Journal
MOLECULES
Volume 26, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/molecules26092425
Keywords
antioxidant and antimicrobial properties; clove essential oil; mechanical and wetting properties; cosmetic lipidic matrixes
Funding
- Colciencias [755-2017]
- committee for the development of research (CODI) of University of Antioquia and its Sustainability Strategy Program (2018-2019)
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The study evaluated the properties of matrices produced with different natural waxes and clove essential oil, finding that the chemical composition of the waxes had an impact on the properties of the matrices. Some matrices exhibited good antioxidant and antimicrobial properties, showing potential for topical applications.
Clove essential oil (CEO) is known for having excellent antioxidant and antimicrobial properties, but the poor stability of its components to light and temperature compromise this activity. The aim of this study is to evaluate the textural, antioxidant, antimicrobial and microstructural properties of matrixes produced with representative natural waxes and CEO. Thus, waxy emulsifiers, such as beeswax, candelilla wax, carnauba wax, and ozokerite wax, were employed to create such matrixes. The thermal, microstructural, textural, wetting, antioxidant, antimicrobial and infrared characteristics of the matrixes were then studied. The diverse chemical composition (long-chain wax esters in carnauba wax and short-chain fatty acids and hydrocarbons in beeswax and ozokerite wax, respectively) explained the differences in wetting, texture, melting, and crystallization characteristics. Crystal forms of these matrix systems varied from grainy, oval, to needle-like shape, but keeping an orthorhombic allomorph. The alignment and reorganization of beeswax and ozokerite wax into needle-like crystals increased the matrix strength and adhesion force compared to those of carnauba and candelilla matrixes, which showed weak strength and grainy morphology. The former two waxes and their matrixes also showed the largest plasticity. These lipidic matrixes show potential use for topical applications having acceptable antioxidant and textural properties.
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