Flashcards
Food Tests IGCSE
Cards in this deck (5)
- 1StarchIodine solution
Brown to dark blue - 2Glucose (reducing sugar)Benedict's Solution
Heat to 95 C
Green precipitate = small amount of glucose
Yellow = medium
Orang-Red = High concentration - 3ProteinBiuret Test
Blue ring at surface = +
If sample is shaken blue ring disappears and the solution turns purple - 4FatEthanol
Cloudy solution = + - 5Vitamin C1cm3 of DCPIP
Add dye to solution of food sample
If VIT C is present, blue colour will disappear