Topic 1 - Food Calorimetry

Question 1

What’s the test for starch?

Answer 1

add few drops of iodine to food
turns from orange to blue/black

Question 2

What’s the test for glucose?

Answer 2

add water to food sample then add equal part of Benedict’s solution, mix and place in water bath
goes from blue to orange/green/red

Question 3

What’s the test for protein?

Answer 3

add water to food sample and then add Biuret solution
goes from blue to purple

Question 4

What’s the test for lipids

Answer 4

add ethanol to food sample, shake, wait to settle
goes from clear to cloudy