There are two main components of milk protein:
- Casein
- Whey Protein
During the processing of whey protein, fat and lactose (milk
sugar) are filtered out to make a lower fat, lower carbohydrate, and higher
protein powder. The higher the protein content per gram basis, the more
processing (filtering) is needed. When a whey protein count is greater than 85%
in protein concentration, it is considered to be a WPI (whey protein isolate).
Less than 85% and it is considered to be a WPC (whey protein concentrate).
The two main methods used to process whey protein into whey
protein isolate are:
- Ion Exchange/Cation Exchange
- Micro-filtration/Ultra-Filtration
Ion Exchange/Cation Exchange
This process is based on separating proteins on their electrical
charge. The chemicals hydrochloric acid (battery acid) and sodium
hydroxide (salt water) are used in this process. Ion exchange
processing only costs ¼ as much as micro and ultra-filtration processing; this
is why so many supplement brands choose to use ion exchange WPI in their
formulas. Unfortunately through the process of Ion exchange, many of the
protein fractions essential for digestion and absorption are damaged. Ion exchange proteins are marketed well due
to their higher protein and lower fat content.
Micro-filtration/Ultra-filtration
The other type of processing method is called micro-filtration and
or ultra-filtration. During this process whey protein flows over membranes
which contain ceramic filters. This is where the whey protein is separated from
the raw protein solution. Undesirable components are also filtered out
including fat & lactose. No heat or electricity is used so no harm is done
to the protein on a sub molecular level.
The advantages of using a micro/ultra-filtration method:
- Minimal denaturing of protein
- Improved protein fractions for improved digestion & absorption
- Better amino acid profile
- High in immune system boosting components
- More calcium and less sodium
In summary, micro-filtered or ultra-filtered whey protein is the
best quality but comes at a more expensive price. Unfortunately price these
days seems to dictate many manufacturers choice of ingredients in pursuit for
larger profits. Quality is given a second seat.
All TSN proteins have been micro-filtered ensuring quality is
never sacrificed for profit. All available now through Healthy Life
Fitness.
Simply click on this link for
more information or to place an order:
Please note: This product is not available outside of Australia.
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