Abstract
Alkyl polyglucosides (APGs) are a perfect amphiphilic structure, with excellent surface activity and solubility feature. The aim of this study is to develop a simple system, with a relatively low emulsifier content, composed of materials mainly naturally based and with no additional fatty alcohol. Hydroxystearyl alcohol and Hydroxystearyl glucoside, prepared with Jojoba and Hazelnut oil, medium chain triglycerides with or without Xylitylglucoside and Anhydroxylitol and Xylitol, have been investigated by using microscopy, rheology, thermal analysis, pH and conductimetry. Cyclic stress and in vivo skin irritation tests were also conducted. The investigated natural APG emulsifier has a capacity to form simple and stable emulsions of desirable rheological profile with improved hydration potential and to renew damaged skin, thus it can be safely applied as stabilizer in cosmetic and prospective pharmaceutical cream-bases.
Kurzfassung
Alkylpolyglucoside (APGs) besitzen eine ausgezeichnete amphiphile Struktur, eine hervorragende Oberflächenaktivität und Löslichkeit. Das Ziel dieser Untersuchung ist die Entwicklung eines einfachen Systems mit einem relativ geringen Emulgatorgehalt, das hauptsächlich aus natürlichen Materialien besteht und keinen zusätzlichen Fettalkohol enthält. Hydroxystearylalkohol und Hydroxystearylglucosid, die aus Jojoba- und Haselnussöl, mittellangen Triglyzeriden mit und ohne Xylitylglucosid und Anhydroxylitol und Xylitol hergestellt wurden, wurden mittels Mikroskopie, Rheologie, thermischer Analyse, pH- und Leitfähigkeitsmessungen untersucht. Zyklische Beanspruchungsprüfungen und in vivo-Hautschädigungtests wurden ebenfalls durchgeführt. Der untersuchte natürliche APG-Emulgator ist fähig, einfache und stabile Emulsionen mit einem erwünschten rheologischen Profil und verbesserter Feuchtigkeitszufuhr zu bilden und die geschädigte Haut zu erneuern. Daher kann er als Stabilisator in kosmetischen und möglichen pharmazeutischen Creme-Grundlagen sicher verwendet werden.
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