Difference between revisions of "Food Derived Hazards to Human Health"

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A [[Hazard]] is something that is potentially harmful - to humans, animals or the environment. There are many different hazards to humans that can arise in food. This section will describe the main ones.
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A [[hazard - WikiVPH|Hazard]] is something that is potentially harmful - to humans, animals or the environment. There are many different hazards to humans that can arise in food. This section will describe the main ones.
  
 
They are:
 
They are:
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==Foreign Bodies==
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=Foreign Bodies=
  
 
Foreign body contamination is the main cause of customer complaints & litergation relating to food hazards in the UK & other develooped countries. The foreign bodies may be metal, stone, plastic, hair etc.... Cereals, bread & flour are most commonly affected followed by processed meats, poultry & fish. Deteection systems may be in place. They may consist of metal detectors, X-ray machines or just visual inspection (1).
 
Foreign body contamination is the main cause of customer complaints & litergation relating to food hazards in the UK & other develooped countries. The foreign bodies may be metal, stone, plastic, hair etc.... Cereals, bread & flour are most commonly affected followed by processed meats, poultry & fish. Deteection systems may be in place. They may consist of metal detectors, X-ray machines or just visual inspection (1).
  
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==Pathogenic Organisms & their Toxins==
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=Pathogenic Organisms & their Toxins=
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Most overt food borne disease is caused by this category of hazards. Consequently this section will be dealt with in depth, see Foodborne Pathogenic Organisms (currently under construction).
 
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===Chemical Hazards===
 
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See [[Chemical Hazards]]
 
  
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Most overt food borne disease is caused by this category of hazards. Consequently this section will be dealt with in depth, see [[Foodborne Pathogenic Organisms - WikiVPH|Foodborne Pathogenic Organisms]]
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=Chemical Hazards=
 
=Radionucleotides=
 
=Radionucleotides=
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Although unusual, contamination of livestock with caesium-137 occurred after the Chernobyl nuclear power plant disaster in 1986.
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=Genetically Modified Foods=
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==Genetically Modified (GM) Foods==
 
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In this context this refers to organisms who have have had their genetic make up altered by molecular bioengineering. This can bring about transgenic organisms that carry genes taken from different species.
 
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Arguments against GM foods is that a GM strain may be used to such an extent that it limits biological diversity, causing a loss of the genetic material contained in lost & unused non-GM organisms, potentially compromising food security. Furthermore, if the GM strains are provided by a few multinational companies it could lead to an undesirable dependancy on these companies. Other issues are potential antimicrobial resistance arising through certain manufacturing conditions used in the creation some GM organisms. Also concern exists about the development of resistance to insecticides & herbicides produced by some GM organisms.
 
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Countering this, the use of GM foods could lead to increased production & reduced costs along with better [[organoleptic]] properties.
 
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The risk posed by GM foods is difficult to assess due to a lack of knowledge about their use & consequences. Regardless customers want to know if their food contains GM products or not. Differences in attitudes towards GM foods in the USA & the EU have led to trade wars.
 
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The use of GM organisms is more accepted in medical biotechnology than food production.
 
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See [http://www.efsa.europa.eu/EFSA/KeyTopics/efsa_locale-1178620753812_GMO.htm| EFSA-Genetically Modified Organisms]
 
  
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==[[References - WikiVPH|References]]==
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=[[References - WikiVPH|References]]=

Revision as of 13:45, 17 September 2008

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A Hazard is something that is potentially harmful - to humans, animals or the environment. There are many different hazards to humans that can arise in food. This section will describe the main ones.

They are:

Foreign Bodies

Foreign body contamination is the main cause of customer complaints & litergation relating to food hazards in the UK & other develooped countries. The foreign bodies may be metal, stone, plastic, hair etc.... Cereals, bread & flour are most commonly affected followed by processed meats, poultry & fish. Deteection systems may be in place. They may consist of metal detectors, X-ray machines or just visual inspection (1).

Pathogenic Organisms & their Toxins

Most overt food borne disease is caused by this category of hazards. Consequently this section will be dealt with in depth, see Foodborne Pathogenic Organisms

Chemical Hazards

Radionucleotides

Genetically Modified Foods

References

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