Anthocyanins from the Leafy Stems and Rhizomes of Zingiber mekongense andTheir Distribution in Nine Zingiberaceae and One Costaceae Species

抄録

Seven anthocyanins, i.e. delphinidin and cyanidin 3-O-glucosides, and delphinidin, cyanidin, peonidin, petunidin and malvidin 3-O-rutinosides were isolated and identified from the reddish leafy stems and rhizomes of Zingiber mekongense. In addition, the distribution of seven anthocyanins was revealed in nine Zingiberaceae species, Boesenbergia albomaculata, Hedychium flavescens, H. villosum var. kachinense, Kaempferia marginata, K. rotunda, Z. collinsii, Z. flavofusiforme, Z. ligulatum, Z. thorelii, and one Costaceae species, Costus afer by HPLC comparisons among the reddish leafy stems, leaves and/or rhizomes. Furthermore, the relationships of these species and anthocyanins were discussed with past reports.