BACTERIA
Table about bacteria
|
Source |
Toxin in Food |
Oxygen & Food |
Growth Temp. |
Onset period |
Symptoms |
Spore former |
| Bacillus Cereus |
Soil & Cereals |
Heat resistant toxin |
Needs oxygen |
7-48 C |
1-5 hours |
Abdominal pain. vomiting & diarrhoea |
Yes |
| Campylobater jejuni |
Birds, mammals & Soil |
No |
Small amounts of oxygen |
32-45 C |
18-36 hours |
Abdominal pain, bloody diarrhoea |
No |
| Clostridium botulinum |
Soil, Vegetables & fish |
Toxin destroyed by heat |
Only in absence of oxygen |
20-30 C |
12-36 hours |
Difficulty in swallowing & breathing, paralysis: often fatal |
Yes |
| Clostridium perfringens |
Soil & guts of mammals |
Not usually in food |
Only in absence of oxygen |
15-50 C |
12-18 hours |
Abdominal pain & diarrhoea |
Yes |
| Escherichia coli |
Guts of mammals |
No |
Needs oxygen |
4-45 C |
12-24 hours |
Abdominal pain, fever , bloody diarrhoea, vomiting |
No |
| Listeria monocytogenes |
Sewage, soil & river water |
No |
Needs oxygen |
0-45 C |
Weeks or months |
Contraction of meningitis and septicemia. Can be fatal |
No |
| Salmonella sp. |
Guts of mammals, milk & eggs |
No |
With & without |
7-45 C |
12-36 hours |
Abdominal pain, diarrhoea & vomiting |
No |
| Staphylococcus aureus |
Ears, nose, throat & wounds |
Heat resistant toxin |
With & without |
7-45 C |
1-6 hours |
Abdominal pain, vomiting & reduced temperature |
No |
| Vibrio paraheamolyticus |
Prawns & crabs |
No |
With & without |
8-44 C |
12-24 hours |
Diarrhoea, vomiting, abdominal pain and dehydration |
No |
| Yersinia enterocolitica |
Guts of animals, raw milk & shellfish |
Heat resistant toxin |
Only without oxygen |
1-35 C |
3-5 days |
Diarrhoea, abdominal pain, fever & headache |
No |
