Enzymatic synthesis and characterization of galactosyl monoesters
摘要:
Enzyme-catalyzed synthesis of several fatty acyl-amino acid esters based on D-galactose, as well as their chemical evaluation, was performed. These novel galactosyl fatty acyl-amino acid monoesters were synthesized by utilizing lipase from lipozyme TL IM in tert-butanol with D-galactose and fatty acyl-amino acids as starting materials. The products were characterized by H-1 NMR, C-13 NMR and MS analysis. In addition, their primary physical properties, such as hydrophilic-lipophilic balance (HLB), critical micellar concentration (CMC), solubility in water, maximum surface excess (Gamma(max)), and minimal surface tension (A(min)) were measured. The experimental results showed that their CMC values are between 5 and 0.4 mM. The HLB values of galactosyl esters 15-17 indicate that they are useful as oil-in-water emulsions or detergents, whereas 18-22 can be employed as water-in-oil emulsifiers or wetting agents. (C) 2015 Elsevier Ltd. All rights reserved.
Utilisation d'un additif polaire dans une composition cosmétique comprenant une phase grasse liquide structurée par au moins un organogelateur pour donner à la composition un caractére thixotrope
申请人:L'OREAL
公开号:EP1264589A1
公开(公告)日:2002-12-11
L'invention concerne l'utilisation d'au moins un additif polaire ayant un paramètre de polarité δa égal ou supérieur à 7,0 (J/cm3)1/2, dans une composition cosmétique comprenant une phase grasse liquide contenant au moins une huile apolaire ou faiblement polaire ayant un paramètre de polarité δa inférieur à 7,0 (J/cm3)1/2, structurée par au moins un organogélateur moléculaire, pour conférer un caractère thixotrope à la composition.
An object of the present invention is to provide a moisturizer that can sufficiently promote the production of moisturizing-related proteins and can achieve sufficient moisturizing effect. In other words, the present invention provides a moisturizer including an acyl neutral amino acid involving an acyl group having a carbon atom number of 2 to 18 or a salt thereof, and a cosmetic including the moisturizer. The moisturizer and the cosmetic of the present invention can promote the production of one or more moisturizing-related proteins selected from the group consisting of filaggrin, involucrin, transglutaminase 1, keratin 10, and loricrin.
Moisturizers including an acyl neutral amino acid having an acyl group with a carbon atom number of 2 to 18, and salts thereof, and cosmetics containing such a moisturizer promote the production of moisturizing-related proteins, such as filaggrin, involucrin, transglutaminase 1, keratin 10, and loricrin, and provide a moisturizing effect.
Use of at least one polar additive in a cosmetic composition comprising a liquid fatty phase structured by at least one molecular organogelator, to impart a thixotropic character to the composition
申请人:L'OREAL
公开号:US20030091520A1
公开(公告)日:2003-05-15
The invention concerns the use of at least one polar additive having a polarity parameter &dgr;
a
equal to or greater than 7.0 (Jcm
3
)
½
, in a cosmetic composition containing at least one apolar or weakly polar oil having a polarity parameter &dgr;
a
less than 7.0 (J/cm
3
)
½
, structured by at least one molecular organo-gelator, to impart a thixotropic character to the composition.
本发明涉及至少一种极性添加剂的使用,这种添加剂具有极性参数&dgr;
a
等于或大于 7.0(Jcm
3
)
½
在含有至少一种极性参数为 &dgr;
a
小于 7.0 (J/cm
3
)
½
通过至少一种分子有机凝胶剂的结构,赋予组合物触变性能。
베타 아미노산 유도체를 포함하는 유중수 유화 조성물
申请人:(주)아모레퍼시픽
公开号:KR20240009111A
公开(公告)日:2024-01-22
본원에는 아미노산 유도체를 유효성분으로 포함하는 오일 점증제 및 아미노산 유도체를 포함하는 유중수 유화 조성물이 개시된다. 상기 유중수 유화 조성물은 외상에 오일 점증제로서 아미노산 유도체를 포함하여 종래 오일 점증제의 오일 점증 효과가 낮고 무거운 사용감을 유발하는 단점을 개선하는 효과가 있다. 또한, 종래 유중수 유화 조성물의 가장 큰 문제점인 제형 안정도가 낮은 문제를 개선하는 효과가 있다.