Evaluation of antibacterial and antioxidant activities of methanolic extracts of some plants used in folk medicine in Saudi Arabia
Other Title(s)
تقييم الخصائص المضادة للبكتيريا و المضادة للأكسدة للمستخلصات الميثانولية لبعض النباتات المستخدمة في الطب الشعبي في المملكة العربية السعودية
Dissertant
al-Shahri, Mishrif Salih Abd Allah
Thesis advisor
Comitee Members
al-Mustafa, Ahmad Husayn Husayn
al-Nuaymat, Sulayman
al-Quran, Salih
University
Mutah University
Faculty
Faculty of Science
Department
Department of Biological Sciences
University Country
Jordan
Degree
Master
Degree Date
2017
English Abstract
The aim of this study was to assess the antibacterial and antioxidant activities of methanolic extracts obtained from Cinnamomum cassia, Hibiscus sabdariffa, Salvia officinalis and Senna alexandrina.
Both disc diffusion and broth serial dilution methods were used to assess the antibacterial activity of these extracts against several bacterial strains (S.
aureus, M.
luteus, K.
oxytoca and E.
coli).
Antioxidant activity of these extracts was measured in vitro by DPPH and FRAP methods and expressed as trolox equivalents.
All extracts exhibited antibacterial activity in dose-dependent manner against the tested bacteria.
MICs were found between 0.75 to 3mg /mL for all plant extracts against the tested bacteria.
E.
coli growth was inhibited only by C.
cassia and H.
sabdariffa extracts.
C.
cassia extract showed the highest amount of phenolic compounds (45.2 mg GA/g plant extract) compared to the other plants.
Moreover, C.
cassia extract exhibited the best DPPH scavenging capacity and the best ferric reducing antioxidant power (88.97 and 5.36 mg Trolox/g plant extract, respectively).
In conclusion, both C.
cassia and H.
sabdariffa exhibited a potential antibacterial activities against the tested strains , while C.
cassia and S.
officinalis were the plants that showed the greatest antioxidant activity
Main Subjects
Topics
No. of Pages
38
Table of Contents
Table of contents.
Abstract.
Abstract in Arabic.
Chapter One : Theoretical background.
Chapter Two : Literature review.
Chapter Three : Design and methodology.
Chapter Four : Results, discussion and recommendation.
References.
American Psychological Association (APA)
al-Shahri, Mishrif Salih Abd Allah. (2017). Evaluation of antibacterial and antioxidant activities of methanolic extracts of some plants used in folk medicine in Saudi Arabia. (Master's theses Theses and Dissertations Master). Mutah University, Jordan
https://search.emarefa.net/detail/BIM-749146
Modern Language Association (MLA)
al-Shahri, Mishrif Salih Abd Allah. Evaluation of antibacterial and antioxidant activities of methanolic extracts of some plants used in folk medicine in Saudi Arabia. (Master's theses Theses and Dissertations Master). Mutah University. (2017).
https://search.emarefa.net/detail/BIM-749146
American Medical Association (AMA)
al-Shahri, Mishrif Salih Abd Allah. (2017). Evaluation of antibacterial and antioxidant activities of methanolic extracts of some plants used in folk medicine in Saudi Arabia. (Master's theses Theses and Dissertations Master). Mutah University, Jordan
https://search.emarefa.net/detail/BIM-749146
Language
English
Data Type
Arab Theses
Record ID
BIM-749146
