Methods to Increase Consumer Confidence in Premium Olive Oils Using a Forston Labs NavSpec+

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Methods to Increase Consumer Confidence in Premium Olive Oils Using a Forston Labs NavSpec+"

Transcription

1 Methods to Increase Consumer Confidence in Premium Olive Oils Using a Forston Labs NavSpec+ Abstract: A rapidly growing consumer driven market for premium Olive Oils has led to low consumer confidence and financial losses due to counterfeit products. In response, the USDA recently released the first change in Olive Oil Standards in over 60 years. Compliance with these voluntary standards is time consuming, costly and generally requires analysis in a laboratory. Described are Spectrophotometric/Fluorometric methods to help assure the highest grade of product requiring no sample preparation, little training, and little cost. The analysis is done with highly portable equipment, and can be accomplished at or near each distribution point in the supply chain. In 2007, the U.S. Marshals Service seized 10,939 cases of Extra Virgin Olive Oil and Pomace Olive Oil, valued at approximately $628,000 in Long Island City, New York. The oil being sold as Extra Virgin Olive Oil and Pomace Olive Oil was actually soybean oil. Extra virgin is the top grade of olive oil according to standards established by the International Olive Council (IOC) and the United States Department of Agriculture (USDA). It demands a premium price, as much as ten times that of a lower grade. This price differential is the primary motivation for adulteration and/or counterfeit labeling at any point in which a sale of the oil occurs. A recent study i showed that greater than 65% of bottles labeled imported Extra Virgin Olive Oil are either a cheaper grade of olive oil or are adulterated with another type of oil. Given that the U.S. imported over 275,000 tons of these oils from the 2008/2009 crop year ii a seizure of this size is likely only a small portion of adulterated products reaching the consumer.

2 U.S. consumers growing awareness of perceived health benefits of olive oil consumption have contributed to both domestic production and import levels. Olive oil imports in 2009 were 163% of what they were in iii This growth rate is expected to accelerate. Sadly, higher premium prices to the consumer do not guarantee value as the previously mentioned UC Davis study identified many leading brands that produced samples not meeting this highest quality grade. In response to consumer awareness and producer demand, the USDA recently published revised standards for the grading of olive oil. These new standards which became effective October 25, 2010, replaced standards that had been in effect since In the 62 years between revisions technologies have changed. Advanced, low cost and easy to use instrumentation is now readily available all along the supply chain. The producer, the bulk handlers, the distributor and the retailer all can now do on-site testing of their products demonstrating to the consumer the premium value of their purchases. As U.S. Extra Virgin Olive Oil is the target of counterfeiters, it is useful to examine the standards for that product. While there is not presently a USDA sanctioned certification program available, according to the USDA: U.S. Extra Virgin Olive Oil is virgin olive oil which has excellent flavor and odor (median of defects equal to zero and median of fruitiness greater than zero) and a free fatty acid content, expressed as oleic acid, of not more than 0.8 grams per 100 grams, and meets the additional requirements as outlined in , as appropriate.

3 There are optional tests which can be performed but the required analysis on each lot includes but is not limited to the following: 1. Determination of the organoleptic characteristics; (Taste and Odor) 2. Determination of free fatty acid content (as oleic acid); 3. Determination of peroxide value; 4. Determination of absorbency in ultraviolet; 5. Determination of the fatty acid composition; 6. Trans fatty acid; 7. Desmethylsterol composition (% Total Sterol); and 8. Total sterol content 9. Stigmastadiene Taste and odor are objective evaluations usually done by trained testers with long experience. Other tests are done by skilled technicians and some stipulate the use of advanced methods such as Gas Chromatography. There are also other bellwethers of changes in quality, taste and odor. The greenish-yellow tint and distinctive fruity aroma of Extra Virgin Oil stems from the high level of chlorophyll and other volatiles extracted from the olive. As oil is processed to lower grades, the concentrations of these key constituents changes. Changes in chlorophyll content and loss of volatiles are good measures of product variation. Easy to use, low cost, portable spectrophotometer/fluorometers capable of wide spectrum analysis are now available providing tools for the relatively unskilled user. Product variations that the examiners senses may not be able to detect reliably, may be very evident when comparing the VIS/NIR spectrum and fluorescent attributes of two samples. The following example uses a Spectrophotomer/Fluorometer from Forston Labs with a handheld LabNavigator interface. The plug and play VIS-NIR NavSpec+ Spectrophotometer measures and displays between 350 and 980nm and has a built in Fluorometer with two selectable excitation wavelengths (405 and 500nm). The USDA absorbance measurements are made in the UV range and UV Spectrophotometers with these capabilities are also available from Forston Labs and others. Using the Fluorometer of the NavSpec+ as a secondary

4 method, the user can make a comparative measurement of chlorophyll content at their point in the distribution chain. At-point-of-transfer testing at increased intervals, verified as needed by formal analysis of questionable product, increases the detection risks of adulterated products. This increases the risk of detection to counterfeiters, increasing the security of the product purity. A sample of Olive Oil examined in the VIS-NIR range for Absorption creates peaks near 410nm and 665nm. As our example will show, the comparison of spectra of Extra Virgin Olive Oil and those of lesser grades are an indicator of purity. Natural variations in sources will occur and therefore VIS-NIR measurements of comparable samples may be somewhat misleading. A few minutes spent testing the same samples using the Fluorometer function of the instrument provides a higher level of confidence in the test results. A study in 2000 suggested that Fluorescence Spectra likely provides a simple, rapid test for adulteration of Extra Virgin Olive Oil. iv The unadulterated Extra Virgin Oil has a distinctive spectra and as the oils are further processed to lower grades, the change in the spectra can be dramatic. As the following example demonstrates a fast, simple method requiring virtually no sample preparation provides three points of reference for comparison in a graphical form. This method can be performed with handheld instrumentation by virtually any user using known grades as reference standards. Results that are comparable to those of the reference provide a significant level of confidence that the product is as it is purported to be. Results that are questionable raise a red flag indicating that confirmation from a full range testing lab will likely prove a lesser grade product is in hand.

5 Our example tests samples of: Extra Virgin Olive Oil from California Olive Ranch 100% Soy Bean Oil Extra Virgin Oil adulterated 50% by volume with Soy Bean Oil 100% Pure All Natural Olive Oil composed of refined olive oils and virgin olive oils from Berio A sample of each oil was first tested comparing the sample absorption vs wavelength between 380 and 950nm. Overlaying the data on a single chart as shown in Chart 1, it can be seen that the values vary considerably at 410 and 665nm. At these wavelengths the absorption values drop as does the content of Extra Virgin Oil. This follows the removal of chlorophyll and other volatiles during processing under pressure and the inherent differences in unlike oils such as Soy Bean Oil.

6 An additional point of comparison can be made using information from the previously mentioned study of the fluorescence of oils. The study showed that all the oils tested except for Extra Virgin Olive Oils, showed a strong fluorescence band in the nm. The study examined olive, olive residue, refined olive, corn, soybean, sunflower and cotton oils. Measuring the fluorescence of the same oil samples using the 405nm excitation capabilities of the NavSpec+ and examining them over the same nm range shows similar results as in Chart 2. The Extra Virgin Olive Oil fluoresces very little over the range while any adulteration or variation in type of oil results in a higher fluorescent value. Comparing the two charts, it is easy to see that the oils are chemically different from each other and in manners that would be expected. This simple, easy to use procedure that requires virtually no sample preparation places a high level of analytical abilities in the hands of virtually any user.

7 While not 100% definitive, the results obtained using a Spectrophotometer/Fluorometer to compare oil samples are valuable not only to distributors but to the consumers. High prices associated with consumer demand for quality products and the magnitude of annual imports and the costs associated with them require reliable tools that give assurance to the buyers. Simple, accurate and low cost testing methods at multiple points along the distribution chain increase the confidence that the consumer can place on their purchases. NOTE: A copy of the new USDA standards can be found at:

8

9 i University of California at Davis, July 2010 ii International Olive Council, November 2010 iii North American Olive Oil Association, Chairman s Report, January 2010 iv Kyrikidis & Skarkalis: Journal of Aoac International Vol. 83, No. 6, 2000

STANDARD FOR OLIVE OILS AND OLIVE POMACE OILS CODEX STAN Adopted in Revision: 1989, 2003, Amendment: 2009, 2013.

STANDARD FOR OLIVE OILS AND OLIVE POMACE OILS CODEX STAN Adopted in Revision: 1989, 2003, Amendment: 2009, 2013. STANDARD FOR OLIVE OILS AND OLIVE POMACE OILS CODEX STAN 33-1981 Adopted in 1981. Revision: 1989, 2003, 2015. Amendment: 2009, 2013. Formerly CAC/RS 33-1970. CODEX STAN 33-1981 2 1. SCOPE This standard

More information

INTERNATIONAL OLIVE COUNCIL

INTERNATIONAL OLIVE COUNCIL INTERNATIONAL OLIVE COUNCIL COI/T.20/Doc. No 19/Rev. 3 February 2015 ENGLISH Original: ENGLISH Príncipe de Vergara, 154 28002 Madrid España Telef.: +34 915 903 638 Fax: +34 915 631 263 - e-mail: iooc@internationaloliveoil.org

More information

DECISION No DEC-16/S.ex.27-V/2016 REVISING THE IOC CERTIFICATE FOR THE RECOGNITION OF PHYSICO CHEMICAL OLIVE OIL TESTING LABORATORIES

DECISION No DEC-16/S.ex.27-V/2016 REVISING THE IOC CERTIFICATE FOR THE RECOGNITION OF PHYSICO CHEMICAL OLIVE OIL TESTING LABORATORIES DECISION No DEC-16/S.ex.27-V/2016 REVISING THE IOC CERTIFICATE FOR THE RECOGNITION OF PHYSICO CHEMICAL OLIVE OIL TESTING LABORATORIES THE COUNCIL OF MEMBERS OF THE INTERNATIONAL OLIVE COUNCIL, Having regard

More information

Data/Result: Table 1: Group 10 s starting and ending volumes of NaOH, total volume of NaOH, and weight of olive oil

Data/Result: Table 1: Group 10 s starting and ending volumes of NaOH, total volume of NaOH, and weight of olive oil Determining Acidity of Olive Oils I. Purpose/Objective: The purpose is to identify percent of oleic acids in different types of olive oils. Using a prepared sodium hydroxide solution with a known normality,

More information

Introduction of food distinction technology by fluorescence fingerprint measurement with F-7000

Introduction of food distinction technology by fluorescence fingerprint measurement with F-7000 SCIENTIFIC INSTRUMENT NEWS 2015 Vol. 6 SEPTEMBER Technical magazine of Electron Microscope and Analytical Instruments. Technical Explanation Introduction of food distinction technology by fluorescence

More information

Testing olive oil quality: chemical and sensory methods

Testing olive oil quality: chemical and sensory methods AUGUST 2006 PRIMEFACT 231 Testing olive oil quality: chemical and sensory methods Dr Rod Mailer Principal Research Scientist (Oils), Pulse/Oilseed Genetics and Improvement, Wagga Wagga Clarrie Beckingham

More information

AHRI White Paper: Reports of R-134a Contaminated with R-40 and Other Refrigerants

AHRI White Paper: Reports of R-134a Contaminated with R-40 and Other Refrigerants AHRI White Paper: Reports of R-134a Contaminated with R-40 and Other Refrigerants Counterfeit R-134a, containing R-40 (Methyl Chloride or Chloromethane), has been found in mobile air conditioners, stationary

More information

Canola is the growth oil in the North American oilseeds complex

Canola is the growth oil in the North American oilseeds complex Dow AgroSciences Omega-9 Canola Oil The position of canola is changing within the North American food industry. Expansion of canola production and processing capacity are providing for greatly increased

More information

Outlook on the Global Sunflower Seed & Oil Market FABRICE TURON, OFI INDIA, 2016.

Outlook on the Global Sunflower Seed & Oil Market FABRICE TURON, OFI INDIA, 2016. Outlook on the Global Sunflower Seed & Oil Market FABRICE TURON, OFI INDIA, 2016. Global sunflower acreage expanded at 2.7% annually during the past ten years. This is quite notable as sunflower demand

More information

A Guide to Choosing What s Right for Your Kitchen H (09/09-10/10) FH DAS

A Guide to Choosing What s Right for Your Kitchen H (09/09-10/10) FH DAS A Guide to Choosing What s Right for Your Kitchen H45-320-020 (09/09-10/10) FH DAS 010-93112 Course Objectives o Provide basic information on how to purchase and handle cooking oils o Guide you in selecting

More information

Spectrophotometry and the Beer-Lambert Law: An Important Analytical Technique in Chemistry

Spectrophotometry and the Beer-Lambert Law: An Important Analytical Technique in Chemistry Spectrophotometry and the Beer-Lambert Law: An Important Analytical Technique in Chemistry Jon H. Hardesty, PhD and Bassam Attili, PhD Collin College Department of Chemistry Introduction: In the last lab

More information

INFRARED SPECTROSCOPY (IR)

INFRARED SPECTROSCOPY (IR) INFRARED SPECTROSCOPY (IR) Theory and Interpretation of IR spectra ASSIGNED READINGS Introduction to technique 25 (p. 833-834 in lab textbook) Uses of the Infrared Spectrum (p. 847-853) Look over pages

More information

Asian Journal of Food and Agro-Industry ISSN 1906-3040 Available online at www.ajofai.info

Asian Journal of Food and Agro-Industry ISSN 1906-3040 Available online at www.ajofai.info As. J. Food Ag-Ind. 008, (0), - Asian Journal of Food and Agro-Industry ISSN 906-00 Available online at www.ajofai.info Research Article Analysis of NIR spectral reflectance linearization and gradient

More information

Ahiflower Oil. Vegan Omega-3. The richest, most effective combined essential fatty acids from a single plant

Ahiflower Oil. Vegan Omega-3. The richest, most effective combined essential fatty acids from a single plant Ahiflower Oil Vegan Omega-3 The richest, most effective combined essential fatty acids from a single plant Ahiflower Oil Vegan Omega-3 PRO Better Than Flax. Not From Fish. For Sale Through Health Care

More information

Fortified Refined Sunflower Oil -SUNFLOWER OIL-

Fortified Refined Sunflower Oil -SUNFLOWER OIL- Specification reference: Sunflower Oil Version: 2.0 Date of issue: 20 th May 2011 Fortified Refined Sunflower Oil -SUNFLOWER OIL- 1. INTRODUCTION 1.1 Product type Sunflower Oil is derived from the dried

More information

Analysis of Vegetable Oils by High Performance Liquid Chromatography

Analysis of Vegetable Oils by High Performance Liquid Chromatography Analysis of Vegetable Oils by High Performance Liquid Chromatography Using Evaporative Light Scattering Detection and Normal Phase Eluents Andrew J. Aubin, Cecilia B. Mazza, Donald A. Trinite, and Patricia

More information

Photosynthesis - Exercise 6 Objectives

Photosynthesis - Exercise 6 Objectives The purpose of this lab exercise will be to examine several factors involved in photosynthesis. -The effect of the intensity of light (# of photons per time) on the rate of photosynthesis and know how

More information

From lowest energy to highest energy, which of the following correctly orders the different categories of electromagnetic radiation?

From lowest energy to highest energy, which of the following correctly orders the different categories of electromagnetic radiation? From lowest energy to highest energy, which of the following correctly orders the different categories of electromagnetic radiation? From lowest energy to highest energy, which of the following correctly

More information

Light. Light. Overview. In-class activity. What are waves? In this section: PSC 203. What is it? Your thoughts?

Light. Light. Overview. In-class activity. What are waves? In this section: PSC 203. What is it? Your thoughts? Light PSC 203 Overview In this section: What is light? What is the EM Spectrum? How is light created? What can we learn from light? In-class activity Discuss your answers in groups of 2 Think of as many

More information

FIXED OILS & BUTTERS PROPERTIES

FIXED OILS & BUTTERS PROPERTIES FIXED OILS & BUTTERS PROPERTIES After Touch Cleansing Absorbtion Glide After Touch Color Points of Interest Apricot Kernel No No Creamy Stable Conditioning Average Average Excellent Slippery Light weight

More information

Types of Cooking Fats and Oils - Smoking Points of Fats and Oils

Types of Cooking Fats and Oils - Smoking Points of Fats and Oils Types of Cooking Fats and s - Smoking Points of Fats and s Not all fats are the same. Following are some basics on the various types of fats to help you make sense of what is best for your own body. Saturated

More information

Ch. 57 MILK AND DAIRY PRODUCTS 7 CHAPTER 57. MILK AND DAIRY PRODUCTS GENERAL PROVISIONS

Ch. 57 MILK AND DAIRY PRODUCTS 7 CHAPTER 57. MILK AND DAIRY PRODUCTS GENERAL PROVISIONS Ch. 57 MILK AND DAIRY PRODUCTS 7 CHAPTER 57. MILK AND DAIRY PRODUCTS GENERAL PROVISIONS Subchap. Sec. A. MILK AND DAIRY PRODUCTS DEFINITIONS AND STANDARDS... 57.1 B. LABELING... 57.41 C. OTHER DAIRY PRODUCTS...

More information

Analysis of Riboflavin in a Vitamin Pill by Fluorescence Spectroscopy**

Analysis of Riboflavin in a Vitamin Pill by Fluorescence Spectroscopy** Analysis of Riboflavin in a Vitamin Pill by Fluorescence Spectroscopy** Objectives In this lab, you will use fluorescence spectroscopy to determine the mass and percentage of riboflavin in a vitamin pill.

More information

Global Supply Chains in the World Economy

Global Supply Chains in the World Economy Global Supply Chains in the World Economy The Case of Agri-Food Supply Chains in the ESCWA region Professor Konstantinos G. Zografos, Dr. Dermot Carey and Peter Smyth May 2013 United Nations Economic and

More information

The photoionization detector (PID) utilizes ultraviolet

The photoionization detector (PID) utilizes ultraviolet Chapter 6 Photoionization Detectors The photoionization detector (PID) utilizes ultraviolet light to ionize gas molecules, and is commonly employed in the detection of volatile organic compounds (VOCs).

More information

There are many different types of glycerin grades ranging from crude glycerin to refined glycerin (pharmaceutical grade).

There are many different types of glycerin grades ranging from crude glycerin to refined glycerin (pharmaceutical grade). What is? (Glycerol) is a clear, odorless, viscous liquid with a naturally sweet taste. It is derived from both natural and petrochemical feedstocks. occurs in combined form (triglycerides) in animal fats

More information

Agricultural Contracts and Risk Management

Agricultural Contracts and Risk Management Agricultural Contracts and Risk Management Rachael E. Goodhue Agricultural and Resource Economics University of California, Davis Leo K. Simon Agricultural and Resource Economics University of California,

More information

Lab 9: Bacterial Transformation & Spectrophotometry, Part 1

Lab 9: Bacterial Transformation & Spectrophotometry, Part 1 Lab 9: Bacterial Transformation & Spectrophotometry, Part 1 Activity 9a Bacterial Transformation, Part 1 Purpose and Background In this lab, you will perform a procedure known as genetic transformation.

More information

Expt B: Determining the Equilibrium Constant of Bromothymol Blue. Keywords: Equilibrium Constant, ph, indicator, spectroscopy

Expt B: Determining the Equilibrium Constant of Bromothymol Blue. Keywords: Equilibrium Constant, ph, indicator, spectroscopy Objectives: Keywords: Equilibrium Constant, ph, indicator, spectroscopy Prepare all solutions needed for measurement of the equilibrium constant for bromothymol Make the required spectroscopic measurements

More information

Qualitative NIR Analysis for Ingredients in the Baking Industry

Qualitative NIR Analysis for Ingredients in the Baking Industry Overview The challenge to all baking companies in today s economy is to operate plants as efficiently as possible, with a focus on quality and keeping costs in check. With regulatory issues becoming more

More information

Town of Needham Trans Fat Ban

Town of Needham Trans Fat Ban Town of Needham Trans Fat Ban Presented by: Jen Tuttelman, MS, RD, LDN Tara Gurge, R.S., C.E.H.T., M.S. The Needham Health Department June 5, 2009 9:00-10:00 am Agenda Welcome and Introductions Trans Fat

More information

QUANTITATIVE INFRARED SPECTROSCOPY. Willard et. al. Instrumental Methods of Analysis, 7th edition, Wadsworth Publishing Co., Belmont, CA 1988, Ch 11.

QUANTITATIVE INFRARED SPECTROSCOPY. Willard et. al. Instrumental Methods of Analysis, 7th edition, Wadsworth Publishing Co., Belmont, CA 1988, Ch 11. QUANTITATIVE INFRARED SPECTROSCOPY Objective: The objectives of this experiment are: (1) to learn proper sample handling procedures for acquiring infrared spectra. (2) to determine the percentage composition

More information

Fundamentals of modern UV-visible spectroscopy. Presentation Materials

Fundamentals of modern UV-visible spectroscopy. Presentation Materials Fundamentals of modern UV-visible spectroscopy Presentation Materials The Electromagnetic Spectrum E = hν ν = c / λ 1 Electronic Transitions in Formaldehyde 2 Electronic Transitions and Spectra of Atoms

More information

Mercedes-Benz Biodiesel Brochure

Mercedes-Benz Biodiesel Brochure Mercedes-Benz Biodiesel Brochure Contents Definitions of Bio-Based Diesel Fuel Main Quality Characteristics of Straight Biodiesel Risks from the use of Diesel Fuel Containing Biodiesel Impacts of Biodiesel

More information

Three Key Paper Properties

Three Key Paper Properties Three Key Paper Properties Whiteness, Brightness and Shade Demystifying Three Key Paper Properties Whiteness, Brightness and Shade Xerox Supplies, See the Difference Quality Makes Prepared by: Xerox Corporation

More information

Quantitative Evaluation of Perfume Fleuressence Samples using the znose

Quantitative Evaluation of Perfume Fleuressence Samples using the znose Quantitative Evaluation of Perfume Fleuressence Samples using the znose Edward J. Staples, Electronic Sensor Technology Electronic Noses Conventional electronic noses (enoses) produce a recognizable response

More information

Analysis of Fat-Soluble Vitamin Capsules using UltraPerformance Convergence Chromatography (UPC 2 )

Analysis of Fat-Soluble Vitamin Capsules using UltraPerformance Convergence Chromatography (UPC 2 ) Analysis of Fat-Soluble Vitamin Capsules using UltraPerformance Convergence Chromatography (UPC 2 ) Andrew Aubin Waters Corporation, Milford, MA, USA A P P L I C AT ION B E N E F I T S Fast analysis of

More information

Enhanced Diode Array Detector Sensitivity and Automated Peak Purity Control

Enhanced Diode Array Detector Sensitivity and Automated Peak Purity Control Enhanced Diode Array Detector Sensitivity and Automated Peak Purity Control Technical Note Introduction The most widely used detection technique for HPLC analysis is UV absorption. Over the decades, single

More information

LIQUID CHROMATOGRAPHY HOW MUCH ASPIRIN, ACETAMINOPHEN, AND CAFFEINE ARE IN YOUR PAIN RELIEVER? USING HPLC TO QUANTITATE SUBSTANCES (Revised: 1-13-93)

LIQUID CHROMATOGRAPHY HOW MUCH ASPIRIN, ACETAMINOPHEN, AND CAFFEINE ARE IN YOUR PAIN RELIEVER? USING HPLC TO QUANTITATE SUBSTANCES (Revised: 1-13-93) INTRODUCTION HOW MUCH ASPIRIN, ACETAMINOPHEN, AND CAFFEINE ARE IN YOUR PAIN RELIEVER? USING HPLC TO QUANTITATE SUBSTANCES (Revised: 1-13-93) Headache, sore muscles, arthritis pain... How do you spell relief?

More information

Experiment #5: Qualitative Absorption Spectroscopy

Experiment #5: Qualitative Absorption Spectroscopy Experiment #5: Qualitative Absorption Spectroscopy One of the most important areas in the field of analytical chemistry is that of spectroscopy. In general terms, spectroscopy deals with the interactions

More information

Palm Oil: The Story behind The Story A Balanced Perspective

Palm Oil: The Story behind The Story A Balanced Perspective Palm Oil: The Story behind The Story A Balanced Perspective In recent months several articles criticizing palm oil have been published in the Belgian and international press. In SIPEF s opinion most of

More information

An HPLC Analysis of Sweeteners in Beverages

An HPLC Analysis of Sweeteners in Beverages CHEM 311L Quantitative Analysis Laboratory Version 1.1 An HPLC Analysis of Sweeteners in Beverages In this laboratory exercise we will perform a separation of the components of diet soft drinks using reversed-phase

More information

CALIBRATION HOW IT WORKS

CALIBRATION HOW IT WORKS PHOTO DETECTORS HIGH POWER SOLUTIONS POWER DETECTORS ENERGY DETECTORS At Gentec-EO, we understand that the essence of our business since 40 years has been delivering accuracy. There are no half measures:

More information

LAB TOPIC 4: ENZYMES. Enzyme catalyzed reactions can be expressed in the following way:

LAB TOPIC 4: ENZYMES. Enzyme catalyzed reactions can be expressed in the following way: LAB TOPIC 4: ENZYMES Objectives Define enzyme and describe the activity of enzymes in cells. Discuss the effects of varying enzyme concentrations on the rate of enzyme activity. Discuss the effects of

More information

ANALYSIS OF ASPIRIN INFRARED (IR) SPECTROSCOPY AND MELTING POINT DETERMINATION

ANALYSIS OF ASPIRIN INFRARED (IR) SPECTROSCOPY AND MELTING POINT DETERMINATION Chem 306 Section (Circle) M Tu W Th Name Partners Date ANALYSIS OF ASPIRIN INFRARED (IR) SPECTROSCOPY AND MELTING POINT DETERMINATION Materials: prepared acetylsalicylic acid (aspirin), stockroom samples

More information

Lipids. Benjamin Caballero, MD, PhD Johns Hopkins University

Lipids. Benjamin Caballero, MD, PhD Johns Hopkins University This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike License. Your use of this material constitutes acceptance of that license and the conditions of use of materials on this

More information

Trans Fat Intake by the U.S. Population

Trans Fat Intake by the U.S. Population Trans Fat Intake by the U.S. Population Diana Doell, Ph.D. Office of Food Additive Safety Center for Food Safety and Applied Nutrition Food and Drug Administration GMA Science Forum Washington D.C. April

More information

Report on comparative analysis of wines

Report on comparative analysis of wines Report on comparative analysis of wines sealed with and alternate closures Preciosa GS, a. s. and University of Geisenheim Enology and Wine Technology Department November 2011 During May 2006, three different

More information

Lipid & Fat: Overview

Lipid & Fat: Overview Lipid & Fat: Overview What is a lipid? Triglycerides, phospholipids and sterols Triglycerides = Fat Saturated & unsaturated Essential fatty acids ü Omega 3 & Omega 6 Trans fat Why do you need fat? How

More information

9- Labeled Immunoassays Fluorescent & Chemiluminescent Immunoassays

9- Labeled Immunoassays Fluorescent & Chemiluminescent Immunoassays 9- Labeled Immunoassays Fluorescent & Chemiluminescent Immunoassays In 1944 it was demonstrated that antibodies could be labeled with molecules that fluoresce. These fluorescent compounds are called fluorophores

More information

BUYING BULK OLIVE OIL FOR MANUFACTURING

BUYING BULK OLIVE OIL FOR MANUFACTURING THE ULTIMATE GUIDE TO BUYING BULK OLIVE OIL FOR MANUFACTURING A Step-by-Step Guide to Choosing Olive Oil and Saving Money!"#$%&'()*+,"-.+/ 2 BUYING BULK OLIVE OIL FOR MANUFACTURING IS THIS BOOK RIGHT FOR

More information

How to measure Chlorophyll-a

How to measure Chlorophyll-a World Bank & Government of The Netherlands funded Training module # WQ - 40 How to measure Chlorophyll-a New Delhi, March 2000 CSMRS Building, 4th Floor, Olof Palme Marg, Hauz Khas, New Delhi 11 00 16

More information

UV/Vis Spectroscopy. Varka Evi-Maria Ph.D. Chemist AUTH Thessaloniki 2012

UV/Vis Spectroscopy. Varka Evi-Maria Ph.D. Chemist AUTH Thessaloniki 2012 UV/Vis Spectroscopy Varka Evi-Maria Ph.D. Chemist AUTH Thessaloniki 2012 Introduction of Spectroscopy The structure of new synthesised molecules or isolated compounds from natural sources in the lab must

More information

UC Irvine FOCUS! 5 E Lesson Plan

UC Irvine FOCUS! 5 E Lesson Plan UC Irvine FOCUS! 5 E Lesson Plan Title: Flame Tests Grade Level and Course: 7 th Grade Life Science, 8 th Grade Physical Science, 9-12 th Grade Chemistry Materials: Spatulas (straws cut at an angle) Sterno

More information

Molecular Spectroscopy

Molecular Spectroscopy Molecular Spectroscopy UV-Vis Spectroscopy Absorption Characteristics of Some Common Chromophores UV-Vis Spectroscopy Absorption Characteristics of Aromatic Compounds UV-Vis Spectroscopy Effect of extended

More information

The California Fresh Produce Industry and Marketing Trends

The California Fresh Produce Industry and Marketing Trends The California Fresh Produce Industry and Marketing Trends DR. ROBERTA COOK Dept. of Agricultural and Resource Economics University of California Davis For Labor, Water and California Agriculture in 2014

More information

Let s Talk Oils and Fats!

Let s Talk Oils and Fats! Lesson Overview Lesson Participants: School Nutrition Assistants/Technicians, School Nutrition Managers, Child and Adult Care Food Program Staff, Teachers Type of Lesson: Short, face-to-face training session

More information

CHAPTER TWENTYONE FOOD, GLORIOUS FOOD: AGRICULTURAL COMMODITIES. October 2007

CHAPTER TWENTYONE FOOD, GLORIOUS FOOD: AGRICULTURAL COMMODITIES. October 2007 CHAPTER TWENTYONE FOOD, GLORIOUS FOOD: AGRICULTURAL COMMODITIES October 27 FOOD, GLORIOUS FOOD: AGRICULTURAL COMMODITIES Structural factors behind rising food prices in the BRICs higher incomes and demand

More information

Analyze IQ Spectra Manager Version 1.2

Analyze IQ Spectra Manager Version 1.2 Analyze IQ Spectra Manager Version 1.2 User Manual Document Version: 1.2-2010-02-15 Copyright Analyze IQ Limited, 2008-2010. All Rights Reserved. Table of Contents 1 Introduction... 3 2 Installation...

More information

EXPERIMENT 5. Molecular Absorption Spectroscopy: Determination of Iron With 1,10-Phenanthroline

EXPERIMENT 5. Molecular Absorption Spectroscopy: Determination of Iron With 1,10-Phenanthroline EXPERIMENT 5 Molecular Absorption Spectroscopy: Determination of Iron With 1,10-Phenanthroline UNKNOWN Submit a clean, labeled 100-mL volumetric flask to the instructor so that your unknown iron solution

More information

Appendix E: Graphing Data

Appendix E: Graphing Data You will often make scatter diagrams and line graphs to illustrate the data that you collect. Scatter diagrams are often used to show the relationship between two variables. For example, in an absorbance

More information

meat standards australia

meat standards australia meat standards australia 2 Australian MSA beef comes from the world s leading eating quality grading system. This is your symbol for tender, juicy and flavoursome beef, every single time. The MSA symbol,

More information

Graphite Furnace AA, Page 1 DETERMINATION OF METALS IN FOOD SAMPLES BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROSCOPY (VERSION 1.

Graphite Furnace AA, Page 1 DETERMINATION OF METALS IN FOOD SAMPLES BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROSCOPY (VERSION 1. Graphite Furnace AA, Page 1 DETERMINATION OF METALS IN FOOD SAMPLES BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROSCOPY I. BACKGROUND (VERSION 1.0) Atomic absorption spectroscopy (AAS) is a widely used

More information

20th ANNUAL. About Nutrition INSIGHTS INTO NUTRITION, HEALTH AND SOYFOODS UNITED SOYBEAN BOARD

20th ANNUAL. About Nutrition INSIGHTS INTO NUTRITION, HEALTH AND SOYFOODS UNITED SOYBEAN BOARD 20th ANNUAL About Nutrition INSIGHTS INTO NUTRITION, HEALTH AND SOYFOODS UNITED SOYBEAN BOARD 20th Annual Survey Consumer Attitudes about Nutrition 2013 Healthcare professionals can utilize this study

More information

Analysis of Riboflavin in a Vitamin Pill by Fluorescence Spectroscopy

Analysis of Riboflavin in a Vitamin Pill by Fluorescence Spectroscopy Analysis of Riboflavin in a Vitamin Pill by Fluorescence Spectroscopy Objectives In this lab, you will use fluorescence spectroscopy to determine the mass of riboflavin in a vitamin pill. Riboflavin fluorescence

More information

Storage Conditions of Sausages

Storage Conditions of Sausages Storage Conditions of Sausages The allows to quickly and easily control the storage conditions of food and beverages by a fingerprint / pattern analysis taken from the sample s headspace. Sausage samples

More information

We have seen in the How

We have seen in the How : Examples Using Hedging, Forward Contracting, Crop Insurance, and Revenue Insurance To what extent can hedging, forward contracting, and crop and revenue insurance reduce uncertainty within the year (intrayear)

More information

EXPERIMENT 11 UV/VIS Spectroscopy and Spectrophotometry: Spectrophotometric Analysis of Potassium Permanganate Solutions.

EXPERIMENT 11 UV/VIS Spectroscopy and Spectrophotometry: Spectrophotometric Analysis of Potassium Permanganate Solutions. EXPERIMENT 11 UV/VIS Spectroscopy and Spectrophotometry: Spectrophotometric Analysis of Potassium Permanganate Solutions. Outcomes After completing this experiment, the student should be able to: 1. Prepare

More information

Chemistry 111 Lab: Intro to Spectrophotometry Page E-1

Chemistry 111 Lab: Intro to Spectrophotometry Page E-1 Chemistry 111 Lab: Intro to Spectrophotometry Page E-1 SPECTROPHOTOMETRY Absorption Measurements & their Application to Quantitative Analysis study of the interaction of light (or other electromagnetic

More information

3.003 Lab 4 Simulation of Solar Cells

3.003 Lab 4 Simulation of Solar Cells Mar. 9, 2010 Due Mar. 29, 2010 3.003 Lab 4 Simulation of Solar Cells Objective: To design a silicon solar cell by simulation. The design parameters to be varied in this lab are doping levels of the substrate

More information

Austin Peay State University Department of Chemistry Chem 1111. The Use of the Spectrophotometer and Beer's Law

Austin Peay State University Department of Chemistry Chem 1111. The Use of the Spectrophotometer and Beer's Law Purpose To become familiar with using a spectrophotometer and gain an understanding of Beer s law and it s relationship to solution concentration. Introduction Scientists use many methods to determine

More information

Margarines (2% Trans Fat or less)

Margarines (2% Trans Fat or less) Margarines (2% Trans Fat or less) Brand Name Store Size Pricing Price/100g Trans Fat Saturated Fat Sodium Becel Original Costco 1.81kg (4lb) $9.89 $0.55 0% 12.5% 70mg/10g Safeway 1.81kg $10.99 $0.61 Save-On

More information

Spectrophotometric Analysis

Spectrophotometric Analysis Spectrophotometric Analysis Overview: Spectrophotometry can be used in as an analytic tool in two significant ways. The light absorbed by a particular species will produce a pattern called a spectrum.

More information

ANALYTICAL TOOL FOR RAPID ANALYSIS OF EDIBLE OIL

ANALYTICAL TOOL FOR RAPID ANALYSIS OF EDIBLE OIL ANALYTICAL TOOL FOR RAPID ANALYSIS OF EDIBLE OIL MSc THESIS PROJECT CHEMICAL ENGINEERING AALBORG UNIVERSITY ESBJERG 1 Supervised by Lars Petersen Julius & Henrik Juhl. ANALYTICAL TOOL FOR RAPID ANALYSIS

More information

Assessment of Accuracy and Precision

Assessment of Accuracy and Precision 2 chapter Assessment of Accuracy and Precision S.S. Nielsen, Food Analysis Laboratory Manual, Food Science Texts Series, DOI 10.1007/978-1-4419-1463-7_2, Springer Science+Business Media, LLC 2010 9 Chapter

More information

Water Quality 2 - Determination of Ca, Mg, Fe, and Na by Flame Atomic Spectrophotometry

Water Quality 2 - Determination of Ca, Mg, Fe, and Na by Flame Atomic Spectrophotometry Water Quality 2 - Determination of Ca, Mg, Fe, and Na by Flame Atomic Spectrophotometry Introduction Atomic spectroscopy is one of the most widely used methods for quantitative elemental analysis. There

More information

Americans have been increasing their olive oil. How to Buy, Store and Eat Olive Oil. Olive Oil Consumption

Americans have been increasing their olive oil. How to Buy, Store and Eat Olive Oil. Olive Oil Consumption Carol Rees Parrish, M.S., R.D., Series Editor How to Buy, Store and Eat Olive Oil Bethany E. Blalock Olive oil consumption in the United States has increased dramatically since the 1990's and continues

More information

Typical commercial laboratory turn around - two days to two weeks In-house hexane/gravimetric several hours Results in the discharge of effluent

Typical commercial laboratory turn around - two days to two weeks In-house hexane/gravimetric several hours Results in the discharge of effluent On-site Oil and Grease Measurements in under a Minute Sandy Rintoul Wilks Enterprise, Inc. IPEC Booth #3 srintoul@wilksir.com www.wilksir.com Portable Field or Lab Analyzer Results in < 1 minute Rugged

More information

ABSORBENCY OF PAPER TOWELS

ABSORBENCY OF PAPER TOWELS ABSORBENCY OF PAPER TOWELS 15. Brief Version of the Case Study 15.1 Problem Formulation 15.2 Selection of Factors 15.3 Obtaining Random Samples of Paper Towels 15.4 How will the Absorbency be measured?

More information

MSU Product Center Strategic Marketing Institute. The Market for Orange Juice Challenges and Opportunities. Getachew Abate

MSU Product Center Strategic Marketing Institute. The Market for Orange Juice Challenges and Opportunities. Getachew Abate MSU Product Center Strategic Marketing Institute Working Paper 2-102605 The Market for Orange Juice Challenges and Opportunities Getachew Abate MSU Product Center For Agriculture and Natural Resources

More information

SSO Transmission Grating Spectrograph (TGS) User s Guide

SSO Transmission Grating Spectrograph (TGS) User s Guide SSO Transmission Grating Spectrograph (TGS) User s Guide The Rigel TGS User s Guide available online explains how a transmission grating spectrograph (TGS) works and how efficient they are. Please refer

More information

Which regions of the electromagnetic spectrum do plants use to drive photosynthesis?

Which regions of the electromagnetic spectrum do plants use to drive photosynthesis? Which regions of the electromagnetic spectrum do plants use to drive photosynthesis? Green Light: The Forgotten Region of the Spectrum. In the past, plant physiologists used green light as a safe light

More information

Beckman Coulter DU 800 Spectrophotometer Bergen County Technical Schools Stem Cell Lab

Beckman Coulter DU 800 Spectrophotometer Bergen County Technical Schools Stem Cell Lab Beckman Coulter DU 800 Spectrophotometer Bergen County Technical Schools Stem Cell Lab Room 213 Beckman Coulter DU 800 Spectrophotometer Safety Sheet 1. Samples should be handled according to good laboratory

More information

Understanding Your Choices In Flowmeter Calibration

Understanding Your Choices In Flowmeter Calibration Understanding Your Choices In Flowmeter Calibration Mubeen Almoustafa, Calibration Application Engineer Flow Dynamics. Inc. Across various industries, the performance of a flow measurement device is ultimately

More information

DRUG AND RELATED PRODUCTS (REGISTRATION, ETC. ) ACT 1996 (AS AMENDED) Food Additives Regulations 2005. Commencement:

DRUG AND RELATED PRODUCTS (REGISTRATION, ETC. ) ACT 1996 (AS AMENDED) Food Additives Regulations 2005. Commencement: S. I. of 2005 DRUG AND RELATED PRODUCTS (REGISTRATION, ETC. ) ACT 1996 (AS AMENDED) Food Additives Regulations 2005 Commencement: In exercise of the powers conferred on the Governing Council of the National

More information

A Look at Accelerated Photostability Testing for Packaged Food and Drinks

A Look at Accelerated Photostability Testing for Packaged Food and Drinks A Look at Accelerated Photostability Testing for Packaged Food and Drinks By Dr. Oliver Rahäuser and Dr. Artur Schönlein Atlas Material Testing Technology GmbH Vogelsbergstr. 22, 63589 Linsengericht-Altenhaßlau,

More information

UV Analysis of Sunscreens

UV Analysis of Sunscreens UV Analysis of Sunscreens Texas A&M University Organic Lab 238 The Electromagnetic Spectrum The UV region is the range of frequencies just higher than those for visible light UV-Vis energies correspond

More information

THE COLIPA SPF TEST METHOD THE DEVIL IS IN THE DETAIL. Mike Brown

THE COLIPA SPF TEST METHOD THE DEVIL IS IN THE DETAIL. Mike Brown THE COLIPA SPF TEST METHOD THE DEVIL IS IN THE DETAIL Mike Brown Suncare Scientific Adviser THE BOOTS COMPANY PLC Nottingham (UK) SCC Florida Chapter Sunscreen Symposium April 27th 2001 Contents INTRODUCTION

More information

Electron Energy and Light

Electron Energy and Light Why? Electron Energy and Light How does light reveal the behavior of electrons in an atom? From fireworks to stars, the color of light is useful in finding out what s in matter. The emission of light by

More information

UNIT: Electromagnetic Radiation and Photometric Equipment

UNIT: Electromagnetic Radiation and Photometric Equipment UNIT: Electromagnetic Radiation and Photometric Equipment 3photo.wpd Task Instrumentation I To review the theory of electromagnetic radiation and the principle and use of common laboratory instruments

More information

Proficiency Testing In A Global Analytical Environment Benefits & Challenges. AOAC September 2007

Proficiency Testing In A Global Analytical Environment Benefits & Challenges. AOAC September 2007 Proficiency Testing In A Global Analytical Environment Benefits & Challenges AOAC September 2007 1 The Coca-Cola Company The Coca-Cola Company is the largest manufacturer, distributor and marketer of nonalcoholic

More information

MARKET NEWSLETTER No 101 January 2016

MARKET NEWSLETTER No 101 January 2016 Trends in US olive oil imports: bulk and packaged Over the last two decades, US imports of olive oil and olive pomace oil have increased almost two and a half times, rising from 125 000 t in 1993/94 to

More information

PdM Overview. Predictive Maintenance Services

PdM Overview. Predictive Maintenance Services PdM Overview Predictive Maintenance Services Objective Assessments Maximize Uptime, Lower Costs Predictive Maintenance (PdM) solutions from Rexnord Industrial Services help manage the condition of your

More information

Victorian Tariff Innovation: Let s compare the price of progress.

Victorian Tariff Innovation: Let s compare the price of progress. Matthew Jones Victorian Tariff Innovation: Let s compare the price of progress. Matthew Jones Department of Economic Development, Jobs, Transport, and Resources (DEDJTR). 121 Exhibition Street Melbourne,

More information

Energy (J) -8E-19 -1.2E-18 -1.6E-18 -2E-18

Energy (J) -8E-19 -1.2E-18 -1.6E-18 -2E-18 Spectrophotometry Reading assignment:. http://en.wikipedia.org/wiki/beer-lambert_law Goals We will study the spectral properties of a transition metal-containing compound. We will also study the relationship

More information

FORMLABS WHITE PAPER: How Mechanical Properties of Stereolithography 3D Prints are Affected by UV Curing. By Zachary Zguris, PhD formlabs.

FORMLABS WHITE PAPER: How Mechanical Properties of Stereolithography 3D Prints are Affected by UV Curing. By Zachary Zguris, PhD formlabs. FORMLABS WHITE PAPER: How Mechanical Properties of Stereolithography 3D Prints are Affected by UV Curing By Zachary Zguris, PhD formlabs.com ABSTRACT The post-cure of parts printed with Formlabs resins

More information

Veterinary Compounding

Veterinary Compounding Veterinary Compounding Veterinarians occasionally use compounded preparations to meet a specific patient s medical need. The purpose of this brochure, created jointly by the Animal Health Institute (AHI),

More information

Nucleic Acid Purity Assessment using A 260 /A 280 Ratios

Nucleic Acid Purity Assessment using A 260 /A 280 Ratios Nucleic Acid Purity Assessment using A 260 /A 280 Ratios A common practice in molecular biology is to perform a quick assessment of the purity of nucleic acid samples by determining the ratio of spectrophotometric

More information

PUMPED Nd:YAG LASER. Last Revision: August 21, 2007

PUMPED Nd:YAG LASER. Last Revision: August 21, 2007 PUMPED Nd:YAG LASER Last Revision: August 21, 2007 QUESTION TO BE INVESTIGATED: How can an efficient atomic transition laser be constructed and characterized? INTRODUCTION: This lab exercise will allow

More information

Carlson Cod Liver Oil contains the important omega-3s, DHA & EPA.

Carlson Cod Liver Oil contains the important omega-3s, DHA & EPA. CodBrochure135L_Layout 1 7/19/13 10:34 AM Page 3 has been awarded the prestigious Superior Taste Award by the International Taste & Quality Institute in Europe for their Carlson Cod Liver Oil products.

More information