Inhibitors of Adipogenesis in 3T3-L1 Cells from Amomum tsao-ko
Background : The objective of this study was to Amomum tsao-ko Crevost et Lemarié, (Zingiberaceae) is widely distributed among several countries in South Asia and Southeast Asia. It is a well known spice in Asia, produces a nice refreshing effect in the mouth. Additionally, it's dried fruit is used in Traditional Chinese Medicine (TCM) for cardiac diseases, edema, eye trouble, skin, itch and impotence. The objective of this study was evaluated the inhibitory activity on adipogenesis in 3T3-L1 cells from A. tsao-ko. Methods and Results : The fruits of A. tsao-ko were extracted with 80% EtOH two times at room temperature. The EtOH extract was suspended in distilled water and partitioned with solvent to give CH2Cl2, EtOAc and n-BuOH. The CH2Cl2 was suspended in n-hexane and partitioned with solvent to give 50%, 70% and 90% MeOH. The purification of each fraction by column chromatography separation and HPLC analysis. Consequently, several constituents were isolated five known compounds. The identification and structural elucidation of compounds were established by using NMR (1D and 2D) and mass spectrometry. Conclusion : These compounds were identified as fluorenone (1), phenanthrene (2), anthracene (3), methyl linolenate (4), 1,2-benzenediol (5). All isolates were tested for their inhibitory activities on adipogenesis in 3T3-L1 cells.