The flashcards below were created by user
Anonymous
on FreezingBlue Flashcards.
-
What are microbiological criteria?
Microbiological criteria provide guidance on the acceptability of food and the manufacturing process
-
What are satisfactory criteria for Campylobacter, Salmonella and Listeria monocytogenes in ready-to-eat foods?
They must not be detectable in 25g
-
What is the legislation for microbiological criteria in the UK?
EU commission regulation on microbiological criteria for foodstuffs (EC No 2073/2005)
-
Which two organisms does the food safety criteria of legislation mainly focus on?
Salmonella and Listeria
-
How often should sampling take place in a meat plant?
At least weekly
-
What are the microbiological criteria for individual foods?
- Salmonella in meat, meat preparations and products thereof
- Listeria monocytogenes in ready-to-eat foods where produced in a plant supervised by the OV
- Aerobic colony counts
- Enterobacteriacae
- E.coli
-
What action must be taken if individual batches do not met the criteria?
They must be disposed of safely or reprocessed in an approved fashion
-
What are the different categories of bacterial spoilage organisms?
Pathogens, incidentals, psychotrophs
-
What are the different categories of fungal spoilage organisms?
Pathogens, others
-
List different places organisms in food can come from
Animals, plants, the environment, pests, directly from handlers, water used in preparation, surfaces
-
How can we monitor food?
- Visually - state of package, surface appearance, deep appearance
- Olfactory - smell
- Gustatory - taste cooked/prepared
-
List different mechanisms of spoilage
- Sugar fermentation with acid and gas production
- Protein hydrolysis due to bacterial enzymes ie proteases
- Digestion of complex carbohydrates due to fungal enzymes i.e. pectinases
- Lipolysis - lipolytic enzymes
- Surface growth
-
List different pathogens of environmental origin
Listeria monocytogenes, aeromonas hydrophila/sobria/caviae, C. botulinum, Antrax, Mycobacterium, Mycotoxic fungi, Burkholderia pseudomallei, Blue green algae, Vibrio parahaemolyticus
-
List different types of mould
- "Black spot" - Cladosporium
- "White spot" - Sporotrichum
- "Whiskers" - Mucor
|
|