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Objective To study the inhibition activity of volatile oil from Mappianthus iodoies on SPC-A-1 and BEL-7402 cancer cells.Methods The volatile oil in Mappianthus iodoie was extracted by SFE-CO2.MTT assay was employed to test the antitumor effect of volatile oil from Mappianthus iodoies in two kinds of malignant tumor cell lines,with IC50 applied to evaluate the degree of inhibition activity.Results When the dose of volatile oil from Mappianthus iodoies was 200 μg/ml,the inhibition ratios of the tumor cell was in excess of 50％,the IC50 was 169.54,695.21 μg/ml respectively.Conclusion Volatile oil from Mappianthus iodoies extracted by SFE-CO2 has obvious inhibition activity on SPC-A-1 and BEL-7402 cancer cells.
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Objective To study the antitumor components from an actinomycete strain(N2010-37)of bottom mud in Zhanjiang Mangrove,South China Sea.Methods The components were isolated and purified by chromatographic techniques and recrystallization,and the structures were identified by spectral methods together with physicochemical analyses.The antitumor effects of these components were tested in vitro by MTT method.Results Three compounds were identified including two anthrones and one novel lactone.They are(3S,4R,7R,8R,9S)-3,8-dihydroxy-4,7,9-trimethyl-2,6-cyclononanediolacetone(1),2-hydroxy-l-methoxy-3-methylanthraquinone(2),and 1,6,8-thihydroxy-3-methyl-anthraquinone(3).Conclusion Compound 1 is a new compound,and compounds 1 and 3 show the favorablecytotoxic activities against human chronic granulocytic leukemia cell line K562 strain by MTT method in vitro.
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OBJECTIVE:To optimize the extraction and purification techniques of total Flavonoids in Mappianthus iodoies.METHODS: The content of total Flavonoids was determined by UV spectrophotometry. Orthogonal experiment was carried out to investigate the effects of concentration of solvent, the ratio material to liquid, time length of extraction, and frequency of extraction on extraction results of total Flavonoids from Mappianthus iodoies. Under this condition, by means of D-101 macroporous resin, the crude Flavonoids extraction was purified. RESULTS: The best extraction conditions were as follows: using 65% (V/V) ethanol as extractor with the ratio of material to liquid at 1:10,and extracting for 2.5 h/time for 3 times. The content of total Flavonoids in the refined product was above 86%. CONCLUSION: This study provided scientific basis for further research, development and utilization of Mappianthus iodoies.