Psychrophiles grow at temperatures just above freezing and at refrigeration tempratures.
They produce a wide variety of spoilage defects. The defects may result in the production bf many "off" flavours
and
odours.
The
most
commonly
encountered
psychrophilic
bacteria
are
members
of
the
genera
pseudomonas,
Achromobacter,
Vibrio,
Flavobacterium
and
Alcaligenes,
They
arc
killed
in
the
pasteurization
process,
but
are
sometimes
found
in
pasteurized
milk.
The
contamination takes place after pasteurization from equipment, cans, bottles, and water.
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