Quaternaryammonium amphiphiles are a class of compounds with a wide range of commercial and industrial uses. In the pharmaceutical field, the most common quaternaryammonium surfactant is benzalkonium chloride (BAC), which is employed as a preservative in several topical formulations for ocular, skin, or nasal application. Despite the broad antimicrobialactivity against Gram-positive and Gram-negative
The present disclosure provides antimicrobial compounds, compositions comprising such antimicrobial compounds, and methods of their use, in particular, antibacterial compounds and antifungal compounds. In certain aspects, the antimicrobial compounds are effective against pathogens of hospital-acquired infections. In certain aspects, the antimicrobial compounds are effective against pathogens that are resistant to antibiotics. The antimicrobial compounds can be used in antibacterial compositions, antifungal compositions, antiseptic compositions and disinfectant compositions. The antimicrobial compounds can be used as adjuncts in antibacterial compositions and antifungal compositions.
PROTEINOUS EMULSIFIER, PROCESS FOR ITS PREPARATION, AND EMULSIFIED COSMETIC PREPARATION CONTAINING SAME
申请人:KANEBO, LTD.
公开号:EP0160103A1
公开(公告)日:1985-11-06
A proteinous emulsifier is obtained by reacting an amino acid ester with a hydrophilic protein in the presence of endopeptidase to bind the amino group of the amino acid ester to the carboxyl terminal of a hydrophilic protein decomposition product through an amide bond. This emulsifier has a typical surfactant structure wherein the hydrophobic amino acid ester moiety is bound to the end of the hydrophilic protein moiety. It slightly stimulates skin and shows a strong emulsifying effect and a good moisture retention, thus being extremely suitable as emulsifier for various cosmetic preparations such as creams, milky lotions, etc.