What are six types of lipids?

Answer 1

Dietary Forms with Type Description

1-Fatty Acid

Hydrocarbon chain with carboxylic acid

2-Saturated

· Has maximum number of hydrogens on the carbon chain

· Solid at room temperature

· High melting point

· Found in meats, poultry, and dairy foods; coconut and palm oils

3-Trans

· Product of hydrogenation which increases the saturation of fatty acids within oils and converts natural cis to trans configuration

· Consist of straighter chains than natural unsaturated fatty acids

· Industrial process that chemically transforms a low melting point oil into a solid fat with a higher melting point to enhance product taste, stability and shelf life.

· Found in commercially fried foods, commercial baked goods and snacks, margarine, and vegetable shortenings

4-Monounsaturated

· Contain one double bond

· Liquid at room temperature.

· Found in olive, peanut and canola oils; nuts, avocados, and olives.

5-Polyunsaturated

· Contain two or more double bonds

· Liquid at room temperature.

· Found in corn, soybean, safflower and sunflower seed oils, and fish.

· w (omega) 3 FATTY ACIDS:

1) Linolenic acid (18:3w3)

2) Eicosapentaenoic acid (20:5w3)

3) Docosahexaenoic acid (22:6w3)

· w (omega) 6 FATTY ACIDS

1) Linoleic acid (18:2w6)

2) Arachidonic fatty acid (20:4w6)

· ESSENTIAL FATTY ACIDS (must be obtained from the diet)

1) Linoleic acid (18:2w6)

2) Linolenic acid (18:3w3)

6-Triglycerides

· Neutral esters of glycerol and fatty acids

· Most contain different types of fatty acids (mixed)

· Most common form of dietary fats and oils

Answer 2

* Fatty acyls * Glycerolipids * Glycerophospholipids * Sphingolipids * Sterol lipids * Prenol lipids * Saccharolipids * Polyketides