1. Department of Chemistry, Faculty of Science; Thaksin University, Phet Kasem Road; Phatthalung, 93210 Thailand
2. Department of Food Science and Technology, Faculty of Technology and Community Development; Thaksin University, Phet Kasem Road; Phatthalung, 93210 Thailand
3. Department of Industrial Biotechnology, Faculty of Agro-Industry; Prince of Songkla University, Kanjanavanich Road; Songkhla, 90112 Thailand