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Food Science

2007

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Full-Text Articles in Life Sciences

Regional Body Composition In College-Aged Caucasians From Anthropometric Measures, Robert T. Davidson, Cameron B. Ritchie Dec 2007

Regional Body Composition In College-Aged Caucasians From Anthropometric Measures, Robert T. Davidson, Cameron B. Ritchie

Faculty Publications

Quantitating fat and lean tissue in isolated body regions may be helpful or required in obesity and health-outcomes research. However, current methods of regional body composition measurement require specialized, expensive equipment such as that used in computed tomography or dual energy x-ray absorptiometry (DEXA). Simple body size or circumference measurement relationships to body composition have been developed but are limited to whole-body applications. We investigated relationships between body size measurements and regional body composition. Methods Using DEXA technology we determined the fat and lean tissue composition for six regions of the body in predominantly Caucasian, college-aged men (n = 32) and ...


Effect Of The Co2 Grinding On Modified Atmosphere And Color Shelf Life Of Ground Beef, Sofiane Ghris Dec 2007

Effect Of The Co2 Grinding On Modified Atmosphere And Color Shelf Life Of Ground Beef, Sofiane Ghris

All Theses

Beef ground under air and carbon dioxide (CO2) conditions were evaluated for their storage stability at 2 ± 1¼C starting after 2 days in the dark to simulate transportation, followed by 7 days in lighted display by measuring color (CIE L*, a*, b*, the hue and chroma), gas headspace, microbiological content, and pigment content. AC (ground in air then packaged in 100% CO2 MAP) and CC (ground in CO2 then packaged in 100% CO2 MAP) treatments showed the highest a* and chroma values from day 3 to 9 compared with AV (ground in air then vacuum packaged) and CV (ground in ...


Development And Evaluation Of Instruments To , Patricia Michaud Dec 2007

Development And Evaluation Of Instruments To , Patricia Michaud

All Theses

The objectives of this study are to provide evidence for and demonstrate the processes used to develop and test tools to measure the effectiveness of a culinary and nutrition education program. This study initially involved a review of literature related to the environmental conditions for and components of nutrition education interventions featuring hands-on cooking skill activities. Based on this literature examination, the Cooking Attitude, Cooking Behavior, Produce Consumption Self-Efficacy, Cooking Self-Efficacy, Self-Efficacy for Using Basic Cooking Techniques, and Self-Efficacy for Using Fruits, Vegetables and Seasonings scales and the Knowledge of Cooking Terms and Techniques evaluation were developed. The Availability and ...


Fish Gelatin-Nanoclay Composite Film. Mechanical And Physical Properties, Effect Of Enzyme Cross-Linking, And As A Functional Film Layer, Hojae Bae Dec 2007

Fish Gelatin-Nanoclay Composite Film. Mechanical And Physical Properties, Effect Of Enzyme Cross-Linking, And As A Functional Film Layer, Hojae Bae

All Dissertations

The effect of clay content, homogenization RPM, and pH on the mechanical and barrier properties of fish gelatin/nanoclay composite films was investigated. The addition of clay increased the tensile strength (TS) from 30.31±2.37 MPa to 40.71±3.30 MPa. The nanoclay composite film had improved oxygen and water barrier properties when compared to neat fish gelatin film. Oxygen permeability decreased from 0.0004028±0.0000007 gm/m2dayatm to 0.0001144±0.0000162 gm/m2dayatm and the water vapor permeability decreased from 0.0312±0.0016 ngm/m2sPa to 0.0081±0.0001 ngm/m2sPa. The ...


Use Of Near-Infrared Spectroscopy For Qualitative And Quantitative Analyses Of Grains And Cereal Products, Panjama Cheewapramong Dec 2007

Use Of Near-Infrared Spectroscopy For Qualitative And Quantitative Analyses Of Grains And Cereal Products, Panjama Cheewapramong

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

The purpose of the first part of the study was to develop a simplified near-infrared reflectance (NIR) spectroscopy method for detecting insect larvae in individual wheat kernels. Discriminant analysis, based on Mahalanobis distances calculated from log 1/R data at only four discrete wavelengths, yielded better results for classification of sound and insect infested wheat kernels than principal component analysis (PCA) using the spectral region from 1100 to 1900 nm. This simplified technique was then used to detect 3- and 4-week-old larvae of granary and maize weevils in wheat kernels. A model developed from a calibration set containing sound kernels ...


Registered Dietitian Dress And The Effect Of Dietitian Dress On Perceived Professionalism, Connie Lynn Packer Dec 2007

Registered Dietitian Dress And The Effect Of Dietitian Dress On Perceived Professionalism, Connie Lynn Packer

Theses and Dissertations

People use others' dress to make assumptions, including how they believe the wearer will behave. Observers then adjust their behavior in response to the anticipated behavior of the wearer. Physician or nurse dress affects the degree to which patients perceive the medical professional as confident, experienced, competent, mature, trustworthy, and professional. Dietitian dress has not been studied. Our purpose was to identify 1) the current level of formality of dress of registered dietitians (RD), 2) characteristics of dress codes, 3) the effect of RD dress on patient/client perceptions of professional traits, and 4) the level of formality at which ...


The Stability Of Carotenogenic Food Colorants And Strategies To Prolong The Shelf Life In Process Cheese Spread, Ann Marie Doneski Craig Dec 2007

The Stability Of Carotenogenic Food Colorants And Strategies To Prolong The Shelf Life In Process Cheese Spread, Ann Marie Doneski Craig

Doctoral Dissertations

Food quality is often times measured by the way one perceives the food, particularly with respect to color and texture. Color quality often pre-determines expectation making it an important parameter to understand. The same can be said for textural properties of food. Maintaining color and texture are just two ways in which the shelf-life of food can be measured. One particular product that has experienced problems in this area is processed cheese spread in which the US military uses as part of the Meal, Ready-to-Eat (MRE) rations. The cheese spread is one of the most highly accepted products in the ...


Gene Expression Analysis Of Escherichia Coli O157:H7 At 10 And 37°C And Under Acidic Conditions Using High Density Oligonucleotide Microarrays, Kristina K. Carter Dec 2007

Gene Expression Analysis Of Escherichia Coli O157:H7 At 10 And 37°C And Under Acidic Conditions Using High Density Oligonucleotide Microarrays, Kristina K. Carter

Doctoral Dissertations

This purpose of this investigation was to use DNA microarrays to study gene expression in E. coli O157:H7 under refrigerated and acidic conditions. Total RNA from E. coli O157:H7 grown to 7 log CFU/mL under control (37 °C, pH 7), refrigerated (10°C, pH 7), acid adapted (37°C, pH 5.5, then lowered to 3.5), and acid shocked (37°C, pH 7, then lowered to 3.5) conditions was extracted using an optimized Qiagen RNeasy procedure. Total RNA was converted to cDNA, labeled, and hybridized onto an Affymetrix GeneChip® E. coli Genome 2.0 Array ...


Research To Action: A Campus-Community Partnership To Address Health Issues Of The Food Insecure, Kimberly A. Greder, Steven Garasky, Susan Klein Dec 2007

Research To Action: A Campus-Community Partnership To Address Health Issues Of The Food Insecure, Kimberly A. Greder, Steven Garasky, Susan Klein

Human Development and Family Studies Publications

A university-community partnership assessed the food security and health status of food pantry participants in a midwestern urban community. Eighty percent of households surveyed were food insecure, and 40% experienced fair or poor health. The sample experienced higher rates of chronic disease than the general population. A nutrition education program designed to meet specific nutrition and health-related needs of pantry participants was developed. Implications include training pantry staff about chronic disease and its relationship to nutrition, identifying pantry foods that provide positive health benefits, and developing consumer publications focused on selecting and preparing pantry foods when one has chronic disease.


Sonochemical And Hydrophobic Modification Of Chitin And Chitosan, Tao Wu Dec 2007

Sonochemical And Hydrophobic Modification Of Chitin And Chitosan, Tao Wu

Doctoral Dissertations

Chitin and chitosan are linear polysaccharides consisting of acetyl-glucosamine and glucosamine units with many potential applications in biomedicine, agriculture and food industry. In the food industry, chitosan can be used as antimicrobial agent and to create active packaging to improve food quality and extend shelf life. Commercial applications of chitosan are closely associated with its functional properties and biological activity, which are primarily governed by two structural properties: degree of acetylation (DA) and molecular weight (MW). The overall goal of this study was to develop methods for tailored modification of DA, MW and functionalities of chitosan.

The research was conducted ...


Serum 25-Hydroxyvitamin D Response To Daily Oral Supplementation With 800 Iu Cholecalciferol In Premenopausal Women Living In Maine, Monica Nelson Dec 2007

Serum 25-Hydroxyvitamin D Response To Daily Oral Supplementation With 800 Iu Cholecalciferol In Premenopausal Women Living In Maine, Monica Nelson

Electronic Theses and Dissertations

The purpose of this research was to measure the serum 25-hydroxyvitamin D [25(OH)D] response to daily supplementation with 800 IU vitamin D3 during winter in premenopausal women living in Maine, and to examine the effects of body composition and hormonal contraceptive use on baseline serum 25(OH)D levels and the response to supplementation. One hundred twelve women (22.2±3.7 years old) received placebo from March 2005 until September 2005 when they were randomized to receive either placebo or 800 IU vitamin D3 through February 2006. Eighty-six women completed the study. Body composition was measured by ...


Isoflavone Glycitein Diminished Plasma Cholesterol In Female Golden Syrian Hamsters, Sun-Ok Lee, Mathieu Renouf, Zhong Ye, Patricia A. Murphy, Suzanne Hendrich Nov 2007

Isoflavone Glycitein Diminished Plasma Cholesterol In Female Golden Syrian Hamsters, Sun-Ok Lee, Mathieu Renouf, Zhong Ye, Patricia A. Murphy, Suzanne Hendrich

Food Science and Human Nutrition Publications

The soybean isoflavones, daidzein, genistein, and glycitein, were hypothesized to act as cholesterol- lowering components, separate from soy protein. Pure synthetic daidzein, genistein, or glycitein (0.9 mmol/kg diet) or a casein-based control diet was fed to groups of 10 female Golden Syrian hamsters for 4 weeks. Hamsters fed glycitein had significantly lower plasma total (by 15%) and non-HDL (by 24%) cholesterol compared with those fed casein (P < 0.05). Daidzein and genistein’s effects on these lipids did not differ from the effects of either casein or glycitein. Plasma HDL cholesterol and triglyceride concentrations were not significantly affected by dietary treatments. The percentage of urinary recovery of the ingested dose of each isoflavone was glycitein > daidzein > genistein (33.2%, 4.6%, 2.2%, respectively), with the apparent absorption of glycitein significantly greater than that of the other isoflavones. These data suggest that glycitein’s greater cholesterol-lowering ...


Corroborative Study On Maize Quality, Dry-Milling And Wet-Milling Properties Of Selected Maize Hybrids, Kyung-Min Lee, Timothy J. Herrman, Lloyd Rooney, David S. Jackson, Jane Lingenfelser, Kent D. Rausch, John Mckinney, Chris Iiams, Linda Byrum, Charles R. Hurburgh Jr., Lawrence A. Johnson, Steven R. Fox Nov 2007

Corroborative Study On Maize Quality, Dry-Milling And Wet-Milling Properties Of Selected Maize Hybrids, Kyung-Min Lee, Timothy J. Herrman, Lloyd Rooney, David S. Jackson, Jane Lingenfelser, Kent D. Rausch, John Mckinney, Chris Iiams, Linda Byrum, Charles R. Hurburgh Jr., Lawrence A. Johnson, Steven R. Fox

Agricultural and Biosystems Engineering Publications

A corroborative study was conducted on the maize quality properties of test weight, pycnometer density, tangential abrasive dehulling device (TADD), time-to-grind on the Stenvert hardness tester (SHT), 100-kernel weight, kernel size distribution, and proximate composition as well as maize dry- and wet-millability by six participating laboratories. Suggested operating procedures were given to compare their measurements and provide the variance structure within and between laboratories and hybrids. Partial correlation coefficient among maize quality properties varied among laboratories. The repeatability and reproducibility precision values were acceptably low for the physical quality tests, except for TADD and SHT time-to-grind measurements. The yields of ...


1,3,7-Trideacetylkhivorin, Huaping Zhang, Don Vanderveer, Xi Wang, Feng Chen, Michael J. Wargovich Nov 2007

1,3,7-Trideacetylkhivorin, Huaping Zhang, Don Vanderveer, Xi Wang, Feng Chen, Michael J. Wargovich

Publications

The title D-seco limonoid, named 1,3,7-trideacetylkhivorin (systematic name: 14,15:21,23-diepoxy-1,3,7-trihydroxy-4,4,8-trimethyl-D-homo-24-nor-17-oxochola-20,22-diene-16-one), C26H36O7, was isolated from the stem bark of African mahogany Khaya senegalensis (Meliaceae). The four fused six-membered rings adopt chair, chair, boat and half-chair conformations. The five-membered furan ring is disordered by a 180° rotation about the bond linking it to the pyran ring. The crystal structure is stabilized by strong classical O-HO hydrogen-bond interactions to form a network.


Polyphenolic Profile And Antioxidant Activities Of Oolong Tea Infusion Under Various Steeping Conditions, Xinguo Su, Jun Duan, Yueming Jiang, Xuewu Duan, Feng Chen Nov 2007

Polyphenolic Profile And Antioxidant Activities Of Oolong Tea Infusion Under Various Steeping Conditions, Xinguo Su, Jun Duan, Yueming Jiang, Xuewu Duan, Feng Chen

Publications

The phenolic profile and antioxidant activities of oolong tea extract were investigated after tea was steeped in 90 or 100 oC water for 3 or 10 min. The extraction yield increased with increasing temperature and extended steeping time. However, higher temperature and longer time (100 oC water for 10 min) led to loss of phenolics. The aqueous extract of oolong tea (AEOT) at 100 oC for 3 min exhibited the strongest antioxidant activity. The major polyphenolic components of the AEOT were identified as (-)-epigallocatechin (EGC), (-)-epigallocatechin gallate (EGCG) and (-)-epicatechin-3-gallate (ECG). The two major catechins (EGC and EGCG) in the ...


Selection For Nutritional Function And Agronomic Performance In Oat, A A. Chernyshova, Pamela J. White, Marvin P. Scott, Jean-Luc Jannink Nov 2007

Selection For Nutritional Function And Agronomic Performance In Oat, A A. Chernyshova, Pamela J. White, Marvin P. Scott, Jean-Luc Jannink

Food Science and Human Nutrition Publications

The soluble fiber (1→3),(1→4)-β-D-glucan has been identified as an active component of oat (Avena sativa L.) that lowers serum cholesterol, reduces the risk of heart disease and colon cancer, and alleviates the symptoms of diabetes. Those beneficial effects may be caused by the ability of β-glucan to generate viscosity in the digestive system. The objective of this study was to estimate the genetic components of variance for β-glucan content and oat slurry viscosity in a population derived from the cross of high β-glucan with elite agronomic oat lines. Twelve high β-glucan inbred lines were crossed with ...


The Potential Role Of Probiotics In Reducing Poverty-Associated Infections In Developing Countries, Kingsley C. Anukam Oct 2007

The Potential Role Of Probiotics In Reducing Poverty-Associated Infections In Developing Countries, Kingsley C. Anukam

Kingsley C Anukam

Probiotics are defined by the Food and Agricultural Organization/ World Health Organization as “live microorganisms which when administered in adequate amounts confer a health benefit on the host” [1]. The potential benefits of their use have not been adequately investigated, especially in the developing world. Japan introduced Yakult, a probiotic fermented food drink in 1935, and in the Northern hemisphere, research and use of probiotics has gained an unprecedented momentum in the last decade [2]. Use of probiotics is not uncommon in Europe [3], but in many developing countries use of probiotics in its present definition is a foreign concept ...


Genistein Affects Her2 Protein Concentration, Activation And Promoter Regulation Via Estrogen Receptor-And Non-Estrogen Receptor-Mediated Mechanisms, Mary S. Sakla, Pete J. Ansell, Nader S. Shenouda, Dennis B. Lubahn, Ruth S. Macdonald Oct 2007

Genistein Affects Her2 Protein Concentration, Activation And Promoter Regulation Via Estrogen Receptor-And Non-Estrogen Receptor-Mediated Mechanisms, Mary S. Sakla, Pete J. Ansell, Nader S. Shenouda, Dennis B. Lubahn, Ruth S. Macdonald

Food Science and Human Nutrition Publications

The HER2 proto-oncogene, a member of the epidermal growth factor receptor family, is overexpressed in 20–30% of breast cancers. Genistein, the main soy isoflavone, interacts with estrogen receptors (ER) and it is also a potent tyrosine kinase inhibitor. Previously, our laboratory found that genistein delayed mammary tumor onset in transgenic mice that overexpress HER2 gene. Our goal was to define the mechanism through which genistein affects mammary tumorigenesis inHER2 overexpressing mice. We hypothesized that genistein inhibits HER2 activation and expression through ER-dependent and ER-independent mechanisms. Genistein inhibited total HER2 protein expression and tyrosine phosphorylation in BT-474, an ERα ...


Food Science & Technology Alumni News, Fall 2007 Oct 2007

Food Science & Technology Alumni News, Fall 2007

Food Science & Technology Department Records--Public Access

CONTENTS:
A message from the Department Head . . .
Graduates of the B.S. Program
Graduates of the M.S. Program
New M.S. Graduate Students
New Ph.D. Graduate Students
Graduate Follow-up
Food Science Club
Sophomore Food Science Major Wins Candy Scholarship
New Faces
Departures
Visiting Faculty
Let us Know how you’re doing!
Hyperspectral Imaging to Predict Beef Tenderness
Food Technology for Companion Animals: Research Grants
2007: The 90th Anniversary of the Dairy Store
Products Available at the Dairy Store
IICA Visits UNL
Fortenberry Holds Educational Conference on Local Foods
Laboratory Services
Meet the Faculty
Conferences and Workshops


A Wheat Genomic Dna Fragment Reduces Pollen Transmission Of Maize Transgenes By Reducing Pollen Viability, M. Paul Scott, Joan M. Peterson, Daniel L. Moran, Varaporn Sangtong, Latrice Smith Oct 2007

A Wheat Genomic Dna Fragment Reduces Pollen Transmission Of Maize Transgenes By Reducing Pollen Viability, M. Paul Scott, Joan M. Peterson, Daniel L. Moran, Varaporn Sangtong, Latrice Smith

Agronomy Publications

A genomic DNA fragment from wheat carrying the Glu-1Dx5 gene has been shown to exhibit reduced pollen transmission in transgenic maize. To localize the region of the DNA fragment responsible for this reduced pollen transmission, we produced transgenic maize plants in which the wheat genomic DNA proximal to the 1Dx5 coding sequence was replaced with the maize 27 kDa γ-zein promoter. Like the wheat promoter-driven Glu-1Dx5 transgene, this zein promoter-driven transgene functioned to produce 1Dx5 in maize endosperm. However, with the zein promoter-driven transgene, pollen transmission of the transgene loci was normal in most self- and cross-pollinations. We concluded that ...


Byu Adds "Zing" To New Carbonated Yogurt Product In Stores Nationwide, Byu News Sep 2007

Byu Adds "Zing" To New Carbonated Yogurt Product In Stores Nationwide, Byu News

Faculty Publications

A BYU professor invented the "zing" in General Mills' new carbonated yogurt product, now available in stores all over the country. Fizzix(TM), an extension of Yoplait's Go-GURT brand that comes in a tube, adds a tangy tingle to the traditional fruity flavor of yogurt that will "fizzify" the tongues of the 8- to 12-year-olds the company is targeting.


Add Some Spice To Your Life—Herb And Spice Lists, Sarah L. Francis Sep 2007

Add Some Spice To Your Life—Herb And Spice Lists, Sarah L. Francis

Sarah L. Francis

Herb and spice combinations for meats and for vegetables are suggested in this publication, which also contains proper herb-drying and spice use tips.


It's All In The Hands—Estimating Serving Sizes, Sarah L. Francis Sep 2007

It's All In The Hands—Estimating Serving Sizes, Sarah L. Francis

Sarah L. Francis

Our hands are the easiest way to estimate serving sizes when we the proper tools are not available. This publication shows how to use hands to estimate serving sizes.


Nutrition Quackery—Wading Through The Science, Sarah L. Francis Sep 2007

Nutrition Quackery—Wading Through The Science, Sarah L. Francis

Sarah L. Francis

Nutrition quackery is misleading information about nutrition and health. This publication contains 10 red flags of junk science and questions to ask when looking at health information, products, and advertisements.


Consumer Perceptions Of The Safety, Health And Environmental Impact Of Various Scales And Geographic Origin Of Food Supply Chains, Richard S. Pirog, Andrew Larson Sep 2007

Consumer Perceptions Of The Safety, Health And Environmental Impact Of Various Scales And Geographic Origin Of Food Supply Chains, Richard S. Pirog, Andrew Larson

Leopold Center Publications and Papers

This was a nationwide survey of 500 consumers and their attitudes toward food safety, local foods, health benefits and willingness to pay for foods raised with environmental attributes.


Lead-Contaminated Candies In Southern Nevada, Shawn Gerstenberger, Glenn Savage, Clayton Sellers, Keith Zupnik, Emmanuel C. Gorospe Sep 2007

Lead-Contaminated Candies In Southern Nevada, Shawn Gerstenberger, Glenn Savage, Clayton Sellers, Keith Zupnik, Emmanuel C. Gorospe

Environmental & Occupational Health Faculty Publications

Lead-contaminated candies from Latin America are beginning to gain attention in the public media1,2 and in the medical literature.3–5 These candies come from a number of sources and are manufactured outside Food and Drug Administration regulatory control. In 2005, we sampled 50 imported Latin American candies sold in Southern Nevada. A total of 20 (40%) tested positive with an average lead content of 1.46  0.27 mg/kg in the candies’ wrappers and straws, based on standard Graphite Furnace Atomic Absorption Spectrophotometry methodology. Given these results, the Southern Nevada Health District issued a cease-and-desist order on ...


Socioeconomic And Racial/Ethnic Differentials Of C-Reactive Protein Levels: A Systematic Review Of Population-Based Studies, Aydin Nazmi, Cesar G. Victora Aug 2007

Socioeconomic And Racial/Ethnic Differentials Of C-Reactive Protein Levels: A Systematic Review Of Population-Based Studies, Aydin Nazmi, Cesar G. Victora

Food Science and Nutrition

Background:Socioeconomic and racial/ethnic factors strongly influence cardiovascular disease outcomes and risk factors. C-reactive protein (CRP), a non-specific marker of inflammation, is associated with cardiovascular risk, and knowledge about its distribution in the population may help direct preventive efforts. A systematic review was undertaken to critically assess CRP levels according to socioeconomic and racial/ethnic factors.

Methods:Medline was searched through December 2006 for population-based studies examining CRP levels among adults with respect to indicators of socioeconomic position (SEP) and/or race/ethnicity. Bibliographies from located studies were scanned and 26 experts in the field were contacted for unpublished ...


Antimicrobial Powders And Bio-Based Films, Byungjin Min Aug 2007

Antimicrobial Powders And Bio-Based Films, Byungjin Min

All Dissertations

Food safety can be improved by various antimicrobial applications through the effective inhibition of microorganisms for certain periods by controlled release. Antimicrobials in powders and films were studied to investigate their activities and properties. Nisin (Nisaplin®) (200, 400, 600, 800, and 1000 IU/ml) was adsorbed to silica and different corn starches and their antimicrobial activities against Listeria monocytogenes were evaluated by agar diffusion assay. Nisin-adsorbed silica (Celpure P-65) powder had the highest antimicrobial activity at 600 IU/ml and also confirmed that the highest amount of nisin was adsorbed onto silica at the same concentration. Efficacy of both unmodified ...


Almond Skins As A Natural Antioxidant, Heather Johnson Aug 2007

Almond Skins As A Natural Antioxidant, Heather Johnson

All Theses

In this thesis, the potential for almond skins in their native state as a natural antioxidant in foods was explored. A literature review of general information on almonds, research done on almond skins, and general information on antioxidants is presented. The almond skins used in this study required an additional heat treatment step to improve their microbiological quality before further treatments and analysis could be performed. A descriptive analysis sensory panel was utilized to identify potential flavor and aroma descriptors and their intensities. The aroma descriptors identified were toasted, bran, and toasted; nutty. The flavor descriptors identified were toasted, bran ...


Application Of Solid Phase Micro-Extraction With Gas Chromatography-Mass Spectrometry For The Determination Of Geosmin And 2-Methylisoborneol In Processed Navy Beans (Phaseolus Vulgaris), Coesha Ancoinette Fairley Aug 2007

Application Of Solid Phase Micro-Extraction With Gas Chromatography-Mass Spectrometry For The Determination Of Geosmin And 2-Methylisoborneol In Processed Navy Beans (Phaseolus Vulgaris), Coesha Ancoinette Fairley

Doctoral Dissertations

This investigation was conducted to address the issue of musty bean products. The main objectives of this study were to: (1) identify the source of the musty, off-flavor in processed navy beans, (2) determine and identify the associated off-flavor compounds (geosmin and 2-methylisoborneol (2-MIB)), and (3) isolate the microorganism(s) responsible for production of the compounds.

To confirm the presence of geosmin and 2-MIB in processed baked beans, an automated gas chromatographic method employing solid phase micro-extraction (SPME-GC-MS) was used. Artificially musty baked beans, known musty beans, and raw ingredients (bacon, navy beans, and water) were analyzed. Results of this ...