Lipids Flashcards
1
Q
what is the function of lipids in food?
A
condensed source of energy
source of essential fatty acids
source of fat-soluble vitamins
2
Q
what are the non-acylglycerol constituents?
A
tocopherols, sterols, pigments, tocotrienols
3
Q
what are the characteristics of fatty acids in food lipids?
A
- linear and unbranched
- saturated or unsaturated
- even number of carbon atoms
- cis configuration
4
Q
what are the types of lipid oxidation?
A
autoxidation
photooxidation
thermal oxidation
enzymatic oxidation
5
Q
what are hydroperoxides?
A
they are the primary products of oxidation
primary products have no odour or flavour
6
Q
what are the secondary products of oxidation?
A
ketones, alcohol, aldehydes
