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5,556 full-text articles. Page 147 of 147.

Strategies To Stabilize Locally Grown Produce For Year-Round Sales: A Feasibility Study, Sam Beattie, Lester Wilson, Aubrey Mendonca, Stéphanie Jung 2010 Iowa State University

Strategies To Stabilize Locally Grown Produce For Year-Round Sales: A Feasibility Study, Sam Beattie, Lester Wilson, Aubrey Mendonca, Stéphanie Jung

Leopold Center Completed Grant Reports

Local markets are dependent on fresh-grown products that are available only on a seasonal basis. This project looked at possible ways to preserve fruits and vegetables for profitable sales in the offseason.


New Strategies To Enhance Sustainability Of Apple Orchards, Mark Gleason, Donald R. Lewis, Matthew Z. Liebman, Paul A. Domoto, Gaile R. Nonnecke, Michael Duffy, Lester Wilson, Cheryl A. Reitmeier 2010 Iowa State University

New Strategies To Enhance Sustainability Of Apple Orchards, Mark Gleason, Donald R. Lewis, Matthew Z. Liebman, Paul A. Domoto, Gaile R. Nonnecke, Michael Duffy, Lester Wilson, Cheryl A. Reitmeier

Leopold Center Completed Grant Reports

Three years of experiments were conducted to help increase profit margins for apple growers, cope with new regulations on pesticide use, and deal with increased pesticide resistance by major apple pests and diseases.


Carnosine Content And Antioxidant Activity From Poultry Co-Products, Protein Meal And Stressed Poultry Tissues, Paljinder Manhiani 2010 Clemson University

Carnosine Content And Antioxidant Activity From Poultry Co-Products, Protein Meal And Stressed Poultry Tissues, Paljinder Manhiani

All Dissertations

Four separate studies were conducted to examine carnosine levels and associated antioxidant activity in poultry co-products, in rendered poultry protein meal, in tissues from stressed or non-stressed chickens. In the first study, carnosine was extracted from poultry co-products (head, liver, lungs, tail, gizzard, brain and heart). Liver contained the highest (102.29 mg/gm) level, while brain contained the lowest level of carnosine (0.95 mg/gm). Except brain, all tissue ultrafiltrates (20.87-39.57%) and reconstituted dry powders (5.66- 14.47%) showed thiobarbituric reactive acid species (TBARS) inhibition. Head ultrafiltrate and reconstituted dry powder showed maximum while gizzard ...


Co-Localization Of Amanitin And A Candidate Toxin-Processing Prolyl Oligopeptidase In Amanita Basidiocarps, Hong Lou, Heather E. Hallen-Adams, John S. Scott-Craig, Jonathan D. Walton 2010 University of Nebraska, Lincoln

Co-Localization Of Amanitin And A Candidate Toxin-Processing Prolyl Oligopeptidase In Amanita Basidiocarps, Hong Lou, Heather E. Hallen-Adams, John S. Scott-Craig, Jonathan D. Walton

Faculty Publications in Food Science and Technology

Fungi in the basidiomycetous ge nus Amanita owe their high mammalian toxicity to the bicyclic octapeptide amatoxins such as ∝-amanitin. Amatoxins and the related phallotoxins (such as the heptapeptide phalloidin) are encoded by members of the “MSDIN” gene family and synthesized on ribosomes as short (34 - 35 amino acid) proproteins. Anti-amanitin antibodies and confocal microscopy were used to determine the cellular and subcellular localization of amanitin accumulation in basidiocarps (mushrooms) of the Eastern North American destroying angel (Amanita bisporigera). Consistent with previous studies, amanitin is present throughout the basidiocarp (stipe, pileus, lamellae, trama, and universal veil), but it is present ...


Convergent Evolution Of Sequestrate Forms In Amanita Under Mediterranean Climate Conditions, Alfredo Justo, Ingo Morgenstern, Heather E. Hallen-Adams, David S. Hibbett 2010 Clark University

Convergent Evolution Of Sequestrate Forms In Amanita Under Mediterranean Climate Conditions, Alfredo Justo, Ingo Morgenstern, Heather E. Hallen-Adams, David S. Hibbett

Faculty Publications in Food Science and Technology

The systematic position of secotioid (Torrendia) and gasteroid (Amarrendia) forms within the agaricoid Amanita lineage (Agaricales, Basidiomycota) was studied with molecular (nLSU, ITS) data. Secotioid and gasteroid forms occur in four independent clades nested within agaricoid forms. One clade corresponds to the secotioid T. pulchella from southern Europe and northern Africa. The others correspond to Torrendia and Amarrendia species from Australia. Mediterranean climatic conditions are postulated as a force driving the convergent evolution of these secotioid and at least one of the gasteroid forms in geographically distant areas. Species formerly placed in Torrendia and Amarrendia are transferred to Amanita. A ...


Individuality In Gut Microbiota Composition Is A Complex Polygenic Trait Shaped By Multiple Environmental And Host Genetic Factors, Andrew K. Benson, Scott A. Kelly, Ryan Legge, Fangrui Ma, Soo Jen Low, Jaehyoung Kim, Min Zhang, Phaik Lyn Oh, Derrick Nehrenberg, Kunjie Hua, Stephen D. Kachman, Etsuko N. Moriyama, Jens Walter, Daniel A. Peterson, Daniel Pomp 2010 University of Nebraska-Lincoln

Individuality In Gut Microbiota Composition Is A Complex Polygenic Trait Shaped By Multiple Environmental And Host Genetic Factors, Andrew K. Benson, Scott A. Kelly, Ryan Legge, Fangrui Ma, Soo Jen Low, Jaehyoung Kim, Min Zhang, Phaik Lyn Oh, Derrick Nehrenberg, Kunjie Hua, Stephen D. Kachman, Etsuko N. Moriyama, Jens Walter, Daniel A. Peterson, Daniel Pomp

Faculty Publications in Food Science and Technology

In vertebrates, including humans, individuals harbor gut microbial communities whose species composition and relative proportions of dominant microbial groups are tremendously varied. Although external and stochastic factors clearly contribute to the individuality of the microbiota, the fundamental principles dictating how environmental factors and host genetic factors combine to shape this complex ecosystem are largely unknown and require systematic study. Here we examined factors that affect microbiota composition in a large (n = 645) mouse advanced intercross line originating from a cross between C57BL/6J and an ICR-derived outbred line (HR). Quantitative pyrosequencing of the microbiota defined a core measurable microbiota (CMM ...


Efficacy Of Ozone And Ultrasound For Microbial Reduction In Fruit Juice, Sonal Patil 2010 Technological University Dublin

Efficacy Of Ozone And Ultrasound For Microbial Reduction In Fruit Juice, Sonal Patil

Doctoral

Concerns have arisen regarding the microbiological safety of fruit juices due to a number of outbreaks associated with pathogens. Non-thermal technologies for the inactivation of microorganisms are of increasing interest to the food industry for the control of spoilage as well as safety concerns. The objective of this thesis was to investigate the efficacy of ultrasound and ozone treatments for control of microbial issues associated with fruit juices. Inactivation of Escherichia coli (ATCC 25922, NCTC 12900) using power ultrasound was found to be influenced by strain, prior acid adaptation and suspension liquid, but the effect was negated at the higher ...


Is It A Jungle Out There? Meat Packing, Immigrants, And Rural Communities, Georgeanne Artz, Rebecca Jackson, Peter Orazem 2010 University of Missouri

Is It A Jungle Out There? Meat Packing, Immigrants, And Rural Communities, Georgeanne Artz, Rebecca Jackson, Peter Orazem

Economics Publications

The shift of the U.S. meat packing industry from urban to rural areas has generated controversy regarding potential social and economic costs of meat packing plants on their host communities. This study uses media comments to identify the most prominent controversies regarding meat packing, its largely immigrant workforce, and rural communities. We find that the industry has impacted the demographic composition of rural communities and their schools, but find no evidence that the industry increases per capita government expenditures. Our results suggest rural communities trade off the economic benefits of hosting these large employers against the costs of accommodating ...


Validation Of Live Animal Ultrasonic Measurements Of Body Composition In Market Lambs, J. C. Emenheiser, S. P. Greiner, Ronald M. Lewis, D. R. Notter 2010 Virginia Polytechnic Institute and State University

Validation Of Live Animal Ultrasonic Measurements Of Body Composition In Market Lambs, J. C. Emenheiser, S. P. Greiner, Ronald M. Lewis, D. R. Notter

Faculty Papers and Publications in Animal Science

Market lambs from the state fair of Virginia (n = 172) were ultrasonically evaluated by 4 scan technicians and 3 image interpreters to determine accuracy of ultrasonic estimates of loin muscle area (ULMA), backfat thickness (UBF), and body wall thickness (UBW). Lambs were initially scanned at the preferred magnification setting of each technician; 2 chose 1.5× and 2 chose 2.0×. Lambs were then scanned a second time for ULMA and UBF with machine magnification settings changed from 1.5 to 2.0×, or vice versa, midway through the second scan. Lambs were then slaughtered, and analogous measurements [carcass loin ...


A Rapid Direct Solvent Extraction Method For The Extraction Of 2-Dodecylcyclobutanone From Irradiated Ground Beef Patties Using Acetonitrile., Amit Kumar 2009 Kansas State University

A Rapid Direct Solvent Extraction Method For The Extraction Of 2-Dodecylcyclobutanone From Irradiated Ground Beef Patties Using Acetonitrile., Amit Kumar

Amit Kumar, DVM, MS, PhD

The amount of irradiated beef in the U.S. market is growing, and a reliable, rapid method is needed to detect irradiated beef and quantify the irradiation dose. The official analytical method (BS EN 1785 2003) that has been adopted by the European Union is time consuming. The objective of this study was to develop a rapid method for the analysis of 2-dodecylcyclobutanone (2-DCB) in irradiated beef. A 5 g sample of commercially irradiated ground beef patty (90/10) was extracted with n-hexane using a Soxhlet apparatus or with acetonitrile via direct solvent extraction. The Soxhlet hexane extract was evaporated ...


Screen-Related Sedentary Behaviors: Children's And Parents' Attitudes, Motivations, And Practices, Meizi He, Leonard Piche, Charlene Beynon, Stewart Harris 2009 The University of Western Ontario - Brescia University College

Screen-Related Sedentary Behaviors: Children's And Parents' Attitudes, Motivations, And Practices, Meizi He, Leonard Piche, Charlene Beynon, Stewart Harris

Leonard Piché

OBJECTIVE: To investigate school-aged children's and parents' attitudes, social influences, and intentions toward excessive screen-related sedentary behavior (S-RSB).

DESIGN: A cross-sectional study using a survey methodology.

SETTING: Elementary schools in London, Ontario, Canada.

PARTICIPANTS: All grades 5 and 6 students, their parents, and their teachers in the participating schools were invited to voluntarily participate; 508 student-parent pairs completed the surveys.

MAIN OUTCOME MEASURE: Children's screen-related behaviors.

ANALYSIS: Data were analyzed using the Independent Student t test to compare differences of continuous variables and the chi-square test to test for differences of categorical variables.

RESULTS: Children spent 3.3 ...


Restaurants In London, On, Lenoard Piche, Elena Usdenski 2009 University of Western Ontario

Restaurants In London, On, Lenoard Piche, Elena Usdenski

Leonard Piché

Brescia professor, Dr. Len Piché, and Foods and Nutrition Masters student, Elena Usdenski, provide information about the features of London's restaurants and the nutritional analysis of their signature dishes.


Obesity And Food Choices Among Faculty And Staff At A Large Urban University, Marjorie R. Freedman, Rebecca J. Rubinstein 2009 San Jose State University

Obesity And Food Choices Among Faculty And Staff At A Large Urban University, Marjorie R. Freedman, Rebecca J. Rubinstein

Marjorie R. Freedman

Objective: In order to address increasing health care costs associated with obesity, this study sought to determine prevalence of overweight and obesity and examine eating behaviors, food choices, health beliefs, and attitudes of university employees. Participants and Methods: An online survey was distributed to > 3,800 faculty and staff at a large public metropolitan university in Winter 2008. Results: Almost half (48%) of 806 respondents were classified as overweight or obese. Compared to those with normal weights, overweight and obese respondents consumed fewer fruits and vegetables (p < .05), were less confident in making healthful food choices (p < .001), and were ...


Food Technology, Innovation And Teacher Education Summary Of Survey Findings, Angela Turner 2009 Southern Cross University

Food Technology, Innovation And Teacher Education Summary Of Survey Findings, Angela Turner

Dr Angela Turner

This executive summary presents an overview of the findings from data collected during 2009 as part of a doctoral thesis entitled: A Critique of Food Technology, Innovation and Teacher Education. The survey instrument collected information that sought to establish contemporary perceptions about the study of Food Technology in Australia and the role secondary education may play in ‘supplying’ people into professional studies towards a career as a food technologist. In this arrangement, the industry and profession of food technologists represent the ‘demand’ side of the process that starts with receiving students ‘supplied’ by the schools sector into undergraduate food science ...


Effect Of Soybean Fortification On Fermentation Characteristics And Consumer Acceptability Of Hausa Koko, A Ghanaian Fermented Porridge, James Owusu-Kwarteng 2009 University for Development Studies

Effect Of Soybean Fortification On Fermentation Characteristics And Consumer Acceptability Of Hausa Koko, A Ghanaian Fermented Porridge, James Owusu-Kwarteng

James Owusu-Kwarteng

ABSTRACT

Objective: To assess the effect of soybean fortification on microbial growth and consumer acceptability of

Hausa koko.

Methodology and results: Hausa koko was prepared from a mixture of soaked millet grains and pre-soaked,

blanched and dehulled soybeans added at 0 to 50 % replacement levels. pH, titritable acidity and microbial

counts were determined before and after the fermentation period using standard methods. The effect of the

added soybean on acceptability was evaluated on a nine point hedonic scale by an untrained panel that is

familiar with Hausa koko. Data were subjected to Analysis of Variance and Tukey testing for the ...


Viscoelastic Properties And Pasting Characteristics Of Fermented Maize: Influence Of The Addition Of Malted Cereals, Dr. Emmanuel Ohene Afoakwa (PhD), Randy Adjonu, Justice Asomaning 2009 University of Alberta

Viscoelastic Properties And Pasting Characteristics Of Fermented Maize: Influence Of The Addition Of Malted Cereals, Dr. Emmanuel Ohene Afoakwa (Phd), Randy Adjonu, Justice Asomaning

Professor Emmanuel Ohene Afoakwa

Investigations were conducted on the viscoelastic properties and pasting characteristics of fermented maize with malted cereals and their suitability for infant feeding. A 3x3x2 factorial experimental design with malting time, cereal malt concentration and cereal type was used. Maize, millet, and sorghum malts were added to fermented maize to reducing its bulk density. Samples were analysed for their viscoelastic properties and pasting characteristics using Brabender Viscoamylograph. Sorghum malt in comparison to millet and maize malts was not effective in terms of lowering the hot and cold paste viscosities of the fermented maize. Maize and millet malts liquefied the dough considerably ...


Acidification And Starch Behaviour During Co-Fermentation Of Cassava And Soybean Into Gari., Dr. Emmanuel Ohene Afoakwa (PhD), Edem John Kongor, George Annor, Randy Adjonu 2009 University of Ghana

Acidification And Starch Behaviour During Co-Fermentation Of Cassava And Soybean Into Gari., Dr. Emmanuel Ohene Afoakwa (Phd), Edem John Kongor, George Annor, Randy Adjonu

Professor Emmanuel Ohene Afoakwa

Changes in acidification and starch behaviour were investigated during co-fermentation of cassava and soybean into gari, an African fermented product. Non-volatile acidity, pH and starch content were evaluated using standard analytical methods. Starch breakdown and pasting characteristics were also analysed using Brabender Viscoamylograph. Fermentation caused significant variations in the pH, non-volatile acidity and starch concentration. The pH decreased with concomitant increases in non-volatile acidity during co-fermentation of the cassava dough. Soy-fortification upto 20% caused only minimal effects on the pH, titratable acidity and starch content during the fermentation period. Starch content decreased from 69.8%-60.4% within the 48 ...


Response Surface Methodology For Studying The Quality Characteristics Of Cowpea (Vigna Unguiculata)-Based Tempeh., George Amponsah Annor, Esther Sakyi-Dawson, Samuel Sefa-Dedeh, Firibu Kwesi Saalia, Dr. Emmanuel Ohene Afoakwa (PhD), Kwaku Tano-Debrah, Agnes Simpson Budu 2009 University of Guelph

Response Surface Methodology For Studying The Quality Characteristics Of Cowpea (Vigna Unguiculata)-Based Tempeh., George Amponsah Annor, Esther Sakyi-Dawson, Samuel Sefa-Dedeh, Firibu Kwesi Saalia, Dr. Emmanuel Ohene Afoakwa (Phd), Kwaku Tano-Debrah, Agnes Simpson Budu

Professor Emmanuel Ohene Afoakwa

Response surface methodology was used to optimize the processing conditions in the preparation of cowpea tempeh. The independent factors studied were boiling time (varying from 5 to 30 min), incubation time (varying from 12 to 48 h) and incubation temperatures (varying from 25 to 50°C), whereas the dependent factors were protein content, protein solubility, pH, titratable acidity and total color difference (using L, a* and b*). Regression models were generated and adequacy was tested with regression coefficients (R2) and the lack-of-fit tests. Optimum processing conditions were determined by method of superimposition. There was a strong and significant influence (P < 0.01) of the quadratic effect of the incubation time on the protein content of the cowpea tempeh, with similar significance (P < 0.01) noted in protein solubility with increasing boiling time. The optimum processing conditions observed for the preparation of cowpea tempeh were boiling time of about 20 min, incubation time of about 28 h and incubation temperature of about 37°C.


Nutrient Analysis Of Varying Socioeconomic Status Home Food Environments In New Jersey State, Scott D. Schefske, Cara L. Cuite, Anne C. Bellows, Carol Byrd-Bredbenner, Teresa Vivar, Holly Rapport, William K. Hallman 2009 Syracuse University

Nutrient Analysis Of Varying Socioeconomic Status Home Food Environments In New Jersey State, Scott D. Schefske, Cara L. Cuite, Anne C. Bellows, Carol Byrd-Bredbenner, Teresa Vivar, Holly Rapport, William K. Hallman

Anne Bellows

Home food inventories of Oaxacan Mexican-American and African-American families of low-socioeconomic status living in an urban area in New Jersey with at least one child under the age of 12 were conducted using Universal Product Code scanning. The African-American and Oaxacan household food supplies were compared with a sample of White households, also with at least one child under the age of 12, not of low-socioeconomic status. Nutrient Adequacy Ratios for total fat, saturated fat, cholesterol, sodium, total carbohydrate, sugar, dietary fiber, protein, vitamin A, vitamin C, calcium, and iron were used to quantify the adequacy of household food supplies ...


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