Spoilage

Growth of microorganism in foods may bring about various undesirable changes(both chemical and physical) and this product is said to be spoiled.EXAMPLE:-

Pseudomonas fluorescens	Pseudomonas nifricans	Clostridium sporogenes

produce greenish pigments	Form black pigments on protein foods	Spoilage of meat and vegetables in canned food

DISEASE

Food may act as vectors or growth substances for microorganism which are pathogenic to human.EXAMPLE:

Microorganism	Disease
Clostridium perfiringes	Cause food poisoining click here
Clostridium botulinum	Cause food poisoining.
Bacillus cereus	Cause food poisoining.

Salmonella thyphi	Cause typhoid fever click here
Salmonella parathyphi	Cause Typhoid fever