黄連の史的考察(第1報) : 江戸時代に加賀黄連が良品質とされた理由

概要

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In the Edo era of Japan, of Coptidis Rhizoma, "Kaga-ohren", the rhizome of Coptis japonica Makino var. japonica Satake (Japanese name: Kikuba-ohren) of the family Ranunculaceae, produced in Kaga Prefecture, was highly evaluated. Today, however, C. japonica var. dissecta Nakai (Japanese name: Seriba-ohren), mainly cultivated in Japan, is considered superior to var. japonica in the yield and the berberine content. In this study, the qualities of Kikuba-ohren and of Seriba-ohren were compared by herbological and chemical studies. The results obtained are as follows: the rhizome of var. japonica is significantly bigger than that of var. dissecta in size, and is externally very similar to the Coptidis Rhizoma imported from China in the Edo era, which was reputed to be of the highest quality. The berberine contents in the rhizomes of the two varieties cultivated in the same habitat were almost the same, though according to some old herbal books, the rhizome of var. japonica was more bitter.
日本生薬学会の論文
1998-10-20