The 5 Key Nutrients Flashcards
What are the two micronutrients?
Vitamins and minerals
What are the three macronutrients?
Protein, fats and carbohydrates
What is the protein job?
Protein is needed for growth and repair of cells
What is the jobs of fats
It’s needed to provide energy to heat the body warm to protect internal organs and provide essential facts
What is carbohydrates for?
They are needed for energy
What are vitamins for?
Vitamins are needed to protect the body and prevent disease
What are minerals for?
They are also needed for protection from illness and disease
Definition of macronutrient
They are needed in larger amounts by the body
Definition of micronutrients
They are needed in small amounts
What’s a good thing about chilling food?
It could have a preservative effect by retarding microbial activity
What is modified atmosphere packaging?
The enclosure of a food example, bacon in a package which the atmosphere has been changed by altering the proportions of carbon dioxide, oxygen nitrogen, water vapour, and trace gases
What does modified atmosphere packaging limit?
Microbial as wells as biochemical activity
How does modified atmosphere packaging work?
It’s performed by gas flush. Air is removed and replaced by a controlled mixture of gases.
What is all the packaging for this process based on?
Thermoplastic polymers
What are the reasons thermoplastic polymers are used
Have greater flexibility
Light in weight provide a gas barrier
can be sealed easily
can be printed on
Why is thermoplastic polymers used?
Are resistant to physical pressures of manufacturing ,distributing and retailing
have good aesthetic properties
can be multi layered with other materials to enhance overall properties
Why is vacuum packaging good
Many spoilage microorganisms are aerobic, meaning that they grow as in the environment with oxygen removing much of the air with within packaging can therefore limit the growth of these organisms
What does vacuum packaging prevent?
It prevents aromatic compounds in the feed product from evaporating of allowing the product to maintain sense and flavours in my otherwise lose .
What is vacuum packaging combined with?
Other preservation methods in order to limit a group example, maintaining cold temperatures
Vacuum packaging at home
The food should be eaten within 10 days. The packet should be sealed or left in the fridge until it’s eaten to keep it safe. Once the packaging is open it should still be kept in the fridge like other chilled foods and eaten within two days.
What’s an example of an ambient food product
Canned and aseptically package foods so ready meals, and fruit juices
Where are ambient food products, stored and sold
Stored and sold at room temperature
And ambient foods what are the two main heat processes used?
Pasteurisation and sterilisation
What ambient foods are not, heat treated
Cereal
Ambient food products undergo rigourous heat treatment, so what organisms survive
Only humus microorganism survive
What is the rigourous heat treatment known as
Botulinum cook
What ambient food products should be stored carefully
Rice, cereal and pulses
Why do some ambient feed products need to be stored carefully?
The moisture content for each needs to be uploaded to prevent mould and yeast spoilage
