Screening of antibacterial activity of Etlingera littoralis stem extract

• Main Author: Nor Amirah, Mohd Rosli
• Format: Final Year Project Report
• Language: English; English
• Published: Universiti Malaysia Sarawak, (UNIMAS) 2018
• Subjects: Q Science (General)
• Online Access: http://ir.unimas.my/id/eprint/35033/1/Nor%20Amirah%2024%20pgs.pdf; http://ir.unimas.my/id/eprint/35033/4/Nor%20Amirah%20fulltext.pdf; http://ir.unimas.my/id/eprint/35033/

Etlingera littoralis is a common ground species of family Zingiberaceae. It is widely distribute in Asia and Pacific region. Elittoralis have various traditional use even the young shoot, flower buds and the fruits are consumed by the indigenous communities. Besides, the cores of young stems of Elittoralis which also known as `Tepus' are edible and very popular food among Dayak community in Sarawak. However, there are lack of specific research about Elittoralis stems especially on antibacterial activity. The aim of this study was to get some preliminary data by determine the antibacterial activity of Elittoralis stems. The fresh stems of E. littoralis was screened for antibacterial activity in both gram positive and gram negative bacteria. The extraction of the stems used was maceration process which involve methanol, ethanol and acetone solvent. While, the antibacterial activity was used agar well diffusion method. All extracts showed antibacterial activity except for acetone extract. The antibacterial activity of Elittoralis stems in different solvent showed different sensitivity against the test bacteria. However, the methanol extract showed the highest zone of inhibition of antibacterial activity (8.33-10.67 mm) but only in Gram-positive bacteria at 400 mg/ml concentration. Gram-positive bacteria were more sensitive compared to Gram-negative bacteria. Besides, ethanol extract showed the inhibition zone against all tested bacteria and the highest zone were at 400 mg/ml concentration with the diameter ranging from 8.33-10.00 mm. In this study, it showed the antibacterial potential on E. littoralis stems which could be use to create a new antibiotics drug.