food provenance Flashcards
What is a GM crop?
a genetically modified crop that has has its genes altered to give it useful characteristics
What are the advantages of GM crops?
crops can have higher yields, crops can be modified to contain extra nutrients, production costs may be cheaper, food may be cheaper for the consumer
What are 2 EU regulations for GM crops?
- GM food has to pass strict safety tests before they can be sold
- Food that contains GM ingredients (more than 1%) have to be clearly labelled
What are the disadvantages of GM crops?
long-term health effects are unknown, could effect the wider environment (lose diversity)
Why is primary processing important?
ensures food is safe, easier to transport, doesn’t spoil as easily, looks nicer for consumer
How are vegetables primary processed?
washed to remove dirt, insects and chemical sprays
How is meat primary processed?
e.g. beef is hung and dried to make it more tender and to improve flavour
Milk is…
heat treated to remove pathogenic bacteria
What is the process of pasteurisation?
milk is quickly heated to 72C for 15 seconds and then rapidly cooled
What is the process of Ultra Heat Treatment?
milk is heated to at least 135C for 1-4 seconds and packed into a sterile container
What are the advantages of UHT milk?
can last at an ambient temp for several months
What are the disadvantages of UHT milk?
slightly less nutritional value and less taste than pasteurised
What is food miles?
distance food travels from farm to fork
How is a food’s carbon footprint calculated?
amount of fuel used during growing and production, transportation and the miles consumers travel to buy their food
How can CONSUMERS reduce their carbon footprint when shopping?
walk/ cycle to supermarket, shop locally and seasonally, grow your own fruit and veg