Food Provenance Flashcards
what is food provenance
Where food initially comes from.
what are the two ways crops can be grown
intensively- using chemicals to achieve maximum yields
or
organically - using natural methods to grow food
features of intensive farming
Uses methods that will produce the highest possible yield. production is often on a larger scale and with huge areas growing the same crop.
They often use large mechanical equipment to save time and cut down production costs.
Chemical fertilisers in order to supply nutrients to crops to active best growth and development
pesticides, insecticides, herbicides, fungicides are sprayed onto the the plants to artificially protect them form harmful insects and weeds that could affect their growth.
artificial substances could lead to possible pollution of rivers, harm wildlife, possible harmful effect on human health
Features of organic farming
organ farming grows without artificial fertilisers and pesticides etc. they will instead use lady bugs to eat aphids.
Farmers often grow less and rotate crops/ soil to make sure soil is always fertile
organic manure or compost is added to soil so that plants have a natural fertiliser
however all these methods produce less crops and are more expensive.
Advantages and disadvantages of organic?
Advantages- less use of artificial (chemical) pesticides, insecticides, herbicides going onto land so it is better for environment.
appeal more to customers that are concerned With consuming intensive farmed products.
crops are grown in a more sustainable way so it had less negative impacts on environment
Disadvantages- production is slower as they only use natural resources which may work less effectively.
its more expensive as higher production costs
There is a lower yield of crops
what are genetically modified foods
Foods that have altered genes to give to useful characteristics such as improving its growth or changing its colours.
if more that 0.9 of foods genes/ genetic information has been altered it must be declared as GM
crops are modified by a
desirable gene from another crop being inserted into the other corp to modify it and improve it
examples of genetic modification
maize has been genetically modified to become more pest resistant as a result there is a higher yield as less is being eaten by pests.
crops can become genetically modified so that it can become herbicide resistant and not die when other chemicals are applied.
Currently no GM crops in UK but some in USA - maize, soya bean, cotton
advantages of genetic modification
Crops can be madero grow quicker to have a higher yield.
crops can be produced cheaper resulting in cheaper price for consumer.
crops can remade to ripen quicker so that more fresh food is available in any season/ withstand very hot or cold temperatures.
crops can be made to contain more nutrients preventing sever deficiencies
Crops can be made to have longer shelf life so that less is wasted
resist bad weather and help farmers by resetting common meant diseases
Disadvantages of genetic modification
the long term effects of genetically modified foods on humans is not yet known as GM foods haven’t been around for very long.
GM crops genes can get Into environment interfering with natural habitat and creating weedkiller resistant weeds resulting in indestructible weeds.
GM crops are restricted by some countries such as countries within European Union.
what are some consumer safety concerns about genetic modification.
That foods are becoming unnatural
all GM crops should be specifically labeled
animals that gave consumed GM foods should are not legible and should not be consumed.
GM foods should undergo strike safety assessments.
what type of foods are grown
fruits, vegetables and cereals
what types of food are reared and how can they be reared
meat and poultry- chicken, cow, pigs, lamb, duck. Through free range farming or intensive farming or organically.
what type of foods are caught
fish
what is the EU law about foods
Foods should be fully traceable meaning we should be able to track any food source at all of its stages.
production and processing - supply
who can food be labelled as organic
when at least 95% of ingredients come from organic sources.