Silk amino acid

Add links
Source: Wikipedia, the free encyclopedia.

Silk amino acid (SAAs) also known as

skincare products.[3] Silk amino acids are produced by hydrolyzing (or breaking apart) silk proteins into smaller peptide
chains, typically 18 to 19 amino acids in length. Silk amino acids have a lower molecular weight than silk protein powders and are moisturizing to skin and hair.

Silk amino acids are used in formulating shampoos, conditioner, hair treatments, bodywash, body lotions, cleansers, toners and facial moisturizers, mascara, lipstick and color cosmetics.[4][5]

Background

silkworm
(Latin name: Bombyx mori).

Sericin has a high hydroxy amino acid content which is important for the water-binding capacity which regulates the skin's moisture content. It also has a unique carbohydrate moiety and a unique repetitive amino acid sequence which give it a high affinity for bonding to adhering proteins resulting in a tightening, anti-wrinkle effect. In addition, because of its high molecular weight, it leaves a substantive semi-occlusive film that persists even after washing, and can increase the skins permeability.[2]

Composition

Predominant composition of silk amino acids (by weight*):[7]

  • L-Alanine (34.36%)
  • Glycine (27.23%)
  • L-Serine (9.58%)
  • L-Valine (3.49%)
  • L-Threonine (2.00%)
  • [*SAAs contains other amino acids but only those representing >2.00% are listed due to their greater relevance]

Applications

Due to its proteinous nature, sericin is susceptible to the action of

proteolytic enzymes, making it digestible; and because of properties like its gelling ability, moisture retention capacity and skin adhesion, it has numerous medical, pharmaceutical and cosmetic applications.[citation needed
]

References

  1. ^ "Sericin". Centerchem.com. Retrieved 2012-09-20.
  2. ^ a b "Sericin" (PDF). Gerovital. Archived from the original (PDF) on 2007-04-13. Retrieved 2012-01-06.
  3. ^ Padamwar, M. N.; Pawar, A. P. (April 2004). "Silk sericin and its applications: A review" (PDF). Journal of Scientific & Industrial Research. 63: 323–329.
  4. ^ "Silk amino acids add a velvety touch to cosmetics and also helps to prevent dehydration of the skin". Dermaxine: bio-cellular skin care products. Archived from the original on 2010-01-22.
  5. ^ Henson, Melanie (2005-11-22). "Hair care: a growing market: hair care marketers get to the root of their customers' needs". Happi. Rodman Media.
  6. ^ Tsang, Gerard C. C. "Textile Exhibition: Introduction". Asian art. Retrieved 2012-10-22.
  7. ^ Shin, S.; Park, D.; Yeon, S.; et al. (2009). "Stamina-enhancing effects of silk preparations in mice". Laboratory Animal Research. 25 (2): 127–34.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Silk_amino_acid&oldid=1219524055"