I'm just posting this because the info I've been finding isn't making sense to me. I'll list my point. (p.s. this is info that I found i'm not making it up so please don't freak out on me because I dont' know something you do)
Point #1. Protein is a chain of amino acids. These amino-acid strings fold back on themselves (the way the strings fold determines the protein's chemical and biological properties). The proteins are held in place by weak bonds (non-covalent) between different parts of the amino-acid string. When you break those strings, by various methods, you are denaturing the protein.
Point #2. Denatured- Denaturing occurs when protein is exposed to high temperatures (typically over 60 degrees Celsius) or to certain chemicals that disrupt the protein structures. After this change the protein can no longer perform its biological function. (Starr and Taggart, 1987.58) This is why you should look for undenatured types of protein.
Okay, if above is true then here's where I get a little confused.
Point #3. The proteins, in its original form, are too large to be absorbed through the intestines. The body breaks them down into smaller components called amino acids. The amino acids are small enough to penetrate the intestinal wall and are absorbed into the blood stream.
Point #4. Steps of Protein Digestion
- reduce particle size to increase surface area
- reduces pH to 2-3
- disrupts hydrogen bonds & DENATURES protein
- secreted by gastric mucosa (chief cells)
- breaks down DENATURED protein
- cleavage of protein at specific AA – aromatic
- breaks peptide bonds
*following steps left out but can include if you want to see them*
Okay, according to Point #3 Proteins are broken down into amino acids and absorbed into the blood stream through the intestinal wall. Intestinal processing takes place after stomach processing, and point #4 states that the HCL in the stomach DENATURES the protein! So what I am getting from this is before you absorb any benefits from the protein it becomes denatured. Therefore leading me to ask... what is the importance of buying non-denatured protein if your stomach is going to denature it before you absorb it anyway?
Thread: Why non-denatured protein?