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is protein powder such as Prorated whey made out of meat or soy or eggs ? how do they "squeeze" the protein out of the raw material and compress them into powder form ? also what do they do with the leftover of the raw materials ? everytime I take a whey protein drink I've always wondered how do they pack so much protein into a little scoop......
Whey Protein is form a Dairy Process :)
mooooo
whey is found in milk. supplement companies get their whey from cheese factories. whey protein is a byproduct from making cheese.
[QUOTE][i]Originally posted by protein [/i]
[B]I've always wondered how do they pack so much protein into a little scoop...... [/B][/QUOTE]
Chicken, beef, etc. is only about 22% protein by weight because it contains,
- fat
- humidity/water
- minerals
- ash
etc.
These take quite some volume and weight - hence the lower percentage of protein in animal flesh, eggs etc.
Protein powder is protein [u]isolated[/u] from most of these nutrients via filtering/chemical processes. It can hence yield between 60-90+ % protein by weight.
i.e. a small 25g scoop of powder would be about 21g of protein.
Whey is a by-product of cheese production. It's a yellowish liquid. They purify it and isolate the whey itself in the form of a poweder.
so then, if whey protein is basically just compressed(or leftover) cheese byproduct, then how do they eliminate the fat that comes with cheese ? the whey protein powder only has typically 1.5g of fat per 22g protein. That's significantly lower fat than most cheeses.
The liquid itself basically contains almost no fat - the fat is what makes the cheese itself.