Food Science Commons^™

Maine Ag Trader, New England Environmental Finance Center, University Of Southern Maine

Local Food Systems

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Discovering Lactic Acid Bacteria By Genomics, Todd Klaenhammer, Eric Altermann, Fabrizio Arigoni, Alexander Bolotin, Fred Breidt, Jeffrey Broadbent, Raul Cano, Stephane Chaillou, Josef Deutscher, Mike Gasson, Maarten Van De Gutche, Jean Guzzo, Axel Hartke, Trevor Hawkins, Pascal Hols, Robert W. Hutkins, Michiel Kleerebezem, Jan Kok, Oscar Kuipers, Mark Lubbers, Emanuelle Maguin, Larry Mckay, David Mills, Arjen Nauta, Ross Overbeek, Herman Pel, David Pridmore, Milton Saier, Douwe Van Sinderen, Alexei Sorokin, James Steele, Daniel O'Sullivan, Willem De Vos, Bart Weimer, Monique Zagorec, Roland Seizen

Department of Food Science and Technology: Faculty Publications

This review summarizes a collection of lactic acid bacteria that are now undergoing genomic sequencing and analysis. Summaries are presented on twenty different species, with each overview discussing the organisms fundamental and practical significance, environmental habitat, and its role in fermentation, bioprocessing, or probiotics. For those projects where genome sequence data were available by March 2002, summaries include a listing of key statistics and interesting genomic features. These efforts will revolutionize our molecular view of Gram-positive bacteria, as up to 15 genomes from the low GC content lactic acid bacteria are expected to be available in the public domain by …

Factors Affecting The Determination Of Threshold Doses For Allergenic Foods: How Much Is Too Much?, Steve L. Taylor, Susan L. Hefle, Carsten Bindslev-Jensen, S. Allan Bock, A. Wesley Burks Jr., Lynn Christie, David J. Hill, Arne Host, Jonathan O'B. Hourihane, Gideon Lack, Dean D. Metcalfe, Denise Anne Moneret-Vautrin, Peter A. Vadas, Fabienne Rance, Daniel J. Skrypec, Thomas A. Trautman, Ingrid Malmheden Yman, Robert S. Zeiger

Department of Food Science and Technology: Faculty Publications

Background: Ingestion of small amounts of an offending food can elicit adverse reactions in individuals with IgE-mediated food allergies. The threshold dose for provocation of such reactions is often considered to be zero. However, because of various practical limitations in food production and processing, foods may occasionally contain trace residues of the offending food. Are these very low, residual quantities hazardous to allergic consumers? How much of the offending food is too much? Very little quantitative information exists to allow any risk assessments to be conducted by the food industry.

Objective: We sought to determine whether the quality and quantity …

Risk Assessment And Decision-Making For Genetically Modified Foods, Aynsley Kellow

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

The author examines concerns about genetically modified foods and how those concerns have developed into policy responses markedly different in Europe than in the United States.

Review Of: Eat Your Genes: How Genetically Modified Food Is Entering Our Diet (Stephen Nottingham Ed.), Natalie Duval

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

Review of the book: "Eat Your Genes: How Genetically Modified Food Is Entering Our Diet," by Stephen Nottingham, (St. Martin's Press 1999). Introduction, Glossary, Bibliography, Index. ISBN 1-85649-578-7 [212 pp. $17.95. Softbound, St. Martin's Press, Inc., New York, NY 10010].

Keeping Food Cool During Camping, Charlotte P. Brennand

All Archived Publications

No abstract provided.

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 …

The National School Lunch Program, Katherine M. Hadley

Undergraduate Honors Capstone Projects

In 1946, President Harry Truman signed the National School Lunch Act which recently celebrated its 50th anniversary (1). It was established by congress "to safeguard the health and well-being of the nation's children" (2). The National School Lunch Program (NSLP) is a federally assisted meal program that is functioning in more than 94,000 public and nonprofit private schools. Lunches through the NSLP are served to more than 25 million school children each day.

Home Drying Of Food, Charlotte P. Brennand

All Archived Publications

No abstract provided.

Comparison Of Predicted And Observed Dioxin Levels In Fish: Implications For Risk Assessment, Judy S. Lakind, Daniel Q. Naiman

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

After comparing sampled and modelled dioxin levels in the tissue of fish near pulp and paper mill discharges, the authors argue that, until an improved bioaccumulation model is incorporated into EPA's Risk assessment process, determination of human health Risks associated with consuming dioxin-contaminated fish should be based on sampling.

Luminescence Techniques To Identify The Treatment Of Foods By Ionizing Radiation, G. A. Schreiber, B. Ziegelmann, G. Quitzsch, N. Helle, K. W. Bogl

Food Structure

About a decade ago two luminescence techniques, thermoluminescence (TL) and chemiluminescence (CL), were first described as methods for the detection of irradiated spices. It has now been established that the CL method can be used to screen only certain foodstuffs for irradiation. The TL method, instead, has been developed for clear identification of foods irradiated with at least 1 kGy and contaminated by minerals. The method is therefore suitable for a wide range of foodstuffs and it has been applied by laboratories for routine control. The latest findings prove that even irradiation with very low doses used to inhibit the …

An Overview Of The Role Of Fat In Nutrition And Formulation And Its Measurement In The Live Animal, Meat Carcass And Processed Meat Products, Paul B. Newman

Food Structure

The role of fat in nutrition and health is complex but one about which consumers have only recently become aware. As a consequence of changing consumer attitudes and because fat affects many physical attributes in food, raw material suppliers and food manufacturers have attempted to improve the range and nutritional composition of available foodstuffs. However, with a substantial price difference between fat and lean, and ever-increasing demands for improved throughputs and operational cost performance, producer and manufacturing sectors require rapid, accurate methods of fat measurement suitable for commercial application. These are only just beginning to become available but should ultimately …

What Are The Risks In Foods And What Can You Do About Them, Charlotte P. Brennand

All Archived Publications

No abstract provided.

Reduced Sugar And Sugar-Free Food Preservation, Georgia C. Lauritzen

All Archived Publications

No abstract provided.

Recent Developments In The Application Of X-Ray Microanalysis To The Study Of Food Systems, B. E. Brooker

Food Structure

Low temperature scanning electron microscopy in conjunction with X-ray microanalysis can be used to study not only the internal structure of intact bulk food systems but also the distribution of their constitutive chemical elements. However, the considerable practical problems that are usually encountered when performing X-ray analysis on frozen samples include: a) the controlled deposition of a good quality carbon film to prevent charging, b) producing digital elemental distribution maps of elements whose X-ray spectral energy peaks partially or completely overlap and c) controlling the plane of fracture through the specimen and ensuring that the resulting topography allows meaningful analysis …

Food Preservation--Plan Ahead, Marilyn B. Noyes, Jean Alder

All Archived Publications

No abstract provided.

Determination Of Internal Color Of Beef Ribeye Steaks Using Digital Image Analysis, K. Unklesbay, N. Unklesbay, J. Keller

Food Structure

Objective measurements of beef ribeye steaks were made to determine the color distribution throughout their interior after heat processing. Steaks from eight animals were grilled to five degrees of doneness according to traditional internal temperature specifications. Images of the interior of these steaks, as seen by a digital image processing system through red, green, and blue filters were analyzed. The mean, standard deviation, skewness, and kurtosis of the histograms of light intensity at all points throughout the surface were determined. The steaks were also analyzed raw and it was determined that little variation in the color of muscle tissue occurred …

The Sensory Evaluation Of Food Products Made With Varying Levels Of Sucrose And Fructose And Of Threshold Measurements Of Individuals With Diabetes Mellitus, Sherrie Lynn Hardy

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The relative sweetness, flavor, texture and overall acceptance of sucrose and fructose was determined at various sugar levels in sugar cookies, white cake, vanilla pudding and lemonade. Because of the reported increased sweetness of fructose and its increased tolerance in individuals with diabetes mellitus, the study was designed to investigate the possibility of fructose as an alternative sweetener.

Taste panel members were used to evaluate the products. All products were served in duplicate and only data from those judges who had sampled both replications were used for the statistical analysis. Each product was prepared at 100%, 50% and 25% of …

Food And Nutritional Needs Of The World Population By 2000 A. D., Sitaram Shankar Kharbas

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Investigations were carried out to project the food needs of the world population by 2000 A. D., and to explore the possibilities of meeting these requirements.

About 70 percent of the world population presently living in developing countries do not get adequate diets, and suffer from many diseases of under-nutrition and malnutrition. They are unable to increase food production themselves. People in the developed nations have enough food and their food production is increasing at a rate faster than the rate of growth of population.

Cultivable land is the main source of food for man. The seas can also be …