Abstract:
In the present work, properties and stability of commercial lutein were examined. In addition, increment of liposome stability by entrapping in liposome was also studied. The results showed that lutein can be mostly soluble in C12-15 alkyl benzoate and had ability to absorb wavelength at 445 nm. The lutein providedIC50value of 301.03±0.20μg/ml as determined byDPPH radical scavenging activity. However, it had instability under the all accelerated conditions including heating/cooling cycle for 4 cycles, as well as ambient temperature with and without light, 4C and 45C for 30 days. It can be clearly observed that the room temperature with lightand45C mostly affected the fade of color, indicating instability of lutein. This indicated sensitivity on light and heat of lutein. An attempt to increasing stability of liposome was further carried outand the results revealed that lutein can be entrapped by liposome. The highest efficiency (86%) of loading was accomplished in the presence of 0.5% w/v lutein solution. Stability test of lutein-loaded liposomes revealed that they were stable under the all accelerated conditions. Therefore, it can be concluded that lutein-loaded liposome had more stable and could be potential to be used as active ingredient in cosmetic products.