Asian J Beauty Cosmetol. 2014; 12(2): 169-175.
Anti-oxidant and Anti-obese Activities of Turmeric (Curcuma longa L.) Extract in 3T3-L1 Cells
ABSTRACT
Turmeric (Curcuma longa L.) has been used as a spice such as curries. Although its various biological functions including anti-allergenic, and anti-carcinogenic activities were investigated, the total phenolic content of water and ethanol turmeric extracts and correlation between phenolic content and biological functions including antioxidant and anti-adipogenic activities of turmeric are relatively unknown. Here, we prepared water and ethanol turmeric extracts (W-TE and E-TE). The total phenolic content of W-TE and E-TE were 1.64%, and 9.31%, respectively. To examine the antioxidant activities of W-TE and E-TE, DPPH assay was employed. The E-TE showed strong scavenging activity against DPPH radicals than that of W-TE. The MTT assay was employed to evaluate the cytotoxicity of E-TE on 3T3-L1 cells. The treatment of 10, 25, and 50 μg/ml E-TE for 24 h dose not affect to the 3T3-L1 cell viability. Therefore, the 10 and 50 μg/ml of E-TE were chose further experiment. We also found that the 3T3-L1 adipogenesis was dose-dependently and significantly inhibited by 10, and 50 μg/ml E-TE treatment. The 50 μg/ml of E-TE suppressed 3T3-L1 adipogenesis by 71.53% when compared to adipocytes control. Moreover, the markedly suppressed lipid droplets were observed in E-TE treated 3T3-L1 adipocytes. The evidences suggest that the E-TE has the potential as a functional ingredient in the development of functional foods and nutri-cosmetics on overweight and obesity.
Keywords :
Turmeric, Antioxidant, Adipogenesis, Obesity, 3T3-L1
