Antibacterial Properties of Derris elliptica Benth Sure Against Staphylococcus aureus and Escherichia coli

Pages: 8 (4042 words) Published: October 29, 2014

Antibacterial Properties of Derris elliptica Benth. (Opay) Against Staphylococcus aureus and Escherichia coli A Special Problem Outline Presented to
The Faculty of the Department of Biological Sciences
College of Arts and Sciences
Central Luzon State University
In Partial Fulfillment of the
Course Requirement in
Animal Physiology (Bio255)
For the Degree of
Bachelor of Science in Biology
October 2013
CHAPTER I
INTRODUCTION
Background of the study
Derris eliptica (Wallich) Benth belongs to family Fabaceae characterized as a climbing vine and are widely available in tropical regions (Akinbulumo, et al.) like Philippines. It is described by its pinnate leaves and usually oblong leaflets thriving up to 1500m above sea level. It is known as leguminous cultivated for insecticidal property from of rotenone it possessed. (Pongslip and Leelahawonge, 2009). The pounded roots of D. eliptica is considered the strongest fish-poison in the South East Asia and also used in fisheries in the Philippines. However, there was least study of its phytochemical property. Some studies reported the anti-oxidant activity of the D. eliptica (Palasuwa, et al,2005) larvicidal activity (Komalamisra, et al, 2005) and Heinz body inhibition activity (Palasuwa, et al, 2005). It has also been used in traditional medication to cure scabies and breast sickness, to stop bleeding and as a purgative. (Khan, et al, 2006) Like other legumes, D. eliptica can be nodulated by specific group of bacteria subsequently providing nitrogen for the plants and reducing the need for costly artificial fertilizer (Ponsilp and Boonkerd, 2007). Recent studies reported this plant as nitrogen-fixing symbionts legumes however the properties of D. eliptica specifically its leaves were known. Hence this study aims to examine the antimicrobial activity of D. eliptica leaves in hot water extract and ethanol extract. Review of Related Literature

The use of plant, plant extract or chemical derived from plants to treat disease is therapeutic modalities which has stood the test of time (Anwannil and Atta, 2005). Herbal medicine is more accessible to most of the population. About 60 to 85% of the populations of every country of the developing world rely on herbal or indigenous forms of medicine (Hack, 2005). According to the African Journal of Traditional Complementary and Alternative Medicines the use of herbal medicine has always been part of human culture, as some plants possess important therapeutic properties, which can be used to cure human and other animal diseases. Derris elliptica (Wallich) Benth belongs to the family Fabaceae and its common name is Tubli. It is a vine, a rambling climber, with branches covered with brown hairs. Scandent shrub or liane 5-12 m long, velvety pubescent; shoot apex often leafless for several meters mostly with 11-15 leaflets; Leaves are pinnate and 30 to 50 centimeters long. Leaflets are usually narrow oblong, rounded at base, entire, rounded to shortly acuminate, 9 to 13, rusty-velvety, somewhat glabrescent, glaucous beneath when matured smooth above, and subglaucous and silky beneath, 10 to 15 centimeters long, and about half as broad. Racemes are lax, 15 to 30 centimeters in length, with flowers usually in stalked clusters of 3 and rusty pubescent. Calyx 6-8 mm long shallowly toothed. Petals pink; standard 13-17 mm diam., with2 auricles at base, softly ferruginous-hairy outside; wings and keel with interlocking longitudinal folds. petiole 3-7 mm long Pods are 5 to 8 centimeters long and contain 1 to 3 seeds, flat and reniform, olive, brown or black. Fruit elliptic to oblong-elliptic, 3.5-7 cm long, flat, leathery, narrowly winged (Pacific Island Ecosystem at Risk). The Philippine Medicinal Plant stated that Derris elliptica (Wallich) Benth. are abundant in thickets along streams, in secondary forests at low and medium altitudes from northern Luzon to Mindanao. Also occurs in Chittagong through Malaya to New Guinea...
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