Protein - Nutrition - Chpt 4

Composition of Protein

• Carbon

• Hydrogen

• Oxygen

• Nitrogen (essential for growth)

Essential Amino Acids

• Not made in the body

• Are important to eat

Non-Essential Amino Acids

• Are made in the body

• Not as important to eat in foods

What is Protein Made Up Of ??

Chains of amino acids linked together by peptide links

HBV

• High Biological Value

• Protein foods that have all of the essential amino acids

Examples of HBV Foods

• Meat

• Cheese

• Milk

• Eggs

LBV

• Low Biological Value

• Protein foods that are low or missing important amino acids

Examples of LBV Foods

• Beans

• Peas

• Rice

• Nuts

Function of Protein

• Growth and repair

• Builds new cells

• Hormones, antibodies, enzymes

Coagulation of Protein

When protein changes from a liquid to a soild and changes colour

RI of Protein (Reference Intake)

0.75kg per kg of body weight