ANTIBACTERIAL ACTIVITY OF FIVE SPECIES OF MARINE MICROALGAE
AbstractAntibacterial activity of five marine microalgae Isochrysis galbana, Chaetoceros calcitrans, Tetraselmis suecica, Nannochloropsis oculata, Aphanocapsa sp. was studied from Visakhapatnam. The ethanolic extract of T. suecica, C. calcitrans, and N. oculata s howed inhibitory activity against V. harveyi and S. Aureus with inhibition zone between 11.5 and 20mm. The ethanolic extract of I. galbana showed inhibitory activity against S. aureus only with an inhibition zone of 15mm. Among the four extracts, T. suecica showed maximum inhibitory activity against V. harveyi with an inhibition zone of 20mm. The methanolic extract of T. suecica moderately inhibited the growth of V. harveyi and S. aureus with inhibition zones of 11.5 and 11 mm respectively, whereas the extracts of I. Galbana and C. Calcitrans inhibited only V. harveyi with inhibition zones of 10 and 12 mm respectively, but no activity was found against S. aureus, A. hydrophila and E. coli. So, the studied microalgae could be used as a potential source to extract, bioactive marine natural compounds with antibacterial activity.
Article Information
49
4763-4770
1662 KB
402
English
IJPSR
G. Teja *, P. Yedukondala Rao, P. Janakiram, D. Sunil Kumar, V. A. Iswarya Deepti and P. Lakshmi Chaya
Department of Marine Living Resources, Andhra University, Visakhapatnam, Andhra Pradesh, India.
tejaaag@gmail.com
15 March 2022
23 April 2022
11 May 2022
10.13040/IJPSR.0975-8232.13(11).4763-70
01 November 2022
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