SlideShare a Scribd company logo
OBT554
Unit 5
Dr K.Geetha
Associate Professor, Dept of
Biotechnology, Kamaraj College of
Engg & Tech, Madurai
 Preservative factors or hurdles disturb the
homeostasis of microorganisms.
 Microorganisms should not be able to “jump
over” all the hurdles present in the food
product.
 Preservative factors prevents microorganisms
from multiplying and causing them to remain
inactive or even die.
 The hurdle concept illustrates that complex
interactions of temperature, water activity, pH
etc are significant to the microbial stability.
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology
Hurdle technology

More Related Content

What's hot

Refrigerated gas storage & gas packed refrigerated foods
Refrigerated gas storage & gas packed refrigerated foodsRefrigerated gas storage & gas packed refrigerated foods
Refrigerated gas storage & gas packed refrigerated foods
Kamaraj College of Engineering & Technology, Virudhunagar
 
Shelf life of food products - Dr KG/KCET
Shelf life of food products - Dr KG/KCETShelf life of food products - Dr KG/KCET
Shelf life of food products - Dr KG/KCET
Kamaraj College of Engineering & Technology, Virudhunagar
 
Sub atmospheric storage, gas atmospheric storage
Sub atmospheric storage, gas atmospheric storageSub atmospheric storage, gas atmospheric storage
Sub atmospheric storage, gas atmospheric storage
Kamaraj College of Engineering & Technology, Virudhunagar
 
Nature of harvested crop, plant and animal
Nature of harvested crop, plant and animal Nature of harvested crop, plant and animal
Nature of harvested crop, plant and animal
Kamaraj College of Engineering & Technology, Virudhunagar
 
Newer methods of thermal processing - Dr KG/KCET
Newer methods of thermal processing - Dr KG/KCETNewer methods of thermal processing - Dr KG/KCET
Newer methods of thermal processing - Dr KG/KCET
Kamaraj College of Engineering & Technology, Virudhunagar
 
Freezing and cold storage
Freezing and cold storage Freezing and cold storage
Newer methods of thermal processing
Newer methods of thermal processing Newer methods of thermal processing
Newer methods of thermal processing
Kamaraj College of Engineering & Technology, Virudhunagar
 
Sub atmospheric storage, gas atmospheric storage -Dr KG/KCET
Sub atmospheric storage, gas atmospheric storage -Dr KG/KCETSub atmospheric storage, gas atmospheric storage -Dr KG/KCET
Sub atmospheric storage, gas atmospheric storage -Dr KG/KCET
Kamaraj College of Engineering & Technology, Virudhunagar
 
Introduction to food preservation - Dr KG/KCET
Introduction to food preservation - Dr KG/KCETIntroduction to food preservation - Dr KG/KCET
Introduction to food preservation - Dr KG/KCET
Kamaraj College of Engineering & Technology, Virudhunagar
 
Hurdle technology
Hurdle technology Hurdle technology
Hurdle technology
Ammar Babar
 
Chemical preservatives, preservation by ionizing radiations
Chemical preservatives, preservation by ionizing radiations Chemical preservatives, preservation by ionizing radiations
Chemical preservatives, preservation by ionizing radiations
Kamaraj College of Engineering & Technology, Virudhunagar
 
Storage of raw materials and products using low temperature
Storage of raw materials and products using low temperature Storage of raw materials and products using low temperature
Storage of raw materials and products using low temperature
Kamaraj College of Engineering & Technology, Virudhunagar
 
Properties of air water mixtures
Properties of air water mixturesProperties of air water mixtures
Control of water activity -Dr KG/KCET
Control of water activity -Dr KG/KCETControl of water activity -Dr KG/KCET
Control of water activity -Dr KG/KCET
Kamaraj College of Engineering & Technology, Virudhunagar
 
Thermal processing batch and continuous
Thermal processing  batch and continuous Thermal processing  batch and continuous
Thermal processing batch and continuous
Kamaraj College of Engineering & Technology, Virudhunagar
 
Ohmic heating
Ohmic heating Ohmic heating
Ohmic heating
Anjali Sudhakar
 
Dehydro freezing, freeze drying, IQF
Dehydro freezing, freeze drying, IQFDehydro freezing, freeze drying, IQF
Dehydro freezing, freeze drying, IQF
Kamaraj College of Engineering & Technology, Virudhunagar
 
Storage of raw materials and products using low temperature-Dr KG/KCET
Storage of raw materials and products using low temperature-Dr KG/KCETStorage of raw materials and products using low temperature-Dr KG/KCET
Storage of raw materials and products using low temperature-Dr KG/KCET
Kamaraj College of Engineering & Technology, Virudhunagar
 
Freezing of raw and processed foods
Freezing of raw and processed foods Freezing of raw and processed foods
Freezing of raw and processed foods
Kamaraj College of Engineering & Technology, Virudhunagar
 
Application of infra red microwaves - Dr KG/KCET
Application of infra red microwaves - Dr KG/KCETApplication of infra red microwaves - Dr KG/KCET
Application of infra red microwaves - Dr KG/KCET
Kamaraj College of Engineering & Technology, Virudhunagar
 

What's hot (20)

Refrigerated gas storage & gas packed refrigerated foods
Refrigerated gas storage & gas packed refrigerated foodsRefrigerated gas storage & gas packed refrigerated foods
Refrigerated gas storage & gas packed refrigerated foods
 
Shelf life of food products - Dr KG/KCET
Shelf life of food products - Dr KG/KCETShelf life of food products - Dr KG/KCET
Shelf life of food products - Dr KG/KCET
 
Sub atmospheric storage, gas atmospheric storage
Sub atmospheric storage, gas atmospheric storageSub atmospheric storage, gas atmospheric storage
Sub atmospheric storage, gas atmospheric storage
 
Nature of harvested crop, plant and animal
Nature of harvested crop, plant and animal Nature of harvested crop, plant and animal
Nature of harvested crop, plant and animal
 
Newer methods of thermal processing - Dr KG/KCET
Newer methods of thermal processing - Dr KG/KCETNewer methods of thermal processing - Dr KG/KCET
Newer methods of thermal processing - Dr KG/KCET
 
Freezing and cold storage
Freezing and cold storage Freezing and cold storage
Freezing and cold storage
 
Newer methods of thermal processing
Newer methods of thermal processing Newer methods of thermal processing
Newer methods of thermal processing
 
Sub atmospheric storage, gas atmospheric storage -Dr KG/KCET
Sub atmospheric storage, gas atmospheric storage -Dr KG/KCETSub atmospheric storage, gas atmospheric storage -Dr KG/KCET
Sub atmospheric storage, gas atmospheric storage -Dr KG/KCET
 
Introduction to food preservation - Dr KG/KCET
Introduction to food preservation - Dr KG/KCETIntroduction to food preservation - Dr KG/KCET
Introduction to food preservation - Dr KG/KCET
 
Hurdle technology
Hurdle technology Hurdle technology
Hurdle technology
 
Chemical preservatives, preservation by ionizing radiations
Chemical preservatives, preservation by ionizing radiations Chemical preservatives, preservation by ionizing radiations
Chemical preservatives, preservation by ionizing radiations
 
Storage of raw materials and products using low temperature
Storage of raw materials and products using low temperature Storage of raw materials and products using low temperature
Storage of raw materials and products using low temperature
 
Properties of air water mixtures
Properties of air water mixturesProperties of air water mixtures
Properties of air water mixtures
 
Control of water activity -Dr KG/KCET
Control of water activity -Dr KG/KCETControl of water activity -Dr KG/KCET
Control of water activity -Dr KG/KCET
 
Thermal processing batch and continuous
Thermal processing  batch and continuous Thermal processing  batch and continuous
Thermal processing batch and continuous
 
Ohmic heating
Ohmic heating Ohmic heating
Ohmic heating
 
Dehydro freezing, freeze drying, IQF
Dehydro freezing, freeze drying, IQFDehydro freezing, freeze drying, IQF
Dehydro freezing, freeze drying, IQF
 
Storage of raw materials and products using low temperature-Dr KG/KCET
Storage of raw materials and products using low temperature-Dr KG/KCETStorage of raw materials and products using low temperature-Dr KG/KCET
Storage of raw materials and products using low temperature-Dr KG/KCET
 
Freezing of raw and processed foods
Freezing of raw and processed foods Freezing of raw and processed foods
Freezing of raw and processed foods
 
Application of infra red microwaves - Dr KG/KCET
Application of infra red microwaves - Dr KG/KCETApplication of infra red microwaves - Dr KG/KCET
Application of infra red microwaves - Dr KG/KCET
 

More from Kamaraj College of Engineering & Technology, Virudhunagar

Reproduction & Life cycle of micro and macro algae
Reproduction & Life cycle of micro and macro algaeReproduction & Life cycle of micro and macro algae
Reproduction & Life cycle of micro and macro algae
Kamaraj College of Engineering & Technology, Virudhunagar
 
Isolation and characterization, Culture Media & Harvesting of Algae
Isolation and characterization, Culture Media & Harvesting of AlgaeIsolation and characterization, Culture Media & Harvesting of Algae
Isolation and characterization, Culture Media & Harvesting of Algae
Kamaraj College of Engineering & Technology, Virudhunagar
 
Growth curve and Measurement of algal growth
Growth curve and Measurement of algal growthGrowth curve and Measurement of algal growth
Growth curve and Measurement of algal growth
Kamaraj College of Engineering & Technology, Virudhunagar
 
Chemical Composition of micro and macro Algae
Chemical Composition of micro and macro AlgaeChemical Composition of micro and macro Algae
Chemical Composition of micro and macro Algae
Kamaraj College of Engineering & Technology, Virudhunagar
 
Structure of micro and macro algal cells
Structure of micro and macro algal cellsStructure of micro and macro algal cells
Structure of micro and macro algal cells
Kamaraj College of Engineering & Technology, Virudhunagar
 
Sampling methodology of micro and macro algae
Sampling methodology of micro and macro algaeSampling methodology of micro and macro algae
Sampling methodology of micro and macro algae
Kamaraj College of Engineering & Technology, Virudhunagar
 
Introduction to Algae and its classification
Introduction to Algae and its classificationIntroduction to Algae and its classification
Introduction to Algae and its classification
Kamaraj College of Engineering & Technology, Virudhunagar
 
Distribution of Economically Important Algae in India
Distribution of Economically Important Algae in IndiaDistribution of Economically Important Algae in India
Distribution of Economically Important Algae in India
Kamaraj College of Engineering & Technology, Virudhunagar
 
Conservation of micro and macro algal species
Conservation of micro and macro algal speciesConservation of micro and macro algal species
Conservation of micro and macro algal species
Kamaraj College of Engineering & Technology, Virudhunagar
 
Taxonomic identification of micro and macro algae
Taxonomic identification of micro and macro algaeTaxonomic identification of micro and macro algae
Taxonomic identification of micro and macro algae
Kamaraj College of Engineering & Technology, Virudhunagar
 
Restriction-Modification system, Types of Restriction enzymes
Restriction-Modification system, Types of Restriction enzymesRestriction-Modification system, Types of Restriction enzymes
Restriction-Modification system, Types of Restriction enzymes
Kamaraj College of Engineering & Technology, Virudhunagar
 
Calculation of refrigeration load
Calculation of refrigeration load Calculation of refrigeration load
Rate of drying for food products
Rate of drying for food products Rate of drying for food products
Design parameters of different type of dryers
Design parameters of different type of dryers Design parameters of different type of dryers
Design parameters of different type of dryers
Kamaraj College of Engineering & Technology, Virudhunagar
 
Design of freezers and cold storages
Design of freezers and cold storages Design of freezers and cold storages
Design of freezers and cold storages
Kamaraj College of Engineering & Technology, Virudhunagar
 
Preservation by concentration and dehydration
Preservation by concentration and dehydrationPreservation by concentration and dehydration
Preservation by concentration and dehydration
Kamaraj College of Engineering & Technology, Virudhunagar
 
Osmotic methods
Osmotic methods Osmotic methods
Ohmic heating
Ohmic heatingOhmic heating
In container sterilization canning
In container sterilization  canning In container sterilization  canning
Difference between batch and continuous mode
Difference between batch and continuous modeDifference between batch and continuous mode
Difference between batch and continuous mode
Kamaraj College of Engineering & Technology, Virudhunagar
 

More from Kamaraj College of Engineering & Technology, Virudhunagar (20)

Reproduction & Life cycle of micro and macro algae
Reproduction & Life cycle of micro and macro algaeReproduction & Life cycle of micro and macro algae
Reproduction & Life cycle of micro and macro algae
 
Isolation and characterization, Culture Media & Harvesting of Algae
Isolation and characterization, Culture Media & Harvesting of AlgaeIsolation and characterization, Culture Media & Harvesting of Algae
Isolation and characterization, Culture Media & Harvesting of Algae
 
Growth curve and Measurement of algal growth
Growth curve and Measurement of algal growthGrowth curve and Measurement of algal growth
Growth curve and Measurement of algal growth
 
Chemical Composition of micro and macro Algae
Chemical Composition of micro and macro AlgaeChemical Composition of micro and macro Algae
Chemical Composition of micro and macro Algae
 
Structure of micro and macro algal cells
Structure of micro and macro algal cellsStructure of micro and macro algal cells
Structure of micro and macro algal cells
 
Sampling methodology of micro and macro algae
Sampling methodology of micro and macro algaeSampling methodology of micro and macro algae
Sampling methodology of micro and macro algae
 
Introduction to Algae and its classification
Introduction to Algae and its classificationIntroduction to Algae and its classification
Introduction to Algae and its classification
 
Distribution of Economically Important Algae in India
Distribution of Economically Important Algae in IndiaDistribution of Economically Important Algae in India
Distribution of Economically Important Algae in India
 
Conservation of micro and macro algal species
Conservation of micro and macro algal speciesConservation of micro and macro algal species
Conservation of micro and macro algal species
 
Taxonomic identification of micro and macro algae
Taxonomic identification of micro and macro algaeTaxonomic identification of micro and macro algae
Taxonomic identification of micro and macro algae
 
Restriction-Modification system, Types of Restriction enzymes
Restriction-Modification system, Types of Restriction enzymesRestriction-Modification system, Types of Restriction enzymes
Restriction-Modification system, Types of Restriction enzymes
 
Calculation of refrigeration load
Calculation of refrigeration load Calculation of refrigeration load
Calculation of refrigeration load
 
Rate of drying for food products
Rate of drying for food products Rate of drying for food products
Rate of drying for food products
 
Design parameters of different type of dryers
Design parameters of different type of dryers Design parameters of different type of dryers
Design parameters of different type of dryers
 
Design of freezers and cold storages
Design of freezers and cold storages Design of freezers and cold storages
Design of freezers and cold storages
 
Preservation by concentration and dehydration
Preservation by concentration and dehydrationPreservation by concentration and dehydration
Preservation by concentration and dehydration
 
Osmotic methods
Osmotic methods Osmotic methods
Osmotic methods
 
Ohmic heating
Ohmic heatingOhmic heating
Ohmic heating
 
In container sterilization canning
In container sterilization  canning In container sterilization  canning
In container sterilization canning
 
Difference between batch and continuous mode
Difference between batch and continuous modeDifference between batch and continuous mode
Difference between batch and continuous mode
 

Recently uploaded

按照学校原版(KCL文凭证书)伦敦国王学院毕业证快速办理
按照学校原版(KCL文凭证书)伦敦国王学院毕业证快速办理按照学校原版(KCL文凭证书)伦敦国王学院毕业证快速办理
按照学校原版(KCL文凭证书)伦敦国王学院毕业证快速办理
vdabso
 
Food smoking- processing & preservation.pptx
Food smoking- processing & preservation.pptxFood smoking- processing & preservation.pptx
Food smoking- processing & preservation.pptx
KalyaniThoteLondhe
 
Agriculture Market : Global Trends and Forecast Analysis (2023-2032)
Agriculture Market : Global Trends and Forecast Analysis (2023-2032)Agriculture Market : Global Trends and Forecast Analysis (2023-2032)
Agriculture Market : Global Trends and Forecast Analysis (2023-2032)
PriyanshiSingh187645
 
一比一原版(Bristol毕业证)布里斯托大学毕业证如何办理
一比一原版(Bristol毕业证)布里斯托大学毕业证如何办理一比一原版(Bristol毕业证)布里斯托大学毕业证如何办理
一比一原版(Bristol毕业证)布里斯托大学毕业证如何办理
uhyqho
 
Science Text Book characteristics and library
Science Text Book characteristics and libraryScience Text Book characteristics and library
Science Text Book characteristics and library
Jerslin Muller
 
Top 12 Best Restaurants in Panchkula city
Top 12 Best Restaurants in Panchkula cityTop 12 Best Restaurants in Panchkula city
Top 12 Best Restaurants in Panchkula city
Tricity help post
 
一比一原版美国宾夕法尼亚州立大学毕业证(penstate学位证)如何办理
一比一原版美国宾夕法尼亚州立大学毕业证(penstate学位证)如何办理一比一原版美国宾夕法尼亚州立大学毕业证(penstate学位证)如何办理
一比一原版美国宾夕法尼亚州立大学毕业证(penstate学位证)如何办理
p74xokfq
 
一比一原版美国俄克拉荷马大学毕业证(ou学位证)如何办理
一比一原版美国俄克拉荷马大学毕业证(ou学位证)如何办理一比一原版美国俄克拉荷马大学毕业证(ou学位证)如何办理
一比一原版美国俄克拉荷马大学毕业证(ou学位证)如何办理
p74xokfq
 
Discover the Magic 7 Fruits for Weight Loss You Need to Know About!.pdf
Discover the Magic 7 Fruits for Weight Loss You Need to Know About!.pdfDiscover the Magic 7 Fruits for Weight Loss You Need to Know About!.pdf
Discover the Magic 7 Fruits for Weight Loss You Need to Know About!.pdf
RapidLeaks
 
一比一原版美国俄克拉荷马城市大学毕业证(ocu学位证)如何办理
一比一原版美国俄克拉荷马城市大学毕业证(ocu学位证)如何办理一比一原版美国俄克拉荷马城市大学毕业证(ocu学位证)如何办理
一比一原版美国俄克拉荷马城市大学毕业证(ocu学位证)如何办理
p74xokfq
 
Exploring_Karnali_Region_of_Nepal_(Food, Culture and People).pptx
Exploring_Karnali_Region_of_Nepal_(Food, Culture and People).pptxExploring_Karnali_Region_of_Nepal_(Food, Culture and People).pptx
Exploring_Karnali_Region_of_Nepal_(Food, Culture and People).pptx
Lincoln University
 
Coffee Presentation Coffee in the CordillerasPDF.pdf
Coffee Presentation Coffee in the CordillerasPDF.pdfCoffee Presentation Coffee in the CordillerasPDF.pdf
Coffee Presentation Coffee in the CordillerasPDF.pdf
ronnelapilado23
 

Recently uploaded (12)

按照学校原版(KCL文凭证书)伦敦国王学院毕业证快速办理
按照学校原版(KCL文凭证书)伦敦国王学院毕业证快速办理按照学校原版(KCL文凭证书)伦敦国王学院毕业证快速办理
按照学校原版(KCL文凭证书)伦敦国王学院毕业证快速办理
 
Food smoking- processing & preservation.pptx
Food smoking- processing & preservation.pptxFood smoking- processing & preservation.pptx
Food smoking- processing & preservation.pptx
 
Agriculture Market : Global Trends and Forecast Analysis (2023-2032)
Agriculture Market : Global Trends and Forecast Analysis (2023-2032)Agriculture Market : Global Trends and Forecast Analysis (2023-2032)
Agriculture Market : Global Trends and Forecast Analysis (2023-2032)
 
一比一原版(Bristol毕业证)布里斯托大学毕业证如何办理
一比一原版(Bristol毕业证)布里斯托大学毕业证如何办理一比一原版(Bristol毕业证)布里斯托大学毕业证如何办理
一比一原版(Bristol毕业证)布里斯托大学毕业证如何办理
 
Science Text Book characteristics and library
Science Text Book characteristics and libraryScience Text Book characteristics and library
Science Text Book characteristics and library
 
Top 12 Best Restaurants in Panchkula city
Top 12 Best Restaurants in Panchkula cityTop 12 Best Restaurants in Panchkula city
Top 12 Best Restaurants in Panchkula city
 
一比一原版美国宾夕法尼亚州立大学毕业证(penstate学位证)如何办理
一比一原版美国宾夕法尼亚州立大学毕业证(penstate学位证)如何办理一比一原版美国宾夕法尼亚州立大学毕业证(penstate学位证)如何办理
一比一原版美国宾夕法尼亚州立大学毕业证(penstate学位证)如何办理
 
一比一原版美国俄克拉荷马大学毕业证(ou学位证)如何办理
一比一原版美国俄克拉荷马大学毕业证(ou学位证)如何办理一比一原版美国俄克拉荷马大学毕业证(ou学位证)如何办理
一比一原版美国俄克拉荷马大学毕业证(ou学位证)如何办理
 
Discover the Magic 7 Fruits for Weight Loss You Need to Know About!.pdf
Discover the Magic 7 Fruits for Weight Loss You Need to Know About!.pdfDiscover the Magic 7 Fruits for Weight Loss You Need to Know About!.pdf
Discover the Magic 7 Fruits for Weight Loss You Need to Know About!.pdf
 
一比一原版美国俄克拉荷马城市大学毕业证(ocu学位证)如何办理
一比一原版美国俄克拉荷马城市大学毕业证(ocu学位证)如何办理一比一原版美国俄克拉荷马城市大学毕业证(ocu学位证)如何办理
一比一原版美国俄克拉荷马城市大学毕业证(ocu学位证)如何办理
 
Exploring_Karnali_Region_of_Nepal_(Food, Culture and People).pptx
Exploring_Karnali_Region_of_Nepal_(Food, Culture and People).pptxExploring_Karnali_Region_of_Nepal_(Food, Culture and People).pptx
Exploring_Karnali_Region_of_Nepal_(Food, Culture and People).pptx
 
Coffee Presentation Coffee in the CordillerasPDF.pdf
Coffee Presentation Coffee in the CordillerasPDF.pdfCoffee Presentation Coffee in the CordillerasPDF.pdf
Coffee Presentation Coffee in the CordillerasPDF.pdf
 

Hurdle technology

  • 1. OBT554 Unit 5 Dr K.Geetha Associate Professor, Dept of Biotechnology, Kamaraj College of Engg & Tech, Madurai
  • 2.
  • 3.  Preservative factors or hurdles disturb the homeostasis of microorganisms.  Microorganisms should not be able to “jump over” all the hurdles present in the food product.  Preservative factors prevents microorganisms from multiplying and causing them to remain inactive or even die.  The hurdle concept illustrates that complex interactions of temperature, water activity, pH etc are significant to the microbial stability.