Yat Yun Wei Food Safety Division Health Sciences Authority. All Rights Reserved Health Sciences Authority

Size: px
Start display at page:

Download "Yat Yun Wei Food Safety Division Health Sciences Authority. All Rights Reserved Health Sciences Authority"

Transcription

1 Analytical Techniques in Food Authentication Yat Yun Wei Food Safety Division Health Sciences Authority 1

2 Outline of presentation What is Authentic Food? Why is there a need for reliable techniques for Food authentication? Analytical techniques - Chromatography - Spectroscopy - DNA and proteomics - Stable Isotopes Conclusion 2

3 What is Authentic Food? When is food not authentic? Economically Motivated Adulteration False Declaration of Geographical Origin False declaration of Farming Regime / production system 3

4 Food Authenticity Issues 1) Economically Motivated Adulteration (EMA) the fraudulent, intentional substitution or addition of substance in a product for the purpose of increasing the apparent value of the product or reducing the cost of its production --- FDA Open Meeting on Economically Motivated Adulteration (2009) a) Addition of non-permitted substances to meet or enhance specifications b) Addition or Substitution of ingredients with lower-valued ones Melamine in milk Cheap Sugars in honey Premium rice with cheaper alternatives 4

5 Food Authenticity Issues 2) False declaration of geographical origin e.g. Labeling South American beef as British beef [1] European Commission established rules for associating food and agricultural products with a geographical location. Aim: To protect interests of both producers and consumers PDO PGI TSG [1] Heaton, K.; Kelly, S. et al. Food Chemistry (2008), 107, p

6 Food Authenticity Issues 3) False declaration of farming regime / production systems - Conventional Food labeled as Organic - Farmed fish labeled as wild fish - Non-corn-fed chicken labeled as corn-fed chicken [2] [2] 6

7 Problems arising from Food Authenticity Issues Reduced Confidence of consumers Health Concerns Difficulty in sale of Authentic products Need for reliable authentication techniques! 7

8 Top 5 analytical techniques for food authentication 1. HPLC 2. IR spectroscopy 3. GC 4. IRMS 5. Hyphenated MS Adulteration Geographical origin Farming regime Species Differentiation 7. PCR 9. ELISA Moore, J.C., Spink, J., Lipp, M. Journal of Food Science (2012), 77,pp R118-R126 8

9 Chromatographic techniques Detection of adulteration of targeted substances - melamine in milk by HPLC - Sudan dyes in egg yolk by HPLC Confirmation with a mass spectrometric method Detection of partial / total substitution with cheaper, similar alternatives by profile of specific classes of compounds or by detection of specific markers - Authenticity of fruit juices by LC profiling of polyphenols [3] - Authenticity of olive oil by GC profiling of fatty acids [4] [3] Nollet, L. Food Authentication by HPLC, Sept [4] Tsimidou, M.; Macrae, R.; Wilson, I. Food Chemistry (1987), 25, pp

10 Example: Authenticity of fruit juices by HPLC Different fruits have their own characteristic phenolic compounds: Grapefruit Juice Orange Juice Nollet, L. Food Authentication by HPLC, Sept

11 Spectroscopic techniques -IR Not specific analytes, but food composition as a whole Comparison of the food in question with a known Fingerprint Used in combination with chemometrics tools - Detection of adulteration of olive oil, honey [5] - Geographical Origin of olive oil [6] [5] [6] Tapp, H.S., Kemsley, E.K., et al. Journal of Agricultural and Food Chemistry (2003) 51,

12 Example: Geographical Origin of olive oil by FT-IR 100% success rate achieved from 8 variates Greece Italy Portugal Spain Tapp, H.S., Kemsley, E.K., et al. J. Agric. Food Chem. (2003) 51,

13 DNA and proteomics-based techniques Species Differentiation - Differences in DNA sequence, or protein and peptide markers allows differentiation between different animal or plant species Source: TODAYonline, 7 Nov

14 Stable Isotopic Techniques Some facts about stable isotopes Stable vs unstable isotopes Unstable isotopes are also known as radioisotopes. They have unstable nuclei and give off an extra neutron to attain stability (radioactive decay) Stable isotopes do not decay Example 14 C and 13 C are both isotopes of Carbon but 13 C is stable while 14 C is radioactive. 14

15 Common Stable Isotopes and their % composition S Source: Meier-Augenstein W. (2010) Stable Isotope Forensics. 15

16 How are Stable Isotopes useful to us? The distribution of isotopes is not the same throughout the earth and among different organisms This unbalanced distribution is known as fractionation of isotopes. The fractionation of isotopes gives rise to distinct isotopic signatures in plants and animals which is useful in the differentiation between botanical and geographical origins and farming regimes 16

17 Stable Isotope Analysis by Isotope Ratio Mass Spectrometry (IRMS) 13 C/ 12 C 15 N/ 14 N 18 O/ 16 O 2 H/ 1 H 34 S/ 32 S 17

18 Useful Applications of Stable Isotopes in Food Authentication Botanical Origin Geographical Origin Farming Regime / Production System 18

19 Useful Applications of Stable Isotopes in Food Authentication Botanical Origin Geographical Origin Farming Regime / Production System 19

20 Botanical Origin Difference in photosynthetic pathways results in different Carbon isotopic ratios C 3 plants C 4 plants Absorbs 13 C more slowly than 12 C Less enriched in 13 C Lower 13 C/ 12 C ratios Wheat, oranges, flowering plants Absorbs 13 C more quickly than 12 C More enriched in 13 C Higher 13 C/ 12 C ratios Cane, maize 20

21 Application: Adulteration of honey Authentic honey has the carbon isotopic signature characteristic of a C 3 plant. Adulteration in the form of cheaper sugars, such as cane and corn sugars (C 4 ) Harms the honey industry and damages consumer confidence. AOAC Official Method C 4 plant sugars in honey C Isotopic ratios of bulk honey and extracted protein are % C-4 sugars > 7% analyzed Adulteration!! C 4 sugars shift the Carbon isotopic ratio of honey but not the protein 21

22 N Isotopes Soil Nutrition H and O Isotopes Precipitation and groundwater Geographical Origin C Isotopes Diet (C3 or C4) Elemental Profile Soil composition Stable Isotope Analysis is often used hand-in-hand with Elemental Analysis, Data is further subjected to multivariate statistical analysis 22

23 Application: Geographical Origin of rice Joint collaboration between HSA and FERA,UK. 226 samples of rice, 15 different countries Objective is to classify the different rice samples into their respective regions by Canonical Discriminant Analysis (CDA) C, N, H, O Stable Isotopes (IRMS) + Multiple elements (ICPMS) Li, A. Separation Science Asia, June Food Safety through provenancing of the food we eat 23

24 Rice Classification by CDA Further Classification India & Pakistan Southeast Asia Li, A. Separation Science Asia, June Food Safety through provenancing of the food we eat 24

25 Further Classification by CDA Analytes selected for CDA include: δ 13 C, δ 15 N, δ 18 O, Mg, Al, K, Mn, Fe, Co, Cu, Zn, Se, Mo, Cd Li, A. Separation Science Asia, June Food Safety through provenancing of the food we eat 25

26 Synthetic fertilizer or organic manure? Caged or freerange chicken? Wheat-based or maize-based diet? Farming Regimes Wild fish or farmed fish? Organic or conventional? 26

27 Application: Determination of farming regime of fish Wild or Farmed? Wild Cod shows higher 15 N/ 14 N and 13 C/ 12 C ratios than farmed cod Due to a difference in diet Bay, L.; Chan J.S.H.; Walzyck, T. 19 th International Mass Spectrometry Conference (2012) 27

28 Conclusion A multi-disciplinary approach is often necessary to solve the authentication problem. 28

29 The End 29

Food authenticity and adulteration testing using trace elemental and inorganic mass spectrometric techniques

Food authenticity and adulteration testing using trace elemental and inorganic mass spectrometric techniques Food authenticity and adulteration testing using trace elemental and inorganic mass spectrometric techniques Michal Godula, Ph.D. Thermo Fisher Scientific The world leader in serving science Overview Food

More information

Protection and Control of Geographical Indications - Tools for detecting IPR violations and food fraud

Protection and Control of Geographical Indications - Tools for detecting IPR violations and food fraud Protection and Control of Geographical Indications - Tools for detecting IPR violations and food fraud Food Authenticity testing in Eurofins : the use of isotopic and NMR methods to control the origin

More information

ISO-FOOD ERA Chair for isotope techniques in food quality, safety and traceability. Isotopes in food research

ISO-FOOD ERA Chair for isotope techniques in food quality, safety and traceability. Isotopes in food research ISO-FOOD ERA Chair for isotope techniques in food quality, safety and traceability Isotopes in food research The ISO-FOOD ERA Chair for isotope techniques in food quality, safety and traceability develops

More information

Organic farming: possibilities and limitations of stable isotope testing

Organic farming: possibilities and limitations of stable isotope testing Organic farming: possibilities and limitations of stable isotope testing Dr. Werner Nader Eurofins Global ontrol GmbH Februar 2010 www.eurofins.de Eurofins pioneer in stable isotope analysis SNIF-NMR -

More information

Dipartimento di Chimica

Dipartimento di Chimica Dipartimento di Chimica REGIONE PUGLIA ACCORDO DI PROGRAMMA QUADRO RICERCA SCIENTIFICA II ATTO INTEGRATIVO. RETI DI LABORATORI PUBBLICI DI RICERCA APULIAN FOOD FINGERPRINT: VALORISATION OF APULIAN FOOD

More information

A Preliminary Study on Adulteration Control of Greek Monofloral Honeys Using Isotope Ratio Mass Spectrometry

A Preliminary Study on Adulteration Control of Greek Monofloral Honeys Using Isotope Ratio Mass Spectrometry A Preliminary Study on Adulteration Control of Greek Monofloral Honeys Using Isotope Ratio Mass Spectrometry Karabagias IK 1,2*, Casiello G 2 and Longobardi F 2 1 Laboratory of Food Chemistry, Department

More information

Stable isotope analytical methods

Stable isotope analytical methods Stable isotope analytical methods Powerful to ensure food and beverage authenticity. Based on the principle that C, H, O, N of organic matter exist in their naturally occurring isotopic forms - 13 C/ 12

More information

MISSION STATEMENT. The PNRI contributes to the improvement of the quality of Filipino life through the

MISSION STATEMENT. The PNRI contributes to the improvement of the quality of Filipino life through the Our Organization Our Organization MISSION STATEMENT The PNRI contributes to the improvement of the quality of Filipino life through the highest standards of nuclear research and development, specialized

More information

National Technical University of Athens School of Applied Mathematical and Physical sciences

National Technical University of Athens School of Applied Mathematical and Physical sciences Foundation for Research and Technology-Hellas (FORTH) Institute of Electronic structure and Laser (IESL) School of Applied Mathematical and Physical sciences School of Applied Mathematical and Physical

More information

Stable Isotope Analysis to detect Food Adulteration and Fraud

Stable Isotope Analysis to detect Food Adulteration and Fraud Stable Isotope Analysis to detect Food Adulteration and Fraud Simon KELLY, Aiman ABRAHIM, Marivil ISLAM, Zora JANDRIC, Britt MAESTRONI and Andrew CANNAVAN Food and Environmental Protection Laboratory &

More information

A study of stable isotope composition of chosen foodstuffs from the Polish market

A study of stable isotope composition of chosen foodstuffs from the Polish market UKLEOIKA 2;8(2):323 327 ORIGIAL PAPER A study of stable isotope composition of chosen foodstuffs from the Polish market Kazimiera Malec-zechowska, Ryszard Wierzchnicki Abstract. In the present work the

More information

Measurement of Carbon Isotope Ratios of Honey Samples from Turkey by EA-IRMS

Measurement of Carbon Isotope Ratios of Honey Samples from Turkey by EA-IRMS Measurement of Carbon Isotope Ratios of Honey Samples from Turkey by EA-IRMS Pelin K. Yücel a, Hülya Güçlü a, Yüksel Mert a, Okan Oktar a, Turhan Köseoğlu a, Bahri Yılmaz b a Turkish Atomic Energy Authority,

More information

Detection and Quantification of Adulteration in Honey through Near Infrared Spectroscopy

Detection and Quantification of Adulteration in Honey through Near Infrared Spectroscopy Proceedings of the 2014 International Conference of Food Properties (ICFP 2014) Kuala Lumpur, Malaysia, January 24-26, 2014 Detection and Quantification of Adulteration in Honey through Near Infrared Spectroscopy

More information

Agilent Solutions for Traditional Medicine. Ramaswami.R, General Manager-CAG Agilent Technologies India.

Agilent Solutions for Traditional Medicine. Ramaswami.R, General Manager-CAG Agilent Technologies India. Agilent Solutions for Traditional Medicine Ramaswami.R, General Manager-CAG Agilent Technologies India. Traditional Medicine in India Thousands of Plants are the basic resources or raw materials involved

More information

FTIR characterization of Mexican honey and its adulteration with sugar syrups by using chemometric methods

FTIR characterization of Mexican honey and its adulteration with sugar syrups by using chemometric methods Journal of Physics: Conference Series FTIR characterization of Mexican honey and its with sugar syrups by using chemometric methods To cite this article: M A Rios-Corripio et al 11 J. Phys.: Conf. Ser.

More information

MEASUREMENT OF CARBON ISOTOPE RATIOS OF HONEY SAMPLES FROM TURKEY BY EA-IRMS

MEASUREMENT OF CARBON ISOTOPE RATIOS OF HONEY SAMPLES FROM TURKEY BY EA-IRMS XXXXIII International Apicultural Congress 29 September 04 October 2013 MEASUREMENT OF CARBON ISOTOPE RATIOS OF HONEY SAMPLES FROM TURKEY BY EA-IRMS Dr. Hülya GÜÇLÜ Pelin K. Yücel a, Hülya Güçlü a, Yüksel

More information

Unit 8 Angiosperms Student Guided Notes

Unit 8 Angiosperms Student Guided Notes Unit 8 Angiosperms Student Guided Notes Angiosperms General Characteristics of FloweringPlants All belong to the division Magnoliophyta and. Developing from the flower is. This extremely diverse division

More information

Application of Raman Spectroscopy for Detection of Aflatoxins and Fumonisins in Ground Maize Samples

Application of Raman Spectroscopy for Detection of Aflatoxins and Fumonisins in Ground Maize Samples Application of Raman Spectroscopy for Detection of Aflatoxins and Fumonisins in Ground Maize Samples Kyung-Min Lee and Timothy J. Herrman Office of the Texas State Chemist, Texas A&M AgriLife Research

More information

International Symposium Standardisation of non-targeted methods for food authentication, Session II: Standardisation of Analytical Methods

International Symposium Standardisation of non-targeted methods for food authentication, Session II: Standardisation of Analytical Methods International Symposium Standardisation of non-targeted methods for food authentication, Session II: Standardisation of Analytical Methods Challenges in Nuclear Magnetic Resonance Spectroscopy Based Non-

More information

Chemistry Unit 5 Exam Study Guide Nuclear Chemistry

Chemistry Unit 5 Exam Study Guide Nuclear Chemistry Chemistry Unit 5 Exam Study Guide Nuclear Chemistry Define the following vocabulary terms: Radioactivity Radiation Alpha Particle Beta Particle Gamma Ray Transmutation Half-life Nuclear Decay Nuclear Fission

More information

Radionuclides in food and water. Dr. Ljudmila Benedik

Radionuclides in food and water. Dr. Ljudmila Benedik Radionuclides in food and water Dr. Ljudmila Benedik ISO-FOOD WP 3 and WP4 WP 3 Research and education P1 Food authenticity P2 Translation of regional isotopic and elemental signatures from natural environment

More information

Multivariate analysis (chemometrics) - quality of multivariate calibration

Multivariate analysis (chemometrics) - quality of multivariate calibration Multivariate analysis (chemometrics) - quality of multivariate calibration Wolfhard Wegscheider with contributions by Alessandra Rachetti 15 May 2018 Outline Historical reminescence: how it all started

More information

CHAPTER 2--LIFE'S CHEMICAL BASIS

CHAPTER 2--LIFE'S CHEMICAL BASIS CHAPTER 2--LIFE'S CHEMICAL BASIS Student: 1. People are most likely to ingest large amounts of mercury by eating A. soy products. B. chicken. C. beef. D. large predatory fish. E. small herbivorous fish.

More information

ENHANCING FOOD SAFETY AND QUALITY THROUGH ISOTOPIC TECHNIQUES FOR FOOD TRACEABILITY A. Introduction

ENHANCING FOOD SAFETY AND QUALITY THROUGH ISOTOPIC TECHNIQUES FOR FOOD TRACEABILITY A. Introduction ENHANCING FOOD SAFETY AND QUALITY THROUGH ISOTOPIC TECHNIQUES FOR FOOD TRACEABILITY A. Introduction Producing safe and high quality food is a prerequisite to ensure consumer health and successful domestic

More information

CELLS AND THE CHEMISTRY OF LIFE

CELLS AND THE CHEMISTRY OF LIFE 2 CELLS AND THE CHEMISTRY OF LIFE Chapter Overview In Chapter 2, Dr. Jay Levy provides detail and commentary on AIDS (acquired immune deficiency disease). AIDS and its assault on human cells give us a

More information

Discrimination of Dyed Cotton Fibers Based on UVvisible Microspectrophotometry and Multivariate Statistical Analysis

Discrimination of Dyed Cotton Fibers Based on UVvisible Microspectrophotometry and Multivariate Statistical Analysis Discrimination of Dyed Cotton Fibers Based on UVvisible Microspectrophotometry and Multivariate Statistical Analysis Elisa Liszewski, Cheryl Szkudlarek and John Goodpaster Department of Chemistry and Chemical

More information

FOURIER TRANSFORMED INFRA RED SPECTROSCOPY IN BEEPRODUCTS ANALYSIS SPECTROSCOPIA FTIR ÎN ANALIZA PRODUSELOR APICOLE

FOURIER TRANSFORMED INFRA RED SPECTROSCOPY IN BEEPRODUCTS ANALYSIS SPECTROSCOPIA FTIR ÎN ANALIZA PRODUSELOR APICOLE Lucrări ştiinńifice Zootehnie şi Biotehnologii, vol. 41 (2) (2008), Timişoara FOURIER TRANSFORMED INFRA RED SPECTROSCOPY IN BEEPRODUCTS ANALYSIS SPECTROSCOPIA FTIR ÎN ANALIZA PRODUSELOR APICOLE MĂRGHITAŞ

More information

Fission is the process by which energy is released in the nuclear reactor. Figure 1. Figure 2

Fission is the process by which energy is released in the nuclear reactor. Figure 1. Figure 2 Q1.Electricity is generated in a nuclear power station. Fission is the process by which energy is released in the nuclear reactor. (a) Figure 1 shows the first part of the nuclear fission reaction. Complete

More information

INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE

INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE CPC - C05D - 2017.08 C05D INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE Fertiliser compositions containing potassium, calcium, magnesium and others, including

More information

Unit 5 Lesson 3 Measuring ph. Copyright Houghton Mifflin Harcourt Publishing Company

Unit 5 Lesson 3 Measuring ph. Copyright Houghton Mifflin Harcourt Publishing Company What s Your Number? What is the ph scale? The ph of a solution is a measure of how acidic or basic a solution is. A solution that has a ph value of exactly 7 is neutral neither acidic nor basic. A solution

More information

Addressing adulteration with stable isotopes.

Addressing adulteration with stable isotopes. Addressing adulteration with stable isotopes. March 2008 Key application areas of stable isotopes Food Authentication Flavours, wine, juices, honey adulteration Environmental Science Agriculture, Forestry

More information

Rapid Detection of Americium-241 in Food by Inductively-Coupled Plasma Mass Spectrometry

Rapid Detection of Americium-241 in Food by Inductively-Coupled Plasma Mass Spectrometry Rapid Detection of Americium-241 in Food by Inductively-Coupled Plasma Mass Spectrometry Zhichao Lin, Kathryn Emanuele, Stephanie Healey, and Patrick Regan Analytical Branch Winchester Engineering and

More information

H H C C 1.11 N N 0.37 O O O S 0.014

H H C C 1.11 N N 0.37 O O O S 0.014 Stable isotopes Element Isotope Abundance (%) Hydrogen [1] 1 H 99.985 2 H 0.015 Carbon [6] 12 C 98.89 13 C 1.11 Nitrogen [7] 14 N 99.63 15 N 0.37 Oxygen [8] 16 O 99.759 17 O 0.037 18 O 0.204 Sulfur [16]

More information

Chemometrics in method validation why?

Chemometrics in method validation why? Chemometrics in method validation why? 10th Jone Omar May 2016, Gent Eurachem 2016 Joint Research Centre the European Commission's in-house science service Early career scientist Who am I? PhD in analytical

More information

Wherever chemical solutions are involved, ph matters. Some

Wherever chemical solutions are involved, ph matters. Some 47 Acids, Bases, and the ph Scale R EA D I N G Wherever chemical solutions are involved, ph matters. Some important chemical reactions, such as those involved in corrosion of iron or digestion of food,

More information

Investigation of Geographical Origin and Production Method of L(+)-Tartaric Acid by Isotopic Analyses with Chemometrics

Investigation of Geographical Origin and Production Method of L(+)-Tartaric Acid by Isotopic Analyses with Chemometrics J. Chem. Chem. Eng. 11 (2017) 45-50 doi: 10.17265/1934-7375/2017.02.001 D DAVID PUBLISHING Investigation of Geographical Origin and Production Method of L(+)-Tartaric Acid by Isotopic Analyses with Chemometrics

More information

Section Objectives: Section Objectives: Distinguish mixtures and solutions. Define acids and bases and relate their importance to biological systems.

Section Objectives: Section Objectives: Distinguish mixtures and solutions. Define acids and bases and relate their importance to biological systems. Section Objectives: Relate the structure of an atom to the identity of elements. Relate the formation of covalent and ionic chemical bonds to the stability of atoms. Section Objectives: Distinguish mixtures

More information

NATURAL RADIOACTIVITY MEASUREMENTS APPLIED TO THE DATING AND AUTHENTICATION OF EDIBLE MEAT

NATURAL RADIOACTIVITY MEASUREMENTS APPLIED TO THE DATING AND AUTHENTICATION OF EDIBLE MEAT NATURAL RADIOACTIVITY MEASUREMENTS APPLIED TO THE DATING AND AUTHENTICATION OF EDIBLE MEAT Michael S. Pravikoff 1, Philippe Hubert 1 and Hervé Guégan 2 ABSTRACT The measurement of the ratio of 228 Th vs

More information

3M ESPE KETAC-CEM. Regulatory Data Sheet

3M ESPE KETAC-CEM. Regulatory Data Sheet Regulatory Data Sheet Copyright,2017, Company. All rights reserved. Copying and/or downloading of this information for the purpose of properly utilizing products is, and (2) neither the copy nor the original

More information

7510 3M ESPE VITREBOND GLASS IONOMER

7510 3M ESPE VITREBOND GLASS IONOMER Regulatory Data Sheet Copyright,2017, Company. All rights reserved. Copying and/or downloading of this information for the purpose of properly utilizing products is, and (2) neither the copy nor the original

More information

Detection of Adulteration in Honey using Optical Sensor

Detection of Adulteration in Honey using Optical Sensor Detection of in Honey using Optical Sensor R.Mercy Kingsta 1, M.Shamilee 2, S.Sarumathi 3 Assistant Professor, Dept. of ECE, Mepco Schlenk Engineering College, Sivakasi, Tamilnadu, India 1 UG Student,

More information

Forensic Applications of Isotope Ratio Mass Spectrometry

Forensic Applications of Isotope Ratio Mass Spectrometry An Executive Summary Forensic Applications of Isotope Ratio Mass Spectrometry By: Lesley A. hesson, President, IsoForensics Inc. Lesley A. hesson Introduction The isotopic profile or signature of a material

More information

Total Elemental Analysis of Food Samples for Routine and Research Laboratories, using the Thermo Scientific icap RQ ICP-MS

Total Elemental Analysis of Food Samples for Routine and Research Laboratories, using the Thermo Scientific icap RQ ICP-MS Total Elemental Analysis of Food Samples for Routine and Research Laboratories, using the Thermo Scientific icap RQ ICP-MS Tomoko Vincent 1, Simon Lofthouse 2, Daniel Kutscher 1 and Shona McSheehy Ducos

More information

MULTIVARIATE PATTERN RECOGNITION FOR CHEMOMETRICS. Richard Brereton

MULTIVARIATE PATTERN RECOGNITION FOR CHEMOMETRICS. Richard Brereton MULTIVARIATE PATTERN RECOGNITION FOR CHEMOMETRICS Richard Brereton r.g.brereton@bris.ac.uk Pattern Recognition Book Chemometrics for Pattern Recognition, Wiley, 2009 Pattern Recognition Pattern Recognition

More information

Rosemary extract liquid

Rosemary extract liquid EUROPEAN COMMISSION DIRECTORATE-GENERAL JOINT RESEARCH CENTRE Institute for Reference Materials and Measurements Community Reference Laboratory - Feed Additives Authorisation Evaluation Report of the Community

More information

Shaw High School Winter Break Enrichment Packet

Shaw High School Winter Break Enrichment Packet . Shaw High School Winter Break Enrichment Packet 1 Directions: Circle the letter of the correct answer. 1. The model shows water molecules interacting. The gray circles represent oxygen, and the white

More information

Biology of Humans: Concepts, Applications, and Issues, 6e (Goodenough) Chapter 2 Chemistry Comes to Life

Biology of Humans: Concepts, Applications, and Issues, 6e (Goodenough) Chapter 2 Chemistry Comes to Life Biology of Humans: Concepts, Applications, and Issues, 6e (Goodenough) Chapter 2 Chemistry Comes to Life 2.1 Multiple Choice Questions 1) A neutral atom must contain. A) an equal number of protons and

More information

LIFE OF CELL. Jhia Anjela D. Rivera 1,2 1. BS Biology Graduate, Department of Biology, College of Science, Polytechnic University of the Philippines 2

LIFE OF CELL. Jhia Anjela D. Rivera 1,2 1. BS Biology Graduate, Department of Biology, College of Science, Polytechnic University of the Philippines 2 LIFE OF CELL Jhia Anjela D. Rivera 1,2 1 BS Biology Graduate, Department of Biology, College of Science, Polytechnic University of the Philippines 2 MS Biology Student, Graduate School, Centro Escolar

More information

Food Specification Maps for European Mineral Water: an interactive demonstration of the TraceTool

Food Specification Maps for European Mineral Water: an interactive demonstration of the TraceTool 10 th FERA(CSL)/JIFSAN conference, Maryland 13-15 May 2009 Food Specification Maps for European Mineral Water: an interactive demonstration of the TraceTool Grishja van der Veer 1) and Stefan T. Höskuldsson

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A neutral atom must contain. A) an equal number of protons, neutrons, and electrons B) an equal

More information

Stable isotope. Relative atomic mass

Stable isotope. Relative atomic mass Stable isotope Relative atomic mass Mole fraction 106 Cd 105.906 460 0.012 45 108 Cd 107.904 183 0.008 88 110 Cd 109.903 007 0.124 70 111 Cd 110.904 183 0.127 95 112 Cd 111.902 763 0.241 09 113 Cd 112.904

More information

Choosing Fit-For-Purpose Food Safety Methods

Choosing Fit-For-Purpose Food Safety Methods Choosing Fit-For-Purpose Food Safety Methods Outline Method selection Screening & quantification methods Extraction, cleanup and chromatography Detection methods Method criteria validation Conclusions

More information

STOLLER ENTERPRISES, INC. World leader in crop nutrition

STOLLER ENTERPRISES, INC. World leader in crop nutrition A new paradigm for crop production - Page 1 of 6 A NEW PARADIGM FOR CROP PRODUCTION Most agronomists are taught about the chemical process of manufacturing photosynthates (PS). The plants breathe in carbon

More information

Emilie CARDONA. Liet CHIM. Pierre RICHARD. Claire GEFFROY. La Rochelle University. France ; Laboratory Coastal Environment and Society 1

Emilie CARDONA. Liet CHIM. Pierre RICHARD. Claire GEFFROY. La Rochelle University. France ; Laboratory Coastal Environment and Society 1 RESPECTIVE CONTRIBUTION OF THE ARTIFICIAL FEED AND NATURAL PRODUCTIVITY DETERMINED BY C AND N NATURAL STABLE ISOTOPES IN BIOFLOC EXPERIMENTAL REARING SYSTEM OF THE SHRIMP Litopenaeus stylirostris Emilie

More information

McPherson College Football Nutrition

McPherson College Football Nutrition McPherson College Football Nutrition McPherson College Football 10 RULES OF PROPER NUTRITION 1. CONSUME 5-6 MEALS EVERY DAY (3 SQUARE MEALS / 3 SNACKS). 2. EVERY MEAL YOU CONSUME SHOULD CONTAIN THE FOLLOWING:

More information

Prediction of Inverted Cane Sugar Adulteration of Honey by Fourier Transform Infrared Spectroscopy S. SIVAKESAVA AND J. IRUDAYARAJ

Prediction of Inverted Cane Sugar Adulteration of Honey by Fourier Transform Infrared Spectroscopy S. SIVAKESAVA AND J. IRUDAYARAJ JFS: Prediction of Inverted Cane Sugar Adulteration of Honey by Fourier Transform Infrared Spectroscopy S. SIVAKESAVA AND J. IRUDAYARAJ Fourier transform infrared (FTIR) spectroscopy with an attenuated

More information

APPLICATION OF MASS SPECTROMETRY IN BREWING SCIENCE

APPLICATION OF MASS SPECTROMETRY IN BREWING SCIENCE APPLICATION OF MASS SPECTROMETRY IN BREWING SCIENCE IZTOK JOŽE KOŠIR, MATJAŽ DEŽELAK, MIHA OCVIRK INŠTITUT ZA HMELJARSTVO IN PIVOVARSTVO SLOVENIJE MassTwin 2018, April 2018 OUTLINE Introduction Beer Beer

More information

The Chemistry of Life. Chapter 2

The Chemistry of Life. Chapter 2 The Chemistry of Life Chapter 2 Sec. 2-1 The Nature of Matter Atoms An atom is the basic unit of matter. Three subatomic particles make up atoms: protons (positive charge + ) neutrons (no charge) electrons

More information

DairyGuard: Augmenting Nutritional Testing of Milk Powder with Adulterant Screening

DairyGuard: Augmenting Nutritional Testing of Milk Powder with Adulterant Screening APPLICATION NOTE Near Infrared Spectroscopy Authors: Ben Perston Rob Packer PerkinElmer Inc. Shelton, CT DairyGuard: Augmenting Nutritional Testing of Milk Powder with Adulterant Screening Introduction

More information

Thermo Scientific HyperSep Dispersive SPE Products. Efficient sample preparation and clean-up using the QuEChERS Method

Thermo Scientific HyperSep Dispersive SPE Products. Efficient sample preparation and clean-up using the QuEChERS Method Thermo Scientific HyperSep Dispersive SPE Products Efficient sample preparation and clean-up using the QuEChERS Method The QuEChERS method overcomes the problems associated with time consuming, expensive

More information

NSW Higher School Certificate Senior Science 9.2 Lifestyle Chemistry

NSW Higher School Certificate Senior Science 9.2 Lifestyle Chemistry NSW Higher School Certificate Senior Science 9.2 Lifestyle Chemistry Section 2 Cleaning Products 9.2 Lifestyle Chemistry Section 2 ::: Cleaning Products 9.2.2 A wide range of cleaning products are made

More information

Food Quality and Chemistry of Natural Products

Food Quality and Chemistry of Natural Products Food Quality and Chemistry of Natural Products Organized by Mediterranean Agronomic Institute of Chania 1 Food Quality and Chemistry of Natural Products MAI coordinator: Dr. Panagiotis KEFALAS Aims: Objectives:

More information

Autenticity control, provenance testing and fraud detection using mass spectrometry

Autenticity control, provenance testing and fraud detection using mass spectrometry Autenticity control, provenance testing and fraud detection using mass spectrometry Abdal-Azim Al-Terkawi Ersan Özelci Melissa-Jane Monks Narendra Lagumaddepalli Venkatareddy Seyed Mohsen Jebreiil Khadem,

More information

Nuclear-physical methods for detecting pollutants and microelements in food

Nuclear-physical methods for detecting pollutants and microelements in food International Symposium on Food Safety and Quality: Applications of Nuclear and Related Techniques IAEA, Vienna, Austria, 10 13 November 2014 Nuclear-physical methods for detecting pollutants and microelements

More information

CICERO SCHOOL DISTRICT 99

CICERO SCHOOL DISTRICT 99 CICERO SCHOOL DISTRICT 99 Monday Tuesday Wednesday Thursday Friday September 3, September 4, September 5, September 6, September 7, NO SCHOOL Orange Juice CINNAMON TOAST CRUNCH ^ Graham Crackers ^ PANCAKES

More information

Behavioral and Structural Adaptations PPT Guided Notes

Behavioral and Structural Adaptations PPT Guided Notes A Essential Standard 2.1.2 Analyze how various organisms accomplish the following life functions through adaptations with particular environments and that these adaptations have evolved to ensure survival

More information

2.7 Isotope Analysis & Isotope Separation

2.7 Isotope Analysis & Isotope Separation 2.7 Isotope Analysis & Isotope Separation Isotope ratios for specific elements can change locally due to geological, climatological, biological, chemical and physical processes during the history of the

More information

CHAPTER 2. Life s Chemical Basis

CHAPTER 2. Life s Chemical Basis CHAPTER 2 Life s Chemical Basis The Chemistry of Life We are made up of elements. Atoms of one kind make up an element. Atoms are the smallest unit of an element still maintaing the element s properties.

More information

What happens during nuclear decay? During nuclear decay, atoms of one element can change into atoms of a different element altogether.

What happens during nuclear decay? During nuclear decay, atoms of one element can change into atoms of a different element altogether. When Henri Becquerel placed uranium salts on a photographic plate and then developed the plate, he found a foggy image. The image was caused by rays that had not been observed before. For his discovery

More information

Counterfeit and illegal pesticides: Strategies for addressing the issue in the analytical laboratory

Counterfeit and illegal pesticides: Strategies for addressing the issue in the analytical laboratory Counterfeit and illegal pesticides: Strategies for addressing the issue in the analytical laboratory Dr Helen Karasali Benaki Phytopathological Institute Head of the NATIONAL LABORATORY of Chemical Control

More information

Chapter 02. Lecture and Animation Outline

Chapter 02. Lecture and Animation Outline Chapter 02 Lecture and Animation Outline To run the animations you must be in Slideshow View. Use the buttons on the animation to play, pause, and turn audio/text on or off. Please Note: Once you have

More information

10.1 RADIOACTIVE DECAY

10.1 RADIOACTIVE DECAY 10.1 RADIOACTIVE DECAY When Henri Becquerel placed uranium salts on a photographic plate and then developed the plate, he found a foggy image. The image was caused by rays that had not been observed before.

More information

Overview. Introduction. André Schreiber 1 and Yun Yun Zou 1 1 AB SCIEX, Concord, Ontario, Canada

Overview. Introduction. André Schreiber 1 and Yun Yun Zou 1 1 AB SCIEX, Concord, Ontario, Canada LC-MS/MS Based Strategy for the Non-Targeted Screening of an Unlimited Number of Contaminants in Food Using the AB SCIEX TripleTOF 5600 System and Advanced Software Tools André Schreiber 1 and Yun Yun

More information

World Agricultural Outlook Board Interagency Commodity Estimates Committee Forecasts. Lockup Briefing April 10, 2013

World Agricultural Outlook Board Interagency Commodity Estimates Committee Forecasts. Lockup Briefing April 10, 2013 World Agricultural Outlook Board Interagency Commodity Estimates Committee Forecasts Lockup Briefing World Wheat Production Country or Region estimate 2012/13 previous month Million Tons Percent Percent

More information

Deoxynivalenol, sometimes called DON or vomitoxin,

Deoxynivalenol, sometimes called DON or vomitoxin, WHITAKER ET AL.: JOURNAL OF AOAC INTERNATIONAL VOL. 83, NO. 5, 000 185 SPECIAL GUEST EDITOR SECTION Sampling, Sample Preparation, and Analytical Variability Associated with Testing Wheat for Deoxynivalenol

More information

Chemometrics. Chemometrics in Food and Beverage. Applications Overview. Abstract

Chemometrics. Chemometrics in Food and Beverage. Applications Overview. Abstract 15-1214 Chemometrics Applications Overview Chemometrics in Food and Beverage Abstract Scientists in the food and beverage industry are faced with many different quality control tasks, such as making sure

More information

NaturalFacts. Introducing our team. New product announcements, specials and information from New Roots Herbal. April 2009

NaturalFacts. Introducing our team. New product announcements, specials and information from New Roots Herbal. April 2009 NaturalFacts New product announcements, specials and information from New Roots Herbal April 2009 Introducing our team Introducing Our Science Team Dr. ABZAL HOSSAIN Ph.D. Analytical Chemistry Dr. Hossain

More information

7.2: Natural Selection and Artificial Selection pg

7.2: Natural Selection and Artificial Selection pg 7.2: Natural Selection and Artificial Selection pg. 305-311 Key Terms: natural selection, selective pressure, fitness, artificial selection, biotechnology, and monoculture. Natural Selection is the process

More information

MedOOmics Mediterranean Extra Virgin Olive Oil Omics: profiling and fingerprinting

MedOOmics Mediterranean Extra Virgin Olive Oil Omics: profiling and fingerprinting RIMNet2 Mid-Term Project Evaluation Meeting 12 October 2017, Montpellier, France MedOOmics Mediterranean Extra Virgin Olive Oil Omics: profiling and fingerprinting Coordinator Maria João CBRIT Universidade

More information

Multivariate calibration

Multivariate calibration Multivariate calibration What is calibration? Problems with traditional calibration - selectivity - precision 35 - diagnosis Multivariate calibration - many signals - multivariate space How to do it? observed

More information

Transfer Factors of Radionuclides from Soil to Rice and Wheat Collected in Japan

Transfer Factors of Radionuclides from Soil to Rice and Wheat Collected in Japan Transfer Factors of Radionuclides from Soil to Rice and Wheat Collected in Japan S. UCHIDA 1 *, K. TAGAMI 1, I. HIRAI 2, M. KOMAMURA 3 Office of Biospheric Assessment for Waste Disposal, National Institute

More information

Nature of matter. Chemical bond is a force that joins atoms

Nature of matter. Chemical bond is a force that joins atoms Nature of matter Atom the smallest unit of matter that cannot be broken down by chemical means The subatomic particles of an atom consist of protons, neutrons and electrons Element is a pure substance

More information

Prof. Dr. Biljana Škrbić, Jelena Živančev

Prof. Dr. Biljana Škrbić, Jelena Živančev 5 th CEFSER Training Course Analysis of chemical contaminants in food and the environment Faculty of Technology, University of Novi Sad, Novi Sad, Republic of Serbia 7-11 May 2012 Analysis of heavy elements

More information

Classification of Malaysian honey using Fourier transform infrared spectroscopy and principal component analysis

Classification of Malaysian honey using Fourier transform infrared spectroscopy and principal component analysis 32, Issue 1 (2017) 13-18 Journal of Advanced Research Design Journal homepage: www.akademiabaru.com/ard.html ISSN: 2289-7984 Classification of Malaysian honey using Fourier transform infrared spectroscopy

More information

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Exam Name SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Figure 2.1 Using Figure 2.1, match the following: 1) Lipid. 2) Functional protein. 3) Nucleotide.

More information

ZAHID IQBAL WARRAICH

ZAHID IQBAL WARRAICH Q1 Chromatography is an important analytical technique in chemistry. There is a number of techniques under the general heading of chromatography. (a) Paper and gas chromatography rely on partition to separate

More information

MINISTRY OF EDUCATION, SCIENCE & TECHNOLOGY ANTIGUA AND BARBUDA 2015 GRADE SIX NATIONAL ASSESSMENT SCIENCE. J u ne 3,2015.

MINISTRY OF EDUCATION, SCIENCE & TECHNOLOGY ANTIGUA AND BARBUDA 2015 GRADE SIX NATIONAL ASSESSMENT SCIENCE. J u ne 3,2015. MINISTRY OF EDUCATION, SCIENCE & TECHNOLOGY ANTIGUA AND BARBUDA 2015 GRADE SIX NATIONAL ASSESSMENT SCIENCE J u ne 3,2015 80 Marks 1 Hour and 40 Minutes This paper contains four (4) sections: A, B, C, D

More information

Record your answers to Part A and Part B 1 on this answer sheet. Part A. Part A Score

Record your answers to Part A and Part B 1 on this answer sheet. Part A. Part A Score Tear Here The University of the State of New York REGENTS HIGH SCHOOL EXAMINATION LIVING ENVIRONMENT Wednesday, June 20, 2007 9:15 a.m. to 12:15 p.m., only ANSWER SHEET Female Student........................................

More information

Food Quality and Chemistry of Natural Products

Food Quality and Chemistry of Natural Products Food Quality and Chemistry of Natural Products Organized by Mediterranean Agronomic Institute of Chania 1 2 Food Quality and Chemistry of Natural Products MAI coordinator: Dr. Panagiotis KEFALAS Aims:

More information

SAMPLING LEVELS AND FREQUENCY

SAMPLING LEVELS AND FREQUENCY SAMPLING LEVELS AND FREQUENCY 1 The purpose of this document is to define the minimum number samples which must be taken in accordance with Council Directive 96/23/EC and Commission Decision 97/747/EC.

More information

Plant form and function. Photosynthesis Phloem Plant Nutrition

Plant form and function. Photosynthesis Phloem Plant Nutrition Plant form and function Photosynthesis Phloem Plant Nutrition Photosynthetic Water Use Efficiency Fundamental plant problem: Stomata: pathway for diffusion of CO 2 into leaves is the same as the pathway

More information

Food Defense During a Radiological Emergency

Food Defense During a Radiological Emergency Food Defense During a Radiological Emergency Stephanie Healey Winchester Engineering and Analytical Center Radiochemistry and Microbiology Section NUCLEAR ACCIDENT Outline FDA regulatory program for radionuclides

More information

1. Matter is anything that has mass and volume. 2. What is the difference between a physical change and a chemical change?

1. Matter is anything that has mass and volume. 2. What is the difference between a physical change and a chemical change? Name Chemistry: Matter, Water, Acids & Bases, and Macromolecules Study Guide This study guide is a good representation of what you will need to know for your test. You are responsible for completing the

More information

Prentice Hall. Chemistry: The Central Science, 11th Edition (Brown et. al) 2009 (SE: , AIE: ) Grades 11-12

Prentice Hall. Chemistry: The Central Science, 11th Edition (Brown et. al) 2009 (SE: , AIE: ) Grades 11-12 Prentice Hall Chemistry: The Central Science, 11th Edition (Brown et. al) 2009 (SE: 9780136018797, AIE: 9780136012504) Grades 11-12 C O R R E L A T E D T O Louisiana GLE s for Chemistry II - course 150402

More information

University of Leeds for Red Tractor Assurance. Stable Isotopes Project Report. Prepared by: Professor Simon Bottrell

University of Leeds for Red Tractor Assurance. Stable Isotopes Project Report. Prepared by: Professor Simon Bottrell University of Leeds for Red Tractor Assurance Stable Isotopes Project Report Prepared by: Professor Simon Bottrell Stable Isotopes and Food Provenance Assurance A critical appraisal of the application

More information

Safety: Do not eat the radioactive candium until it has decayed into a safer element.

Safety: Do not eat the radioactive candium until it has decayed into a safer element. Name: Date: Period: CHEMISTRY LAB #23 Radioactive Candium Experiment 90 MINUTES Do Now Review: 1) How long will it take for 20 g of 222 Rn to decay to 5 g? 2) How many half-lives is this? 3) What type

More information

Chapter 2 1. Using an annotated diagram, describe the structure of a plant cell. (12 marks)

Chapter 2 1. Using an annotated diagram, describe the structure of a plant cell. (12 marks) Essays Chapter 2 1. Using an annotated diagram, describe the structure of a plant cell. 2. Compare and contrast the structure of prokaryotic cells and eukaryotic cells. 3. Describe the correct procedures

More information

Biology Chapter 2 The Chemistry of Life Mr. Hines

Biology Chapter 2 The Chemistry of Life Mr. Hines Biology Chapter 2 The Chemistry of Life Mr. Hines Chapter 2.1 The nature of Matter Learning Target 1 List and describe the four things in the universe and their relationship 2 Explain what matter is. 3

More information

SAMUELI CHARTER SCHOOL

SAMUELI CHARTER SCHOOL SAMUELI CHARTER SCHOOL Monday Tuesday Wednesday Thursday Friday February 25, February 26, February 27, February 28, March 1, FROSTED CORN FLAKES ^ WG Graham Crackers ^ March 4, March 5, March 6, March

More information