Studies of antibacterial and antioxidant potential of methanol extract of Lawsonia inermis and Psidium guajava

العناوين الأخرى

دراسة الجهد المضاد للبكتيريا و المضاد للأكسدة في المستخلصات الميثانولية لنباتي الحناء و الجوافة

مقدم أطروحة جامعية

al-Ghamidi, Ala Abd al-Rahman

مشرف أطروحة جامعية

al-Tarawinah, Khalid Ahmad

أعضاء اللجنة

Atruz, Umar Muhammad Falih
al-Zaraini, Wail Ali
al-Nuaymat, Sulayman Muhammad

الجامعة

جامعة مؤتة

الكلية

كلية العلوم

القسم الأكاديمي

قسم الأحياء

دولة الجامعة

الأردن

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2015

الملخص الإنجليزي

The objective of this study was to assess the antibacterial and antioxidant activities of methanolic extracts obtained from aerial parts of two medicinal plants: Lawsonia inermis and Psidium guajava.

Both broth dilution and disc diffusion methods were used to assess the antibacterial activity of these extracts against several bacterial strains (S.

aureus, E.

coli, K.

pneumoniae, B.

subtilis and M.

luteus).

Antioxidant activity of these extracts was measured in vitro by DPPH and FRAP methods and expressed as Trolox Equivalent Antioxidant Capacity.

Both extracts exhibited antibacterial activity in dosedependent manner against the tested bacteria.

MICs were found between 500- 2000 μg /mL for P.

guajava and 250-1000 μg/mL for L.

inermis against the tested bacteria.

E.

coli growth was inhibited only by L.

inermis extract.

Both plant extracts, L.

inermis and P.

guajava, showed relatively high amounts of phenolic compounds (514 and 776 mg GA/g plant extract, respectively).

On other hand, the P.

guajava extract exhibited the best DPPH scavenging capacity and the best ferric reducing antioxidant power (37.5 and 7.93 mg Trolox/g plant extract, respectively).

In conclusion, both plant extracts exhibited antibacterial and antioxidant activities with L.

inermis showing the most antibacterial and P.

guajava showing the most antioxidant capacity.

التخصصات الرئيسية

الأحياء
النبات

الموضوعات

عدد الصفحات

52

قائمة المحتويات

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.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

al-Ghamidi, Ala Abd al-Rahman. (2015). Studies of antibacterial and antioxidant potential of methanol extract of Lawsonia inermis and Psidium guajava. (Master's theses Theses and Dissertations Master). Mutah University, Jordan
https://search.emarefa.net/detail/BIM-656307

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

al-Ghamidi, Ala Abd al-Rahman. Studies of antibacterial and antioxidant potential of methanol extract of Lawsonia inermis and Psidium guajava. (Master's theses Theses and Dissertations Master). Mutah University. (2015).
https://search.emarefa.net/detail/BIM-656307

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

al-Ghamidi, Ala Abd al-Rahman. (2015). Studies of antibacterial and antioxidant potential of methanol extract of Lawsonia inermis and Psidium guajava. (Master's theses Theses and Dissertations Master). Mutah University, Jordan
https://search.emarefa.net/detail/BIM-656307

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-656307