Naresuan University Journal: Science and Technology 2019; (27)1 Raji, Z., Khodaiyana, F., Rezaei, K., Kiani, H., & Hosseini, S. S. (2017). Extraction optimization and Plant Diversity and Utilization of Medicinal Plants by Traditional Healers physicochemical properties of pectin from melon peel. International Journal of Biological Natenapa Rattanapotanan Macromolecules, 98, 709–716. http://doi.org/10.1016/j.ijbiomac.2017.01.146 Ross, P. J. (1996). Taguchi Techniques for Quality Engineering: Loss Function, Orthogonal Experiments, Parameter and Tolerance Design (2nd ed.). New York, NY: McGraw-Hill. Department of Environmental Science, Faculty of Science and Technology, Nakhon Ratchasima Rajabhat University,30000 Corresponding author. E–mail address:
[email protected] Santos, J. D. G., Espeleta, A. F., Branco, F., & de Assis, S. A. (2013). Aqueous extraction of pectin from Received: 4 March 2018; Accepted: 24 April 2018 sisal waste. Carbohydrate Polymers, 92, 1997-2001. https://doi.org/10.1016/j.carbpol. Abstract 2012.11.089 The research was a survey of the diversity of medicinal plants in the Polsongkram Community Forest, Nonsung District, Sun, R., & Tomkinson, J. (2002). Comparative study of lignins isolated by alkali and ultrasound-assisted Nakhon Ratchasima, in tandem with a qualitative research program to assess of these medicinal plants and products, conducted alkali extractions from wheat straw. Ultrasonics Sonochemistry, 9, 85–93. https://doi.org/ by interviewing local medicinal healers. 10.1016/S1350-4177(01)00106-7 The diversity survey was carried out in 2015 and 2016, resulting in the identification of 18 species and 21 families of medicinal plants in the Polsongkram Community Forest, with 23 different medicinal plants identified, mostly in the family Thakur, B.