...ANALYSIS OF FOOD PRODUCTS FOOD SCIENCE 581 Instructor Prof. D. Julian McClements Room 238, Chenoweth Lab Tel: 545 1019 Email: mcclements@foodsci.umass.edu Course Description Food products are analyzed for a variety of reasons, e.g., compliance with legal and labeling requirements, assessment of product quality, determination of nutritive value, detection of adulteration, research and development. The lectures will cover the basic principles of analytical procedures and techniques commonly used to provide information about the chemical composition, structure and physical properties of food materials. The aim of the laboratory classes is to give students experience in performing food analysis experiments, analyzing data and reporting their findings. In addition, students are expected to work in teams on a special project where they will identify and critically assess the most appropriate analytical methods for analyzing the properties of a particular food product. [4 Credits]. Textbooks * Introduction to Food Analysis. S.S. Nielsen, 1998. Aspen Publishers - The best general overview of food analysis techniques currently available. (Required). * Food Analysis: Theory and Practice. Y. Pomeranz and C.E. Meloan, Chapman and Hall - General overview of food analysis techniques (Useful) * Food Analysis: Principles and Techniques. D.W. Gruenwedel and J.R. Whitaker, Marcel Dekker - General overview of food analysis techniques (Useful) * Analytical Chemistry of Foods...
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...Abstract Power transformers are one of the most important parts of the power system. Failure of a transformer affects power supply to citizen and affects the income of business sector. Condition monitoring of power transformer is very important. By measuring the furan contents in power transformer oil can give a sign of the power transformer health, using this method is more convenient and economical among all the methods. With the aid of UV-Vis Spectrometer, light absorption and transmission with various furan contents of different power transformers with different ages are measured and compared. The measured results are used to predict the furan contents and remnant life of the power transformer can estimate. Copper dusts added into transformer oil in order to investigate the effect on the light absorption and transmission. The measured results show the impact of copper dust on light absorption and transmission characteristics that can provide indication of transformers remaining health condition. This thesis presents the measurement of power transformers oil samples with different furan contents for remnant life estimation. Key words: Power Transformer, Copper Dust, Transformer oil, UV-Vis Spectrometer, Furan, Health Chapter 1 Introduction 1.1 Power Transformer Figure 1: A basic power transformer. Power Transformers are critical elements in an electrical power system. It is used to step-up or step-down voltage level as needed to serve the transmission...
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...average. During this process a coating, causing the wear of the refractories materials, is formed, inducing expensive maintenance periods. The aim of this work is to find the reaction that takes place between the Slag and the bricks, in order to find the parameters that have to be changed to improve the bricks lifetime in the kiln. The use of bricks with higher alumina content is one of the solutions, but it is expensive. The influence of Alkalis and especially Na2O has been studied before in inert atmosphere. In this work it will be studied in air as well as the influence of the alumina content of the brick. Experiments were performed in air atmosphere, using powder samples that have been compressed into pellets. The devices used to characterize the reaction and the product of the reaction were: Kanthal furnace, X-ray diffraction (XRD), dilatometer, differential scanning calorimetry and thermogravimetry (DSC/TG) in-situ mass spectrometer, Scanning electron microscope (SEM) and Energy dispersive spectrometry (EDS). The XRD experiments permitted to show the presence of a glassy phase after a heat treatment of the samples containing alkalis at 1350°C. Dilatometer experiments gave more information about the influence of alkalis; it catalyzed the sintering reaction. The DSC/TG/spectrometer permitted to...
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...1 Introduction The primary purpose of this essay is to comparatively analyze information disclosure of intellectual capital in the UK and China, using the content analysis method on company annual reports. In contemporary society, the importance of intellectual capital (IC) and the popularity of using IC to value a company’s competitiveness have been increasing. The definition offered by the Chartered Institute of Management Accountants (2001) is probably one of the most comprehensive definitions: “…the possession of knowledge and experience, professional knowledge and skill, good relationships and technological capacities, which when applied will give organizations competitive advantage.” Predicting a company’s future market performance is one of the key functions of IC information disclosure (Roslender and Fincham, 2004). Consequently, IC will have a significant role in the future value creation process. This study has some limitations, such as the small sample number, which has implications for how representative the data are. Ten companies in the respective stock markets were selected in the UK and China (total twenty) and content analysis was performed. A larger sample would have made the calculations too complex for the time available. The following paper reports the results of empirical research indicating that the trend of IC information disclosure is steadily increasing in both China and the UK...
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...for factor analysis (Guadagnoli & Velicer, 1988, Hoelter, 1983; Aday & Cornellius, 2006; Polit & Beck, 2008) other authors appear to not support their use (Gaskin & Happell, 2014). In 2014, Gaskin and Happell published a study to explore the way nursing researchers utilize factor analysis. The focus was on five areas of decisions that are commonly made when doing factor analysis: Sample size; choice between factor analysis and principal component analysis; numbers of factors to be retained; data extraction and method of factor rotation. In order to provide guidance and information to researchers, the authors reviewed the literature regarding the above areas of interest, assessed current and best practice for researchers and, provided recommendations...
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...Sample Honours Thesis Table of Contents Please note: this is only an example. Each School has its own specifications, some of which are stricter than others. Furthermore, each thesis is different and will have different emphases on particular sections. CHECK with your supervisor for advice on length of sections and of the thesis as a whole. Sample: from the School of BABS, UNSW table of contents ABSTRACT I TABLE OF CONTENTS II ACKNOWLEDGEMENTS V LIST OF TABLES VI LIST OF FIGURES VII LIST OF ABBREVIATIONS VIII 1 INTRODUCTION 1 1.1 HEPATITIS C VIRUS 1 1.1.1 DISCOVERY 1 1.1.2 EPIDEMIOLOGY 2 1.1.3 PATHOGENESIS 2 1.1.4 TREATMENT 3 1.2 MOLECULAR BIOLOGY 3 1.2.1 STRUCTURE OF GENOME 3 1.2.2 GENETIC VARIATION 6 1.2.3 GENOTYPIC DIFFERENCES 8 1.3 RNA DEPENDENT RNA POLYMERASE ACTIVITY 9 1.3.1 POLYMERASE FUNCTION 9 1.3.2 MODEL SYSTEMS OF HCV REPLICATION 11 1.3.3 GENOTYPE SPECIFIC STUDIES 11 1.3.4 BIOCHEMICAL PROPERTIES 12 1.4 KUNJIN VIRUS RNA DEPENDENT RNA POLYMERASE 13 1.5 CONCLUSION 15 1.6 AIMS AND HYPOTHESIS 16 2 MATERIALS AND METHODS 17 2.1 HCV POSITIVE SERA SAMPLES 17 2.2 RNA EXTRACTION 17 2.3 CDNA SYNTHESIS 17 2.4 HCV PRIMER DESIGN AND USAGE 18 2.5 NESTED POLYMERASE CHAIN REACTION (NPCR) 21 2.5.1 REACTION AND CYCLING CONDITIONS 21 2.5.2...
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...RENA FANDRICH UNIVERSITY OF CALIFORNIA, SANTA BARBARA FEBRUARY 2003 ACKNOWLEDGMENTS The authors wish to convey their sincere appreciation to a number of individuals who have played important roles in supporting and facilitating this research. At UCSB, Charles Mullin directed the videotaping effort that captured over 1,000 programs for analysis with diligence, dedication, and careful precision, as he has done consistently over the years in his work on this project. Emma Rollin generously assisted in this effort, assuming primary responsibility for several of the channels studied. The staff at UCSB’s Institute for Social, Behavioral, and Economic Research accomplished all of the financial aspects of the study helpfully and expertly. Tim Schmidt, Jan Jacobson, Jan Holtzclaw, Monica Koegler-Blaha, and Nicole DuBois all contributed to the success of this study with their “can do” approach to the many challenges posed by administrative bureaucracies. At the Kaiser Family Foundation, Vicky Rideout has been an invaluable partner since the outset of this ongoing project tracking sexual messages on television. Her vision of a benchmark analysis that could be repeated over time to track industry trends seemed incredibly ambitious when we first started our work. Now that this vision has been genuinely realized with our third report, it is impressive to see the accumulated knowledge that has resulted, and inspiring to observe its application in policy debates and social responsibility...
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...Stats Questions II 1.The table below displays a week's worth of data on daily sales at the Crank It Louder Music Store. ??Over that time period, what was the mean daily level of sales? A. ?$3,489.79 ?B. $4,071.42 ?C. $1,643.23 D. $2,829.92 2. The table below displays a week's worth of data on daily sales at the Crank It Louder Music Store. ??Over that time period, what was the median daily level of sales? A. $1,643.23 B. ?$3,489.79 C. ?$3,130.46 D. ?$800.12 3. The histogram below displays the age distribution of the world's billionaires as reported by Forbes Magazine in 2001. ??This distribution is best described as: ?A. Approximately normal. ?B. Strongly skewed to the right. ?C. Bimodal. D. Approximately uniform. 4) Which of the following correctly ranks from smallest to largest the measures of central tendency of the data displayed in the histogram below? ? A. Mode < mean < median.? B. ?Median < mode < mean.? C. Mode < median < mean.? D. ?The answer cannot be determined from the information provided. 5) The scatter diagram below displays the relationship between age and net worth (in US$ billions) for the world's 20 wealthiest people as reported by Forbes Magazine in 2001. ??If 45-year old Bill Gates, the world's wealthiest person, is considered an outlier and removed from the data set, what will be the effect on this relationship? A. The value of the correlation coefficient will decrease. B. ?The value of the correlation...
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...research > Content analysis - Home | The ... www.utexas.edu/.../iar/research/plan/method/content.phpCached Content analysis Overview . Content analysis is the systematic examination of written or recorded communication in order to break down, identify, and analyze the ... . Content Analysis - Research Papers - Chrisjohn1 www.termpaperwarehouse.com › Social Issues Apr 15, 2012 · Read this essay on Content Analysis . Come browse our large digital warehouse of free sample essays. Get the knowledge you need in order to pass your ... . Research Content Analysis, Sample Research Content Analysis www.sampleanalysis.net/research-content-analysis.htmlCached Research Content Analysis Standard. Research content analysis is a document which identifies the merits and drawbacks of a research project or paper. . Research Paper: Content Analysis of Nine Creative Concepts ... www.studymode.com/essays/Research-Paper-Content-Analysis...Cached 1 MAIN ISSUE This research is a quantitative, cross-sectional, exploratory and descriptive content analysis of selected advertisements from two different magazines ... . Basic Outline for a Content Analysis Paper - Term Paper - Yeykaye www.studymode.com/essays/...a-Content-Analysis-848341.htmlCached Basic Outline for a Content Analysis Paper The best way to understand how to organize and write a journal article is to look at the articles in one or two of the ... . Content Analysis | Sociology Essays...
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...Sample Honours Thesis Table of Contents Please note: this is only an example. Each School has its own specifications, some of which are stricter than others. Furthermore, each thesis is different and will have different emphases on particular sections. CHECK with your supervisor for advice on length of sections and of the thesis as a whole. Sample: from the School of BABS, UNSW table of contents ABSTRACT I TABLE OF CONTENTS II ACKNOWLEDGEMENTS V LIST OF TABLES VI LIST OF FIGURES VII LIST OF ABBREVIATIONS VIII 1 INTRODUCTION 1 1.1 HEPATITIS C VIRUS 1 1.1.1 DISCOVERY 1 1.1.2 EPIDEMIOLOGY 2 1.1.3 PATHOGENESIS 2 1.1.4 TREATMENT 3 1.2 MOLECULAR BIOLOGY 3 1.2.1 STRUCTURE OF GENOME 3 1.2.2 GENETIC VARIATION 6 1.2.3 GENOTYPIC DIFFERENCES 8 1.3 RNA DEPENDENT RNA POLYMERASE ACTIVITY 9 1.3.1 POLYMERASE FUNCTION 9 1.3.2 MODEL SYSTEMS OF HCV REPLICATION 11 1.3.3 GENOTYPE SPECIFIC STUDIES 11 1.3.4 BIOCHEMICAL PROPERTIES 12 1.4 KUNJIN VIRUS RNA DEPENDENT RNA POLYMERASE 13 1.5 CONCLUSION 15 1.6 AIMS AND HYPOTHESIS 16 2 MATERIALS AND METHODS 17 2.1 HCV POSITIVE SERA SAMPLES 17 2.2 RNA EXTRACTION 17 2.3 CDNA SYNTHESIS 17 2.4 HCV PRIMER DESIGN AND USAGE 18 2.5 NESTED POLYMERASE CHAIN REACTION (NPCR) 21 2.5.1 REACTION AND CYCLING CONDITIONS 21 2.5.2...
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...2005; received in revised form 25 October 2005; accepted 25 October 2005 Abstract The wheat is one of the cereals more consumed in the human food in all worlds. In the form of flour it is used for preparation of breads, cookies, pizzas, cakes, and etc. This way, the knowledge of the mineral content this cereal and its flour is very important. Considering it, methods for determination of metals in these matrices are opportune and several papers have been performed. In this paper, a slurry sampling flame atomic absorption spectrometric method for the determination of manganese in wheat flour is proposed. The optimization step was performed using univariate methodology involving the variables: nature and concentration of the acid solution for slurry preparation, sonication time and sample mass. The established experimental conditions after optimization recommend a sample mass of 0.5 g, 2.0 mol LÀ1nitric acid solution and a sonication time of 15 min. This method allows the determination of manganese in wheat flour using the standard calibration technique, with a detection limit of 0.13 lg gÀ1, and a precision, expressed as relative standard deviation (RSD) of 3.5% (n = 10) for a manganese content of about 7.6 lg gÀ1 and using a wheat flour mass of 0.5 g. The accuracy was confirmed by analyzing of three certified...
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...Take a representative Sample of soil received from the field and dry it in the oven. 2. Sieve it through 4.75mm IS sieve. 3. Sieve the sample retained on 4.75mm sieve through the set of course sieves by hand. While sieving should be agitated such that sample rolls in irregular motion over the sieves. 4. Determine the mass of the material retained on each sieve. 5. Similarly, sieve the dried material passing through 4.75mm sieve and retained on 75 micron sieve using set of fine sieve. 6. A minimum 10 minutes of shaking is required if a mechanical shaker is used. 7. Determined the mass of the material retained on each sieve. 8. Calculate the % of soil retained on each sieve on the basis of total mass of sample taken. 9. Determine the % passing through each sieve. 4.1.4 Observation Table: Soil Sample Taken: 1000gm Table 1 IS Sieve Particle Size (mm) Mass Retained in gm % mass Retained Cumulative Retained % Finer 4.75 mm 4.75 38 3.8 3.8 96.2 2.36 mm 2.36 14 1.4 5.2 94.8 1.18 mm 1.18 44 4.4 9.6 90.4 600 µ 0.6 100 10 19.6 80.4 300 µ 0.3 387 38.7 58.3 41.7 212 µ 0.212 230 23 81.3 18.7 150 µ 0.15 97 9.7 91 9 90 µ 0.9 68 6.8 97.8...
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...Safflower’s ability to forage for sub soil moisture with its vigorous tap root, improved oil content and it versatility to produce Linoleic and Oleic oils makes it an obvious alternative to current crops grown in the more marginal cropping areas around the world. India is one of the largest producers of safflower in the world, however; the productivity of safflower is very low. The main reasons for lower productivity are poor quality seeds, lower land holding, poor crop management, spiny nature of many cultivars, lack of proper irrigation and susceptibility to various biotic and abiotic stresses. Availability of hybrids alone has the potential to change the face of safflower cultivation in...
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...THE INFORMATION CONTENT OF EARNINGS AND SYSTEMATIC RISK IN CHANGING ECONOMIC CONJECTURE : THE TURKISH CASE A THESIS SUBMITTED TO THE GRADUATE SCHOOL OF SOCIAL SCIENCES OF MIDDLE EAST TECHNICAL UNIVERSITY BY FATMA AKSOY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF BUSINESS ADMINISTRATION OCTOBER 2008 Approval of the Graduate School of Social Sciences Prof. Dr.Sencer Ayata Director I certify that this thesis satisfies all the requirements as a thesis for the degree of Master of Business Administration. Prof. Dr.Cengiz Erol Head of Department This is to certify that we have read this thesis and that in our opinion it is fully adequate, in scope and quality, as a thesis for the degree of Master of Business Administration Prof. F. N. Can Şımga-Muğan Supervisor Examining Committee Members Assoc. Prof. Zeynep Önder Prof. F. N. Can Şımga-Muğan (BILKENT UNIVERSITY, BA) (METU, BA) Assist. Prof. Engin Küçükkaya (METU, BA) I hereby declare that all information in this document has been obtained and presented in accordance with academic rules and ethical conduct. I also declare that, as required by these rules and conduct, I have fully cited and referenced all material and results that are not original to this work. Name, Last name : Fatma, Aksoy Signature : iii ABSTRACT THE INFORMATION CONTENT OF EARNINGS AND SYSTEMATIC RISK IN CHANGING ECONOMIC CONJECTURE: THE TURKISH CASE Aksoy, Fatma M.B.A., Department of Business...
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...“ATOMIC ABSORPTION 1” VARIAN SPECTRA AA200 EXPERIMENTS ANALYSIS OF MULTIVITAMINE TABLETS. Experiment # 1 Analysis of multivitamin tablets for copper and iron Instructor: Gregg Taylor Student: Martin Tadros ID#: 100288670 Date Perform: October 9, 2013 Lab Partner: N/A Note: This lab I did last semester Note 2: The lab done this semester the dilution I did was the problem. Will send this one as a reference that I understand the concept and calculation of the lab and will send another lab explaining the errors. AA1 - Varian Spectra AA 200 Experiments INTRODUCTION Concept: Atomic absorption spectroscopy (AAS) is a spectra analytical procedure for the quantitative determination of chemical elements employing the absorption of optical radiation (light) by free atoms. It is capable of measuring the concentrations of a wide variety of element in sample. In AAS method measures the light absorbed by the very large proportion of atoms in the ground state. It is a widely used technique due to its simplicity, effectiveness, and relatively low cost. Atomic-absorption (AA) spectroscopy uses the absorption of light to measure the concentration of gas-phase atoms. Since samples are usually liquids or solids, the analyses atoms or ions must be vaporized in a flame or graphite furnace. The atoms absorb ultraviolet or visible light and make transitions to higher electronic energy levels. The analyse concentration is determined from the...
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