Antibacterial and antioxidant properties of shorea sumatrana leaves / Tazkeerah Hasanah Awang Said

The timber value of Shorea sumatrana has been well known from decades. Shorea is a major exotic species found in tropical regions and they are one of the endemic plants in Malaysia. This study is aimed to evaluate the antibacterial and antioxidant properties of the methanol extract of Shorea sumatra...

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Main Author:	Awang Said, Tazkeerah Hasanah
Format:	Student Project
Language:	English
Published:	Faculty of Applied Sciences 2015
Subjects:	Extraction (Chemistry) Bacteria
Online Access:	http://ir.uitm.edu.my/id/eprint/25134/ http://ir.uitm.edu.my/id/eprint/25134/1/PPb_TAZKEERAH%20HASANAH%20AWANG%20SAID%20AS%20N%2015_5.pdf

id	uitm-25134
recordtype	eprints
spelling	uitm-251342019-08-09T02:33:37Z http://ir.uitm.edu.my/id/eprint/25134/ Antibacterial and antioxidant properties of shorea sumatrana leaves / Tazkeerah Hasanah Awang Said Awang Said, Tazkeerah Hasanah Extraction (Chemistry) Bacteria The timber value of Shorea sumatrana has been well known from decades. Shorea is a major exotic species found in tropical regions and they are one of the endemic plants in Malaysia. This study is aimed to evaluate the antibacterial and antioxidant properties of the methanol extract of Shorea sumatrana leaves. The antibacterial activity of the methanol extract of S. sumatrana was assessed against gram-positive and gram-negative bacteria by disc diffusion method. On the other hand, the antioxidant activity was detected by DPPH radical scavenging activity. In the preliminary screening experiment of antibacterial activity, all of the tested bacteria showed varying degrees of sensitivity to the leaves extracts excluding P. aeruginosa. Results obtained that S. epidermidis, a gram-positive bacterium as the most susceptible to the extracts of leaves at the applied doses. Besides, only P. aeruginosa was resistant to the extracts. My findings clearly demonstrate that the leaves extracts of S. sumatrana had strong antibacterial effects and raises the possibility of using the extracts as antibacterial agents in treating pathological conditions caused by bacteria infection. Although the effect of S. sumatrana leaves against some pathogenic bacteria in vitro is promising, further microbiological and pharmacological studies will be required. In present study, in vitro antioxidant activities of the methanolic extracts of leaves of S. sumatrana were determined by spectrophotometric methods. Antioxidant activities of extract were expressed as percentage of DPPH radical inhibition. The methanolic extract of S. sumatrana leaves showed maximum antioxidant activity of 98.87% at 500 pg/ml concentration. Thus, this study reveals that leaves of S. sumatrana has a potential as a natural sources of antioxidant. Faculty of Applied Sciences 2015 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/25134/1/PPb_TAZKEERAH%20HASANAH%20AWANG%20SAID%20AS%20N%2015_5.pdf Awang Said, Tazkeerah Hasanah (2015) Antibacterial and antioxidant properties of shorea sumatrana leaves / Tazkeerah Hasanah Awang Said. [Student Project] (Submitted)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Extraction (Chemistry) Bacteria
spellingShingle	Extraction (Chemistry) Bacteria Awang Said, Tazkeerah Hasanah Antibacterial and antioxidant properties of shorea sumatrana leaves / Tazkeerah Hasanah Awang Said
description	The timber value of Shorea sumatrana has been well known from decades. Shorea is a major exotic species found in tropical regions and they are one of the endemic plants in Malaysia. This study is aimed to evaluate the antibacterial and antioxidant properties of the methanol extract of Shorea sumatrana leaves. The antibacterial activity of the methanol extract of S. sumatrana was assessed against gram-positive and gram-negative bacteria by disc diffusion method. On the other hand, the antioxidant activity was detected by DPPH radical scavenging activity. In the preliminary screening experiment of antibacterial activity, all of the tested bacteria showed varying degrees of sensitivity to the leaves extracts excluding P. aeruginosa. Results obtained that S. epidermidis, a gram-positive bacterium as the most susceptible to the extracts of leaves at the applied doses. Besides, only P. aeruginosa was resistant to the extracts. My findings clearly demonstrate that the leaves extracts of S. sumatrana had strong antibacterial effects and raises the possibility of using the extracts as antibacterial agents in treating pathological conditions caused by bacteria infection. Although the effect of S. sumatrana leaves against some pathogenic bacteria in vitro is promising, further microbiological and pharmacological studies will be required. In present study, in vitro antioxidant activities of the methanolic extracts of leaves of S. sumatrana were determined by spectrophotometric methods. Antioxidant activities of extract were expressed as percentage of DPPH radical inhibition. The methanolic extract of S. sumatrana leaves showed maximum antioxidant activity of 98.87% at 500 pg/ml concentration. Thus, this study reveals that leaves of S. sumatrana has a potential as a natural sources of antioxidant.
format	Student Project
author	Awang Said, Tazkeerah Hasanah
author_facet	Awang Said, Tazkeerah Hasanah
author_sort	Awang Said, Tazkeerah Hasanah
title	Antibacterial and antioxidant properties of shorea sumatrana leaves / Tazkeerah Hasanah Awang Said
title_short	Antibacterial and antioxidant properties of shorea sumatrana leaves / Tazkeerah Hasanah Awang Said
title_full	Antibacterial and antioxidant properties of shorea sumatrana leaves / Tazkeerah Hasanah Awang Said
title_fullStr	Antibacterial and antioxidant properties of shorea sumatrana leaves / Tazkeerah Hasanah Awang Said
title_full_unstemmed	Antibacterial and antioxidant properties of shorea sumatrana leaves / Tazkeerah Hasanah Awang Said
title_sort	antibacterial and antioxidant properties of shorea sumatrana leaves / tazkeerah hasanah awang said
publisher	Faculty of Applied Sciences
publishDate	2015
url	http://ir.uitm.edu.my/id/eprint/25134/ http://ir.uitm.edu.my/id/eprint/25134/1/PPb_TAZKEERAH%20HASANAH%20AWANG%20SAID%20AS%20N%2015_5.pdf
first_indexed	2023-09-18T23:14:07Z
last_indexed	2023-09-18T23:14:07Z
_version_	1777418997882421248

Antibacterial and antioxidant properties of shorea sumatrana leaves / Tazkeerah Hasanah Awang Said

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