origin determination via other methods · 1. food safety incident 2. food residue surveillance...

© 2008 FoodReg AG – All rights reserved© 2007 FoodReg – All rights reserved Confidential

Other Origin Determination Methods

CHAI CHEUN KUANSelamat Traceability Workshop

12 & 13 May 2008

© 2008 FoodReg AG – All rights reserved

total traceability

Contents1. Functional roles of Traceability

2. IT in traceability system

3. Fundamentals of Traceability

4. Other methods of Traceability

• Introduction

• Principle

• Applications


total traceability

Functional Roles of Traceability

1. Food safety incident

2. Food residue surveillance programme

3. Risk Assessment from food exposure

4. Enforcement of labelling claims

5. Fraud

6. Food wastage

7. Hygiene Identified by: UK Food AgencyIdentified by: UK Food Agency


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IT in Advance Traceability System

Database


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Traceability System ‐ Fundamentals

1. Unique identification of a product (or batch)

2. Collection of accurate information (records) throughout its production processes

3. Information management and data recoverability


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Unique Identification


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External Identifier

GS1)

RFID Label

RG CodeID Tag

Laser Surface Scanning


total traceability

Laser Surface Scanning

1. Introduction

2. General Principle

3. Applications


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Introduction – Laser surface Scanning

a) Presence of individual “fingerprint” of an object in nature

b) Laser scanning takes place on the designated surface of an object and record the naturally random microscopic surface structure / pattern

“Fingerprint” of an object = microscopic pattern


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a) Verify wide range of materials such as paper, plastic, metal and even ceramic etc

b) Common material used in food packaging, documents or ID tags

Introduction – Laser surface Scanning


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General Principle

Pattern registrationSearch and compare

Yes. Original object

Object surface(Packaging)

Microscopic Structure


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Applications

a) Packaging

b) ID Tags

c) Certificates

d) Documents (Delivery notes & Invoices)


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Biometric Identifier

Retinal Scanning Nose Printing

DNA Profiling


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DNA Method

1. Introduction

2. General Principle

3. Applications


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Introduction – DNA Method

Francis Crick James Watson


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Introduction ‐ DNAa) Deoxyribonucleic acid = DNA

b) Database of living organism and some viruses which contains genetic information

c) It is a double helix complementary structure molecule


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Introduction ‐ Basic Unit of DNA


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Introduction ‐ Double Helix Structure


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General Principle

a) DNA Extraction

b) Polymerase Chain Reaction (DNA

Marker)

c) Gel Electrophoresis


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Polymerase Chain Reaction (PCR)a) A molecular biology technique.

Polymerase is an enzyme which perform replication and transcription works

b) DNA present in small amount. This technique is used to produce (amplify) many copies of DNA

c) PCR is a repeating process of:(Denature ‐> Anneal ‐> extension)n


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Polymerase Chain Reaction (PCR)

Enzyme (Polymerase) DNA marker PCR in progress


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Gel Electrophoresisa) A technique to separate the DNA,

ribonucleic acid (RNA), or protein molecules by using an electric current applied to a gel matrix

b) DNA is negative‐charged due to the sugar‐phosphate backbone. So it migrates from negative to positive electrodes through the gel matrix.


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Gel Electrophoresisc) Therefore a larger molecules migrate

slower than small molecules


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Application 1

Search and compare

DNA profile storing

Backward traceSample


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Availability of DNA Marker

a) Catfish

b) Penaeid shrimps

c) Common carp

d) Salmon

e) Trout…… etc


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Application 2


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Summary

a)Progressive development of new method to

improve traceability and authenticity

b)Information technology plays an important role in

data storage and management

total traceability


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63000 Cyberjaya, Selangor, MalaysiaTel: 603‐8318 4113Fax: 603‐8319 6113