences of late gas production are slits and cracks in the cheese block and puffy cheese packaging, which cause significant financial losses for manufacturers along with poor consumer acceptance.

Lactobacillus wasatchensis is one such lactic acid bacterium shown to produce gas during cheese ...


The Effects Of Cold Plasma Treatment On Sweet Basil (Ocimum Basilicum), Sauvelson Auguste 2018 Seton Hall University

The Effects Of Cold Plasma Treatment On Sweet Basil (Ocimum Basilicum), Sauvelson Auguste

Seton Hall University Dissertations and Theses (ETDs)

The study discussed herein looks both to continue and to expand upon previous work conducted here at Seton Hall University, which investigated the effect of cold plasma processing on sweet basil and their essential oils. It was found that the application of cold plasma treatment increases plant growth and eugenol concentration, which is an essential oil component and one of the potential natural antioxidants used in food preservation. In this study, we considered methods for increasing the production and harvesting of plants that produce essential oils such as sweet basil (Ocimum basilicum). The study also incorporated more controls than the ...


Integrating Environmental And Social Sustainability Into Performance Evaluation: A Balanced Scorecard-Based Grey-Danp Approach For The Food Industry, Gazi M. Duman, Murat Taskaynatan, Elif Kongar, Kurt A. Rosentrater 2018 University of Bridgeport

Integrating Environmental And Social Sustainability Into Performance Evaluation: A Balanced Scorecard-Based Grey-Danp Approach For The Food Industry, Gazi M. Duman, Murat Taskaynatan, Elif Kongar, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Publications

In addition to retaining high levels of customer satisfaction, sustainability of businesses is also heavily reliant on the efficiency of their internal and external processes. Continuous performance evaluations using key performance metrics to leverage operations are essential in maintaining a sustainable business while achieving growth objectives for revenue and profitability. Traditionally, companies have considered various financial criteria, quality characteristics, and targeted levels of service as their primary factors for performance evaluation. However, increasing environmental and social awareness and accompanying governmental legislations are now requiring companies to integrate these two aspects into their performance evaluations. With this motivation, this study proposes ...


Whole Cell Cross-Linking To Discover Host-Microbe Protein Cognate Receptor/Ligand Pairs, Bart C. Weimer, Poyin Chen, Prerak T. Desai, Dong Chen, Jigna Shah 2018 University of California, Davis

Whole Cell Cross-Linking To Discover Host-Microbe Protein Cognate Receptor/Ligand Pairs, Bart C. Weimer, Poyin Chen, Prerak T. Desai, Dong Chen, Jigna Shah

Biological Engineering Faculty Publications

Bacterial surface ligands mediate interactions with the host cell during association that determines the specific outcome for the host–microbe association. The association begins with receptors on the host cell binding ligands on the microbial cell to form a partnership that initiates responses in both cells. Methods to determine the specific cognate partnerships are lacking. Determining these molecular interactions between the host and microbial surfaces are difficult, yet crucial in defining biologically important events that are triggered during association of the microbiome, and critical in defining the initiating signal from the host membrane that results in pathology or commensal association ...


Techno-Economic Analysis (Tea) Of Extruded Aquafeeds, Rashid Suleiman, Kurt A. Rosentrater 2018 Sokoine University of Agriculture

Techno-Economic Analysis (Tea) Of Extruded Aquafeeds, Rashid Suleiman, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Publications

The worldwide decline and overexploitation of ocean fisheries stocks had provided an incentive for the rapid growth of aquaculture. The aquaculture industry has been recognized as the fastest-growing food production system globally, with a 10% increase in production per year and is one of the most reliable and sustainable growth markets for manufactured feeds. Extrusion technology has been extensively used in the modern aquatic feed manufacturing, due to nutritional, physical properties improvements and cost effectiveness of feeds. Cost related to aquatic feed remains the biggest challenge, especially for small-scale producers. In order to understand costs and potential breakeven points, a ...


Influences Of Spiciness And Visual Color Cue On Salty Taste Intensity Perception In Reduced-Sodium Cheese Dips, Valentina Rosasco Silva 2018 Louisiana State University and Agricultural and Mechanical College

Influences Of Spiciness And Visual Color Cue On Salty Taste Intensity Perception In Reduced-Sodium Cheese Dips, Valentina Rosasco Silva

LSU Master's Theses

The current high levels of dietary sodium intake are negatively affecting consumers’ health. Reducing sodium consumption to the recommended amount could help prevent around 2.5 million deaths yearly and save up to $18 billion dollars in health care costs worldwide. The main objective of this research was to evaluate the possibility of increasing the saltiness perception and acceptability of reduced-sodium cheese dips by using the multisensory approach and analyzing gender differences towards salty taste expectations. Two experiments were conducted: I) The combined effects of gender and visual color cue on salty taste expectations, liking, and purchase intent (PI) of ...


The Effect Of Destoning And Enzymatic Pretreatments On The Biofuel Production From Olive Cake, Patrick Tai 2018 California Polytechnic State University, San Luis Obispo

The Effect Of Destoning And Enzymatic Pretreatments On The Biofuel Production From Olive Cake, Patrick Tai

Master's Theses and Project Reports

More than 16,000 tons of olive cake was produced in the United States in 2017. Olive cake is a by-product of olive oil extraction, which has limited animal feed potential, and poses an environmental threat when landfilled due to its high organic load and polyphenol content. This residue has potential for biofuel (bioethanol and biomethane) production because it is rich in polysaccharides such as pectin, hemicellulose, and cellulose. Yet, olive cake contains olive stones that can impede its conversion to biofuel. Therefore, two methods of destoning, centrifugation and screening by horizontal screw press, were first compared. Both methods removed ...


Food Waste Posing A Serious Threat To Sustainability In The Kingdom Of Saudi Arabia – A Systematic Review, Mirza B. Baig, Khodran H. Al-Zahrani, Felicitas Schneider, Gary S. Straquadine, Marie Mourad 2018 King Saud University

Food Waste Posing A Serious Threat To Sustainability In The Kingdom Of Saudi Arabia – A Systematic Review, Mirza B. Baig, Khodran H. Al-Zahrani, Felicitas Schneider, Gary S. Straquadine, Marie Mourad

Applied Sciences, Technology and Education Faculty Publications

Worldwide, food waste is one of the prime issues threatening food security and the Kingdom of Saudi Arabia (KSA) is not an exception. With 427 kg of food wasted per capita per year, the country ranks among the top food wasters. Ironically, the Kingdom has limited arable lands and scarce water resources to support mass-scale agriculture and to feed its increasing population, KSA relies heavily on imports and subsidized food to meet needs. Yet, food is wasted at restaurants, caterers, cafeterias and, especially, by households such that food waste is the single-largest component of the landfills. The review article is ...


Colonization Of Breastfed Infants By Bifidobacterium Longum Subsp. Infantis Evc001 Reduces Virulence Gene Abundance, Giorgio Casaburi, Steven A. Frese 2018 Evolve BioSystems

Colonization Of Breastfed Infants By Bifidobacterium Longum Subsp. Infantis Evc001 Reduces Virulence Gene Abundance, Giorgio Casaburi, Steven A. Frese

Faculty Publications in Food Science and Technology

The infant gut microbiome is rapidly colonized by bacteria from the environment after birth, and this gut ecosystem can facilitate expansion of potential pathogens. Human milk shapes the infant gut microbiome and has evolved to foster the growth of specific bacteria. Breastfed infants fed the coevolved infant gut symbiont Bifidobacterium longum subsp. infantis EVC001 had significant modifications to their gut metagenome, including a decreased number of virulence factor genes.


A Systematic Literature Review For Evidence Of Aphanizomenon Flos-Aquae Toxigenicity In Recreational Waters And Toxicity Of Dietary Supplements: 2000–2017, Amber Lyon-Colbert, Shelley Su, Curtis Cude 2018 University of North Dakota

A Systematic Literature Review For Evidence Of Aphanizomenon Flos-Aquae Toxigenicity In Recreational Waters And Toxicity Of Dietary Supplements: 2000–2017, Amber Lyon-Colbert, Shelley Su, Curtis Cude

Kinesiology & Public Health Education Faculty Publications

Previous studies of recreational waters and blue-green algae supplements (BGAS) demonstrated co-occurrence of Aphanizomenon flos-aquae (AFA) and cyanotoxins, presenting exposure risk. The authors conducted a systematic literature review using a GRADE PRISMA-p 27-item checklist to assess the evidence for toxigenicity of AFA in both fresh waters and BGAS. Studies have shown AFA can produce significant levels of cylindrospermopsin and saxitoxin in fresh waters. Toxicity studies evaluating AFA-based BGAS found some products carried the mcyE gene and tested positive for microcystins at levels ≤ 1 μg microcystin (MC)-LR equivalents/g dry weight. Further analysis discovered BGAS samples had cyanotoxins levels exceeding ...


Potential Mechanisms For Nns-Induced Metabolic Deviances: Satiety Hormone Secretion And Alterations In The Gut Microbiota, Kyle J. Decker 2018 Rosalind Franklin University of Medicine and Science

Potential Mechanisms For Nns-Induced Metabolic Deviances: Satiety Hormone Secretion And Alterations In The Gut Microbiota, Kyle J. Decker

DePaul Discoveries

Rising rates of obesity and type 2 diabetes have prompted the usage and recommendation of nonnutritive sweeteners (NNS) as harmless sugar substitutes in attempts to decrease caloric intake. Contrary to the common belief that NNS remain physiologically inert post-consumption, evidence highlights their ability to alter metabolic processes via interactions in the gastrointestinal tract. An extensive review was conducted on the potential NNS-induced metabolic deviances by way of two non-mutually exclusive mechanisms. One possible mechanism involves their ability (or inability) to induce the secretion of GLP-1, a hormone produced in the gut that promotes satiety and accelerates glucose-dependent insulin secretion by ...


Integration Of Complementary And Alternative Medicine Into The Healthcare System In The United States, Nikki Lu 2018 University of Washington – Tacoma

Integration Of Complementary And Alternative Medicine Into The Healthcare System In The United States, Nikki Lu

Global Honors Theses

Chronic diseases are a prevalent issue around the world and chronic diseases are hard to prevent due to various systemic factors in the healthcare system. This paper mainly focused on socioeconomic issues and highlighted a few systemic factors in the US healthcare system. These factors have created various health disparities, inequities among socially constructed groups, and financial expenditures in the US healthcare system. Socioeconomic factors significantly impact the health and healthcare among socially constructed groups. Additionally, in this paper there are current approaches in addressing these healthcare factors such as social determinants of health and precision medicine as well as ...


Inefficient Metabolism Of The Human Milk Oligosaccharides Lacto-N-Tetraose And Lacto-N-Neotetraose Shifts Bifidobacterium Longum Subsp. Infantis Physiology, Ezgi Ozcan, David Sela 2018 University of Massachusetts, Amherst

Inefficient Metabolism Of The Human Milk Oligosaccharides Lacto-N-Tetraose And Lacto-N-Neotetraose Shifts Bifidobacterium Longum Subsp. Infantis Physiology, Ezgi Ozcan, David Sela

Open Access Articles

Human milk contains a high concentration of indigestible oligosaccharides, which likely mediated the coevolution of the nursing infant with its gut microbiome. Specifically, Bifidobacterium longum subsp. infantis (B. infantis) often colonizes the infant gut and utilizes these human milk oligosaccharides (HMOs) to enrich their abundance. In this study, the physiology and mechanisms underlying B. infantis utilization of two HMO isomers lacto-N-tetraose (LNT) and lacto-N-neotetraose (LNnT) was investigated in addition to their carbohydrate constituents. Both LNT and LNnT utilization induced a significant shift in the ratio of secreted acetate to lactate (1.7-2.0) in contrast to the catabolism of their ...


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