Question

Explain how you could use lipase to investigate whether cow's milk contains a higher concentration of fat than goat's milk.(Remember to think of the variables you will need to control.)

Answer 1

Explanation:

Your answer :-

Lipases are enzymes that degrade fats. The major lipase in milk is lipoprotein lipase. ... Agitation during processing may bring the lipase into contact with the milk fat resulting in fat degradation and off-flavors. Pasteurization will inactivate the lipase in milk and increase shelf life.

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Extra information :- ( if needed )

Goat milk comes out on top for protein and cholesterol, but cow milk's fat content is ever so slightly lower. ... Goat milk has more calcium, potassium and vitamin A than cow milk, but cow milk has more vitamin B12, selenium and folic acid.

So why is goat's milk more easy to digest than cow's milk? This, too, is down to casein proteins—casein curd from goat's milk is usually softer than the casein curd of cow's milk—but also down to differences in the two milks' fat component [8].

Answer 2

lipase to investigate whether cow's milk contains a higher concentration of fat than goat's milk.

• This investigator states that cow's milk can be differentiated from human milk by the fact that the latter will set free butyric acid from tri-butyrin in a few minutes, while cow's milk or boiled human milk will not do so.  
• Another more recent experimental study of enzymes, which failed to demonstrate lipase in a product made from cow's milk~ was that of Thatcher and Dahlberg (11).
• The occult intestinal blood loss, which occurs in about 40% of normal infants during ,  feeding of cow’s milk.
• Loss of iron in the form of blood diminishes with age and ceases
• Cow's milk is a complex biological fluid and a nutritive food regarding human health.
• Milk fat is composed of many neutral and polar lipids and is structured as fat globules emulsified in the aqueous phase.
• The milk fat globules are surrounded by a native biological membrane composed mainly of phospholipids, proteins and enzymes, cholesterol, glycoproteins and vitamins.