There are factors that differentiate between all three and consumption of each one of them depends on an individual’s need.
The article aims at exploring the main differences between whey protein and hydrolyzed whey protein. It would also cover some basics about whey protein isolate as well, which is intermediate to hydrolyzed whey protein.
General Description of Whey Protein
Whey protein is milk, or rather a cheese derivative – it’s obtained from the liquid made when cheese is produced. Whey is not a single protein structure – it consists of peptides and polypeptides.
Whey’s profile has some protein structures like alpha-lactalbumin, beta-lactoglobulin, IgGs, glycomacropeptides, and bovine serum albumin. The peptide profile consists of lactoferrin, lactoperoxidases, and lysozyme.
The presence of these structures is significant and that is what makes whey protein awesome! The general process of production of whey involves separation of the important peptides from the leftover solution and packs it up as a whey powder. The peptide profile exists as a rare fraction and the advancement in filtration technology ensure that the peptides are not lost.
Whey Protein Concentrate
Whey protein (WPC+WPI), typically known as whey protein concentrate due to higher levels of WPC, is the most readily available and less filtered form of whey protein. In general, the first powdery form that is obtained is known as whey protein concentrate.
Whey protein concentrate is known to have less protein concentration, ranging from 40-60 % with more lactose and fat concentration – but with the advancements in filtering technologies, companies are able to produce WPC at around 80% of protein concentration with a moderately low amount of fats and carbs.
Whey protein and whey protein concentrate are not the same. Whey protein contains a mixture of whey protein concentrate and whey protein isolate, with a ratio of around 80:20.
Whey Protein Isolate
Whey Protein Isolate is a result of multiple folds of filtration. The main aim in the processing of Whey is to take care of its peptide bonds as unfair treatment may lead to them being Denatured. On application of heat, Peptides rings tend to break and the protein loses its biological significance. Not to forget, Whey has cancer-fighting skills too.
Isolates undergo multiple filtration levels to remove lactose and fat content without losing their biological activity. The resultant is 90-95% protein content with minimal or no fats and carbs and even lactose. People who are generally lactose intolerant use whey protein isolate.