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Bioactive Milk Lipids: Lecture 12

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Questions and Answers

What is the significance of lipids in milk?

They only contribute to the nutritional value of milk

They have no significant impact on dairy products

They impart physical, organoleptic, and nutritional properties to dairy products (correct)

They are only harmful due to their content of saturated fatty acids and cholesterol

Why have nutritionists advised against consumption of milk fat?

Due to its high sugar content

As a result of its content in saturated fatty acids and cholesterol (correct)

Because it has no nutritional value

Because it does not contribute to the development of functional foods

What are some of the lipid compounds reported to be present in milk fat?

Butyric acid and conjugated linolenic acid (CLA) (correct)

Vinegar and lemon juice

Sunflower oil and canola oil

Olive oil and palm oil

What do studies focus on in order to enhance the positive effects of consuming lipid compounds in milk?

Isolation of these compounds to be used as functional ingredients Signup and view all the answers

What is the commercial application of lipid compounds found in milk fat?

To develop functional foods to promote human health and diseases prevention Signup and view all the answers

Why are many studies focused on obtaining natural enrichment dairy products?

To enhance the positive effects of consuming lipid compounds in milk Signup and view all the answers

What is the main health beneficial component of milk fat globule membrane (MFGM)?

Cholesterolemia-lowering factor Signup and view all the answers

Which type of milk has a higher percentage of medium-chain triacylglycerides (TAG) and a lower proportion of long chain TAG?

Sheep's milk Signup and view all the answers

What is the effect of triacylglycerides (TAG) comprising saturated fatty acids with 6-10 carbons?

All of the above Signup and view all the answers

Which enzyme selectively hydrolyzes triacylglycerides (TAG) at the sn-1 and sn-3 positions?

Lipase Signup and view all the answers

What is the main characteristic of the fatty acid distribution in the triacylglycerides (TAG)?

Species-specific and nonrandom distribution Signup and view all the answers

Why is the position of C16:0 in the triacylglycerides (TAG) important?

It ensures high absorbability of calcium in milk Signup and view all the answers

What is the composition of milk fat in terms of carbon atoms?

Mainly even number of carbon atoms Signup and view all the answers

What are the main components present in fat globules in milk?

(TAG), phospholipids, and glycoproteins Signup and view all the answers

What is the approximate size of fat globules in sheep milk?

$3 μm$ Signup and view all the answers

What percentage of total milk fat volume does the milk fat globule membrane (MFGM) represent?

1% Signup and view all the answers