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Full-Text Articles in Life Sciences

Determination Of Free Fatty Acid And Triglyceride Fatty Acid Of Food Fats Using A Rapid Gas Chromatographic Method, Aubreyona Migliori Dec 2021

Determination Of Free Fatty Acid And Triglyceride Fatty Acid Of Food Fats Using A Rapid Gas Chromatographic Method, Aubreyona Migliori

Fall Student Research Symposium 2021

Food fats are primarily triglycerides composed of esterified fatty acids on a glycerol backbone. To measure the fatty acid content of foods, a derivatization reaction is conducted which transfers the fatty acids from glycerol to methanol, forming a fatty acid methyl ester (FAME). FAMES are measured using gas chromatography with flame ionization detection (GC-FID). Free fatty acids in foods are a result of a degradation reactions and are considered a defect. This decreases consumer acceptance and expedites further deterioration which decreases the value of edible oils. The goal of this study was to develop a rapid and sensitive method to …


The Effects Of Various Carbon Sources And The Presence Of Vitamin B-12 On The Production Of 1,3-Propanediol By L. Reuteri., Kayden Stevenson Dec 2021

The Effects Of Various Carbon Sources And The Presence Of Vitamin B-12 On The Production Of 1,3-Propanediol By L. Reuteri., Kayden Stevenson

Fall Student Research Symposium 2021

Dairy product preservation has evolved over thousands of years and has been a major benefit to humanity by creating stable, nutrient-dense food sources. Today the lactic acid bacteria Lactobacillus reuteri is important in preserving fermented dairy products through the production of the compound reuterin. Reuterin (1,3-propanediol) demonstrates antibiotic properties that prevent the fermentation of dairy products by undesirable bacteria. The purpose of this study is to determine if L. reuteri can produce 1,3-propanediol from a variety of carbon sources. Bacterial strains were incubated in the presence of a carbon source with vitamin B-12 or without B-12 for seven days with …


Climate Change Impacts On Atmospheric Ammonia And Implications For Human Health, Casey Olson, Connor Snow, Bridger Jorgensen Dec 2021

Climate Change Impacts On Atmospheric Ammonia And Implications For Human Health, Casey Olson, Connor Snow, Bridger Jorgensen

Fall Student Research Symposium 2021

According to national data Cache Valley has the highest concentrations of atmospheric ammonia in the nation. This study aims to answer the questions of whether climate variables and events such as precipitation, averaged winds, geopotential height, and teleconnections can be used to predict the behavior of pollutants and how human biology is potentially affected. Data from the Utah Climate Center shows that the 3rd yearly quartile has the highest levels of airborne ammonia due to the high levels of fertilizer use and livestock emissions in the farming industry in Cache Valley. After data analysis, there seems to be a connection …


Power Ultrasonication Improves Tenderness And Proteolysis In Beef Steak During Aging, Chandler Stafford Dec 2020

Power Ultrasonication Improves Tenderness And Proteolysis In Beef Steak During Aging, Chandler Stafford

Fall Student Research Symposium 2020

Among the eating qualities attributed to cooked meat, tenderness is considered an essential factor in dictating consumers' overall satisfaction and future purchase. Tenderness can be influenced by several extrinsic and intrinsic factors; however, the extent of postmortem proteolysis that occurs during meat aging is the main contributor to end-product tenderness. The process involves enzymatic degradation of key cytoskeletal proteins and the signaling of cellular apoptosis, which ultimately leads to the breakdown of muscles structural integrity, resulting in tenderization. The calcium-dependent calpain system, specifically calpain-1, has been recognized as the main protease involved in postmortem tenderization. In the presence of calcium, …


Mitochondrial Pyruvate Consumption Decreases Glycolytic Flux In Postmortem Muscle, Natalie Keele Dec 2020

Mitochondrial Pyruvate Consumption Decreases Glycolytic Flux In Postmortem Muscle, Natalie Keele

Fall Student Research Symposium 2020

Mitochondrial pyruvate consumption decreases glycolytic flux in postmortem muscleColor, water-holding capacity and tenderness are important aspects of meat quality that are impacted by pH. The pH of meat is primarily determined by the amount of anaerobic glycolysis that occurs postmortem. As glycogen is degraded, it will produce ATP, pyruvate and hydrogen ions that acidify the meat, and this acidification process is essential for proper meat quality development. In the absence of oxygen, pyruvate is converted to lactate to restore NAD+ necessary for further glycolysis. In this state of anoxia, mitochondria are often ignored due to their reliance on oxygen to …


Belief, Virtue, And Illness In Late-Nineteenth Century Domestic Manuals, Anneka Walton Dec 2020

Belief, Virtue, And Illness In Late-Nineteenth Century Domestic Manuals, Anneka Walton

Fall Student Research Symposium 2020

The belief that one's health is a result of their behavior has persisted throughout much of history. At times, these beliefs were so direct as to blame any and all illness on the "sins" of the victim. In some ways, we still see these beliefs persist today. While we now understand many of the true causes of illness, we continue to believe that poor behaviors can result in poor health outcomes, and often treat people suffering from conditions they "brought on themselves" accordingly. The object of this research is to better understand how American societal beliefs of the causes of …


Cytokine Indicators Of Inflammation In Mice Fed A Western Type Diet, Emily Mortensen Dec 2020

Cytokine Indicators Of Inflammation In Mice Fed A Western Type Diet, Emily Mortensen

Fall Student Research Symposium 2020

Colorectal cancer is currently the second leading cause of cancer-related deaths in the United States and is projected to cause 53,200 deaths during 2020. The risk of colon cancer increases by 8-20% in individuals who suffer from colitis, which is inflammation of the colon lining. Colitis is common in patients with inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis. The development of colorectal cancer is complex and can be associated with dysbiosis of the gut microbiota, which has been shown to be affected by diet. Disruption of the gut microbiome can lead to the overgrowth of pathogenic bacteria …