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    • 10. 发明专利
    • PRODUCTION OF SAIKO SAPONIN
    • JPH08242878A
    • 1996-09-24
    • JP7830895
    • 1995-03-08
    • SHISEIDO CO LTD
    • KATAGIRI CHIKAINOMATA SHINJIYOKOYAMA MINEYUKIWACHI YOJI
    • C12P19/44A61K31/70A61K36/00A61K36/23A61P1/16C12N5/00C12N5/04C12R1/91
    • PURPOSE: To obtain saiko saponin having a hepatic damage-improving action, etc., useful as a galenical ingredient, etc., in a short time in a largely increased yield by culturing the tissue-cultured root of a plant belonging to the genus Bupleurum in a culture medium containing an organic acid salt. CONSTITUTION: A method for producing siaiko saponin comprises wrapping the seed of a Bupleurum plant (e.g. Bupleurum falcatum) with a gauze, immersing the wrapped seed in 70% ethanol for 10sec. rinsing the wrapped seed with water, treating the rinsed seed with a 2% antiformin solution for 10min, immersing the treated seed in sterilized water at room temperature over a night, planting the treated seed in a culture medium, culturing and germinating the seed at 22 deg.C periodically alternately in a dark place and in a lighted place, subculturing the germinated seedling at 26 deg.C in a medium containing 3% sucrose at 26 deg.C for 12hr, cutting the roots, etc., of the aseptically grown plant, culturing the cut roots in a culture medium containing indolebutyric acid, culturing the generated callus and roots in a medium containing an organic acid salt (e.g. sodium acetate), lyophilizing the cultured product, grinding the lyophilized product with a mixer, and finally extracting the ground product with 75% ethanol containing 0.5% KOH. Thus, the objective saiko saponin is obtained in a high yield.