Question
Briefly discuss the factors influencing lipid oxidation.
Answer :
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Lipid oxidation is one of the major causes of quality deterioration in foods containing fats and oils. It leads to rancidity, off-flavours, nutrient loss, discoloration, and reduced shelf life. Several factors influence the rate and extent of lipid oxidation. The degree of unsaturation of fatty acids is the most important factor. Lipids containing polyunsaturated fatty acids oxidize much faster than saturated fats because double bonds are more susceptible to attack by oxygen. Oxygen availability greatly affects oxidation. Greater exposure to air increases the rate of oxidation, while vacuum
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