Antibacterial activities of protein extracts from andrographis paniculata, tinospora crispa and centella asiatica

Md Zin, Noor Hasniza and Ahmad, Nurul Fatihah and Muhamad Bunnori, Noraslinda and Abdul Wahab, Widya and Haron, Normah (2016) Antibacterial activities of protein extracts from andrographis paniculata, tinospora crispa and centella asiatica. In: Medical Research Symposium & Pacific Partnership in conjunction with Kuantan Research Day 2016, 3rd-5th August 2016, Kuantan, Pahang.

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Abstract

Introduction: Andrographis paniculata, Tinospora crispa and Centella asiatica are known to have various pharmacological functions. This research was carried out to investigate the antibacterial activities of protein extracts from A. paniculata, T. crispa and C. asiatica.Methods:Total soluble proteins from these herbs were extracted using a modified TCA/acetone method.The protein extracts were then quantified using Bradford assay and separated using SDS-PAGE.The antibacterial activities were determined by disc diffusion method.Results and discussion:T. crispa had a significantly higher amount of proteins (83.86 ±0.4 µg/µl) compared to A.paniculata (81.57±0.4 µg/µl) and C. asiatica (78.93 ±0.5 µg/µl). The proteins separated by SDS-PAGE were ranged from 30kDa to 260kDa, 25kDa to 110kDa and 25kDa to 160kDa for A. paniculata, T. crispa and C. Asiatic, respectively. The high abundance proteins were observed in A. paniculata and T. crispa but not in C.asitica. Protein extracts from C. asiatica have demonstrated antibacterial activity against all tested bacteria with the diameter of inhibition zone of 11.0 ± 0.5 mm, 12.3 ± 0.6 mm, 10.7 ± 0.7 mm and 20.0 ± 0.8 mm against B. cereus, S.aureus, K. pneumonia and S. typhimurium respectively. Meanwhile, protein extracts of A. paniculata showed a positive antibacterial activity only against B.cereus (13.7 ± 0.4 mm), S. aureus (7.0 ± 0.8 mm) and S. typhimurium (11.5 ± 0.3 mm). Protein extracts from T. crispa only showed a positive antibacterial activity against B.cereus (9.7 ± 0.5 mm).Conclusion:There is a constant need in the discovery of new antibiotics for the treatment of infectious diseases.

Item Type:	Conference or Workshop Item (Poster)
Additional Information:	6771/56790
Uncontrolled Keywords:	SDS-PAGE, soluble protein, disc diffusion, antibacteria
Subjects:	Q Science > QK Botany Q Science > QR Microbiology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Biotechnology
Depositing User:	Dr. Noraslinda Muhamad Bunnori
Date Deposited:	17 May 2017 12:02
Last Modified:	17 May 2017 12:02
URI:	http://irep.iium.edu.my/id/eprint/56790

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