Whey Concentrate / Isolate Blends

The most common methods today of whey protein filtration include ultra-filtration, micro-filtration, ion-exchange and cross flow micro-filtration. Ultra-filtration and micro-filtration use a low temperature process where the proteins are physically separated by filters. The ion-exchange process removes the protein through an ion-exchange column that takes advantage of the specific electronic charges of the protein, fat and lactose contained in the whey and uses opposite charges to extract each individual component. Crossflow micro-filtration uses natural, nonchemical ceramic membranes to separate the undenatured whey protein from the fat and denatured protein.

All of these processes result in a high quality whey protein, low in fat and lactose. Always be sure to check the label for which method or methods have been used, as some of the cheaper proteins may use whey proteins that have been processed by cheaper acid treatment or high temperatures and contain high levels of undenatured proteins. Undenatured proteins are unusable by the body and result in the whey having a bitter taste when consumed. A good quality protein powder will always list in the ingredients panel whether it is microfillterd, ultrafiltered or ion-exchange. If it simply lists whey protein concentrate or isolate assume that it contains a cheap form of protein.
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