S. Saensouk, B. Phookabhin, N. Muangsan, T. Chumroenphat and P. Saensouk
1Walai Rukhavej Botanical Research Institute, Mahasarakham University, Mahasarakham, Thailand 2Department of Biology, Faculty of Science, Mahasarakham University, Mahasarakham, Thailand
3School of Biology, Institute of Science, Suranaree University of Technology, Nakhonratchasima, Thailand
4Laboratory Equipment Center, Division of Research Facilitation and Dissemination, Mahasarakham University, Mahasarakham, Thailand
5Diversity of Family Zingiberaceae and Vascular Plant for Its Applications Research Unit, Mahasarakham University, Mahasarakham, Thailand.