Bacterial Quality of a Sample of Milk (Leaving Cert Agricultural Science): Flashcards
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Practise the cards
10 cards from this deck
Purpose of resazurin test
Purpose of resazurin test
Assess bacterial quality of milk samples
How resazurin test works
How resazurin test works
Bacteria consume oxygen, dye changes colour as oxygen depletes
Volume of milk per test tube in resazurin test
Volume of milk per test tube in resazurin test
10ml
Water bath temp for resazurin test
Water bath temp for resazurin test
37°C
Incubation time for resazurin test
Incubation time for resazurin test
10 minutes
Volume of resazurin solution added per tube
Volume of resazurin solution added per tube
1ml
Three milk types tested in resazurin test
Three milk types tested in resazurin test
Fresh unpasteurised, fresh pasteurised, stale pasteurised
Type of indicator resazurin is
Type of indicator resazurin is
Redox indicator
Resazurin colour indicating few bacteria
Resazurin colour indicating few bacteria
Blue (high oxygen levels)
Resazurin colour indicating high bacterial activity
Resazurin colour indicating high bacterial activity
White or colourless (severe oxygen depletion)