| 摘要 |
A liver protecting agent is prepd. by (a) defatting croton tiglium L. (I) with solvent, (b) extracting the defatted (I) with cold D.W. or 0.5M NaOH soln., and filtering to obtain the filtrate, (c) dissolving the obtd. filtrate with D.W., (d) ultra- filtrating the obtd. soln. to obtain the extract of (I) and (e) mixing the extract of (I) with other liver protecting agent, e.g. alpha tocopherol etc., to obtain the final product. The M.W. of the extract is 300,000 or more.
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