Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference (한국식품저장유통학회:학술대회논문집)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Isolation of Lipoxygenase Inhibitor from Indonesian Herb

  • Alfi Khatib (Department of Food Science and Technology, Kyungpook National University) ;
  • Kim, Young-Chan (Department of Food Science and Technology, Kyungpook National University) ;
  • Chung, Shin-Kyo (Department of Food Science and Technology, Kyungpook National University)
  • Published : 2003.04.01
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Abstract

A total of 20 extracts derived from different plant family commonly used in Indonesian traditional inflammation medicine were screened for their inhibitory effect on soybean lipoxygenase (SBL) and hyaluronidase (HAse) activity. Three methanol extracts, the bark of Cinnamomum burmanni (CB), the leaves of Piper betel (PB), and fruit of Barringtonia acutangula (BA) were found to have high inhibitory effects, whereas the methanol extract of the leaves of Mimusops elengi (ME) have medium inhibitory effect. The IC50 of CB, PB, BA and ME were found to be 21.7, 16.9, 39.1 and 62.8 g/$m\ell$, respectively. Among the tested extracts, only CB inhibited HAse (IC50 = 27g/$m\ell$). CB was successively fractionated with n-hexane, ethyl acetate, butanol and water. The EtOAc fraction having the strongest activity was fractionated and some compounds were isolated and purified by a preparative HPLC(Develosil ODS-HG-5 column). Coumarin and 2-hydroxy cinnamaldehyde. were identified through the analyses of UV-Vis absorption 1H-NMR, 13C-NMR and FAB+-MS spectra.

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