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Food Science

2012

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Articles 1 - 30 of 113

Full-Text Articles in Life Sciences

Differential Surface Deposition Of Complement Proteins On Logarithmic And Stationary Phase Leishmania Chagasi Promastigotes, Amanda Ramer-Tait, Soi Meng Lei, Bryan H. Bellaire, Jeffrey K. Beetham Dec 2012

Differential Surface Deposition Of Complement Proteins On Logarithmic And Stationary Phase Leishmania Chagasi Promastigotes, Amanda Ramer-Tait, Soi Meng Lei, Bryan H. Bellaire, Jeffrey K. Beetham

Faculty Publications in Food Science and Technology

Previous works demonstrated that various species of Leishmania promastigotes exhibit differential sensitivity to complement-mediated lysis (CML) during development. Upon exposure to normal human serum (NHS), cultures of Leishmania chagasi promastigotes recently isolated from infected hamsters (fewer than 5 in vitro passages) are CML-sensitive when in the logarithmic growth phase but become CML-resistant upon transition to the stationary culture phase. Visualization by light and electron microscopy revealed dramatic morphological differences between promastigotes from the 2 culture phases following exposure to NHS. Flow cytometric analysis demonstrated that surface deposition of the complement components C3, C5, and C9 correlated inversely with promastigote CML-resistance ...


Characterization Of Starch By Vibrational Spectroscopy, Brandon H. Holder Dec 2012

Characterization Of Starch By Vibrational Spectroscopy, Brandon H. Holder

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

To develop a dispersive Raman spectroscopic method for measuring amylose-amylopectin ratios of corn starch mixtures, 67 mixtures were prepared by randomly mixing waxy and normal corn starches. Amylose contents were measured using a dual wavelength iodine binding colorimetric method. Raman data were collected from 250 to 3200 cm-1 using optimized instrument parameters. Partial least-squares (PLS) and principal components regression (PCR) were used to prepare multivariate calibration models; however, PLS commonly outperformed PCR. Truncating the spectra to 250 to 2000 cm-1 improved the results (r2 of validation = 0.831, SEP = 2.90%). Removal of a cold water swelling ...


Genome-Wide Association Study For Oat (Avena Sativa L.) Beta-Glucan Concentration Using Germplasm Of Worldwide Origin, Mark A. Newell, Franco G. Asoro, M. Paul Scott, Pamela J. White, William D. Beavis, Jean-Luc Jannink Dec 2012

Genome-Wide Association Study For Oat (Avena Sativa L.) Beta-Glucan Concentration Using Germplasm Of Worldwide Origin, Mark A. Newell, Franco G. Asoro, M. Paul Scott, Pamela J. White, William D. Beavis, Jean-Luc Jannink

Food Science and Human Nutrition Publications

Detection of quantitative trait loci (QTL) controlling complex traits followed by selection has become a common approach for selection in crop plants. The QTL are most often identified by linkage mapping using experimental F2, backcross, advanced inbred, or doubled haploid families. An alternative approach for QTL detection are genome-wide association studies (GWAS) that use pre-existing lines such as those found in breeding programs. We explored the implementation of GWAS in oat (Avena sativa L.) to identify QTL affecting β-glucan concentration, a soluble dietary fiber with several human health benefits when consumed as a whole grain. A total of 431 lines ...


New Technologies For Whole Wheat Processing: Addressing Milling And Storage Issues, Andres F. Doblado-Maldonado Nov 2012

New Technologies For Whole Wheat Processing: Addressing Milling And Storage Issues, Andres F. Doblado-Maldonado

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

Whole wheat flour production and demand has increased dramatically during the last decade due to evidence supporting the benefits of whole grains in the diet. Hence, the food industry has provided a wide variety of new whole grain products. There are unique challenges that accompany whole wheat flour production, especially related to milling and storage. The present thesis provides new strategies on the adaptation of new technologies to overcome whole wheat processing issues. These issues are first discussed in a literature review and then followed by three research studies. In the first study, retail whole wheat flours were evaluated for ...


Evidence Of Transmission Of Escherichia Coli O157:H7 To The Tissues Or Phyllo-Plane Of Wheat, From Contaminated Soil, Seeds Or Water, Bismarck Antonio Martinez Nov 2012

Evidence Of Transmission Of Escherichia Coli O157:H7 To The Tissues Or Phyllo-Plane Of Wheat, From Contaminated Soil, Seeds Or Water, Bismarck Antonio Martinez

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

Escherichia coli O157:H7 is a human pathogen that can cause a wide spectrum of disease symptoms, such as bloody diarrhea, hemorrhagic colitis, and hemolytic uremic syndrome (HUS). Escherichia coli O157:H7 illness are mainly associated with undercooked beef; however, in recent years outbreaks have been linked to fresh produce such as spinach, lettuce, and sprouts. In 2009, flour was implicated as a contamination source in the consumption of raw cookie dough resulting in 77 illness-cases. The objective of this research was to determine the possible route of transmission of E. coli O157:H7 into the phyllo-plane of wheat using ...


Sp746-B Good Agricultural Practices (Gap) Certification In Tennessee, Faith Critzer, Annette Wszelaki Nov 2012

Sp746-B Good Agricultural Practices (Gap) Certification In Tennessee, Faith Critzer, Annette Wszelaki

Food, Nutrition and Food Safety

No abstract provided.


Sp737 Efnep Partner Brochure, Janie Burney Nov 2012

Sp737 Efnep Partner Brochure, Janie Burney

Food, Nutrition and Food Safety

Expanded Food and Nutrition Education Program information for program partners


Quality And Nutritional Status Of Fresh-Cut Tomato As Affected By Spraying Of Delactosed Whey Permeate Compared To Industrial Washing Treatment., Lubna Ahmed, Ana Belen Martin-Diana, Daniel Rico, Catherine Barry-Ryan Nov 2012

Quality And Nutritional Status Of Fresh-Cut Tomato As Affected By Spraying Of Delactosed Whey Permeate Compared To Industrial Washing Treatment., Lubna Ahmed, Ana Belen Martin-Diana, Daniel Rico, Catherine Barry-Ryan

Articles

The aim of this study was to examine the applicability of delactosed whey permeate 28 (DWP) treatment on preserving the quality and antioxidant attributes of fresh-cut 29 tomato. Tomatoes were treated with 3 % DWP by dipping, spraying and a 30 combination of both, stored at 4 °C for 10 days and compared with the industrial 31 standard, chlorine. The combination of dipping and spraying of DWP showed the best 32 results for all the markers tested. The combined treatment of dipping and spraying of 33 DWP significantly lowered total counts (~ 1.0 log cfu/g), yeast and moulds (~ 1.2 ...


The Lobster Bulletin Fall 2012, Lobster Institute Oct 2012

The Lobster Bulletin Fall 2012, Lobster Institute

Lobster Bulletin

Group Seeks to Protect Ocean by Promoting Better Lawn Care Practices.

Lobster Institute 25th Anniversary Celebration Continues

Maine conforms First-Ever Case of West Nile Virus

Research Report: Direct determination of age in lobsters, and the Lobster cam back online soon


Genetic Characterization Of North American Populations Of The Wheat Curl Mite And Dry Bulb Mite, Gary L. Hein, Roy French, Benjawan Siriwetwiwat, James W. Amrine Oct 2012

Genetic Characterization Of North American Populations Of The Wheat Curl Mite And Dry Bulb Mite, Gary L. Hein, Roy French, Benjawan Siriwetwiwat, James W. Amrine

Faculty Publications: Department of Entomology

The wheat curl mite, Aceria tosichella Keifer, transmits at least three harmful viruses, wheat streak mosaic virus (WSMV), high plains virus (HPV), and Triticum mosaic virus (TriMV) to wheat (Triticum aestivum L.) throughout the Great Plains. This virus complex is considered to be the most serious disease of winter wheat in the western Great Plains. One component of managing this disease has been developing mite resistance in wheat; however, identification of mite biotypes has complicated deployment and stability of resistance. This biotypic variability in mites and differential virus transmission by different mite populations underscores the need to better understand mite ...


Consumer-Centered Extension Education Website Increases Usage, Sarah L. Francis, Peggy Martin, Kristin Taylor Oct 2012

Consumer-Centered Extension Education Website Increases Usage, Sarah L. Francis, Peggy Martin, Kristin Taylor

Food Science and Human Nutrition Publications

Concern about young families' ability to cope with rising food prices resulted in creating Spend Smart. Eat Smart (SSES), a website focused on budgetfriendly nutrition information for limited resource audiences (LRA). SSES was redesigned using LRAs needs and preferences to increase use by LRAs. SSES usage increased after it was revised to incorporate interactivity and more consumerfriendly design elements.


Hyperspectral Imaging For Non-Contact Analysis Of Forensic Traces, Patrick Cullen, G. Edelman, T. Van Leeuwen, M. Aalders, E. Gaston Oct 2012

Hyperspectral Imaging For Non-Contact Analysis Of Forensic Traces, Patrick Cullen, G. Edelman, T. Van Leeuwen, M. Aalders, E. Gaston

Articles

Hyperspectral imaging (HSI) integrates conventional imaging and spectroscopy, to obtain both spatial and spectral information from a specimen. This technique enables investigators to analyze the chemical composition of traces and simultaneously visualize their spatial distribution. HSI offers significant potential for the detection, visualization, identification and age estimation of forensic traces. The rapid, non-destructive and non-contact features of HSI mark its suitability as an analytical tool for forensic science. This paper provides an overview of the principles, instrumentation and analytical techniques involved in hyperspectral imaging. We describe recent advances in HSI technology motivating forensic science applications, e.g. the development of ...


Genetically Modified Organisms As A Potential Solution For Decreasing Hunger In Developing Nations: An Ethical Paradox, Rachel Sherman Oct 2012

Genetically Modified Organisms As A Potential Solution For Decreasing Hunger In Developing Nations: An Ethical Paradox, Rachel Sherman

Independent Study Project (ISP) Collection

I first became aware of and interested in genetically modified organisms (GMOs) in the “Politics of Food in America” course I took spring semester of 2012, my junior year at the University of Texas at Austin. I was intrigued by the fact that such a concept was so unfamiliar to the public, yet genetically engineered products were in our everyday foods. Though I received a basic introduction to GMOs through my course, I was curious to learn more about the regulatory practices of GM crops and the political relationships sustained by GM firms and government agencies in the United States ...


The Effect Of Delactosed Whey Permeate On Phytochemical Content Of Canned Tomatoes., Lubna Ahmed, Ankit Patras, Ana Belen Martin-Diana, Daniel Rico, Catherine Barry-Ryan Oct 2012

The Effect Of Delactosed Whey Permeate On Phytochemical Content Of Canned Tomatoes., Lubna Ahmed, Ankit Patras, Ana Belen Martin-Diana, Daniel Rico, Catherine Barry-Ryan

Articles

The effect of delactosed whey permeate (DWP) treatment on antioxidant and phyto-chemical 26 components of canned Irish plum tomatoes were investigated. Tomatoes were sterilized for 5 27 min (F0) at 120 °C and stored for 6 months. The DWP treatment retained significantly 28 (p


Farmers Markets And The Local Food System: The Case Of Gettysburg, Pennsylvania, Paul A. Di Salvo, Claire Quinn, Robin Arnold, Caroline Clark, Suzanne Englot, Andrew Mello, Julia P. Mitchell, Emily Ruhl, Rebecca Taormina, Cashin Conover, Valerie Leone, Michael Mattaini, William Patton, Elizabeth Rouillard, Nicholas Smith-Herman, Jordan Swenson, Kelly Webster, Brian Wooldredge, Randall K. Wilson Oct 2012

Farmers Markets And The Local Food System: The Case Of Gettysburg, Pennsylvania, Paul A. Di Salvo, Claire Quinn, Robin Arnold, Caroline Clark, Suzanne Englot, Andrew Mello, Julia P. Mitchell, Emily Ruhl, Rebecca Taormina, Cashin Conover, Valerie Leone, Michael Mattaini, William Patton, Elizabeth Rouillard, Nicholas Smith-Herman, Jordan Swenson, Kelly Webster, Brian Wooldredge, Randall K. Wilson

Student Publications

In order to examine and obtain a better understanding of the local food system within Adams County, Pennsylvania, this study explores the characteristics and perspectives of the customers and vendors at the farmers markets in Gettysburg, Pennsylvania. Survey findings from the Gettysburg Farmers Market and the three Adams County Farmers Markets include customer demographic information, perspectives and shopping behavior as well as vendor product information, farm size and location and preference for market management. Introductory background information on the Farm Bill and the influence of agricultural practices on the environment, human health and nutrition and the relationship between farmers markets ...


Food Fortification Improves The Intake Of All Fortified Nutrients, But Fails To Meet The Estimated Dietary Requirements For Vitamins A And B6, In Lactating South African Women, Peggy C. Papathakis, Kerry E. Pearson Oct 2012

Food Fortification Improves The Intake Of All Fortified Nutrients, But Fails To Meet The Estimated Dietary Requirements For Vitamins A And B6, In Lactating South African Women, Peggy C. Papathakis, Kerry E. Pearson

Food Science and Nutrition

Objective To investigate the impact of fortification by comparing food records and selected biochemical indicators of nutritional status pre- and post-fortification.

Design Mean intake from 24 h recalls (n 142) was compared with the Estimated Average Requirement (EAR) to determine the proportion with inadequate intake. In a subsample (n 34), diet and serum retinol, folate, ferritin and Zn were compared pre- and post-fortification for fortified nutrients vitamin A, thiamin, riboflavin, niacin, folic acid, Fe and Zn.

Setting South Africa.

Subjects Breast-feeding women (ninety-four HIV-infected, forty eight HIV-uninfected) measured at ∼6, 14, 24 weeks, and 9 and 12 months postpartum.

Results ...


Oil Extraction From Microalgae, Tong Wang Sep 2012

Oil Extraction From Microalgae, Tong Wang

Iowa State University Patents

A method of oil extraction and biomass recovery from microalgae is disclosed. Methods according to the invention extract lipids from a biomass source and concentrate protein in the solid biomass source by alcohol processing. Aqueous alcohol processing methods provide extraction and separation techniques for lipids and protein-rich biomass suitable for biofuels.


Response Surface Methodology Guided Release Of Two Acetate Volatiles From An Oil-In-Water Emulsion, Roisin Burke, Mark Traynor, Catherine Barry-Ryan Aug 2012

Response Surface Methodology Guided Release Of Two Acetate Volatiles From An Oil-In-Water Emulsion, Roisin Burke, Mark Traynor, Catherine Barry-Ryan

Articles

Optimization of the volatile release of two commonly used flavor compounds (isoamyl acetate and furfuryl acetate) from a food emulsion model system was evaluated using response surface methodology (RSM). Twenty-seven random order settings were established using a central composite face-centered (CCF) experimental design. The main and combined effects of four independent variables—concentration of isoamyl acetate (50–90 ppm), furfuryl acetate (20–30 ppm), salt (NaCl; 0.1–2%), and pH (5–7)—on the responses were examined. The main objective of the present study was to determine the optimal concentration level of the four variables leading to optimal release ...


Measurement Of Single Soybean Seed Attributes By Near-Infrared Technologies. A Comparative Study, Lidia Esteve Agelet, Paul R. Armstrong, Ignacio Romagosa Clariana, Charles R. Hurburgh Jr. Aug 2012

Measurement Of Single Soybean Seed Attributes By Near-Infrared Technologies. A Comparative Study, Lidia Esteve Agelet, Paul R. Armstrong, Ignacio Romagosa Clariana, Charles R. Hurburgh Jr.

Agricultural and Biosystems Engineering Publications

Four near-infrared spectrophotometers, and their associated spectral collection methods, were tested and compared for measuring three soybean single-seed attributes: weight (g), protein (%), and oil (%). Using partial least-squares (PLS) and four preprocessing methods, the attribute that was significantly most easily predicted was seed weight (RPD > 3 on average) and protein the least. The performance of all instruments differed from each other. Performances for oil and protein predictions were correlated with the instrument sampling system, with the best predictions using spectra taken from more than one seed angle. This was facilitated by the seed spinning or tumbling during spectral collection as opposed ...


Analysis Of Microbial Diversity By Amplicon Pyrosequencing, Ryan Legge Aug 2012

Analysis Of Microbial Diversity By Amplicon Pyrosequencing, Ryan Legge

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

Microorganisms numerically dominate terrestrial biodiversity, and play important biochemical and geochemical roles in the environments they inhabit. To understand structure and function of complex ecosystems, it is essential to identify primary drivers of microbial diversity and community structure. Historically, the study of microbial ecology was reductive, limited to microbes able to be cultured and enumerated. Microbes meeting this criterion were thought to comprise the dominating members of the environments they were isolated from, however, estimates suggesting up to 99% of the endogenous species are uncultivable with existing methodologies; a concept that reflects experimental failure, rather than a verifiable conclusion. Therefore ...


Solid-State Fermentation Of Soybean And Corn Processing Coproducts For Potential Feed Improvement, Junyi Lio, Tong Wang Aug 2012

Solid-State Fermentation Of Soybean And Corn Processing Coproducts For Potential Feed Improvement, Junyi Lio, Tong Wang

Food Science and Human Nutrition Publications

Two agro-industrial coproducts, soybean cotyledon fiber and distiller’s dried grains with solubles (DDGS), were used as substrates to evaluate the effect of coculturing three different fungi, Aspergillus oryzae, Trichoderma reesei, and Phanerochaete chrysosporium, on enzyme production by solid-state fermentation (SSF). When soybean fiber was used as the substrate, a maximum xylanase activity of 757.4 IU/g and a cellulase activity of 3.2 IU/g were achieved with the inoculation and incubation of T. reesei and P. chrysosporium for 36 h, followed by A. oryzae for an additional 108 h. This inoculation scheme also resulted in the highest ...


Seasonal Population Dynamics Of The Potato Psyllid (Hemiptera: Triozidae) And Its Associated Pathogen “Candidatus Liberibacter Solanacearum” In Potatoes In The Southern Great Plains Of North America, John A. Goolsby, John J. Adamczyk Jr., J. M. Crosslin, Noel N. Troxclair, J. R. Ancisco, Gerhard G. Bester, J. D. Bradshaw, Edsel D. Bynum Jr., L. A. Carpio, Don C. Henne, Ankush Joshi, Joseph E. Munyaneza, Pat Porter, Phillip E. Sloderbeck, J. R. Supak, C. M. Rush, F. J. Willett, B. J. Zechmann, B. A. Zens Aug 2012

Seasonal Population Dynamics Of The Potato Psyllid (Hemiptera: Triozidae) And Its Associated Pathogen “Candidatus Liberibacter Solanacearum” In Potatoes In The Southern Great Plains Of North America, John A. Goolsby, John J. Adamczyk Jr., J. M. Crosslin, Noel N. Troxclair, J. R. Ancisco, Gerhard G. Bester, J. D. Bradshaw, Edsel D. Bynum Jr., L. A. Carpio, Don C. Henne, Ankush Joshi, Joseph E. Munyaneza, Pat Porter, Phillip E. Sloderbeck, J. R. Supak, C. M. Rush, F. J. Willett, B. J. Zechmann, B. A. Zens

Faculty Publications: Department of Entomology

The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), and its associated pathogen “Candidatus Liberibacter solanacearum” (Ca. L. solanacearum), the putative causal agent of zebra chip (ZC) disease in potatoes (Solanum tuberosum L.), were sampled in commercial potato fields and untreated control plots for 3 yr in multiple locations in Texas, Kansas, Nebraska, and Colorado. Populations of the potato psyllid varied across years and across potato growing regions. However, the percentage of potato psyllids infected with Ca. L. solanacearum although variable across years, was consistently highest in the Lower Rio Grande Valley of Texas (LRGV), the reported overwintering location for this ...


Host-Microbe-Diet Interplay: Dietary Modulation Of The Gut Microbiota In Relation To Health, Inés Martínez Aug 2012

Host-Microbe-Diet Interplay: Dietary Modulation Of The Gut Microbiota In Relation To Health, Inés Martínez

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

Vertebrates are associated with trillions of bacteria, with the densest populations residing in the large intestine. The symbiosis between vertebrates and their gut microbiota has resulted in important implications of the gut microbiome on host health. Diet is an important factor that shapes gut microbiota composition, and because of the interplay between host-microbiome-diet, dietary strategies that modulate gut microbiome structure are deemed a relevant tool to improve host health. However, gaps in knowledge exist with respect to these interactions, and it is essential to obtain a mechanistic understanding of how these relations take place to develop successful therapeutic strategies that ...


Evaluation Of A Social Marketing Campaign: 4 Day Throw Away, Katie J. James Aug 2012

Evaluation Of A Social Marketing Campaign: 4 Day Throw Away, Katie J. James

Nutrition & Health Sciences Dissertations & Theses

Children are at a heightened risk for foodborne illness. Handling leftover food safely was identified as a concern from focus groups with the main food preparer in families with young children in two Midwestern states. To design, implement, and evaluate a theory-based food safety education intervention to raise awareness of the USDA guideline for handling leftover food. The food safety social marketing campaign “4 Day Throw Away” launched in towns throughout Nebraska and Iowa. The campaign included both traditional and social media methods to relay the message of discarding leftovers after four days. A total of 600 guardians of young ...


Gene Expression In Intestinal Mucosal Biopsy Specimens Obtained From Dogs With Chronic Enteropathy, Vicki L. Wilke, Dan Nettleton, Meghan J. Wymore, Jack M. Gallup, Cumhur Yusuf Demirkale, Mark R. Ackermann, Chris K. Tuggle, Amanda E. Ramer-Tait, Michael J. Wannemeuhler, Albert E. Jergens Aug 2012

Gene Expression In Intestinal Mucosal Biopsy Specimens Obtained From Dogs With Chronic Enteropathy, Vicki L. Wilke, Dan Nettleton, Meghan J. Wymore, Jack M. Gallup, Cumhur Yusuf Demirkale, Mark R. Ackermann, Chris K. Tuggle, Amanda E. Ramer-Tait, Michael J. Wannemeuhler, Albert E. Jergens

Faculty Publications in Food Science and Technology

Objective—To characterize mucosal gene expression in dogs with chronic enteropathy (CE). Animals—18 dogs with CE and 6 healthy control dogs.

Procedures—Small intestinal mucosal biopsy specimens were endoscopically obtained from dogs. Disease severity in dogs with CE was determined via inflammatory bowel index scores and histologic grading of biopsy specimens. Total RNA was extracted from biopsy specimens and microchip array analysis (approx 43,000 probe sets) and quantitative reverse transcriptase PCR assays were performed.

Results—1,875 genes were differentially expressed between dogs with CE and healthy control dogs; 1,582 (85%) genes were downregulated in dogs with ...


The Trade And Welfare Impacts Of Australian Quarantine Policies: The Case Of Pigmeat, John C. Beghin, Mark Melatos Aug 2012

The Trade And Welfare Impacts Of Australian Quarantine Policies: The Case Of Pigmeat, John C. Beghin, Mark Melatos

Faculty Publications: Agricultural Economics

We analyze the trade and welfare impact of quarantine measures imposed by Australia on imports of pigmeat. In particular, we account for changes to Australia’s pigmeat quarantine policy over time, including those changes related to the recent resolution of a WTO dispute between Australia and the European Union. Using a random utility model and applying it to corner solutions in import decisions, tariff equivalents (by major trading partner) are estimated for the different pigmeat quarantine regimes implemented by Australia during the period 1988-2009. The welfare impact on consumers, producers, and foreign exporters is computed using a partial equilibrium model ...


Nature's Perfect Food, Geoffrey D. Reynolds Aug 2012

Nature's Perfect Food, Geoffrey D. Reynolds

Faculty Publications

Nature's Perfect Food is an article that describes the history of local beekeeper Jack Hartman and the benefit of local honey bees to agriculture and honey consumers.


Is Local Food In Your Future?: An Analysis Of The Viability Of The Local Food Movement, Jennifer A. Sliney Aug 2012

Is Local Food In Your Future?: An Analysis Of The Viability Of The Local Food Movement, Jennifer A. Sliney

Pell Scholars and Senior Theses

The Local Food Movement has arisen in recent decades as a proposed solution to problems in the current food distribution system. Proponents of the movement look to solve problems such as unsustainable farming practices, greenhouse gas emissions, and unhealthy communities. Skeptics raise questions as to whether local food is truly capable of accomplishing any of those. The author proposes that as a solution, aspects of the Local Food Movement such as urban agriculture and attempts at community development should be taken more seriously in order to create a better future for the land and people alike.


Modifying Vegetable Oil For Encaustic Painting, Linxing Yao, Barbara Walton, Tong Wang Aug 2012

Modifying Vegetable Oil For Encaustic Painting, Linxing Yao, Barbara Walton, Tong Wang

Food Science and Human Nutrition Publications

The work depicted in this article results from collaboration among lipid scientists and an artist. The collaboration started seven years ago when Barbara Walton, an art professor at Iowa State University (ISU) in Ames, USA, read a news story about soywax candles with clean-burning properties characterized by a lipid professor at ISU, Tong Wang.


Microbial Co-Occurrence Relationships In The Human Microbiome, Karoline Faust, J. Fah Sathirapongsasuti, Jacques Izard, Dirk Gevers, Jeroen Raes, Curtis Huttenhower Jul 2012

Microbial Co-Occurrence Relationships In The Human Microbiome, Karoline Faust, J. Fah Sathirapongsasuti, Jacques Izard, Dirk Gevers, Jeroen Raes, Curtis Huttenhower

Faculty Publications in Food Science and Technology

The healthy microbiota show remarkable variability within and among individuals. In addition to external exposures, ecological relationships (both oppositional and symbiotic) between microbial inhabitants are important contributors to this variation. It is thus of interest to assess what relationships might exist among microbes and determine their underlying reasons. The initial Human Microbiome Project (HMP) cohort, comprising 239 individuals and 18 different microbial habitats, provides an unprecedented resource to detect, catalog, and analyze such relationships. Here, we applied an ensemble method based on multiple similarity measures in combination with generalized boosted linear models (GBLMs) to taxonomic marker (16S rRNA gene) profiles ...