Life Sciences Commons^™

Changes In Tenderness And Collagen Of Beef Semitendinosus Muscle Heated At Two Rates, Marjorie Porter Penfield

Doctoral Dissertations

Tenderness, an important quality attribute of meat, is affected by many factors, including rate of heating. The purpose of this investigation was to study the changes occurring in beef semitendinosus muscle and intramuscular connective tissue heated at rates comparable to oven roasting at 93 and 149°C. The sequence of changes occurring during heating was followed by evaluating samples heated to four end points, 40, 50, 60, and 70°C. Cores of meat and isolated connective tissue samples in buffer were heated in a water bath "programmed" to produce the desired rate of heating.

As internal temperature increased Warner Bratzler shear values …

Protein-Phospholipid Interactions In Heated Phospholipid Emulsions Containing Bovine Myoglobin Or Sarcoplasmic Proteins, Sharon Lynn Melton

Doctoral Dissertations

A simplified procedure for determination of myoglobin concentration in aqueous muscle extract was developed. The procedure was used in an investigation of possible interactions between phospholipids and bovine myoglobin, either isolated or as a component of sarcoplasmic proteins. Investigation of the possible interactions was carried out as follows. Solutions containing myoglobin or sarcoplasmic proteins and emulsions (phospholipid, sarcoplasmic protein-phospholipid, and myoglobin-phospholipid) were heated from 25°C to end point temperatures up to 77°C. The following measurements were made on all protein dispersions; (1) pH; (2) percent protein remaining dispersed; (3) myoglobin concentration; (4) available lysine, basic group and acidic group equivalents …

Fluometuron And 2,4,5-T Residues In Soil, Sediment, Runoff Water, And Percolation Water, Glenn Gray Davis

Doctoral Dissertations

The rates of disappearance of 1,1-dimethyl-3-(a, a, a-trifluoro-m-toly1) urea (fluometuron) and the propylene glycol butyl either esters and a triethylamine salt of (2, 4, 5-trichlorophenoxy) acetic acid (2, 4, 5-T) from the application site in field plots and lysimeters were determined. Residual herbicide concentrations were estimated for field plot soil, runoff water collected in the plots after rainfall, and permanently impounded drainage water from the plots. Bioassays, spectrophotometry, and gas-liquid chromatography were utilized to detect residual concentrations of the three compounds. Linear and multicurvilinear equations were developed from known concentrations of the herbicide for predictions of residue amounts …

Seasonal Food Habits Of European Wild Hogs (Sus Scrofa) In The Great Smoky Mountains National Park, Charles D. Scott

Masters Theses

This study was conducted on the Tennessee side of the Great Smoky Mountains National Park from the fall of 1971 to the spring of 1973. Seasonal food habits information of the European wild hog (Sus scrofa) was obtained by the analyses of stomach contents.

Hogs ate primarily plant material in all seasons. Grasses (Gramineae) were the most important food item in the spring. Grasses were important to hogs in the summer, as were the fruits of Gaylussacia sp., Vaccinium sp., and Malus sp. Roots were the major food item in the fall and winter months, although the mast …

Seasonal Food Habits Of European Wild Hogs (Sus Scrofa) In The Great Smoky Mountains National Park, Charles D. Scott

Masters Theses

This study was conducted on the Tennessee side of the Great Smoky Mountains National Park from the fall of 1971 to the spring of 1973. Seasonal food habits information of the European wild hog (Sus scrofa) was obtained by the analyses of stomach contents.

Hogs ate primarily plant material in all seasons. Grasses (Gramineae) were the most important food item in the spring. Grasses were important to hogs in the summer, as were the fruits of Gaylussacia sp., Vaccinium sp., and Malus sp. Roots were the major food item in the fall and winter months, although the mast …

An Audio-Tutorial Diet Instruction Program For The Educationally Disadvantaged Hemodialysis Patient, Virginia King Lawson

Masters Theses

Four 10-13 minute color video-tape cassettes were developed and used as a self instructional program. The cassettes were designed to reinforce the initial one-to-one therapeutic diet instruction which is routinely given by the hospital dietitian to maintenance hemodialysis patients. The tapes were shown to the subjects used in this study while they were receiving dialysis therapy in The University of Tennessee Artificial Kidney Center.

One cassette each was prepared pertaining to the dietary adjustments for protein, sodium and fluids, potassium and kilocalories. The content of the tapes was primarily directed to the needs of the educationally disadvantaged, thus obviating the …

Food Preservation Practices Used By Selected Homemakers In Hancock County, Tennessee, Doris Ellen Phillips

Masters Theses

Food preservation practices of Home Demonstration Club (HOC) and Expanded Foods and Nutrition Education Program (EFNEP) homemakers and environmental factors possibly influencing these practices were studied. An interview schedule was used.

As a combined sample, 96% of the HDC and EFNEP homemakers participated in some form of food preservation. The percentages of homemakers using the various methods of food preservation differed with over 50% canning, pickling, making jelly, and freezing.

Educational level, social participation score, and income were all higher for the HOC homemakers than the EFNEP women (P <0.01). Age of the homemaker and the number in the family were similar for the 2 groups.

The proportion of homemakers participating in the various forms of food …

Seasonal Variation In Prices Of Selected Tennessee Farm Commodities, University Of Tennessee Agricultural Experiment Station, B. R. Mcmanus, Ray Daniel

Bulletins

No abstract provided.

A Field Experience In Public Health Nutrition With The Nutrition Section Of The Florida Division Of Health, Mary Beth Lawler

Masters Theses

A description and analysis of a field experience in Public Health Nutrition with the Nutrition Section of the Florida Division of Health is presented in this thesis. The field experience was designed to provide an opportunity for the blending of academic knowledge with practical application in work situations.

An increased understanding of the total public health organization was achieved through conferences and interviews with public health professionals. The majority of the field experience was spent with the Migrant Project Nutrition Coordinator in a six county region in south central Florida. This opportunity afforded a chance for increased development of skills …

Costs And Returns Of Tennessee Producer-Organized Feeder Pig Sales, University Of Tennessee Agricultural Experiment Station, J. A. Brasher, Ray Daniel

Bulletins

No abstract provided.

Price Expectations Of Tennessee Farmers, University Of Tennessee Agricultural Experiment Station, C. M. Cuskaden

Bulletins

No abstract provided.

The Effects Of Dietary Supplements On Bone Density And Nutritional Status Of Elderly Women, Glenda Sue Thompson

Doctoral Dissertations

Seventy-six ambulatory women with a mean age of 68 years participated in a 12-month study of the effects of fluoride, with and without multivitamin and calcium phosphate supplements, on nutritional status including bone density. Mean daily nutrient intakes calculated from 4- to 7-day weighed food intakes were 15 19 kcal including 15% from protein and 36% from fat; others were 797 mg calcium, 1000 mg phosphorus, and 8.6 mg iron. Mean intakes by 59 women who were not receiving vitamin supplements were 5800 IU of vitamin A and 35 mg of ascorbic acid. Mean blood hemoglobin was 13.9 g/100 ml; …

Isolation And Characterization Of A High Energy Iron-Sulfur Protein From Mammalian Cells, Beth Feland

Doctoral Dissertations

A sulfur-containing protein (S-protein) was proposed to be an intermediate in the sulfation of cellular constituents containing ester sulfate after it was observed that S-protein isolated from the particulate fraction of the cell was unaffected by avitaminosis E, the stress of malathion intoxication or the level of inorganic sulfate in the diet. The present investigation was undertaken in an attempt to identify the cellular role of the S-protein in sulfate utilization.

The role of the S-protein as a possible intermediate in the sulfation of ester sulfates was determined using both a natural sulfate acceptor, mucopolysaccharide, and an artificial sulfate acceptor, …

Staffing Patterns Of Dietetic Clinics, Katherine Hooper Benson

Doctoral Dissertations

Responsibilities and time demands of the dietetic clinic staff within institutions containing dietetic internships were investigated. Information was obtained from a questionnaire and observation of the diet instruction time records at the Dietetic Clinic at The University of Tennessee Memorial Research Center and Hospital (UTMRCH). The sample consisted of 45 dietetic clinics whose directors returned the completed instrument.

The staffing patterns of the dietetic clinics varied widely. There was a broad range of educational levels, man-hours worked, and defined responsibilities in the department, institution and community of the personnel in the participating clinics. Time averages are presented for some responsibilities. …

The Effects Of Age And Acid Stress On Bone And Renal Responses Of Rats, Grace Kathleen Newell

Doctoral Dissertations

The effects of age and acid stress on bone and renal responses in rats were investigated. Albino, male weanling rats and male 10-month old retired breeder rats were maintained on a commercial laboratory chow until they were 4 months and 16 months of age, respectively, and then transferred to semi-synthetic experimental diets, containing either 500 mg or 100 mg calcium per 100 g diet, with or without 2% ammonium chloride as an acid stress. The rats remained on the experimental diets 9 months, that is, until the "young" animals were 13 months and the "old" ones were 25 months of …

Public Health Nutrition Field Experience With The Chattanooga-Hamilton County, Tennessee, Health Department In 1973, Charlotte Bickford Colvard

Masters Theses

This thesis describes and analyzes the student's seven weeks of field training within the Nutrition Service of the Chattanooga-Hamilton County Health Department. This experience provided the student with appropriate background experience for her future role as a public health nutritionist.

The field experience gives the student in public health nutrition an opportunity to work with allied health personnel under supervision and to apply the theories and principles of public health learned during the academic year to the practice of public health nutrition in the community. The experience was designed to strengthen the student's philosophy and practical understanding of public health …

A Field Experience In Public Health Nutrition With The Florida Division Of Health, Susan Morrill Fowlkes

Masters Theses

For her field experience in public health nutrition the student chose the Florida Division of Health as the official health agency. In the south central region of the state of Florida, she hoped to develop in her chosen profession by becoming actively involved in health programs. In this rural region of the state there is a need for health programs aimed at the various needs of the eight counties. The Florida Division of Health functions to meet the health needs of all counties in the state. The division is divided into bureaus and sections. The nutrition section works with many …

Food Acceptability As Affected By Fluorescent Lighting, Janice Ward Pafford

Masters Theses

This research was conducted to investigate food acceptability as affected by warm and cool fluorescent lights. Five food items were judged by college students on a cafeteria hot food line in Presidential Court Food Service at The University of Tennessee Knoxville. Choices of roast beef, hamburgers, green beans, mashed potatoes, and mixed vegetables held under cool and warm fluorescent lights were recorded.

All five foods lighted by a warm fluorescent tube were chosen in preference to the same foods lighted under a cool fluorescent light. The food preferences were significant at the 5% level between the two fluorescent lights when …

Observations And Experiences With The Nutrition Consultant Of The North Carolina Special Project For Comprehensive Maternal And Infant Health Care, Walter Paul Saraniecki

Masters Theses

This thesis describes and analyzes the author's training with the Nutrition Consultant of the North Carolina Special Project for Comprehensive Maternal and Infant Health Care. As a supplementary experience to the academic training in public health nutrition, the purpose of the field practice was to aid in strengthening the student nutritionist's philosophy and understanding of public health. Data for this thesis were obtained from a variety of personal conferences observations, participation, related literature and an original research project.

An original research project was undertaken to determine whether nutrition services as delivered by a team of home economists and homemakers under …

Soil-Solution Equilibration Parameters And Their Relationship To The Accumulation Of Potassium By Ryegrass, Samuel Kincheloe

Doctoral Dissertations

Three Tennessee soils (Hartsells, Maury and Grenada) were investigated with respect to the soil-solution equilibration parameters and the content of potassium in ryegrass grown in a greenhouse. The soils were fertilized with N, P and K which was varied from 0-100 ppm added to the soil. Two harvestings of ryegrass were made. The content of K, Ca and Mg in the ryegrass was measured. Soil samples were taken immediately following the first harvesting and subjected to the soil-solution equilibration technique. Two forms of equilibration curves resulted. Seven of the 33 equilibration curves were curvilinear in form, whereas the remaining 26 …

The Effectiveness Of Montessori Sensorial Materials With Preschool Children, Dorothy Raney Chitwood

Masters Theses

The purpose of this study was to compare the perception and sensorimotor development of preschool children who used specific Montessori sensorial materials. Based on the literature, it was assumed that; 1. Because of the development and accentuation of form and tactile stimulation in the preschool child, extensive use of Montessori equipment designed in form for tactile and visual exploration and learning would influence development of visual perception. 2. With the perceptual-motor training of the Montessori sensorial materials, the subjects would make gains in fine motor coordination.

It was hypothesized that the gains in scores on the Marianne Frostig Developmental Test …

Fish Fauna Of The Hatchie River System, Wayne Calvin Starnes

Masters Theses

This thesis reports the findings of an ichthyofaunal survey of the Hatchie River system of northern Mississippi and southwestern Tennessee. This system represents the only drainage in that region which has not undergone large scale channelization, and it had previously been poorly collected. This survey was conducted mainly during August of 1972 with additional collections from other years also reported. Collections were made from the majority of streams in the entire drainage, and several methods were employed including seining, gill netting, trap nets, and the principal method, chemical application. A total of 108 collections is included, and the findings are …

A Study Of Relationships Among Bone Density, Urinary Hydroxyproline, And The Metabolic Balances Of Calcium, Phosphorus, And Nitrogen In Geriatric Women, Margaret Davies Macduff

Masters Theses

Relationships among bone density, urinary hydroxyproline (HOP), and the metabolic balances of calcium, phosphorus, and nitrogen were investigated in 16 elderly women.

The subjects resided at Eastern State Psychiatric Hospital, Knoxville, Tennessee. They ranged in age from 68 to 82 years with a mean age of 74. The consent of each subject and that of her nearest relative or guardian and of the medical staff of the hospital was obtained before participation in the study was permitted.

Twenty-four-hour urine and fecal samples and food samples, including snacks, were collected over a 7-day period. Weighed food consumptions of each subject were …

Hikers In The Great Smoky Mountains National Park - Their Attitudes, Characteristics, And Implications For Management, Gary C. Marsh

Masters Theses

The main objective of this study was to obtain information about trail users, primarily hikers, in the Great Smoky Mountains National Park (GSMNP), which would aid decision-makers in managing the wilderness resource for optimum benefits from hiking trails. I nformation was gathered by the use of a questionnaire to determine various socioeconomic characteristics of users, their motivations for hiking, and their attitudes toward trail use and management within the GSMNP.

The questionnaire was administered in a personal interview with respondents as they were hiking on selected trails within the park. Five-hundred and fifty-eight interviews were completed at eleven sampling locations …

Costs Of Manure Disposal On Dairy Farms In Tennessee, University Of Tennessee Agricultural Experiment Station, Harry A. Henderson, Larry L. Bauer

Bulletins

No abstract provided.

Grade A Dairy Operators: Factors Related To Financial Growth, University Of Tennessee Agricultural Experiment Station, B. R. Mcmanus, Ingram B. Howard Jr.

Bulletins

No abstract provided.

Estimating Pork Carcass Values, University Of Tennessee Agricultural Experiment Station, Warren C. Couvillion Sr., Irving Dubov

Bulletins

No abstract provided.

The Influence Of Initial Cow Weight On Progeny Performance And Tdn Efficiency In Production Of Slaughter Cattle, James Burkett Neel

Doctoral Dissertations

Data utilized in this study were from records (collected over a two-year period) of 45 Angus cow-calf pairs in which both the individual TDN consumption of the cows over a twelve month period and the individual TDN consumption of the calves from birth to slaughter (excluding TDN provided by milk) were recorded. The objectives of this study were to determine total digestible nutrient (TDN) consumed by cows of various sizes and weights, to determine the TDN intake of both cow and calf per unit weight of slaughter calves which varied in growth potential, to establish weights at which maximum TDN …

Phospholipid Content Of Beef Biceps Femoris As Affected By Cooking, Carolyn Jean Lackey

Masters Theses

Differences in phospholipid class distribution in raw and cooked meat and drip have been of interest to researchers at The University of Tennessee, Knoxville. The present research was performed to determine if such differences result from partitioning.

Drip lipid was found to have significantly higher cephalin content and lower lecithin content than raw or cooked biceps femoris muscle lipid. Correspondingly, cooked muscle lipid had significantly lower cephalin and higher lecithin content than raw muscle or drip lipids.

Evidence of partitioning was to be obtained through data conversion from percentage basis to absolute amounts. However, several developments possibly related to experimental …

Public Health Nutrition Field Experience With The Sullivan County, Tennessee, Health Department In 1972, Anita Weinbren Miller

Masters Theses

This thesis is based upon observations and experiences during seven weeks of field training with the Nutrition Division of the Sullivan County Health Department in Tennessee. The purpose of the field training was to supplement academic training in public health nutrition at the University of Tennessee.

The field experience and the preparation of this report provided an opportunity for the student to evaluate the health needs of Sullivan County and to observe the public health program, particularly the public health nutrition program, that had been planned to meet those needs. Information was obtained on the history of Sullivan County and …