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Effect of Antioxidant, Antimutagenicity and Anticancer of Root Extract from Ixeris dentata Nakai  

Kim, Myong-Jo (Division of Applied Plant Science, College of Agriculture and Life Science, Kangwon National University)
Kim, Ju-Sung (Division of Applied Plant Science, College of Agriculture and Life Science, Kangwon National University)
Jeong, Dong-Myong (Institute of Wonkwang Biomedical Eng. Research, Wonkwang University)
Ham, Seung-Shi (School of Biotechnology and Bioengineering, Kangwon National University)
Yu, Chang-Yeon (Division of Applied Plant Science, College of Agriculture and Life Science, Kangwon National University)
Publication Information
Korean Journal of Medicinal Crop Science / v.10, no.3, 2002 , pp. 222-229 More about this Journal
Abstract
Ixeris dentata root were extracted with methanol and then fractionated with n-hexane, EtOAc and BuOH to get active fractions. and their antioxidant and antimicrobial activities in each fraction were determined. Ethyl acetate fraction of Ixeris dentata root showed strong antioxidant activities, but aqueous fraction did not show any activities. But in the antimicrobial test, aqueous fraction showed strong antimicrobial activities except to Escherichia coli. especially, aqueous fraction showed the strongest activities against Hypocrea nigricans. and butanol fraction showed the strongest activities against Cladosporium herbarum. This study was performed to determine the antimutagenic and cytotoxic effect of Ixeris dentata root methanol extract on Salmonella typhimurium TA98, TA100 and cancer cell lines using ames test and cytotoxicity assay, respectively. Cancer cell lines include human lung carcinoma(A549), human breast adenocarcinoma(MCF-7) and human hepatocellular carcinoma (Hep 3B). Futher fractionations with hexane, ethyl acetate, butanol and water from methanol extract of Ixeris dentata root were performed to obtain effective fraction, methanol extracts showed 79.94% inhibitory effect on the mutagenesis induced by N' -methyl- N' -nitro-N-nitrosoguanidine(MNNG) against TA100, while 89.99% inhibition was observed on the mutagenesis induced by 4-nitroquinoline-1-oxide(4NQO) against TA98. In the meanwhile, butanol fraction showed 89.92% and 71.01% inhibitory effect on the mutagenesis induced by benzo(a)pyrene(B(a)P) against TA98 and TA100, respectively. Ethyl acetate fraction showed the strongest effect against A549, MCF-7 and Hep3B at the same concentration compared to those of other fration.
Keywords
Ixeris dentata; antimutagenic; MNNG; 4NQO; B(a)P; Trp-P-1; Salmonella typhimurium;
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