Other Food Science Commons^™

Improvement Of Solubility, Stability, And Bioaccessibility Of Curcumin Using Colloidal Delivery Systems, Bingjing Zheng

Doctoral Dissertations

Curcumin is a yellow-orange crystalline substance found in certain foods (turmeric) that is claimed to exhibit a broad range of biological activities. Its application as a nutraceutical in functional foods and beverages is often limited by its relatively low solubility in aqueous media, its chemical instability, and its low bioavailability. Recent research suggests that colloidal delivery systems can overcome these hurdles and improve the efficacy and commercial value of curcumin in the food, supplement, and pharmaceutical fields. The purpose of this research was to develop colloidal delivery systems to improve the application of curcumin as a nutraceutical in foods.

First, …

Formation, Characterization, And Utilization Of Multilayer Nanoemulsions In Foods, Jorge L. Muriel Mundo

Doctoral Dissertations

Multilayer coatings have been proposed as a promising nanotechnology for improving the performance of emulsion-based products in numerous research fields. In foods, these multilayer coatings can be used to improve the encapsulation and protection of bioactive ingredients in delivery systems during storage and passage through the gastrointestinal tract (1, 2). Therefore, there is strong interest in understanding the formation, properties, and performance of these novel coatings. Multilayer coatings are formed by layer-by-layer electrostatic deposition of oppositely charged biopolymers, such as proteins and polysaccharides. A better understanding of the formation and properties of biopolymer multilayer coatings could lead to …

Formulation Of Coffee Extract As Polymeric Nanoparticles And Studying Their Potential Biological Activities, Nouran Sharaf

Theses and Dissertations

Coffee extract was prepared and optimized (by solvent extraction) and subsequently entrapped into PLGA nanoparticles using single emulsion-solvent evaporation method (using Design Expert software). Dynamic Light Scattering, Scanning Electron Microscope, Fourier Transform-Infrared Spectroscopy and Folin Ciocalteau assay were used to characterize the NPs and to aid in selecting the optimum formulation conditions. The optimized NPs were in-vitro evaluated for their antimicrobial (by agar-well diffusion method), antioxidant (by DPPH assay) and anticancer (by MTT assay) activities. Finally, the release rate study was conducted for the NP sample showing the highly promising results.

The succeeded NP sample, in terms of the most …

Obesity Prevention Toolkit To Combat Weight Gain Related To Sedentary Behavior And Dietary Habits In College Students: An Evidence-Based Project, Maria Amos, Martha Fuller

Doctor of Nursing Practice Final Manuscripts

Abstract

Background: Forty percent of the US population ages 20-39 are categorized as obese,

their BMI is over 30, and 35% of college age students are obese or overweight. Issues related to obesity cost the US $147 billion annually. Between 40%-50% of college students are reported to be inactive. Inactivity can lead to increased morbidity and mortality related to increased risks of cardiovascular disease, diabetes, hypertension, musculoskeletal issues, and depression. Providing dietary and physical activity education and access to nutritional information promotes behavior change in young adults.

Aims of Service Change: This evidence-based project proposal aims to provide a toolkit …

Vegetarian Diets, Maybe Not As Healthy As You Think, Darryl Goh, Debbie Chan, Merson Hoo, Ian Wong

Introduction to Research Methods RSCH 202

Many are approaching vegetarianism as a viable diet option in recent years, presuming that adopting a vegetarian diet would provide health benefits. This paper explores the possibilities of physical and mental effects that vegetarianism may have on humans and its extent by the use of regression analysis. To measure the possible impacts vegetarian diets may hold on both the physiology and physical aspects of humans, we have utilized the measures of life expectancy and prevalence of depression respectively. Cross-sectional data were examined from sources such as the World Health Organization, Our World In Data and the World Bank, with figures …

Evaluation Of Chili Pepper (Capsicum Annuum), Tiger Nuts (Cyperus Esculentus), And Turmeric (Curcuma Longa) As Sources Of Antioxidant Compounds For The Potential Of Antiaging-Like Activity, Chelsea Toyer

Theses

Aging is a natural process that living organisms go through as they become older. In humans and other animals, aging is accompanied by several morphological changes, including the formation of wrinkles. Wrinkles are also caused by various environmental factors such as excessive exposure to sun or pollution, and continuous sleep deprivation. These environmental factors cause oxidation of skin cells and the degradation of subcutaneous fatty acids, leading to the formation of wrinkles. Skin care and wrinkle treatment products are part of a multimillion-dollar industry. Plant-based products are an alternative method for treating wrinkles and premature aging. Several antioxidants naturally found …

Food Sensitivity In Individuals With Altered And Unaltered Digestive Tracts, Walker Carson

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

Immunoglobulin G (IgG) against food proteins has become the subject of much discussion with regards to its role in adverse food reactions. An estimated 20% of the population suffers from some type of food intolerance. Food sensitivity can present with a vast range of symptoms and severities. Diet can have a substantial impact on the wellbeing of individuals with diseases of the gastrointestinal tract, such as Crohn’s disease or ulcerative colitis. Incidentally, these diseases have been associated with elevated levels of food-specific IgG as well an increased likelihood of food sensitivity. The presence of food-specific IgG and food sensitivity in …

Preceptorship Within Accredited Nutrition And Dietetics Programs: A Pragmatic Mixed Methods Study, Angela K. Brekken

Dissertations, Theses, and Projects

The purpose of this pragmatic mixed-methods study was to identify the factors that impact a nutrition professional’s preceptorship decision and potential solutions to combat preceptor shortages within accredited nutrition and dietetics programs. Homan’s social exchange theory provided the theoretical framework that if perceived costs of preceptorship outweigh the perceived benefits, then the activity will cease.

Phase one of the study included an online mixed-methods questionnaire. Phase two included a qualitative focus group and interview with self-identified volunteers from phase one. Quantitative analysis through SPSS included descriptive statistics (means and standard deviations) and inferential statistics (one-way ANOVA). Qualitative data for both …

Bibliometric Analysis Of The 200 Most Cited Articles On Antioxidant From 1976-2020, Ghouse Modin Nabeesab Mamdapur Mr., Neelesh Kumar Nema Dr., Baby Kumaranthara Chacko Dr., Jose Paul Dr.

Library Philosophy and Practice (e-journal)

Antioxidant helps to reduce various disorders and control pathological conditions such as cancer, aging, cardiovascular disease, cataracts, immune system decline, and brain dysfunction etc. In this study, the top 200 highly cited articles (citations 327,657) with total 647 authors were retrieved from Elsevier’s Scopus database (105,440 hits) by the keyword “antioxidant” published across the worldwide for the timespan 1976-2020 years. The data were analysed through bibliometric indicators by using VOSviewer and biblioshiny tools to explore various parameters i.e. keywords co-occurrence, authors contribution, highly cited journals, affiliations/organization engaged and worldwide collaboration. In the year 2001 and 1996, maximum number of …

An Investigation Into Country Of Origin Labeling, Species Authentication And Short Weighting Of Commercially Sold Frozen Fish Fillets, April M. Peterson, Gabrielle E. Mcbride, Seeret K. Jhita, Rosalee S. Hellberg

Food Science Faculty Articles and Research

Proper labeling of seafood is important to prevent economic deception and protect public health. The goal of this research was to investigate prepackaged frozen fish for Country of Origin Labeling (COOL) compliance, species labeling, net weights/short weighting, and percent glaze. A total of 111 frozen prepackaged fish fillets were purchased from grocery stores in Southern California (USA). Samples were designated as COOL compliant if they displayed both procurement method and country of origin in accordance with COOL requirements. Species labeling was examined by comparing the species identified with DNA barcoding to the acceptable market names provided in the FDA Seafood …

Rejection Of African Indigenous Food: The Case Of Rwanda, Eugene Baraka

NUTR/GLST 498b: Global Research Experiences in Nutrition & Health

Rwanda has one of the highest stunting rates among children globally, and malnutrition remains one of the most pressing public health issues. Lack of diversified diets, due to colonialization and nutrition transition, is the leading cause of the double burden of malnutrition in the country where the progress to reduce undernutrition is slow and obesity rates are rapidly rising. Consumption of indigenous foods has proven to diversify diets, but very few studies have been conducted to assess which ones are available for consumption in Rwanda. The purpose of this study was to assess the availability and use of indigenous foods …

Pickle And Other Condiment Recipes From Backyard Farmer, Wayne C. Whitney, Sue Ann Gardner

Zea E-Books Collection

Compiled by Wayne C. Whitney, Extension Horticulturist University of Nebraska Extension Publication CC-245 (1972) With a new Preface by Sue Ann Gardner Here are the favorite pickle and other condiment recipes submitted by viewers of Backyard Farmer, a television program of the Extension Service, University of Nebraska College of Agriculture. On this program, questions pertaining to the home, yard and garden are answered by specialists in the areas of Horticulture and Forestry, Entomology, Plant Pathology and Agronomy. This publication resulted from an on-the-air request for pickle recipes. Some 536 recipes were received from interested viewers from Nebraska and surrounding states. …

The Effects Of Veganism On Endurance Running Performance, Wesley Toh, Kristle Ann Garcia, Ishwin Mann, Saw Caesar Htoo, Nor Natasha Amir

Introduction to Research Methods RSCH 202

With the growing interest in veganism and its potential health benefits to athletes, it is imperative to consider whether dietary practices could influence athletic performance. The purpose of this research is to find out whether veganism leads to a better performance in endurance runners. We also examine recent studies that attempt to highlight the positive and negative impacts of veganism on athletes’ health. This study adopts a similar framework to the Nutritional and Running High Mileage (NURMI) study, which aims to investigate the relationship between different diet types and running performance. 200 volunteers in Singapore will participate in a cross-sectional …

Consumer Likings Of Different Miracle Fruit Products On Different Sour Foods, Sung-Eun Choi, Jeff Garza

Publications and Research

Miracle fruit has a high potential as a healthy sweetening enhancer, due to its powerful antioxidant capacity and its unique ability to transform sour taste into sweet taste. The aim of this study was to analyze the effect of different miracle fruit products on the likings of different sour foods.In total, 200 healthy adults (women 55%, 18–65 years old) evaluated five sour foods (apple, goat cheese, lemonade, yogurt, pickle) before and after miracle fruit application. Four commercial miracle fruit products (pills-Y; G; M, powder-P) were randomly assigned to each panelist. The pre- and post-test likings for overall, flavor, texture, and …

Overview Of The Insect Food And Feed Industry, Daniel J. Seckman

Distance Master of Science in Entomology Projects

The entomophagy field is one that when you immerse yourself in it, you will feel like the entire world is talking about insects as food and feed. Yet, from the outside, the industry is virtually nonexistent. In the United States, the North American Coalition for Insect Agriculture (NACIA) is the leading organization dedicated to growing the insect food and feed sector. While the organization has grown extensively in recent years, most individuals in the food, feed, and entomological industry have never heard of the organization. The Wall Street Journal presents the annual Food Forum, which aims to “tackle the critical …

Lemongrass (Cymbopogon Citratus) Ethanolic Extract Exhibited Activities That Inhibit -Glucosidase Enzymes And Postprandial Blood Glucose Elevation, Maria Dewi Puspitasari Tirtaningtyas Gunawan Puteri, Felicia Melissa Tjiptadi, Phebe Hendra, Filiana Santoso, Zalinar Udin, Nina Artanti, Florence Ignatia Florence Ignatia

Makara Journal of Science

Lemongrass is a common ingredient in Indonesian traditional herbal medicine that potently inhibits carbohydrate hydrolysis. In this study, the in vitro α-glucosidase inhibitory (AGI) activity of lemongrass was compared with its in vivo activity to retard postprandial blood glucose elevation, and the bioactive compounds responsible for these activities were observed. Both water and ethanolic extracts of lemongrass (WLG and ELG, respectively) were tested in vitro for its inhibition of the sucrose and maltose hydrolyzing activities of rat intestinal glucosidase. ELG was observed to exert higher inhibitory activities (Sucrase IC₅₀ = 8.74 mg/mL; Maltase IC₅₀ = 18.93 mg/mL) than …

Effect Of Jackfruit-Derived Extract Consumption On Colitis-Associated Colon Tumorigenesis In Mice, Jingwen Lin

Masters Theses

Colorectal cancer is the third most common cancer and the fourth most common cause of cancer-related death in the world. The global burden of colorectal cancer is also expected to increase by 60%, to over 2.2 million new cases and 1.1 million annual deaths, by the year 2030. Jackfruit is known for its packed nutrition including many antioxidants: vitamin C, carotenoids and flavanones. It has also been used in traditional medicine due to its potential protection against many chronic diseases. However, there is limited research studying the potential effect of jackfruit on colorectal cancer. Here, we used a well-established AOM/DSS …

Effects Of Tempeh Fermentation On Soy Free And Bound Phenolics: Release, Transformation, And Stimulated Production, Amadeus Driando Ahnan

Doctoral Dissertations

The fermentation of tempeh, a traditional source of protein originated in Indonesia, has been reported to enhance the health-promoting potentials of various grains, legumes, and beans. Tempeh fermentation on soybeans can modulate the bioavailability of phenolic compounds, particularly isoflavones, bioactive compounds that have been found to be protective against lung, prostrate, and colon cancers. However, the mechanism of the protective benefits was unknown.

Using whole-food and in vitro models, this study addressed this research gap by investigating the effects of tempeh fermentation using various cultures on the compositions of soy free, bound, and minor phenolics, as well as their antioxidative, …

Analysis Of Titanium Dioxide Nanoparticles In Foods Using Raman Spectroscopic Techniques, Janamkumar Pandya

Doctoral Dissertations

Titanium dioxide (TiO2) and its nanoparticles (NPs) are widely used in various applications. Recently, the presence of TiO2 NPs in food and consumer products raised safety concerns to human health and the environment. The goal of this project is to explore the capability of Raman Spectroscopy in the analysis of TiO2-NPs and apply this technique for the analysis of TiO2-NPs in food and environmental samples. Two approaches, i.e. the ligand-based and the mapping-based, were evaluated. The ligand-based approach utilized the surface enhanced Raman scattering (SERS) property of the TiO2 NPs as a substrate to enhance the signal of a surface …

Adsorptive Surface Modification Of Cellulose Nanocrystals To Stabilize Nutraceuticals Loaded Lipid Carriers For Food Application, Avinash S. Patel

Electronic Theses and Dissertations

Lipid carriers such as emulsions and liposomes have been widely studied as carriers for different nutraceuticals. However, lipid carriers' physicochemical instability results in the leakage of loaded nutraceuticals and the low solubility into the digestion medium, thus reducing the bioaccessibility. Cellulose nanocrystals (CNC) are nano-sized cellulose derivatives obtained after hydrolysis of cellulosic matrices that possess potential applications in functional foods and nutraceuticals. However, hydrophilicity, anionic surface potential, and poor re-dispersibility limit CNC’s applications. The primary objectives of this research were 1) to modify CNC via adsorbing polyethylene glycol (PEG) to stabilize liposomes and to study its physiochemical stability at different …