chemical hazards Flashcards
1
Q
types of hazards
A
chemical and physical
natural toxins, environmental pollutants
2
Q
how are contaminants in food
A
- generated during food processing/storage
- deliberately added
3
Q
EU prioirty
A
- phsyical = anything you can touch
- biological = MO bacteria, virus, parasites
- cehmcial = ATB, heavy metals
4
Q
chemical hazards
A
- harmful effect on health, added during prod/naturally occurring
- natural toxins = mushroom, animal origin, microbial toxin
- environmental toxin = radioactive elements, nitrates and nitrites, pesticides
5
Q
toxin from animal origin
A
histamine
- improperly stored fish
- causes indigestion, skin/neurologial changes
prions
- tissue suffering from BSE, not broken down via gut
6
Q
environmental pollutants
A
- dioxin - source in food, found in air
- health risks = cancer + repro problems
- accumulate in fatty tissue/meat, mil and dairy should be avoided
- PAHs in food, grilling, smoking, cooking = main source
7
Q
heavy metals
A
- highly toxin, accumulate in ecosystem
- Cd = fossil fuels, avoid consuming liver and kidneys
- Pb = widespread, enter during production
- mercury - seafood consumption
8
Q
toxins during processing/sotrage
A
- fat + oil oxidation productions = during frying
- trans FA (TFA) - naturally in some animal fats
- nitrosamines - smoked product
