| dc.description.abstract | The purpose of this study was to optimize the extraction yield from Opuntia cochenillifera
cladodes, as well as apply the extract to a facial mask formulation. The cladodes were
extracted by the ultrasound-assisted method using aqueous ethanol. The highest yield
24.45 % was obtained by using a solvent with 60 % ethanol concentration at 50 °C for 30
min as an optimal condition. The antioxidant capabilities of the extract with the highest
yield were evaluated. Sequentially, the total phenolic and flavonoid content and the IC50
were 32.42 ± 0.75 mg GAE/g, 24.84 ± 0.94 mg QE/g, and 45.27 ± 1.03 μg/mL
respectively. To evaluate the facial mask formulation, general characteristics, thermal
stability, and hydration level were assessed. The facial mask did not irritate all volunteers
and the aerobic microbial count was below 1000 CFU/g, indicating the safety of the
product. The thermal stability test suggested the shelf-life of the facial mask could be at
least 12 days in the refrigerator. The skin hydration level was 48 arbitrary units. The result
observed suggested that the Opuntia cochenillifera cladodes extract is a promising
moisturizing agent for cosmetic formulation. | en_US |
