Whey Protein Isolate – Body Fortress Whey Protein
By Aditya Palav
Whey protein Isolate (WPI) contains as much as 90% protein. Whey protein is processed very carefully to remove lactose and fat without losing its natural conformational state. Scientifically it is proven that natural un-denatured state of protein is must for its anti cancer and immune stimulating activity. WPI contains greater than 90% of the protein and less of lactose than whey protein concentrate and virtually no fats.
So it very clear from above description that percentage of protein doesn’t always mean the protein is good.So WPI is not always the good choice but many companies specially many protein dealers in India push their WPI brands as holy grail of whey.
There are two methods for manufacturing the WPI:
1) Ion exchange
2) Micro Filtered
Ion Exchange WPI
This type of whey protein Isolate is made by taking a concentrate and running it through ion exchange column. There are many negative points for this method. Many of the micro-sub fractions which are helpful for the immune system and hormones are removed in this process. I can easily say that micro sub-fractions makes whey protein unique in itself. This makes Ion exchange method very poor choice for making WPI though it increases percentage of whey protein to as much as 90%.
So In my view Ion exchange whey protein Isolate is not worth it if you consider pros and cons of this method. If your concerned only about percentage then this method is good for you but if you are person who looks up to the nutritional value of a product then certainly this type of WPI is not for you.
Cross Flow Micro Filtered WPI
There many developments in the field of proteins. So recent methods for manufacturing WPI are Cross Flow Micro Filtration, Ultra Filtration, Micro Filtration, Reverse Osmosis, Dynamic Membrane filtration, Ion exchange chromatography, Electro Ultra filtration, Radial Flow Chromatography and nano filtration. Now technology is developed in such way that manufacturers can now make very high grade WPIs with retaining many micro sub-fractions.
Nowadays Cross Flow Micro Filtration is commonly used term for all the ways of processing Whey. In this method very very low temperature micro filtration technique is used so that allows for the production of very high protein contains and retention of very important sub-fractions and virtually no un-denatured proteins. In this method no chemicals are used. For this CFM method high tech ceramic filters are used where as in ion exchange method involves the use of chemical regents such as hydrochloric acid and sodium hydroxide. Micro Filtered whey protein contains high amounts of calcium and low amounts of sodium.
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