Intsia palembanica wood extracts and its isolated compounds as Propionibacterium acnes lipase inhibitor
Batubara, Irmanida | Kuspradini, Harlinda | Muddathir, Ali Mahmoud | Mitsunaga, Tohru
Potential compounds from Intsia palembanica methanol extracts were isolated. Three isolated compounds as well as 7 reported compounds from Merbau were analyzed for their ability to inhibit the lipase activity of Propionibacterium acnes. Lipase was isolated from P. acnes and used as enzyme for activity analysis. The lipase activity test was performed using the 2,3-dimercapto-1-propanol tributyrate (BALB) method. The results showed that methanol extract and water fraction were active to inhibit lipase activity but n-hexane fraction and EtOAc fraction did not reach 50 % inhibition until 500 μg/ml. EtOAc fraction consisted of flavonoid, naringenin, robinetin, and (+)-epirobidanol accelerated the lipase activity. The other 7 compounds showed inhibitory activity of lipase in a concentration-dependent manner. In conclusion, fustin is the most active compound to inhibit the P. acnes lipase activity.
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