Journal of Medicinal Plants Research Vol. 6(12), pp. 2256-2260, 30 March, 2012 Available online at http://www.academicjournals.org/JMPR DOI: 10.5897/JMPR10.233 ISSN 1996-0875 ©2012 Academic Journals
Full Length Research Paper
Morphological, phytochemical, and anti-bacterial properties of wild and indigenous plant (Amorphophallus commutatus) Arjun R. Krishna1, Asis Singh1, V. Abdul Jaleel2, Sreena Raj1, S. Karthikeyan1 and K. M Gothandam1* 2
School of Bio Sciences and Technology, VIT University, Vellore, Tamil Nadu-632014, India. Department of P.G studies and Research in Botany, Sir Syed College, Thaliparamba, Kannur, Kerala-670142, India. Accepted 20 April, 2012
This study was undertaken to investigate the phytochemical and anti-bacterial properties of Amorphophallus commutatus var. wynadensis tubers using solvents of increasing polarity (viz: petroleum ether, hexane, and water). The chemical constituents of various extracts were obtained by the phytochemical analysis. For the anti-bacterial studies, both gram positive bacteria (Streptococcus pyogenes, Streptococcus faecalis and Bacillus cereus) and gram negative bacteria (Enterobacter aerogenes, Escherichia coli, Salmonella typhi, and Proteus mirabilis) were used. Among the various extracts, the petroleum ether extract (PEE) showed maximum zone of Inhibition (ZOI) against S. typhi and P. mirabilis with ZOI as 35 and 34 mm, respectively. The morphological aspects of A. commutatus are also present. Key words: Amorphophallus commutatus var. wynadensis, tuber, phytochemical analysis, anti-bacterial activity, petroleum ether extract, zone of inhibition.
INTRODUCTION From time immemorial, traditional medicinal plants have been used as various types of active principles. WHO has estimated that 70% of the world population is dependent on traditional herbal medicines. Out of the total 225000 plants species, only less than 10% have been studied so far for their medicinal properties (Widjaja and Lester, 1978; Kelmanson et al., 2000). India has rich floral diversity of herbal plants and the traditional medical system which is several hundred years old. Medicinal plants attribute for physiologically active properties for the treatment of numerous ailments (Adebanjo et al., 1983; Natarajan et al., 2005). In tropical and subtropical Asia, the genus Amorphophallus has been used as a food source and as a traditional medicine for centuries. They are perennial plants with a highly dissected umbrellashaped leaf blade and an underground stem in the form of a corm (Chua et al., 2010). Nine species of Amorphophallus, that is, Amorphophallus corrugatus N.E.Br.; Amorphophallus yunnanensis Engl.; Amorphophallus albus P. Y. Liu and J. F. Chen; Amorphophallus kachinensis Engl. and Gehrm.; Amorphophallus krausei Engl.; Amorphophallus konjac K. Koch ex N.E.Br.; Amorphophallus paeoniifolius (Dennst.) Nicolson; Amorphophallus yuloensis H. Li; and Amorphophallus nanus H. Li and C.L. long have been reported and used as medicine, fodder, food, and for wine production (Liu, 2004). In India, Amorphophallus commutatus Engl. belonging to the family Araceae is found to be distributed in the regions of Kerala, Karnataka, Maharashtra and Gujarat. It is commonly known as sherla, ujomut, vajramuth, and is one of the red listed medicinal plants of the south India. Its tuberous corms are reported to be used for treatment of piles, cysts and tumors (Ravikumar and Ved, 2004). It is also used as cure for snake bite by tribal folks living in villages of Sitamata wildlife, sanctuary, Rajasthan, India (Jain et al., 2005; Kavitha et al., 2011). The morphology and taxonomy of A. commutatus has been studied by Sivadasan and Abdul Jaleel (2002), but its medicinal
*Corresponding author. E-mail: email@example.com.
for 24 h at 37°C prior to use.
Preparation of extracts The tuber corms were properly washed followed by surface sterilization using 1% of sodium hypochlorite (Maina et al., 2010). The...
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