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Phospholipids and Sterols (Blood Lipid Profiles (LDL Cholesterol: …
Phospholipids and Sterols
Phospholipids
It can be used as emulsifiers in food industry (e.g. lecithin)
Hydrophobic Tails & Hydrophilic Head
Food Sources
: eggs, liver, soybeans, wheatgerm and peanuts.
It
enables transport of lipids across cell
membranes.
Sterols
It’s found in plant and animal foods.
Cholesterol
is a
sterol
.
Sterols = Multiple Ring Structure.
Role of Sterols
Liver produces 800-1500mg cholesterol per day
Structural component of cell membranes
Atherosclerosis is a disease that causes heart attacks. It occurs when cholesterol forms deposits in the artery wall.
Starting material for bile acids, sex hormones, adrenal hormones and vitamin D.
Plant Sterols
It can interfere with cholesterol absorption.
Blood Lipid Profiles
LDL Cholesterol: < 2.5 mmol/L
HDL Cholesterol: > 1 mmol/L
Total Cholesterol: < 4 mmol/L
Triglycerides: < 2.0 mmol/L
It reveals the
concentrations of lipids in the blood
.