Food Science Commons^™

Effect Of Bromelain On Duck Breast Meat Tenderization, Ahmet Buyukyavuz

All Theses

ABSTRACT This study was conducted to determine the effect of bromelain on duck breast meat tenderization. Duck breasts were marinated with different concentrations (0, 1.5, 3 and 4.5%; C2, B1.5, B3 and B4.5, respectively) of bromelain and a solution composed of 92% refrigerated water, 6% salt and 2% sodium tripolyphosphate by using a vacuum food tumbler machine. A second non-marinated control (C1) was also included. Marination tumbling was operated at 8 RPM for 8 minutes. Physico-chemical and quality parameters were determined on raw and cooked samples. A significant reduction (p<0.05) in pH was observed in all bromelain treated samples when compared to C2. Although there was a significant reduction in pH of B1.5 when compared to C1, there was no significant difference among B3, B4.5 and C1. A significant increase was observed in water holding capacity of B3 and B4.5 when compared to C1. While a significant reduction was observed in lightness (L*), no differences were observed in redness (a*) and yellowness (b*) values of marinated samples (C2, B1.5, B3 and B4.5) when compared to C1. However, a significant increase in lightness (L*), and a significant decrease in redness (a*) and yellowness (b*) were observed in cooked bromelain treated samples. No differences were observed in razor shear forces, moisture content and water activity between treatments. There was no significant difference in cook yield of all marinated samples (C2, B1.5, B3, and B4) when compared to the C1. A significant reduction (p<0.05) in Warner-Bratzler shear force values was observed in all marinated samples when compared to untreated control (C1). Based on results, use of bromelain in marination solutions under the conditions tested here would not be cost effective.

Comparison Of Simultaneous Distillation And Extraction (Sde) And Headspace Solid Phase Microextraction (Spme) For Determination Of Volatiles Of Muscadine Grapes (Vitis Rotundifolia), Pei-Ching Lin

All Theses

Vitis rotundifolia also called 'Muscadine' grows abundantly throughout the southeastern United States. Muscadine grapes have desirable flavors, making them suitable to be either consumed as fresh fruit or made into wine and jam. Moreover, muscadine grapes have been reported containing rich complex phytochemicals, including anthocyanins and polyphenols that possess antioxidant, anti-cancer, anti-inflammatory and antimicrobial activities. Therefore, muscadine grapes have become increasingly popular in recent years due to its unique aroma, as well as health benefits. Various volatile compounds contribute to the aromatic flavors of muscadine grapes. In regards of their low concentrations, conventional simultaneous distillation and extraction (SDE) and solid …

Stability Of Nano-Encapsulated Rice Bran Derived Bioactive Pentapeptide In Apple Juice, Fatima Mohammed Alessa

Graduate Theses and Dissertations

Cereal grains and their components derived Bioactive compounds such as rice bran can promote health and can be derived from Rice bran contains 12-20 % protein and could be a good source for extracting bioactive peptides. A pentapeptide with a secqunce of amino acids Glu-Gln-Arg-Pro-Arg (EQRPR) has been prepared from heat stablized defatted rice bran (HDRB) and has demonstrated anti-cancer proprerties in-vitro. This bioactive pentapeptide can thus be used as a nutraceutical by incorporating it into a suitable food system. Fruit juces can be vehicles to incorporate this pentapeptide. Fruit juices contribute to about 60% of the consumed beverages in …

Chitosan Reduces Enteric Colonization Of Campylobacter In Young Chickens, But Not On Post-Harvest Chicken Skin Samples, Hanna Royce Arambel

Graduate Theses and Dissertations

Worldwide, Campylobacter is one of the leading causes of foodborne bacterial gastroenteritis causing an estimated 1.3 million infections in the United States alone. Consumption and/or cross-contamination of raw or undercooked poultry products have been linked as the most common source of Campylobacter infection, making the poultry industry a target for Campylobacter reduction strategies. Campylobacter is prevalent in most poultry flocks in the United States, with as many as 90% of flocks Campylobacter-positive at the time of slaughter. It is estimated that a reduction of Campylobacter in poultry would greatly reduce the risk of campylobacteriosis in humans. Unfortunately, there are …

Milling And Functional Properties Of Co-Mingled Rice Cultivars, Nikhil N. Basutkar

Graduate Theses and Dissertations

Differences have been observed in the milling and functional properties of different rice cultivars, particularly between hybrid and pureline cultivars. Co-mingling of rice cultivars commonly occurs during harvest, storage and drying operations. Thus, there is a need to study the effect of co-mingling on the milling and functional properties of rice cultivars. Two long-grain, hybrid (H) cultivars CL XL745 and CL XL729 and two long-grain, pureline (P) cultivars CL 151 and Wells were used to prepare CL XL745/CL 151 (H/P), CL XL745/CL XL729 (H/H) and Wells/CL 151 (P/P) co-mingles, mixed in various proportions. Milled rice yield (MRY), head rice yield …

Effect Of Limit-Fed Co-Product Feedstuffs On Production, Digestion, Fermentation And Rumen Function In Beef Cattle, William Brandon Smith

Graduate Theses and Dissertations

In terms of energy density, the cost of shipping hay is often not justified in yr where adverse conditions limit available forage. Our objective was to determine if co-product feedstuffs could be used to meet the energy demands for cows in late pregnancy. Eighty-six crossbred cows (527 ± 0.8 kg BW) in late gestation were stratified by BW, BCS and age and allocated randomly to 1 of 6 groups held on 2-ha dormant bermudagrass pastures for 68 d. Three groups were offered bermudagrass hay ad libitum (HAY) and three groups were offered 6.4 kg of soybean hulls (LSH) daily and …

Investigation Of Rice Bran Derived Anti-Cancer Pentapeptide For Mechanistic Potency In Breast Cancer Cell Models, Ruiqi Li

Graduate Theses and Dissertations

Bioactive peptides derived from food sources with anti-proliferative properties against cancer have drawn more attention in recent years. A pentapeptide derived from rice bran has shown anti-proliferative propertiesagainst human breast cancer cells. The objective of this study was to investigate the mechanistic action of the pentapeptide-induced apoptosis in breast cancer cell models (MCF-7 and MDA-MB-231). The growth inhibition activity of the pentapeptide was

evaluated by MTS[3-(4,5-dimethylthiazol-2-yl)-5-(3- arboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium, inner salt] assayand trypan blue assay in a dose- and time-dependent manner.

The apoptotic properties of pentapeptide-induced apoptosis on cancerous breast cells were evaluated by morphological changes, DNA fragmentation, and caspases-3/7, -8,and -9 …

Effects Of Processing And Packaging Modifications On The Quality And Shelf Life In Meats, Abdulla Khan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Shelf life of foods, mainly meat and meat products, is affected by its physical and chemical properties like color, pH, water holding capacity etc. In developed countries
food losses occur at production, retail and consumer levels with meat commodities accounting for 41% of the total loss in US during 2008. These losses are because of
spoilage due to inappropriate packaging, improper storage conditions, food wastage, and lack of consumer awareness. By focusing on shelf life and quality issues at the production level, we can overcome some of the major problems faced by the food manufacturers.

Active packaging is an innovative …

The Triad Trial: Online Education For Coaches On The Prevention Of The Female Athlete Triad, Megan Jane Ostler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

High school coaches play a huge role in establishing a healthy environment for their athletes and often students. The coach‐athlete relationship has proven to be a strong and useful bond in prevention of adverse behaviors of athletes or in prevention of health problems such as concussions. The female athlete triad (triad) is a common health problem among female athletes. Many high school coaches are unaware of the triad or the serious health and performance consequences for their athletes. The triad is a syndrome marked by 3 interrelated adverse effects: decreased energy availability, menstrual dysfunction, and decreased bone mineral density.

The …

Development, Implementation, And Evaluation Of A Media-Awareness Wellness Program For High School Students, Rachel Firmin Johnson

Honors Capstones

No abstract provided.

Precautionary Labelling Of Foods For Allergen Content: Are We Ready For A Global Framework?, Katrina J. Allen, Paul J. Turner, Ruby Pawankar, Steve Taylor, Scott Sicherer, Gideon Lack, Nelson Rosario, Motohiro Ebisawa, Gary Wong, E. N. Clare Mills, Kirsten Beyer, Alessandro Fiocchi, Hugh A. Sampson

Department of Food Science and Technology: Faculty Publications

Food allergy appears to be on the rise with the current mainstay of treatment centred on allergen avoidance. Mandatory allergen labelling has improved the safety of food for allergic consumers. However an additional form of voluntary labelling (termed precautionary allergen labelling) has evolved on a wide range of packaged goods, in a bid by manufacturers to minimise risk to customers, and the negative impact on business that might result from exposure to trace amounts of food allergen present during cross-contamination during production. This has resulted in near ubiquitous utilisation of a multitude of different precautionary allergen labels with subsequent confusion …

Effect Of Microwave Heating On The Migration Of Additives From Ps, Pp And Pet Container Into Food Simulants, Ruoyin Cai, Kereilemang Khana Mokwena Nthoiwa, Changfeng Ge

Journal of Applied Packaging Research

The main objective of this thesis is to test three different microwaving packaging materials that are the most common material in the market, viz. polystyrene (PS), polypropylene (PP), and polyethylene terephthalate (PET), migrated into four food simulant solutions. Four different simulant solutions were used based on the food type and FDA recommendations and regulations. These food simulants include vegetable pure oil, 3% (v/v) aqueous acetic acid, 15% (v/v) ethanol, and olive oil in the temperature of 100°C.Headspace gas chromatography with mass spectrometric detection (GC/MS) was used to determine the relative migration values from packaging materials into food by putting the …

Tracking Heat-Resistant, Sporeforming Bacteria In The Milk Chain: A Farm To Table Approach, Maricarmen Estrada Anzueto

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Sporeforming bacteria (such as Bacillus and Paenibacillus spp.) can survive pasteurization conditions (Collins, 1981) and grow in pasteurized fluid milk during refrigerated storage (Huck et al., 2008; Ivy et al., 2012), causing fluid milk spoilage and limiting the further extension of fluid milk’s shelf life (Fromm and Boor, 2004; Durak et al., 2006). Moreover, Bacillus and related genera have been found in raw milk, pasteurized milk and environmental samples from dairy farms, indicating that these organisms are ubiquitous in nature and can enter the milk chain from different sources (Huck et al., 2007b; Huck et al., 2008; Ranieri and Boor, …

Characterization Of Extraction Methods To Recover Phenolic Rich Extracts From Pinto Beans That Exert High Antioxidative Activities Using Response Surface Approach, Mohammed Aldawsari

Department of Food Science and Technology: Dissertations, Theses, and Student Research

The pinto bean has been linked to the prevention of multiple diseases due in large part to the presence of phenolic antioxidants, which are higher in beans than in many fruits and vegetables. These components deliver health properties beyond basic nutritional characteristics by scavenging free oxygen radicals. However, these benefits are most likely due to the ability of these chemically diverse phenols to impart greater protective properties as additives or synergists acting in combination. However, optimal parameters to isolate these compounds (in terms of ratios and types) from a given natural source are not known. Without this knowledge, understanding the …

Tpn Collaborative: Improving Network Wide Parenteral Nutrition Care, Christina Christianson Rd, Cnsc, Ldn, Anthony Buonanno Md, Mba

Clinical Nutrition Service

No abstract provided.

No Patient Left Behind, Courtney Bloom Rd, Ldn, Melissa Faura Rd, Ldn, Ann Flickinger Ms, Rd, Ldn, Karen A. Yerger Rd, Ldn

Clinical Nutrition Service

No abstract provided.

Teach-Back For Inpatient Nutrition Education: Mission Possible, Melissa Faura Rd, Ldn, Ann Flickinger Ms, Rd, Ldn, Katherine Lyle Ms, Rd, Ldn

Clinical Nutrition Service

No abstract provided.

Calculating Value- Added Services Of The Registered Dietitian, Melissa Faura Rd, Ldn, Ann Flickinger Ms, Rd, Ldn, Kathleen Hanuschak Rd, Ldn, Krysta Miller Rd, Ldn, Renee Selby Rd, Cnsc, Ldn

Clinical Nutrition Service

No abstract provided.

Alabama's Women In Agriculture: The Road To Gaps Harmonization And Global Addendum - Tuskegee's Walmart Initiative, Gertrude D. Wall, Walter A. Hill, Barrett Vaughan, Barbara Shipman, Assata Maat, Rose Hill, Shirley Tyson

Professional Agricultural Workers Journal

This paper shares challenges faced and overcome by four African American women on their 2013 journey to secure USDA’s Produce Good Agricultural Practices (GAPs) Harmonized Food Safety Standards with the Global Addendum (Global Markets Primary Production Assessments: GMPPA). Collaboration, consistent training, and technical support from the Tuskegee University Extension and Research staff, and the Small Farmers Agricultural Cooperative undergirded the preparation of the farms for GAPs Certification. The timely sharing of staff expertise and experience from commercial partners (Walmart, Purivida, C.H. Robinson, W.P. Rawls), and support from the USDA (Strike Force Initiative) were important contributors to the positive outcomes described. …

Case Study Of A Food Safety/Good Agricultural Practices (Gaps) Educational Program For Small And Limited Resource Produce Farmers, Barrett Vaughan, Audrey Zeigler, Gertrude D. Wall, Miles D. Robinson, William A. Hodge, Conrad O. Bonsi, Ntam R. Baharanyi, Walter A. Hill

Professional Agricultural Workers Journal

This case study examined methods used in a food safety/Good Agricultural Practices (GAPs) educational program with small and limited resource produce farmers in Alabama to assist them with obtaining certification. Two methods were used, namely, the identification of challenges to food safety certification and development of strategies to address the challenges, and the enlistment of educational methods to facilitate food safety certification. As a result, there were four challenges to food safety certification identified; needs for motivation, information, clarification, and resources. In addition, the educational methods enlisted included group meetings, instructional material distribution, individual farm instruction, and expert instruction. The …