暖地性藥用植物タマサキツヾラフジの塊根生長中の成分変化

概要

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Special alkaloid contained in starchy tuberous roots (11-16% starch) of the plant, proved to amount to about 0.3% (in av. of whole fresh wt., and larger in skinny than in fleshy part) at its harvest-period (fall). In general the alkaloid content was found to increase gradually as the subterranean organs developed, whereas, in relatively earlier period (summer), especially in old fleshy roots, it showed a little decrease (on the basis of dry wt.). On the contrary, ash and potassium, being a main const. It could be, however, estimated that the alkaloid content of a mature plant is in rough proportion to nearly 10% of 80% alcohol-extract content and approx. 30% that of ash, respectively. Some trials were found to bring no remarkable result on correlations among potassium, starch and alkaloid.
神戸大学の論文