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THE USE OF BIOSENSORS IN
FOOD INDUSTRY
W.A.G.E.Wijelath
AG/12/FT/024
Department of Food Science and Technology,
Faculty of agriculture,
University of Peradeniya.
.
BFST-2102 SEMINAR IN FOOD SCIENCE AND TECHNOLOGY
Content
1.What is a biosensor
2.History of biosensors
3.Principle of the biosensor
4.The biosensor system
5.Classification of biosensor
6.Typical biosensor system
7.Applications in Food Industry
8.Features of biosensors used in the food industry
9.Trending Biosensors
10.Biosensors in Dairy Industry
11.Biosensors for pathogen detection
12.Biosensors in Nano Scale 2
What Is a Biosensor ?
Definition:
Self-contained integrated device that is capable
of providing specific qualitative or semi
qualitative analytical information using
a biological recognition element which is in
direct spatial contact with a transduction
element. (IUPAC,1998)
3
History of Biosensors
4
Father of biosensors, Leyland C. Clark invented
the clark oxygen electrode, a pivotal device that
allows real-time monitoring of patient’s blood
oxygen levels and has made surgery safer and
more successful for millions around the world.
The Principal of Biosensors
• It is a sensing device comprised of a
specific biological element and a transducer.
• A “specific biological element” called
bio-receptor recognizes a specific analyte
and changes in the biomolecule are usually
converted into an electrical signal by a
transducer.
5
The Biosensor System
6
The Biosensor System: Bioreceptor
• A biologically derived material that interacts
(binds or recognizes) the analyte.
• Types:
Nucleic acid
Enzyme
Antibody
Microorganism 7
The Biosensor System: Transducer
• A transducer is a device that converts one
type of energy to another.
8
Classification of biosensors
9
A Typical Biosensor
10
Applications in Food Industry
• Detection of heavy metals
• Detection of residual agrochemicals
• Detection of toxic metabolites
• Food borne pathogen detection
• Assure food safety
• As indicators of product acceptability
• Detection of unpermitted chemicals
• Sensory analysis 11
Features of biosensors used in the
food industry
• Target specificity
• Electronic integration
• Small size
• Fast response time
• Stability
• Mass producible
• Continuous signal 12
Trending Biosensors
E- nose
•Detection of odd volatile compounds
•Application in Tea, Wine, Coffee and
spices industry
E- Tongue
•A colorimetric sensor array is used
•Application in liquid food industry 13
Biosensors in Dairy Industry
• DNA testing of the cows
• Pathogen testing in the milk
• Micro-organism identification in the milk
• Test for preservation and pasteurization
14
Biosensors for pathogen detection
15
Biosensors in Nano Scale
• Embedded in food packages
• NEMS
• Integrated in e- noses
16
Summary
• Biosensors are based on use of biological
material as the sensing element which
reacts or interacts with the analyte
resulting in a detectable chemical or
physical change.
• The inherent specificity, sensitivity and
adaptability make them ideal candidate for
use throughout the food industry.
17
References
1) Murugaboopathi G., Parthasarathy V.,
Chellaram C., Anand T.P., and Vinurajkumar s.
(2013) Applications of Biosensors in Food
Industry. Biosciences Biotechnology Research
Asia. 10(2), 707-711.
2) Sharma H., Agarwal M., Goswami M., Sharma
A., Roy S.K., Rai S., and Murugan M.S.(2013)
Biosensors: tool for food borne pathogen
detection. Veterinary World. 6(12), 968-973.
18
Thank you!
19

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THE USE OF BIOSENSORS IN FOOD INDUSTRY

  • 1. THE USE OF BIOSENSORS IN FOOD INDUSTRY W.A.G.E.Wijelath AG/12/FT/024 Department of Food Science and Technology, Faculty of agriculture, University of Peradeniya. . BFST-2102 SEMINAR IN FOOD SCIENCE AND TECHNOLOGY
  • 2. Content 1.What is a biosensor 2.History of biosensors 3.Principle of the biosensor 4.The biosensor system 5.Classification of biosensor 6.Typical biosensor system 7.Applications in Food Industry 8.Features of biosensors used in the food industry 9.Trending Biosensors 10.Biosensors in Dairy Industry 11.Biosensors for pathogen detection 12.Biosensors in Nano Scale 2
  • 3. What Is a Biosensor ? Definition: Self-contained integrated device that is capable of providing specific qualitative or semi qualitative analytical information using a biological recognition element which is in direct spatial contact with a transduction element. (IUPAC,1998) 3
  • 4. History of Biosensors 4 Father of biosensors, Leyland C. Clark invented the clark oxygen electrode, a pivotal device that allows real-time monitoring of patient’s blood oxygen levels and has made surgery safer and more successful for millions around the world.
  • 5. The Principal of Biosensors • It is a sensing device comprised of a specific biological element and a transducer. • A “specific biological element” called bio-receptor recognizes a specific analyte and changes in the biomolecule are usually converted into an electrical signal by a transducer. 5
  • 7. The Biosensor System: Bioreceptor • A biologically derived material that interacts (binds or recognizes) the analyte. • Types: Nucleic acid Enzyme Antibody Microorganism 7
  • 8. The Biosensor System: Transducer • A transducer is a device that converts one type of energy to another. 8
  • 11. Applications in Food Industry • Detection of heavy metals • Detection of residual agrochemicals • Detection of toxic metabolites • Food borne pathogen detection • Assure food safety • As indicators of product acceptability • Detection of unpermitted chemicals • Sensory analysis 11
  • 12. Features of biosensors used in the food industry • Target specificity • Electronic integration • Small size • Fast response time • Stability • Mass producible • Continuous signal 12
  • 13. Trending Biosensors E- nose •Detection of odd volatile compounds •Application in Tea, Wine, Coffee and spices industry E- Tongue •A colorimetric sensor array is used •Application in liquid food industry 13
  • 14. Biosensors in Dairy Industry • DNA testing of the cows • Pathogen testing in the milk • Micro-organism identification in the milk • Test for preservation and pasteurization 14
  • 15. Biosensors for pathogen detection 15
  • 16. Biosensors in Nano Scale • Embedded in food packages • NEMS • Integrated in e- noses 16
  • 17. Summary • Biosensors are based on use of biological material as the sensing element which reacts or interacts with the analyte resulting in a detectable chemical or physical change. • The inherent specificity, sensitivity and adaptability make them ideal candidate for use throughout the food industry. 17
  • 18. References 1) Murugaboopathi G., Parthasarathy V., Chellaram C., Anand T.P., and Vinurajkumar s. (2013) Applications of Biosensors in Food Industry. Biosciences Biotechnology Research Asia. 10(2), 707-711. 2) Sharma H., Agarwal M., Goswami M., Sharma A., Roy S.K., Rai S., and Murugan M.S.(2013) Biosensors: tool for food borne pathogen detection. Veterinary World. 6(12), 968-973. 18