Transcript Food spoilage organisms

Food spoilage
organisms
Lesson objective – to
understand the conditions
that cause food spoilage
Questions
• Do you know when food spoilage
may occur?
• What is physical contamination?
• How could transportation affect food?
• What is the average shelf life of fresh
food?
Lesson objective – to understand the conditions that cause
food spoilage
Micro-organisms
• Yeasts
• Mounds
• Bacteria
• Task 1 – find out what all three of
these mean
Lesson objective – to understand the conditions that cause
food spoilage
Did you know?
• Ion order to grow and multiply
micro-organisms you need:
– Warmth\moisture
– Food supply
– Time
– Air\neutral pH
– If one or more of these conditions is
removed then growth of microorganisms is slowed
Lesson objective – to understand the conditions that cause
food spoilage
Task 2
• Go onto the internet and copy and paste a
temperature control that shows the
prevention of food spoilage indicators
• Task 3
• Now read the case study on page 79 and
answer the questions 1-2-3
• List what micro organisms are (all three)
• What does aerobic bacteria need to grow?
• Wht does Anaerobic bacteria need to
grow?
Lesson objective – to understand the conditions that cause
food spoilage