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Environmental and Current Food Issues
Nanotechnology is the manufacture of food and food packaging materials on a minute scale.
It is measured by nanometres (1 nanometre = 1 millionth of a centimetre).
Potential uses being developed are
1. Delivering vitamins or other nutrients in food and drink straight into the blood stream.
2. Enhancing the colour and flavour of some foods.
3. Providing a barrier of moisture of gases in food packaging to prevent the food drying
Although there is great potential it is expensive and there are primary concerns about the risk to
Scientists have learnt how to alter the genes of foods and animals to improve their quality e.g. to
add more flavour in a tomato, to increase crop yield.
These are called genetically modified foods.
Have to be approved by the FSA (Food Standards Agency).
Certain crop diseases could be controlled reducing the use of pesticides so that food becomes
Could decrease poverty in the developing world.
Increase nutritious value and aesthetic qualities.
Creates a reduced gene pool.
Possible longterm health effects on humans as well as animals.
Regularly used without labelling people don't realise that they're eating GM goods.
Developed by humans either the foods itself or the process of manufacture.
They are added to other foods to give specific additional properties. For example, some yoghurts
and spreads have plant extracts added, which may help to lower cholesterol levels in the blood.
A vegetarian protein substitute for meat made from mushrooms. Quorn is high fibre and low in fat.
This involves trapping the flavour of our food in an outer shell to be released later. This process is
used to add flavour to jelly beans and crisps.
They are used to thicken food products when a liquid is added. For example, instant noodles contain
A way of measuring the distance food has travelled from the farm to the plate.
All methods of transport produce some carbon dioxide which causes or contributes to global
The greater the distance travelled, the more carbon dioxide produced.
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However, the UK is not quite able to produce all the food we eat due to its climate and lack of
All forms of transport use oil a nonrenewable energy source.
Making food in greenhouses use more energy than transporting food.
Foods which have been grown without the use of chemicals, fertilisers or pesticides.
They contain no artificial additives.…read more