Wild bitter melon (Momordica charantia var. abbreviata Ser.) is a type of vine that grows wildly in the mountains and plains in Vietnam. The main use parts of the tree are fruit, stem, and leaf that can be eaten as vegetables. This study aims to (1) identify several bioactive chemical compounds in the stems and leaves of bitter melon trees in the forests in the district of Mang Yang, Gia Lai province; (2) evaluate the nutrient composition, antioxidant activity, and antimicrobial ability of fresh juice and extract with ethanol 70°. The results indicated that fresh juice and ethanol 70° extract currently inhibited the growth of experimental strains of microorganisms, in which ethanol 70o extract gives the highest antimicrobial effect. The qualitative results determined that the chemical components of wide bitter melon consist of flavonoids, saponins, tannins, free reducing sugar, organic acids, starch, and fatty acids as the basis for the standardization of exploitation of medicinal resources this material.
momordica charantia, antioxidant activity, antimicrobial ability.
[1]. The Plant List, Momordica charantia var. abbreviata Ser.. http://www.theplantlist.org/tpl1.1/record/kew-2871084
[2]. D. H. Bich, D.X. Chung, “Medicinal plants and medicinal animals in Vietnam”. Hanoi: Science and Technology Publisher, vol 1, 2004.
[3]. N. V. Dan, N. V. Tuu, “Chemical research methods of medicinal plants”. Hanoi: Medical Publisher, 1985.
[4]. N. V. Mui, “Practicing biochemistry”. Hanoi: Science and Technology Publisher, 2001.
[5]. Fu, L., Xu, B.-T., Xu, X.-R., Gan, R.-Y., Zhang, Y., Xia, E.- Q. &Li, H.-B., “Antioxidant capacities and total phenolic contents of 62 fruits,” Food Chemistry, vol.129, no. 2, pp. 345-350, 2011.
[6]. M. Balouiri, M. Sadiki and S. Ibnsouda, “Methods for in vitro evaluating antimicrobial activity: A review,” Journal of Pharmaceutical Analysis, vol. 6, pp. 71-79, 2016.
[7]. N. Celikel và G. Kavas, “Antimicrobial Properties of Some Essential Oils against Some Pathogenic Microorganisms,” Czech Journal of Food Sciences, vol. 26, no. 3, pp. 174-181.
[8]. Tsung-Hsien Tsai, Ching-Jang Huang, Wen-Huey Wu, Wen-Cheng Huang, Jong-Ho Chyuan and Po-Jung Tsai, “Antioxidant, cell-protective, and anti-melanogenic activities of leaf extracts from wild bitter melon (Momordica charantia Linn. var. abbreviata Ser.) cultivars,” Botanical StudiesAn International Journal, 2014.
[9]. V. T. M. Huong, “Biochemical compositions and the antibacterial activity of extract form (Cassia alata L.)”, The Journal of Science, Hue University, vol.52, pp. 45-52, 2009.