Food Tst Flashcards
1
Q
What does Benedict’s test for
A
Glucose/sugars
2
Q
Benedict’s method
A
Add Benedict’s solution to food in test tube
Heat in water bath to speed up reaction
3
Q
What is the colour change for Benedict’s
A
Blue—>red (very little glucose)orange green(more glucose)
semi quantitative-concentration
4
Q
What does iodine solution test for
A
Starch
5
Q
Iodine solution colour change
A
Yellow Brown—>blue black
6
Q
The biuret test tests for what
A
Proteins
7
Q
Colour change for biuret
A
Blue—>purple
8
Q
Sudan lll tests for
A
Lipids
9
Q
Positive Sudan lll result
A
Red layer
Negative turns pink
10
Q
Sudan lll test
A
Equal amounts of food +water
Add a couple drops of Sudan lll
Shake
