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GROUP 5

2 Nguyễn Diệu My 12H2

F O O D I R R A D I AT I O N

What is food irradiation?

FOOD IRRADIATION is the use of ionizing radiations

for illuminating to food in order to kill viruses bacteria,

fungi, and insects, prolongs the life of food and prevents

fruits and vegetables from ripening too fast

Several energy sources can be used to irradiate food :

-gamma rays

-electron beams (beta rays)

-X-rays

Bactericial mechanisms

When the radiation interacts with matter, it will cause ionization

When the DNA molecules are ionized, the link between them

is fractured

If the bare irradiation is used,

pieces of DNA will not

recover again and the

cells will be destroyed,

the disease carrying

microorganism can

It is still a relatively Expensive

It can only

be used on

a very

limited

range of

foods

Vitamin E Levels can

be reduced

by 25% after

It is ineffective against viruses 

It is ineffective against viruses 

Food before irradiation was processed in hygienic conditions, reached

quality according to the correlative standard

Food before irradiation was processed in hygienic conditions, reached

quality according to the correlative standard

Requirements for irradiated food Requirements for irradiated food

Food shall not be irradiated again except: cereals, legumes, dried foods and other similar goods, which are irradiated with purpose of controlling the insect reinfection or inhibiting germination.

Food shall not be irradiated again except: cereals, legumes, dried foods and other similar goods, which are irradiated with purpose of controlling the insect reinfection or inhibiting germination.

Just being allowed circulating on the market the kinds of irradiation food have food labeling sufficiently as specified in Article 10 of this

Just being allowed circulating on the market the kinds of irradiation food have food labeling sufficiently as specified in Article 10 of this

1

1

2 2

3

3

Food before and after irradiation must be packed in the same packaging

Food before and after irradiation must be packed in the same packaging

Irradiated food must be stored in accordance with provisions such

as food has not been irradiated

Irradiated food must be stored in accordance with provisions such

as food has not been irradiated

Requirements for irradiated food Requirements for irradiated food

6 6

4 4

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As of August 1999, over 30 countries are irradiating food for

commercial purposes

Today, heath and safety authorities in over 40 countries have

approved irradiation of over 60 different foods, ranging from

spices to grains to be deboned chicken meat, do beef, to fruits

and vegetables

Food Irradiation Today