Kojic acid-amino acid amide metal complexes and their melanogenesis inhibitory activities
作者:Seon-Yeong Kwak、Hye-Ryung Choi、Kyoung-Chan Park、Yoon-Sik Lee
DOI:10.1002/psc.1404
日期:2011.12
and prevent enzymatic browning in food. Previously, we reported that kojic acid–amino acid amide (KA‐AA‐NH2) showed enhanced tyrosinase inhibitory activity compared with kojic acid alone, but this was not observed in a cell test because of poor cell permeability. To enhance cell permeability, we prepared copper and zinc complexes of KA‐AA‐NH2 and characterized them using FT‐IR spectroscopy, ESI‐MS
酪氨酸酶通过催化底物的氧化在黑色素合成途径的早期发挥关键作用。因此,已经在化妆品和食品工业中对酪氨酸酶抑制剂进行了深入研究,以开发色素不足剂并防止食品中的酶促褐变。以前,我们报道了曲酸-氨基酸酰胺(KA-AA-NH 2)与单独的曲酸相比显示出增强的酪氨酸酶抑制活性,但由于细胞通透性差,在细胞试验中未观察到。为了提高细胞通透性,我们制备了KA‐AA‐NH 2的铜和锌配合物,并使用FT‐IR光谱,ESI‐MS光谱和电感耦合等离子体分析对其进行了表征。然后我们证明KA‐AA‐NH 2铜配合物在Mel-Ab细胞中表现出黑色素生成抑制活性。版权所有©2011欧洲肽协会和John Wiley&Sons,Ltd.。