Food Science Commons^™

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%. After 24 h,the DPPH radical scavenging …

Ice Cream Substitute For Patients With End Stage Renal Disease, Abby Iocca

Theses and Dissertations

Background: Quality of life for patients with end stage renal disease is less than similar-aged, general population counterparts. A large part of the decrease in quality of life is change of diet and nutritional restrictions, oral nutrition supplements are a way to combat this decrease in quality of life.

Methods: An ice cream substitute product was developed for patients with end stage renal disease and that are on dialysis. The product consisted of rice milk, egg whites, evaporated coconut milk, sugar, and vanilla bean paste. There were two flavors: cinnamon and lemon. These flavors were both tested subjectively and objectively. …

Blueberry Pectin-Anthocyanin Binding Kinetics And Stability Under In Vitro Digestion, Jee Won Koh

LSU Doctoral Dissertations

Blueberry pectins were sequentially extracted from highbush blueberry powder and precipitated in alcohol to obtain water soluble fraction (WSF) and chelator soluble fraction (CSF). WSF was high methoxyl pectin (degree of esterification: 53), rich in in neutral sugars (40 mol%), and had less negative charge (-21 mV) whereas CSF was low methoxyl pectin (degree of esterification: 21), rich in uronic acids (92 mol%), and had lower negative charge ( -26 mV).

The stability of blueberry pectin-anthocyanin complex was investigated under simulated in vitro digestion. Binding of blueberry pectins with three anthocyanin standards (malvidin-3-glucoside; M3G, cyanidin-3-glucoside; C3G, and delphinidin-3-glucoside; D3G) and …

Corrigendum: Use Of Uv Treated Milk Powder To Increase Vaccine Efficacy In The Elderly, Sara Schaefer, Kasper Arthur Hettinga, James Cullor, J. Bruce German, Bethany M. Henrick

Department of Food Science and Technology: Faculty Publications

“Peripheral blood samples were collected at the time of enrollment (week 0) and serum was stored at −80◦C until subsequent analysis. Participants were then randomized into two groups and provided with equal concentration and quantity of either dairy or soy supplement provided in powdered form in coded, single-serving bags. Both participants and researchers were blinded to the type of protein received. Participants were asked to consume two servings of protein powder (6 grams/packet) with 4 ounces of water or applesauce twice per day, with meals, for a total of 8 weeks. At week 4, participants were vaccinated with DTaP vaccine …

Sensory Analysis For Determining The Influence Of Visual Stimuli Upon Eating Experiences, Pitchayapat Chonpracha

LSU Doctoral Dissertations

Consumers are currently more conscious about salt and sugar intake than they were in the past. Visual cues have been shown to impact consumers’ cognitive and their taste perceptions. Current research information about visual cues enhancing human’s tastes expectation of saltiness and sweetness is limited. The sophisticated sensory analysis for products containing a reduced amount of salt and sugar is undoubtedly time–consuming and costly if the sensory experiment is designed with many samples. Therefore, the following three studies were achieved: I) an examination of how intrinsic and extrinsic visual cues affect the overall consumer eating experiences; II) a comparison of …

Effect Of Environmental Factors And Residual Sanitizers On Survival And Attachment Of Indicator Organism And Human Pathogens On Fresh Produce, Vijay Singh Chhetri

LSU Doctoral Dissertations

A comprehensive understanding of the behavior of microbial contaminants on produce surfaces in agricultural farms and during post-harvest activities is essential for the development of produce safety risk management strategies. Our studies investigated the survival and the attachment of E. coli on watermelon surfaces in agricultural settings with different levels of vegetation, and the effect of residual sanitizers on the survival and the attachment of E. coli O157: H7 and L. monocytogenes on spinach leaves. The attachment strength (S_R) of the E. coli cells on watermelon surfaces significantly increased (P<0.05) from 0.04 to 0.99 in the first 24 h, which was primarily due to the decrease in loosely attached population, given that the population of strongly attached cells was constant. The daily die-off rate of E. coli ranged from -0.12 …

Program Coordinators’ Experiences With Introducing Parent-Focused Health Lessons To A Child-Centered Micronutrient Supplementation Program: An Exploration Of Recent Programmatic Changes In Liahona Children’S Foundation, Shannon Barham

Undergraduate Honors Theses

This paper utilizes survey responses from local coordinators of LCF, an international micronutrient supplementation humanitarian organization, to provide insight into the challenges and personal rewards of providing nutrition education to parents of malnourished children. LCF is based in Utah and operates in 19 countries throughout the world. LCF recently introduced a series of health lessons geared toward parents of malnourished children. A survey was sent to LCF workers in 12 countries in order to gather feedback about the health lessons. Qualitative survey responses are explored, and potential suggestions for future changes to the health lessons are proposed. Additionally, data gathered …

Tlr10 Senses Hiv-1 Proteins And Significantly Enhances Hiv-1 Infection, Bethany M. Henrick, Xiao-Dan Yao, Muhammad Atif Zahoor, Alash’Le Abimiku, Sophia Osawe, Kenneth L. Rosenthal

Department of Food Science and Technology: Faculty Publications

Toll-like receptors (TLRs) play a crucial role in innate immunity and provide a first line of host defense against invading pathogens. Of the identified human TLRs, TLR10 remains an orphan receptor whose ligands and functions are poorly understood. In the present study, we sought to evaluate the level of TLR10 expression in breastmilk (BM) and explore its potential function in the context of HIV-1 infection. We evaluated HIV-1-infected (Nigerian: n = 40) and uninfected (Nigerian: n = 27; Canadian: n = 15) BM samples for TLR expression (i.e., TLR10, TLR2, and TLR1) and report here that HIV-1-infected BM from Nigerian …

Shirli Self, Shirli Self, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Shirli Self is an Idaho native who has worked in school nutrition both in Idaho and Oregon, in a unique position. The area where she currently works in Oregon is so rural and remote that Oregon pays for her students to finish high school in Idaho after they complete eighth grade in Oregon, because the nearest Idaho high school is much closer than the nearest Oregon high school. She has twenty-one years of school nutrition experience and is a one-woman show, having no employees and being responsible for feeding ninety-three K – 8 students every day.

Hydrodistillation Extraction Kinetics Regression Models For Essential Oil Yield And Composition In Juniperus Virginiana, J. Excelsa, And J. Sabina, Ivanka B. Semerdjieva, Santosh Shiwakoti, Charles L. Cantrell, Valtcho D. Zheljazkov, Tess Astatkie, Vicki L. Schlegel, Tzenka Radoukova

Department of Food Science and Technology: Faculty Publications

The chemical profile and antioxidant capacity of Juniperus virginiana, J. excelsa, and J. sabina essential oil (EO) fractions as a function of time was the subject of this study. The hypothesis was that, capturing EO in sequential timeframes during hydrodistillation would generate fractions containing unique compositions and antioxidant capacity. In J. virginiana, the highest limonene (43%) was found in the 0–5 min oil fraction, with safrole (37%) being highest in the 10–20 and 20–40 min fractions, and elemol (34%) being highest in the 160–240 min fraction. In J. excelsa, α-pinene (34-36%) was the highest in the 0–5 min …

Improving Access To Clean Water Through Service Learning, Rachel E. Gehr, Tolu Odimayomi, Carolina Tornesi Mackinnon

Engagement & Service-Learning Summit

No abstract provided.

Reparation Ecologies: Regimes Of Repair In Populist Agroecology, Kirsten Valentine Cadieux, Stephen Carpenter, Alex Liebman, Renata Blumberg, Bhaskar Upadhyay

Department of Nutrition and Food Studies Scholarship and Creative Works

Amidst the backdrop of attention to populism in general, it is instructive to understand populism through social movements focused on food and agriculture. Agrarian populism is particularly salient in agrifood movements. Agroecology has been widely identified as a domain of populist claims on environmental and social governance surrounding agricultural–ecological and political–economic systems. As authoritarian populist leaders gain power throughout the world at a time of expanding economic globalization and contingent socioecological crises, contests over populism in agrifood regimes can highlight current dynamics relevant for formative evaluation of alternative political agroecology strategies and of populist environmental governance more broadly. Can populism …

Food – Eating With My Eyes, Nadia Arévalo

The Transdisciplinary STEAM+ Journal

Whole foods are visually stunning while being scientifically proven to be healthy. Here I share some images and notes of my colorful preparations that embrace the knowledge of the ever-expanding Nutritional Sciences.

Farmer Attitudes Toward Cooperative Approaches To Herbicide Resistance Management: A Common Pool Ecosystem Service Challenge, David E. Ervin, Elise H. Breshears, George B. Frisvold, Terrance M. Hurley, Katherine E. Dentzman, Jeffrey L. Gunsolus, Raymond A. Jussaume, Micheal D. K. Owen, Jason Norsworthy, Mustofa Mahmud Al Mamun, Wesley Everman

Environmental Science and Management Faculty Publications and Presentations

Dramatic growth in herbicide-resistant (HR) weeds in the United States threatens farm profitability and may undercut environmentally beneficial farming practices. When HR weeds move across farm boundaries due to ecological processes or human action, a common pool resource challenge emerges, requiring farmer cooperation to manage such weeds effectively. We investigate the scope for cooperative management using responses to a national survey on HR weed issues to test a recursive model of three preconditions for collective action: (1) concern about HR weeds migrating from nearby lands; (2) communication with neighbors about HR weeds; and (3) belief that cooperation is necessary for …

The Effect Of Alcohol And Bitterness Levels On Brewing Yeast Viability, Nichole Elizabeth Bryant

Master's Theses

Two of the most popular beer styles within the craft brewing industry are India Pale Ales (IPA’s) and those with high alcohol by volume (ABV). Production of these styles requires high gravity fermentation and high amounts of bittering hops in order to reach the required values for ABV and International Bitterness units (IBU) respectively. The aim of this study was to determine the impact of high gravity fermentation and high IBU levels on yeast viability and repitching cycles.

An initial experiment on high gravity fermentations was done in order to assess the effects this variable had alone. Successive five day …

Ethiopia’S High Childhood Undernutrition Explained: Analysis Of The Prevalence And Key Correlates Based On Recent Nationally Representative Data, Tafere Gebreegziabher Belay, Nigatu Regassa

All Faculty Scholarship for the College of the Sciences

Objective

To examine the contribution of child, maternal and household factors in stunting, wasting and underweight among children under 5 years in Ethiopia. Design

Quantitative cross-sectional design based on nationally representative data. Setting

Urban and rural areas of Ethiopia. Participants

Younger (0–24 months; n 4199) and older age groups (25–59 months; n 5497), giving a total of 9696 children. Results

Among the younger age group, 29 % were stunted, 14 % were wasted and 19 % were underweight; and among the older age group, the prevalence of stunting, wasting and underweight was 47, 8 and 28 %, respectively. Being female, …

An Iterative Process For Training Design And Implementation Increased Health Workers' Knowledge For Taking Nutrition Behavior Change To Scale, Wendy Gonzalez, Anabelle Bonvecchio Arenas, Armando García-Guerra, Mireya Vilar-Compte, Alejandría Villa De La Vega, Laura Quezada, Cynthia Rosas, Ana Lilia Lozada-Tequeanes, Amira Hernández

Department of Public Health Scholarship and Creative Works

The shortage of skilled, motivated, and well-supported health workers is a major barrier to scaling up nutrition interventions and services. Objective: The objective of this study is to describe the process for developing and implementing a training of health personnel for the delivery of the Integrated Strategy for Attention to Nutrition (EsIAN), an evidence-based strategy for promoting infant and young child feeding through primary health care in Mexico. The specific objective is to provide a case study and highlight challenges, as well as elements to successfully mitigate these, and discuss potential applications of findings beyond the Mexican context. Methods: The …

A Comparative Analysis Of The Fermentation Capabilities Of Various Bifidobacterium Strains, Ella Oney

Honors Program: Senior Projects (Public)

Bifidobacterium is a genus of anaerobic bacteria that are commonly found to inhabit the gastrointestinal tract of many members of the animal kingdom. These microorganisms are adapted to obtain their carbon from the breakdown of complex carbohydrates. Marmosets, a mammal whose gut microbiome is inhabited by high levels of Bifidobacteria, consume gum Arabic as a major part of their diet. The purpose of this experiment is to determine whether Bifidobacterium strains isolated from the guts of marmosets are able to degrade and ferment this complex carbohydrate or one of its main constituents, arabinose. This was accomplished by inoculating isolates of …

Formation And Regulation Of 1,2-Dicarbonyl Compounds And Ages In Steamed Cakes, Lu Yongling, Lu Min, Wang Xi, Lv Lishuang

Food and Machinery

In view of the formation of harmful products of Maillard reaction in baked foods, different recipes of steamed cakes (sugar type, oil type, cake acidity regulator and the ratio between egg white and yolk) were selected to analyze the changes of glyoxal (GO), methylglyoxal (MGO) and advanced glycation end products (AGEs) in cakes, and the inhibitory effects of natural flavonoids (geneistein and luteolin) were investigated. The results showed that fructose (hexacarbohydrate) produced the highest MGO, xylose (pentose) produced the highest GO, GO and MGO contents were the lowest in cakes produced by xylitol; The influence of oil on the production …

Stress Model And Fluid Solid Coupling Simulation Ofmicrocapsule In Simulated Intestine, Li Xiao, Yu Jinghu, Qian Shanhua, Cao Shu

Food and Machinery

The theoretical of the stress of capsule was analyzed in viscous liquid environment. and studied the dynamic characteris-tics of magnetic drive capsules with different sizes of round and oval heads under fluid-solid coupling in intestinal environment. The effects on the capsule exercise stress were also studied from the gut dynamic viscosity, the capsule size and capsule shape by COMSOL. According to the principle of similar mechanical properties, using superelastic solid material, the intestinal fluid model and the intestinal wall model were designed by multiple factors and levels of numerical simulation experiments. Results: At the same level of dynamic viscosity and …