A new sunscreen of the cinnamate class: Synthesis and enzymatic hydrolysis evaluation of glyceryl esters of p-methoxycinnamic acid
作者:Zaida Maria Faria de Freitas、Elisabete Pereira dos Santos、João Ferreira da Rocha、Gisela Maria Dellamora-Ortiz、José Carlos Saraiva Gonçalves
DOI:10.1016/j.ejps.2005.01.018
日期:2005.5
corneum, hydrolysis rates were determined in vitro using a commercial fungal lipase from Rhizomucor miehei. Results presented herein show that the glyceryl esters have similar lambda(max) and epsilon values to sunscreens of the cinnamate class. The ester 1,3-dipalmitoyl-2-p-methoxycinnamoyl-1,2,3-propanetriol presented a 2.8 times lower hydrolysis rate by lipase, in vitro, than the commercial sunscreen
对甲氧基肉桂酸,1,3-二棕榈酰基-2-对甲氧基肉桂酰基-1,2,3-丙三醇和1,3-二辛酰基-2-对甲氧基肉桂酰基-1,2,3-丙三醇的甘油酯在试图增加直接性并减少此类防晒霜的最终不良影响。为了评估甘油酯是否可以对角质层中的脂肪酶水解具有更高的稳定性,在体外使用来自Rhizomucor miehei的商业真菌脂肪酶测定了水解速率。本文给出的结果表明,该甘油酯具有与肉桂酸酯类防晒霜相似的λ(max)和ε值。酯1,3-二棕榈酰基-2-对甲氧基肉桂酰基-1,2,3-丙三醇在体外的脂肪酶水解速率比市售防晒霜2-乙基己基-对甲氧基肉桂酸酯(烷基酯)低2.8倍。