Food Science Commons^™

Attracting Consumers With Locally Grown Products, Food Processing Center

Food Processing Center: Reports

This report summarizes the initial findings of a survey of 500 households in the states of Nebraska, Iowa, Missouri and Wisconsin. The primary grocery shopper in the household was surveyed for their attitudes and opinions on locally grown and produced food, organic and all-natural food and meat purchasing behaviors.

To access a respondent’s purchasing behavior, each respondent was asked to rank the importance of twelve attributes in determining the product or brand they purchase. The attributes most important to consumers in the region* include taste, quality, nutrition/healthfulness, and price. Seven in ten respondents said that it was very or extremely …

Organic Vegetables : A Guide To Production, Steven Mccoy

Bulletins 4000 -

There appears to be considerable opportunity for the development of organic vegetable production in Western Australia for either fresh or processed product. While a number of growers are successfully producing relatively small quantities of organic vegetables for both domestic and export markets, few large scale commercial growers have sought to capitalise on this opportunity.

Consumer interest in organically grown vegetables has increased rapidly in recent years due largely to concerns relating to food safety, health and the environment. For more information on markets for organic vegetables refer to AGWEST publication “Market Prospects – Organic Carrots and other Vegetables”.

Women Involvement In Food Crop Production, Processing And Marketing In Nigeria, Abiola O., Omoabugan O. B.

Bullion

The paper examines the extent of involvement of women in food crop production, processing and marketing in a typical African locality. Appropriate statistical techniques were employed in the data analyses. The findings show that women are greatly involved in the production, processing and marketing of food crops, especially cassava, which is one of the staple foods in sub-Saharan Africa.

Studies On The Formation Of Dna-Cationic Lipid Composite Films And Dna Hybridization In The Composites, Murali Sastry, Vidya Ramakrishnan, Mrunalini Pattarkine, Krishna N. Ganesh

Faculty Works

The formation of composite films of double-stranded DNA and cationic lipid molecules (octadecylamine, ODA) and the hybridization of complementary single-stranded DNA molecules in such composite films are demonstrated. The immobilization of DNA is accomplished by simple immersion of a thermally evaporated ODA film in the DNA solution at close to physiological pH. The entrapment of the DNA molecules in the cationic lipid film is dominated by attractive electrostatic interaction between the negatively charged phosphate backbone of the DNA molecules and the protonated amine molecules in the thermally evaporated film and has been quantified using quartz crystal microgravimetry (QCM). Fluorescence studies …

The Impact Of Hiv/Aids On Food Production (Focusing Mainly On Rural Farms In Sub-Saharan Africa) And The Effects On The Supply, Demand, And Wages Of Farm Labor, Muhammad Zubair Qamar

Theses & Honors Papers

Utilizing empirical data from studies conducted mainly by international organizations, such as the UNAIDS and the Food and Agriculture Organization , the thesis aims to strengthen the hypothesis that the higher the frequency of HIVIAIDS, mainly in rural African farm communities, the higher the impact there is on food production. Moreover, the supply, demand, and wages of farm labor are also affected by HIV/AIDS. To give a background of the conditions of disease, the first part of the thesis gives an overview of the history of disease. The history and possible origins of HIV/AIDS are delved into, after …

Risk Factors Associated With Multiple-Gestation Pregnancies: Nutrition In Maternal And Infant Complications, Vallarie B. Nuttall

Undergraduate Honors Capstone Projects

This paper discusses the maternal and neonatal risk factors associated with multiple birth pregnancies. Nutrition implications associated with nutritional care of the high-risk infant and obstetric population are emphasized. Statistical information was gathered concerning the population growth of multiple births over the past twenty years. Literature to identify both maternal and neonatal risk factors associated with multiple gestation pregnancies was also reviewed. Studies conducted over the past twenty years have shown that there has been an increase (25%-50%) in the amount of twin births throughout the world. Studies indicate that this increase was actually greater in the U.S. when compared …

Phytochemicals And Health, Heather Rebecca Stone

Undergraduate Honors Capstone Projects

Objectives: Define phytochemicals as currently recognized in the United States and discuss food sources. Identify aims and challenges of current research. Review touted health effects of phytochemicals in cancer, cardiovascular disease (CVD), immune function, and other benefits. Present dietary recommendations. Methods: A literature search was conducted through Medline to find peer-reviewed journal articles from the past five years. Articles were found that identified the compounds and highlighted recent research relating phytochemicals to disease. The review of literature focused on an introductory understanding of phytochemicals. Results: Studies show that phytochemicals are undefined under current U.S. food regulations. They are biologically …

Biochemistry And Application Of Exopolysaccharide Production In Mozzarella Cheese Starter Cultures, Brent Petersen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study sought to investigate the role of the C₅₅ undecaprenol lipid carrier in the production of exopolysaccharide (EPS), the effect of exopolysaccharide producing (EPS⁺) starter cultures on the viscosity of Mozzarella cheese whey, and the possible protective characteristics of capsular EPS against freezing and freeze drying. Efforts to investigate the role of the lipid carrier in EPS production employed pAMbacA, a plasmid that encodes an enterococcallipid kinase that confers bacitracin resistance by increasing intracellular levels of undecaprenol phosphate lipid carrier. Unfortunately, this avenue of study was thwarted by the inability to demonstrate bacA …

Poorer European Countries Are Less Concerned About Biotechnology Than Richer Countries, Michael Siegrist

RISK: Health, Safety & Environment (1990-2002)

The author examines the relationship between GNP, media coverage, and public perceptions of the utility, risk, and acceptability of medical and food-related applications of biotechnology.

Review Of: Alan Mchughen, Pandora's Picnic Basket: The Potential And Hazards Of Genetically Modified Foods, Shimona Pratap Singh

RISK: Health, Safety & Environment (1990-2002)

Review of the book: Alan McHughen, Pandora's Picnic Basket: The Potential and Hazards of Genetically Modified Foods (Oxford University Press 2000).Acknowledgements, introduction, glossary and abbreviations, resources, index. ISBN 0-19-850674-0 [277 pp. $25.00 Cloth, 198 Madison Avenue, New York, NY 10016-4314].

Water-Resistant Degradable Foam And Method Of Making The Same, Gerald Biby, Milford Hanna, Qi Fang

Department of Food Science and Technology: Faculty Publications

A foam that is the extrudate of a mixture of a biodegradable polymer, starch, talc, and a blowing agent is provided. This foam is made by extruding a mixture of the above-listed components. This foam is water-resistant and in some variations waterproof making it an effective packing material. Still further, this foam is biodegradable, and thus, it can be disposed without creating environmental waste. In addition, the foam may be extruded into sheets and then therm-formed to form various articles.

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Correlating Fissure Occurrence To Rice Quality For Various Drying And Tempering Treatments, Monica J. Jimenez, Terry J. Siebenmorgen, A. G. Cnossen

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

When a rice kernel fissures, it can break in subsequent food processing operations and lose its commercial value. Head rice yield (HRY) is a measure of the percent of kernels that remain whole (at least three-fourths of original length) after rice has been milled. Our experiment was designed to test the effect of a rapid state transition during drying and tempering processes using cultivars Bengal and Cypress. ‘Bengal’ is a medium-size kernel and ‘Cypress’ is a long-size, thinner grained cultivar. Immediately after drying, the rice samples were separated into four sub-samples and tempered for 0, 80, 160, or 240 minutes …

Prediction Of Rice Texture From Starch Profiles Measured Using High-Performance Liquid Chromatography, Hazel Fromm, J. F. Meullenet

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Starch determines a large proportion of the textural properties of cooked rice. The amylose: amylopectin ratio plays a significant role in the functionality of native starch. In this study a medium-grain rice cultivar, ‘Bengal’, was used for starch structure characterization using high performance size-exclusion chromatography (HPSEC). This cultivar is characterized by having lower amylose content (15% to 20%) than long grain cultivars and being sticky when cooked, similar to short-grain cultivars. Rice samples were harvested in 1999 from five locations around Arkansas at state verification trials where cultural practices are closely monitored. Samples of this cultivar stored at a specified …

Letter From The Dean, Gregory J. Weidemann

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Western Australia Soil Acidity Research And Development Update 2001 : Time To Lime, Department Of Agriculture And Food, Western Australia

Bulletins 4000 -

This book for 2001 again summarises the work being carried out by staff of The Integrated Soil Acidity Research, Development and Extension projects in Western Australia. These projects are based at Agriculture Western Australia, The University of Western Australia and CSIRO.

Several articles in this book are an indication that the current round of funding for this work is drawing to a close in June 2002. The articles reflect our increasing understanding of not only the effects of soil acidity but also the time required for current practices of surface applied lime to ameliorate acidity in both the surface and …

An Investigation Of The Prevalence Of Disordered Eating Behaviors In Dietetic Students, Brandi Elizabeth Hicks

Theses, Dissertations and Capstones

Eating disorders are a debilitating mental illness that affects young people including those in the field of dietetics. Literature suggests that dietetic students have a higher prevalence of eating disorders than other students. Seventy-seven college student in Southern West Virginia enrolled in either dietetics or another major were included in a sample to determine if dietetic students have higher prevalence of disordered eating attitudes and behaviors. The participants completed a survey that included a general information section, a 26-item questionnaire concerning eating attitudes, and a behavioral information section. Upon completion of data collection, the survey was coded, and data was …

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 2 2001, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Table Manners That Matter, Margie P. Memmott

All Archived Publications

No abstract provided.

Cationic Surfactant Mediated Hybridization And Hydrophobization Of Dna Molecules At The Liquid/Liquid Interface And Their Phase Transfer, Murali Sastry, Ashavani Kumar, Mrunalini Pattarkine, Vidya Ramakrishnan, Krishna N. Ganesh

Faculty Works

Hybridization of complementary oligonucleotides mediated by a cationic surfactant at the water/hexane interface leads to hydrophobic, double-helical DNA which may be readily phase transferred to the organic phase and cast into thin films on solid substrates.

Submerged And Solid-State Phytase Fermentation By Aspergillus Niger: Effects Of Agitation And Medium Viscosity On Phytase Production, Fungal Morphology And Inoculum Performance, Maria Papagianni, Sue E. Nokes, Keith Filer

Biosystems and Agricultural Engineering Faculty Publications

Qualitative relationships between agitation levels and medium viscosity, Aspergillus niger morphology and phytase production were investigated in submerged and solid-state fermentations. Overall phytase production increased with increasing shaker speeds from 150 to 300 rpm, although specific growth rates and phytase production rates were higher at 150 rpm for 72 h from inoculation. Fungal morphology was greatly influenced by agitation with the morphological forms of small pellets and entangled mycelia predominating at 150 rpm, while the free filamentous form was obtained at 300 rpm. Upon inoculation of SSF, increased productivities were obtained from inocula grown at 150 rpm. A shift towards …

Ancestral Divergence, Genome Diversification, And Phylogeographic Variation In Subpopulations Of Sorbitol-Negative, Β-Glucuronidase- Negative Enterohemorrhagic Escherichia Coli O157, Jaehyoung Kim, Joseph Nietfeldt, Jingliang Ju, John Wise, Narelle Fegan, Patricia Desmarchelier, Andrew K. Benson

Department of Food Science and Technology: Faculty Publications

The O157:H7 lineage of enterohemorrhagic Escherichia coli is a geographically disseminated complex of highly related genotypes that share common ancestry. The common clone that is found worldwide carries several markers of events in its evolution, including markers for acquisition of virulence genes and loss of physiological characteristics, such as sorbitol fermentation ability and β-glucuronidase production. Populations of variants that are distinct with respect to motility and the sorbitol and β-glucuronidase markers appear to have diverged at several points along the inferred evolutionary pathway. In addition to these variants, distinct subpopulations of the contemporary non-sorbitol-fermenting, β-glucuronidase-negative O157:H7 clone were recently detected …

Attitudes Towards And Beliefs About Nutrition And Health Among A Random Sample Of Adults In The Republic Of Ireland And Northern Ireland, John Kearney, Michael Gibney, Barbara Livinstone, Paula Robson, Mairead Kiely, Karen Harrington

Articles

Objectives: For effective healthy eating promotion, it is necessary to understand the attitudes towards and beliefs about nutrition of the general public. The objective of this study was to provide data on attitudes towards eating a healthy diet and the perceived need to alter eating habits from a random sample of adults in the Republic of Ireland and in Northern Ireland, using a self-administered questionnaire. Design: Cross-sectional survey using a self-administered attitudinal questionnaire on beliefs and attitudes to healthy eating. Setting: The survey was carried out between October 1997 and October 1999 in the Republic of Ireland and in Northern …

Development Of A Physico-Chemical Wastewater Treatment Strategy For A Chemical Plant, T. Alagarajah K. Thavarajah

Student Works (2000-2009)

A study was carried out to determine the physico-chemical treatment of the wastewater collected from a soap and detergent factory in Selangor, Malaysia. The study was initiated by determining the characteristics of the wastewater. Treatability studies involving coagulation and flocculation were determined by the jar test method. The parameters of interest were coagulant dosage, pH, mixing intensity, mixing time and settling time. The coagulants were restricted to alum and ferric sulfate and coagulant aids utilized were polyvinyl alcohol, sodium alginate and polycthylcninimine. An extended evaluation to determine the effect of double chemical treatment was also carried out with the most …

Related Enzymatic Activities In Solid-Substrate Fermentation Of Sago Hampas With Pycnoporus Sanguineus, Rifat Ara Matta

Student Works (2000-2009)

Solid substrate fermentation (SSF) of sago pith residue known as 'hampas' with Pycnoporus sanguineus for enzyme production was carried out. Good growth of Pycnoporus sanguineus in SSF was noted on 'hampas' supplemented with 0.38% urea, 0.2% KH₂PO₄ and 0.05% MgSO₄·7H₂O over a period of 30 days. Xylanase, lignin peroxidase and laccase activities were detected in Pycnoporus sanguineus cultures. Maximum xylanase and laccase activities of 5.26U/g of substrate on day 10 of SSF and 14.35U/g on day 15 of SSF of substrate were obtained respectively. The lignin peroxidase activity was less pronounced with an activity of 1.31 U/g of substrate on …

Development Of A Solid Phase Micro-Extraction-Gas Chromatographic Method For The Analysis Of Volatile Components In Vanilla Extracts And Flavourings, Tomislav Sostaric

Theses: Doctorates and Masters

Vanilla is a very important flavouring agent, it is used as a major ingredient in a number of food products. The taste and aroma results from a specific blend of components present in the extract. There are over 170 volatile components, which all contribute to the flavour of the extract. These volatile components can be present in trace amounts or in relatively high concentrations. The range and concentration of volatile components is somewhat characteristic of the vanilla extract and its origin. Due to the high cost and low availability of natural extract, nature-identical and synthetic flavourings are often used to …

Enzymatic Nixtamalization: An Improved Corn Masa Flour Production Process, Deepak Sahai, David S. Jackson

Department of Food Science and Technology: Public Access Records

A major concern during commercial masa or instant masa flour production is the proper disposal of the excess waste water generated from the nixtamalization process. Nixtamalization causes partitioning of corn solids between nixtamal and waste water. It has been estimated that corn solids loss during nixtamalization varies between 5-14% depending on corn type & quality. Nejayote waste is highly alkaline, with high chemical and biological oxygen demands (BOD & COD) and is considered an environmental pollutant. A typical corn nixtamalization facility processing 200 US tons of corn every day, uses over 50 gallons of water per minute and generates nearly …

Role Of ΣB In Adaptation Of Listeria Monocytogenes To Growth At Low Temperature, Lynne A. Becker, Stefanie N. Evans, Robert W. Hutkins, Andrew K. Benson

Department of Food Science and Technology: Faculty Publications

The activity of σ^B in Listeria monocytogenes is stimulated by high osmolarity and is necessary for efficient uptake of osmoprotectants. Here we demonstrate that, during cold shock, σ^B contributes to adaptation in a growth phase-dependent manner and is necessary for efficient accumulation of betaine and carnitine as cryoprotectants.

Modeling Of A Meat Cooking Process For On-Line Monitoring And Control, Oralia Garcia

Theses and Dissertations - UTB/UTPA

A heat transfer model is developed to predict cooking time of meat patties given the initial temperature of meat, oven temperature, and meat properties to monitor and control a cooking process on-line. Experiments were performed to find the cause of variability in cooked weight and raw temperature effects in forming and final cooked temperature. Advanced charting techniques concluded that only common causes of variability were present in the process. Thermal conductivity experiments were performed to determine the thermal conductivity of meat (k), which was compared with the properties of meat published in literature to validate the experiment. Oven design analysis …