[article]
| Titre : |
Sustainable, functional amino acid ingredients |
| Type de document : |
texte imprimé |
| Auteurs : |
Naoaki Ikeda, Auteur |
| Année de publication : |
2024 |
| Article en page(s) : |
p. 42-46 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Acides aminés Les acides aminés (ou aminoacides) sont une classe de composés chimiques possédant deux groupes fonctionnels : à la fois un groupe carboxyle –COOH et un groupe amine –NH2. Parmi ceux-ci, les acides α-aminés se définissent par le fait que leur groupe amine est lié à l'atome de carbone adjacent au groupe acide carboxylique (le carbone α), ce qui leur confère la structure générique H2N–CHR–COOH, où R représente la chaîne latérale, qui identifie l'acide α-aminé.
Les acides α-aminés jouent un rôle fondamental en biochimie comme constituants élémentaires des protéines : ils polymérisent en formant des liaisons peptidiques qui aboutissent à de longues chaînes macromoléculaires appelées peptides.
Cosmétiques
Humectants
Ingrédients cosmétiques
Matériaux -- Propriétés fonctionnelles
Peau -- Soins et hygiène
Poudres -- Emploi en cosmétologie
|
| Index. décimale : |
668.5 Parfums et cosmétiques |
| Résumé : |
Amino acids are important substances for human as basic molecules constituting proteins and are also important for industrial substances because of the various physiological functions and physicochemical properties of each amino acid.
Amino acids are widely used in various industries, including foods, supplements, medicines, feed, and personal care products.
In personal care products particularly, amino acids are known as the main components of natural moisturizing factor (NMF), which has the function of retaining water in the stratum corneum to maintain healthy skin. The constituent components of NMF are low molecular weight molecules such as amino acids, pyrrolidone carboxylic acid (and its salts), urea, mineral salts, and organic acids (and its salts), with the majority being amino acids and their derivatives.
Amino acids in the stratum corneum are primarily derived from profilaggrin, a protein produced in the granular layer of the skin. Profilaggrin is transferred to stratum corneum cells following epidermal turnover and then converted to filaggrin. It is further broken down into amino acids, some of which undergo metabolism and function as NMF within the stratum corneum.
When the amount of NMF contained in the stratum corneum decreases, the moisturizing function of the stratum corneum decreases, hence the concept of replenishing NMF components to dry skin is helpful. In fact, when measuring the content of each NMF component in the stratum corneum, it has been reported that when NMF components are applied externally, amino acids and amino acid derivatives penetrate into the stratum corneum and improve moisture retention.
In this article, we will introduce humectants and functional powders. |
| Note de contenu : |
- Pyrrolidone carboxylate
- Pyrrolidone carboxylic acid sodium salt (PCA Na)
- Pyrrolidone carboxylic acid zinc salt (PCA Zn)
- Amino acid mix combining fermentation-derived amino acids
- Lauroyl lysine based composite powder with high biodegradability |
| En ligne : |
https://drive.google.com/file/d/1Rr1rSmSepJx_l2udvgN-NoI65oswCeN0/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41241 |
in GLOBAL PERSONAL CARE > Vol. 25, N° 6 (06/2024) . - p. 42-46
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