Peptides are one of those compounds that are formed by linking many amino acids together by a bond. These compounds are called as polymers because they link with one another to form long chain-like structure. All the animals have some form of peptides inside their body. They are one of the important components of a cell structure.
A longer peptide chain becomes a protein. There are numerous researches going on about peptides and proteins and research peptides are available in the market for conducting these studies. American Science Labs is one of the sellers of research peptides. The chemistry page https://www2.chemistry.msu.edu/faculty/reusch/virttxtjml/proteins.htm has more information about distinguishing peptides, amino acids and proteins.
There are many scientific terms that come up while discussing peptides. It is very important to understand these terms for understanding the structure and composition of these peptides. A covalent bond is a term that is used for describing the link between the two molecules of amino acids. This bond is formed between the carboxyl group of the amino acids and this is what attaches the molecules together. Carboxyl is a combination of carbon, oxygen and hydrogen molecules that are bound together. It is the same bond that continues and if there are about fifty of them, it becomes a protein.
Because peptides are classified as polymers, people think that they are plastic. However, the polymer in chemical terminology means a repeated chain that is connected using covalent bonds. Now you can imagine, the more the chain, the more complex the polymer is going to become. Therefore, polymer need not necessarily indicate plastic. It is a simple chemical term for representing complex combinations.
Peptides can do many things in the body and their effect depends on the amino acids that are involved. They can regulate hormones and act as an antibiotic agent against diseases. By nature, the human body is designed to break down and use peptides. For example, when someone consumes meat, the enzymes in the intestine breaks down the protein chain for creating many peptides that can be easily digested. Sometimes, the same function also decides which ones will be excreted as well. How well the breakdown happens depends on an individual's health conditions.
Apart from this, some of the other uses of peptides include their ability to cure various skin problems. Since peptide is a component of protein, they are very effective in preventing collagen breakdown which is the major cause of many skin disorders. By applying peptides, one can stop collagen from breaking down resulting in a younger and healthier looking skin. The can also prevent aging by stopping wrinkles from appearing on the skin.
The protein and peptide difference is very large. Peptides are very small components whereas proteins are much larger. The protein components are combined into complex structures that can accommodate all the amino acids. In general, if more than fifty amino acids are involved, it is termed as a protein and anything lesser than that is classified as a peptide. We hope this article guides you in the right direction.