updates of halal products · pdf fileupdates of halal products ... issues in halal industry...
TRANSCRIPT
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UPDATES OF HALAL PRODUCTS AUTHENTICATION
YAAKOB B. CHE MAN & SHUHAIMI B. MUSTAFA
Halal Products Research Institute
Universiti Putra Malaysia
World Halal Research Summit 2010 ‘Inspiring Innovation Through Research’, 23 – 25 June 2010, Kuala Lumpur, Malaysia
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Presentation Outlines
Background
Halal Authentication and Certification
Global Challenges to Halal Analysis
Updates of R & D on Analytical Methods for Halal Products Authentication
Concluding Remarks
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Background
Halal from 2 perspectives :
Islamic perspective – Halal act and consumption is an obligation to every Muslim. The opposite is haram which is prohibited activity
Industry perspective – ‘Halalan Thoyyiban’ concept provides good business opportunities for everyone, Muslims or non-Muslims alike
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Islamic Perspective
Halal is a Qur’anic term meaning ‘permitted, allowed or lawful’. Halal when used in relation to food and other consumer goods means ‘permissible for consumption and used by Muslims’
Haram is the opposite of halal.
Shubhah or Mashbooh, means doubtful or suspected
Halal and haram are serious matters in Islam
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Halal – permissible based on shariah rulings
(religious, faith and spiritual)
Thoyyib – Good or Wholesome (quality, safety,
hygeinic, clean, nutritious, quality, authentic -
scientific))
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Cont..
In the selection of food and drink, and other consumer products, Islam has laid down 3 very important guidelines:
• Whether the consumption of the products are halal(permitted) or haram (prohibited) by Allah S.W.T.
• Whether or not the materials are good and safe to be consumed or used by mankind (thoyyib)
• Whether the products are obtained through halal or haram means (e.g. source of finance)
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Halal Industry Perspectives
Halal food, pharmaceutical, health products , medical
devices, toiletaries and cosmetics worth USD 2.1
trillion worldwide.
Lucrative industry and huge opportunities for halal
business - domestic and international trade
Demand for halal food and other Islamic consumer
goods is increasing
Currently, ~1.8 – 2.0 billion Muslims
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Organization of Islamic Countries (OIC)
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10
520
540
560
580
600
620
640
660
680
700
2004 2005 2009 2010 2012e 2015e
U
S
D
Global Halal Food Market
Global Halal Food Market
Expon. (Global Halal Food Market)
Size of Global Halal Food Market (2004) : USD 587.2 billion
Growth : 1.5% per annum
Market size by 2010 : USD 641.5 billion
The size of the Global Halal Food Market is projected
at more than USD 640 billion in 2010
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11
Non-Food (US$ 1.52
trillion)
Food(US$ 0.58 trillion)
Services (US$ 1.0 trillion) Non-food Services Food
Source : Third Industrial Master Plan
Global Halal Market 2005 ~ US$3.1 trillion/year
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FMCG sector
Nutraceutical
ConfectioneryCosmetics & personal care
Bakery products
Processed food*** & beverages****
Primary meat
Global market for potentially Halal products, 2005** Percent
• Approximately 67% of potentially Halal products are categorized as fast moving consumer goods (FMCG)
• “Potentially halal” market has been quantified as the target market that can potentially be captured
• Food FMCG and primary meat together account for62% of the market
Pharmaceutical
MARKET FOR HALAL PRODUCTS
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Cont…
Food industry globally are looking at the ‘ ’
concept as a new tool for marketing
To tap this lucrative market, the industry must
understand and appreciate the religious and scientific
basis of halal requirement
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Issues in Halal Industry
• Halal concept is simple; however, the industry isbecoming more complex and sometimes confusing
• Due to breathtaking technological development todayand the diversification of sources acquired globally forconsumer products processing andproduction, numerous number of processed productsare available in the market
• It is very challenging and increasingly difficult forMuslims to ensure the halal status of products in themarket
• This trend has raised concerns among Muslimconsumers regarding new processed food andconsumer products
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Halal Food Suppy Chain ‘From Farm to Plate’ Concept
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Food Adulteration
Adulteration is an issue of major concern in thefood, cosmetics and pharmaceutical trade andindustries globally
Adulteration involving the replacement of high costingredients with lower grade and cheaper substitutes isa common phenomena in many these industries.
Adulteration of food products can be very attractive andlucrative for food manufacturers or raw materialsuppliers, e.g. recent melamine adulteration issue inbaby foods
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Porcine-based Products Ingredients
Pork is commonly found in many food products
Lard could be effectively blended with other vegetableoils to produce shortening, margarines and otherspecialty food oils
In some countries, food manufacturers choose to blendvegetable fats with lard to reduce production cost
In other instances, adulteration with porcine productscould be unintentional, e.g. use of emulsifiers such asE-471 or mono- and diglyceride from lard
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PRODUCTSPharmaceutical and
Medical Products.Food products Other Products
•Capsules
•Tablets and pastilles
•Micro-encapsulation
•Suppository
•Gelatine sponge
•Surgical powder
•Gelatine dressing
•Plasma substitute
•Animal shortening
•Calcium stearate
•Gelatine
•Lard
•Pancreatin (pancreatic
extract)
•Pepsin
•Sodium stearoyl lactylate
•Brushes
•Leather product
•Shoes and sports shoes
•Jackets
•Wallets
•Sling bags
•Handbags
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Examples of Haram Ingredients in
Cosmetics
Placenta from human and animals
Lard
Gelatin and collagen (from pork or animal - not
slaughtered according to Shariah law)
Emulsifiers (from lard or animal fat - not
slaughtered according to Shariah law)
Enzymes (from non-halal sources)
Hazardous chemicals/ingredients
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Halal Authentication & Certification
Food (or any other products) is only halal if the entire valuechain, from farm to plate, is processed, handled and stored inaccordance to Shariah or Halal Standards and Guidelines
E.g - Malaysia Standard MS1500:2004 Halal Food: Preparation, Handling, Packaging and Storage - General Guidelines
Malaysian Standard MS 2200:2008 Islamic Consumer Goods Part 1: Cosmetic and Personal Care Products - General Guidelines
Codex Alimentarious – Codex General Guidelines for Use of the Term Halal (CAC GL-24/1997) – Secretariat of the Joint FAO/WHO Food Standard Programme originally based on JAKIM’s Guidelines
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Halal Standards in Malaysia
MS 1500:2004 HALAL FOOD –PRODUCTION, PREPARATION, HANDLING AND
STORAGE –GENERAL GUIDELINES (FIRST REVISION)
MS 1900:2005 QUALITY MANAGEMENT SYSTEMS - REQUIREMENTS FROM ISLAMIC
PERSPECTIVES
MS 2200:2008 ISLAMIC CONSUMER GOODS - PART 1: COSMETIC AND PERSONAL
CARE - GENERAL GUIDELINES
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Application/Document Approval/Fee
Premise Inspection /Audit /Sample
Report Writing
Panel Committee
Issuance of Halal Certificate
Monitoring and Enforcement /Sample
HALAL CERTIFICATION PROCESS IN
MALAYSIA
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Global Challenges to Halal
Analysis
More stringent monitoring system is needed by
Halal Authorities.
Analytical techniques become a major challenge
for authentication of halal products
Reliable state-of-the-art scientific methods are
required for analysis of non-halal components
(e.g porcine origin) in halal products
Competent scientists and scientific methods are
needed
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Cont…
Analysis should be able to reliably identify origin
of food components
Sensitive and robust enough to be applied to
complex food/products matrices
Analysis based on certain identified biomarkers
- oil/fat-based
- protein-based
- DNA-based
- metabolites-based
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Updates of R & D on Analytical
Methods for Halal Products
Authentication
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Food samples Issue Detection
limit of
adulterant
References
Cake formulation Lard adulteration in
shortening
4% (w/w) level Syahariza et al. (2005)
Chocolate Lard addition 3% (w/w) level Che Man et al. (2005)
Biscuits Lard adulteration 4% (w/w) level Syahariza (2006)
Edible oil Lard characterization NR Guillen and Cabo (1997)
Meat Lard mixed with other
meat
NR Che Man et al. (2001)
Meat Pork identification NR Al-Jowder et al. (1997)
Animal Fats
Cod liver oil
Gelatin
Vegetable oils
Lard mixture
Lard adulteration
Differentiation of bovine
and porcine
Lard adulteration
1% (w/w) level
NR
NR
1 %
Jaswir et al. (2003);
Rohman and Che Man
(2010)
Rohman and Che Man
(2009)
Hashim et al. (2010)
FTIR Spectroscopy
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Liquid Chomatography
Methods Food
samples
Issue Detection
limit of
adulterant
References
HPLC
LC-MS
Meat products Detection of pork
and lard
1% in beef,
3% in mutton
Saeed et al., 1989
Meat products Detection of lard 5% Rashood et al.,
1995
Meat Detection of meat
adulteration
10% meat Wissiack et al.,
2003
Edible oil
Gelatine
Animal fats
Contamination of
lard
Differentiation of
gelatine sources
Lard presence
NR
NR
NR
Marikkar et al.,
2005
Norakasha et al.
(2009)
Dugo et al 2006
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GC-FID Lard Animal fats
(tallow and
buffalo)
10% (in buffalo,
5% in tallow)
Farag et al.(1983
Vegetable oils 2% (w/w) lard Marikkar et al.
(2005)
GC-MS Pork Cooked meat NR Wittasinghe et al.
(2001)
GCxGC-MS-
TOF
Lard Animal fats NR Chin et al. (2009)
Animal fats NR Indrasti et al.
(2010)
Methods Issue Food samples Detection limit of
adulterant
References
Gas Chromatography
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Electronic Nose
Food samples Issue Detection limit
of adulterant
References
Edible oil
Meat
Edible oil (VCO)
Detection of lard
Detection of pork
Detection of
adulteration
1%
1%
NR
Che Man et al. (2005)
Juliana et al. (2010)
Marina et al. (2010)
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Differential Scanning Calorimetry (DSC)
Food
samples
Issue Detection limit of
adulterant
References
Ghee, butter Adulteration of goat body fat 10% (w/w) level Lambelet, 1983
Adulteration of cow and buffalo
ghee by pig
10% (w/w) level Lambelet et al.,
1980
Detection of lard and
randomized lard in RBD palm
oil
10% (w/w) level Kowalski, 1989
Edible oil Detection of lard and
randomized lard in RBD palm
oil
10% (w/w) level Marrikar et al.,
2001
Adulteration of RBD palm oil
with lipase catalyzed
interesterified lard (ERLD)
10% (w/w) level Marrikar et al.,
2002
Detection of lard in selected
food product deep fried in lard
10% (w/w) level Marrikar et al.,
2003
Sunflower oil
Monitoring lard, tallow and
chicken fat adulteration in
Canola oil
Lard adulteration
10% (w/w) level
NR
Marrikar et al.,
2002
Marrikar et al.,
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DNA Based Methods
Food
samples
Issue Detection limit
of adulterant
References
Food
products
Pork identification NR Che Man et al., 2007
Meat Detection of pork and lard (qualitative) Aida et al., 2005
Detection of pig derivatives Aida et al., 2007
Pork adulteration 0.001 ng Che Man et al.
(2008) Patent
Characterization of porcine
muscle protein
10g/kg Chen et al., 1998
Detection of pork meat NR Montiel-Sosa et al.,
2000
Meat Detection of pork
Pork adulteration
Pork adulteration
NR
0.0001ng
NR
Fadila et al (2010)
Che Man et.al (2010)
Patent
Murugaiah et al.
(2009)NR = not reported
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Enzyme-linked Immunosorbent Assay (ELISA)
Food
samples
Issue Detection limit
of adulterant
References
Meat
products
Raw ground
beef
Detection of pork
pork adulteration
NR
1 %
Ayob et al., 1989
Martin et al.,
1998
Meat and
feed
products
Pork quantification 0,5 – 0,05 % Chen and Hsieh,
2000
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HALAL PRODUCTS
RESEARCH INSTITUTE
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Development of Analytical Techniques
for Halal Products Analysis in HPRI
• Molecular Biology techniques (DNA, ELISA)
• Fourier Transform Infrared (FTIR) spectroscopy
• Electronic Nose (E-nose) technology
• Differential Scanning Calorimetry (DSC)
• Chromatography (e.g. GC-FID, GC-ToF-MS,
HPLC, GCMS)
• Biopotential Telemetry EEG & ECG
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Molecular Biology Techniques
(i) DNA-based technique
• DNA technique is a favorite approach for species
identification because DNA is relatively stable even
after processing
• We develop method for species identification from
pork samples using conventional and RT-PCR
analysis
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Conventional PCR
RFLP Species Specific
Conventional PCR
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M A1 A2 A3 D1 D2 D3 K1 K2 P1 P2
228 bp
131 bp
500 bp
≈360 bp
Restriction Enzyme Analysis of PCR Amplified
Cytochrome b Gene (sausages) (Che Man, et al 2005)
M-1Kb DNA ladder
A1, A2 and A3- chicken sausages of different brands
D1, D2 and D3- beef sausages of different brands
K1 and K2- pork sausages of different brands
P1 and P2- unknown products
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Real-time PCR
Real-time PCR
Molecular BeaconTaqMan Probe
*UPM Patent
SYBR Green
*UPM Patent
** Commercialised
Products - HaFYS™
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40
BRIEF DESCRIPTION OF TECHNOLOGY
(Description of Process)
Total DNA Extraction
Primers and probe
Design
Real-time PCR
Specificity Test Sensitivity Test
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SYBR Green Assay
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Specificity test on pork primer designed against
other meat species (beef and chicken).
Real-time PCR
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Sensitivity test of pork primer with 10-fold serial dilutions
Detection - 0.001ng of pork DNA. This is an essential discovery in
terms of Halal identification of food products
Real-time PCR
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TaqMan Assay
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Specificity of the assay
Amplification plot of porcine-specific TaqMan real time PCR assay on different
raw meat species. Note that only porcine DNA give rise to positive amplification
resembled by the increased of fluorescence intensity. Assay cross-tested
against non-targeted meat species show no amplification which confirmed the
specificity conferred by the recent developed assay
Amplification of
Porcine DNA
DNA of meat species
other than porcine
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Sensitivity of the assay
Amplification plot of porcine-specific TaqMan real time PCR assay on a serial 1:10 diluted
porcine DNA. It is showed that the ability of the assay to detect as low as 0.0001 ng
porcine DNA in water. The high sensitive assay is important as a minute amount of pork in
food products is prohibited for Muslim
0.0001ng/µL
porcine DNA
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Real-Time PCR Halal Testing
Methods
• The methods developed have the potential to be used
for Halal authentication process.
• The methods were highly sensitive and detected the
presence of 0.001ng (SYBR Green) and 0.0001ng
(TaqMan) of pork template DNA when assessed using
dilutions of DNA in water.
• These dedicated Real-Time PCR Halal Testing
Methods developed which are rapid, specific and
cheap offer huge market potential.
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About the HaFYS™ Technology
The components of the system are:
1. Portable real-time PCR analyzer
2. Disposable Test module (lyophilized PCR reagents)
3. DNA extraction kit (optional)
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HaFYS™ - Portable PCR
• Analyzer
– Fully automated system for rapid DNA & RNA analyses
– Sample preparation included
– Simple one touch operation
– Light weight and field deployable
• Test Module
– Pocket-sized, sealed cartridge (biohazard friendly)
– Months to years storability at ambient temperatures
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Advantages of the HaFYS™ Technology
1. Rapid (< I hour) and capable of multiplexing (optional)
2. Portable (“Go Anywhere” - in the field or in the lab)
3. Easy to operate by unskilled operators
4. Direct (w/o DNA extraction)/indirect (with DNA extraction) PCR testing
5. Relatively cheap – affordable
6. Reliable for animal speciation
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Typical Real-Time PCR and
HaFYS™ PCR
With HaFYS™ : A Simplified Procedure
Taking About 1 Hour and Doable Anywhere, Indoors or Outdoors
Sample Transport
Preservative Temp Time
Media Container etc.
Specimen Collection
Mucous Swab Serum
Plasma Blood CSF
Tissues Etc.
Nucleic Acid Extraction
DNA RNA
Sample Source.
Target Amplification
40-cycles
Thermocycling Process
Target Detection
Real-time PCR or Gel
Insert Sample in Module
Go Anywhere PCR Lab
Target Detection
Real-time PCR
Reportable Results
4-48 hours 30-90 minutes 45-120 minutes 5 or 120 minutes
Less than 30 minutes
RT-PCR
RNA viruses
30 min
Stool and Plant
protocols under
development
Previously: A Complicated and Tedious ProcedureTaking 6-54 hours, Performed only in Special Laboratories
1 Hour or Less
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Making the Complex Simple
•HaFYS™ Simplicity
− Collect Sample
− Place in Test Module
− Insert into Analyzer
− One Button to Start
− Yes/No Results
− Easy, Fast, Anywhere
• Usual PCR = Many Steps = Hours to Days
Take Sample Transport Prep Sample PCR Results
One Step, One Button, ~ One Hour
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Red line: Internal control; blue line: beef
sample (Negative Result)
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Red line: Internal control; blue line:
Cat food containing pork (Positive Result)
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Red line: Internal control; blue line: no-
template control
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Unprecedented PCR Technology
• Automatic Sample Preparation
• Ruggedized Design (few moving parts)
• Portable
• Fully Automated Operation
• Self-Contained Test Module
• Novel Optical Detection
• Rapid Results
• Remote Communications -- Optional
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Launching of HaFYS™
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FTIR SPECTROSCOPY
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Fourier Transform Infrared (FTIR)
Spectroscopy
FTIR spectroscopy provides a highly effective choice.
It is a fast and non-destructive technique, sensitive,and free of chemical preparation
FTIR gives a valuable information about the presenceof molecular bonds or functional groups
Using computer and its advance chemometricssoftware, FTIR can be easily manipulated the spectralinformation
FTIR has been used for analysis of lard in mixed withbody fats of lamb, cow, and chicken; lard in cake andchocolate formulations as well as in cream cosmeticsformulations; diffrentiation of gelatin sources etc
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FTIR SPECTRA OF LARD AND OTHER OILS
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3007,1 cm-1 unsaturated CH
2922 cm-1 CH2 stretching
2852,7 cm-1CH3 stretching
1743 cm-1 carbonyl group (-C=O)
1465 cm-1 CH2bending
1377,7 cm-1 CH3bending
1160,7 cm-1 overlapping CH2
1117,3 and 1097 cm-1 oleic acid group
962 cm-1 bending vibration of cis olefinic disubstituted
721,7 cm-1 overlapping CH2
Peak identifications
Sources: Pavia et al (2001); Guillen and Cabo (1997)
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PCA OF LARD AND OTHER OILS
1 = lard; 2 = beef fat; 3 = chicken fat; 4 = mutton fat; 5 = cod liver oil; 6 = canola
oil; 7 = corn oil; 8 = extra virgin olive oil; 9 grape seed oil; 10 = palm oil; 11 =
pumpkin seed oil; 12 = rice bran oil; 13 = sesame oil; 14 = soybean oil; 15 =
walnut oil; 16 = sunflower oil; 17 = virgin coconut oil
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CLUSTER ANALYSIS OF LARD AND
OTHER OILS
1 = lard; 2 = beef fat; 3 = chicken fat; 4 = mutton fat; 5 = cod liver oil; 6 = canola
oil; 7 = corn oil; 8 = extra virgin olive oil; 9 grape seed oil; 10 = palm oil; 11 =
pumpkin seed oil; 12 = rice bran oil; 13 = sesame oil; 14 = soybean oil; 15 =
walnut oil; 16 = sunflower oil; 17 = virgin coconut oil
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Discriminant analysis of lard in mixture with body fats of lamb, cow, and chicken (Che Man, 2009)
lard in mixture with LBF
lard in mixture with Cow-BF
lard in mixture with Ch-BF
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Differentiation of Gelatins (Hashim et al, 2010)
12
43
.6
13
38
.9
14
55
.9
15
62
.2
16
33
.8
12
43
.8
13
38
.2
14
55
.8
15
56
.9
16
33
.9
-0.2
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
1100 1200 1300 1400 1500 1600 1700 1800
(1)
(2)
Component peak location of FTIR for average of three spectra of
bovine gelatins (1) and average of three spectra of porcine gelatins (2).
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Cooman’s plot for two classes of gelatin: porcine gelatin
and bovine gelatin.
Discriminant Analysis Plot for FTIR Analysis of Gelatin
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Cont…
• FTIR technique combined with chemometric
analysis was able to detect and quantify the
level of lard adulterated in food samples
• Fast and non- destructive technique, and free
of chemical preparation
• Offers rapid (results in 2 min), simple, accurate,
reliable, and environmental friendly technique
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Electronic Nose
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Raw /
Processed
meats sample
Electronic nose
analysis
Principle
component
analysis
(Data
interpretation)
Array of electronic chemical sensors
+
Appropriate pattern recognition system
Recognizing odors
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SAW detector response vs time. Pure RBD palm olein (pink)
overlay with RBD palm olein adulterated with 5% lard (black)
(Che Man et al, 2005)
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Pork BeefChicken Mutton
Typical chromatograms of four different types of meat.
Pork showed more aromatic compound corresponding
to the number of peaks.
VaporPrintTM
Rapid Detection of Haram Meat (pork)
by Electronic Nose
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CORN OIL PEANUT OIL PALM OLEIN
SESAME OIL LARDCOCONUT OIL
VaporPrint TM
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Statistical analysis (PCA)
The different meat samples were separated along the first PC described 86%
of the peak variation and showed four defined groups: beef and mutton with
high positive scores; chicken meat with low positive score; and pork with high
negative scores along PC1.
PORK
MUTTON
CHICKEN
BEEF
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Cont…
E-nose is an interesting alternative choice which
offers easier operation, rapid determination (1
min), and give reliable results
It is possible to detect any adulteration with the
characteristic aroma fingerprint of each sample
(1% detection level)
This electronic nose could fulfil the need for rapid
detection of lard adulteration in food
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Differential Scanning Calorimetry
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Differential Scanning
Calorimetry
• Thermoanalytical technique for monitoring
changes in physical or chemical properties of
material by detecting heat changes
• Thermogram profile show the presence of lard
in food sample
• Relatively simple, accurate and minimum
amount of sample needed
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A(GLD)
B(CRLD)
C(BT)
D(MT)
E(CF)
A(0%)
B(1%)
C(2%)
D(3%)
E(4%)
DSC cooling thermogram of
different animal fatsDSC cooling thermogram of RBDPO
adulterated with genuine lard
(increasing proportion)
DSC Thermogram
Source: J.M.N. Marikkar et al. Food Chemistry, 76 (2002) 249–258
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ALD
AO
O
LARD PROFILE (Marikkar et al. 2001)
ALD PROFILE (Sample Pre-Fried In Lard)
AOO PROFILE (Sample Pre-Fried In Palm
Olein)
Commercial Samples Profile
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(ii) Protein-based technique
• ELISA is used to determine the level of antibodies in a sample and useful because they are specific and are relatively simple to perform.
• We developed method for detection of pig derivatives qualitatively in the food samples using ELISA technique
• The analysis yielded excellent results for detection of pig derivatives in samples
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1 2 3 4 5
A
B
C
D
E
F
G
H
ELISA Results
A1- positive control;
B1 and C1- negative controls;
D1- mutton,
E1- beef;
F1- chicken meat,
G1, H1, A2 and B2-pork;
C2- mutton fat;
D2- beef fat;
E2- chicken fat;
F2, G2, H2, A3- lard;
B3, C3 and D3- chicken
sausages with different
brands;
E3, F3 and G3- beef
sausages with different
brands;
H3 and A4- pork
sausages with different
brands;
B4 and C4- unknown
sausages;
D4, E4 and F4-
unknown casings;
G4, H4, A5 and B5-
bread with different
brands;
C5 and D5- biscuits
with different
brands; E5-
homemade biscuit
with 1% lard;
F5- homemade
biscuit with 50%
lard;
G5- homemade
biscuits with 100%
lard.
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Chromatography (GC)
High Performance liquid chromatography (HPLC)
Gas chromatography (GC)
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GC-ToF-MS
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Cow
Sheep
Chicken
Pig
Animal FAME – GC-FID
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Animal FAME - 2D (GC x GC)
Pig
Sheep
Cow
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22
23 26
2524 30
28
27
29
31
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Lard FAME profiles and other animal fats
by GC×GC-TOF-MS
Formula FAME compoundComposition (%)
LA CA CF GF
C18:3 n3t
Methyl trans-
9,12,15-
octadecatrienoate
6.754 4.684nd nd nd
C20:3 n3tMethyl 11,14,17-
eicosatrienoate0.116 0.127 nd nd nd
C20:2 n6Methyl 11,14-
eicosadienoate0.268 0.030 nd nd nd
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Conclusions Halal and haram issues are serious matters for Muslims
but also provide good business opportunities for everyone
Properly processed and halal certified consumer products
are pertinent to capture the lucrative global halal market
R & D and application of new methods for halal analysis
and authentication is much needed to uphold the
credibility of halal certification programs
It is hoped that scientific advances on analytical
techniques on halal products authentication would
contribute to the integrity of Halal certification and further
supporting halal trade and industry
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Acknowledgements
To all staff in HPRI, Universiti Putra Malaysia
Especially to our students & research officers Abdul Rohman
Dias
Akasha
Juliana
Aida
Farihah
Fadhilah
Salwani
Salehan
Nazrim
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