EXP 9: Test for Nutrients in Food

Iodine Test

What is the test for Starch?

Deep Blue Color

What is a positive result for the Iodine Test?

Benedict’s Test

What is the test for Glucose?

• Cupric Sulfate (CuSO4)

• Sodium Carbonate (Na2CO3)

• Sodium Citrate (Na3C6H5O7)

What are the components of Benedict’s Solution?

Yellow to Red Precipitate

What is a positive result for Benedict’s Test?

False (Benedict’s Test tests positive for any simple sugar, including glucose and fructose)

True or False: Benedict’s Test only tests positive for glucose.

Formation of a Translucent Spot

What is the test for Fats?

Ether

What is the reagent for the test for Fats?

Biuret Test

What is the test for Proteins?

• Cupric Sulfate (CuSO4)

• Sodium Hydroxide (NaOH)

What are the reagents for the test for proteins?

Formation of white powdery residue

What is a positive result for Mineral Matter?

Carr-Price Test

What is the test for Vitamin A?

• Chloroform (CHCl3)

• Antimony Trichloride (SbCl3)

What are the reagents for the Carr-Price Test for Vitamin A?

Retinol

What is another name for Vitamin A?

C20H30O

Write the molecular formula for Vitamin A.

Essential for normal vision, the immune system, reproduction, and growth and development.

What is the importance of Vitamin A?

Liebermann-Buchard Test

What is the test for the quantitative determination of cholesterol?

• Chloroform (CHCl3)

• Acetic Anhydride (CH3CO)2O

• Sulfuric Acid (H2SO4)

What are the reagents for the Liebermann-Buchard Test?

Salkowski’s Test

What is another name for the Sulfuric Acid Test?

• Chloroform (CHCl3)

• Sulfuric Acid (H2SO4)

What are the reagents of the Salkowski’s Test?

• Starch

• Glucose

Nutrients in RIPE BANANA

• Starch

Nutrients in GREEN BANANA

• Glucose

• Vitamin A

Nutrients in CARROTS

• Protein

Nutrients in EGG WHITE

• Protein

• Fats

• Cholesterol

Nutrients in EGG YOLK

• Glucose

• Fats

Nutrients in CHOCOLATE

• Starch

• Protein

• Fats

Nutrients in PEANUT BUTTER

• Starch

Nutrients in POTATO

• Starch

• Glucose

• Protein

• Fats

• Mineral Matter

Nutrients in CHEESE

• Glucose

Nutrients in FRUIT JUICE

• Protein

• Mineral Matter

Nutrients in DILIS

• Protein

• Fats

• Cholesterol

Nutrients in CHICHARON