Antioxidant and antibacterial activities of leaves of murraya koenigii / Siti Noor Aziela Johari

Johari, Siti Noor Aziela (2017) Antioxidant and antibacterial activities of leaves of murraya koenigii / Siti Noor Aziela Johari. [Student Project] (Unpublished)


Murraya koenigii is well known as curry leaf come from the family of Rutaceae. Presence of alkaloid and flavonoid from this plant are effective source of antioxidant and antimicrobial on development of newer therapeutics treatment. In this study, three different solvent with different polarity which is petroleum ether, dichloromethane and methanol had been used to extract M. koenigii leaves using soxhlet extractor. Methanol extraction had shown the highest percentage yield with 8.1 % compared to dichloromethane and petroleum ether with 5.2 % and 4.7 % respectively. The extracts also used to measure their antioxidant and antimicrobial activity by using DPPH scavenging assay and Disc diffusion methods. The highest percentage of inhibition in antioxidant at 1000 μg/ml was showed by methanol extract with 85.3 % when compared with standard ascorbic acid followed by dichloromethane, 82.5% and petroleum ether, 84.9 %. Besides, IC50 value of methanol extract was 110.0 μg/ml in antioxidant activity of M. koenigii. Dichloromethane and petroleum ether extracts showed strong antibacterial activity against S. thypi with 20.0 and 23.0 mm inhibition zone respectively.


Item Type: Student Project
Email / ID Num.
Johari, Siti Noor Aziela
Subjects: Q Science > Q Science (General) > Study and teaching > Laboratories. General works
Q Science > QD Chemistry > Extraction (Chemistry)
R Medicine > RM Therapeutics. Pharmacology > Drugs and their actions > Antibacterial agents
Divisions: Universiti Teknologi MARA, Negeri Sembilan > Kuala Pilah Campus > Faculty of Applied Sciences
Programme: Bachelor of Science (Hons.) Chemistry
Keywords: Antioxidant, antibacterial activities of leaves of murraya koenigii
Date: 2017
Edit Item
Edit Item


[thumbnail of 35093.pdf] Text

Download (300kB)

Digital Copy

Digital (fulltext) is available at:

Physical Copy

Physical status and holdings:
Item Status:

ID Number




Statistic details