Anusorn Cherdthong, PhD137748 Applied Biochemistry in Nutritional Science

Email: anusornc@kku.ac.thE-learning: http://ags.kku.ac.th/eLearning/137748

Lipids and Fatty Acids

Lipid

nonpolar

hydrophobic

Characteristics of Lipids 

NonpolarLargely hydrophobic. (hydrophobic) insoluble in water but soluble in non-polar organic solvents (such as hexane or ethanol application).

Important component of the cell membrane (cell membrane).

The nutrients. Provide energy source to the body.

The soluble vitamins. Fat soluble such as Vitamin A, D, E and K.

Characteristics of Lipids 

Lipids (lipid) are organic compound composed of carbon, hydrogen, oxygen, essentially.

Characteristics of Lipids 

OpenStax College (2013)

Amphiphile structure

Characteristics of Lipids 

OpenStax College (2013)

Bilayer

Chemistical process of lipid

SaponificationHalogenationHydrogenationRacidity

Classification of lipid

simple compound miscel

Fat, oil

Wax

PhospholipidGlycolipid

Lipoprotein

Sterol

Terpene

Icosanoid

derivative

Fatty acid

Glycerol

Characteristics of fatty acid

Consisted of carboxyl and hydrocarbon

Depend on hydrocarbon chainCell membrane fond unsaturated FAUnsaturated FA:CissTran Addition halogen group

Ciss and trans structure

OpenStax College (2013)

Classification of fatty acid

Saturated fatty acidsUnsaturated fatty acidsMonounsaturated fatty acidsPolyunsaturated fatty acids)Eicosanoids ProstanoidsLeukotrienes

Classification of fatty acid

Non- essential fatty acidPlamatic, strearic acidsEssential fatty acidOmega-3 fatty acid

linolenic acidEicosapentaenoic acid Docosahesaenoic acid 

Omega-6 fatty acidlinoleic acid arachidonic acid

Base on requirement

Relation between FA

McDonald et al. (2011)

Micelle

Nelson and Cox (2000)

Acylglyceride

MonoacylglycerideDiacylglycerideTriacylglyceride

Role of lipid and FA

Energy sourceVitamin solubleNutrient storagePrevent heat Structure cell membraneSubstance of vitamin and hormoneBlood clottingEmulsifying agents

Conclusion

1

2

3

Characteristics of Lipids 

3 Role of lipid and FA

Classification of lipid

Classification of FA

Thank you!