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VOL. 11, ISSUE 2 (2026)
Effect of Ulva lactuca and Sargassum fluitans extracts on growth of some bacteria
Authors
Intisar Ali Abumis, Ebtisam A Hamdan, Leena T El-Mahroug
Abstract
This study investigated the effect of extracts
from the seaweeds Ulva lactuca and Sargassum fluitans on the
growth of four bacterial species: two Gram-negative, Salmonella and Escherichia
coli, and two Gram-positive, Staphylococcus epidermidis and Staphylococcus
aureus. The results showed that the extract exhibited inhibitory activity
against three of the four bacterial species: E. coli, Staphylococcus
epidermidis (-323) and Staphylococcus aureus (HS). However, no
inhibitory activity was observed against Salmonella. The results also
showed that the aqueous extract of Ulva lactuca gave a higher inhibition
rate than the alcoholic extract, whereas for Sargassum fluitans, the
alcoholic extract gave a higher inhibition rate than the aqueous extract.
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Pages:378-380
How to cite this article:
Intisar Ali Abumis, Ebtisam A Hamdan, Leena T El-Mahroug "Effect of <i>Ulva lactuca</i> and <i>Sargassum fluitans</i><i> </i>extracts on growth<i> </i>of some bacteria". International Journal of Botany Studies, Vol 11, Issue 2, 2026, Pages 378-380
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