New data published in material showed that seven biowaxes had high melting points and low permeability values, and no cytotoxic or irritating activities.
“Natural waxes of plant and animal origin, such as beeswax, carnauba and candelilla, are renewable, biodegradable, non-toxic and have excellent physicochemical properties,” say scientists from the Santander Institute of Technology. I am writing. However, declining bee populations and shortages have increased the price of other natural waxes such as beeswax.
The seven biowaxes in this study were created by hydroprocessing refined and bleached African palm oil and refined palm kernel oil. Previous studies have shown that palm oil can be used as a substrate to obtain biowaxes with similar properties to beeswax and carnauba. The seven biowaxes in this study were selected from among 45 types based on the authors’ analysis. Several experiments were conducted for this study, some using beeswax and carnauba wax as controls.
The research methodology included hydrotreating palm oil and palm kernel oil and subsequently determining pH, melting point, osmotic value (or concentration), chemical composition, microbial activity, toxicity, antioxidant activity, and irritant properties. included analysis and experimentation.
Six of the biowaxes were yellow-white and solid except for one, which was liquid. PH ranged from 4.4 to 5.4. “As the natural skin surface pH is acidic with an average of 4.7, the pH obtained in BW supernatants is potentially associated with no or low risk of toxicological effects,” the authors wrote. I am writing.
It has a lower melting point than beeswax or carnauba wax and requires chemical modification or purification to achieve a higher melting point if required for the application. Penetration values were similar to beeswax.
In chemical experiments and analyses, the biowax exhibited similar vibrations to the control wax, with differences ranging from 200 to 800 nanometers. The biowaxes showed low intensity bands or no bands within this range, whereas the controls (beeswax and carnauba wax) showed absorption peaks.
No bacteria or fungi were detected in the biowax, proving that it was not cytotoxic to the studied cell lines. Both biowax and control wax had no antioxidant activity. There was no irritation when tested on mouse skin.
“The BW1 to BW7 biowaxes obtained by hydrotreating palm and palm kernel vegetable oils showed excellent physicochemical properties including intermediate hardness. may result in products with sensory properties related to extensibility,” the authors state. I have written.
“It is also worth noting that these biowaxes contain aliphatic alcohols, so their properties differ from carnauba wax and beeswax, which do not have this type of chemical family.”
sauce: material
2023, 16(12), 4402; Doi: 10.3390/ma16124402
“Palm oil-derived biowax as a promising candidate for cosmetic matrix and human medicine”
Author: LM Chaparro, et al.
