Antimicrobial and hemolytic activity of seaweed extracts Ulva fasciata (Delile 1813) from Mandapam, Southeast coast of India

Priyadharshini, S.; Bragadeeswaran, S.; Prabhu, Kandikere Ramaiah; Ran, Song

doi:10.1016/s2221-1691(11)60118-4

Cited by 30 publications

(15 citation statements)

References 12 publications

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“…In addition, the interests in seaweed as a rich source of pharmaceutical agents have increased during the last few years 8 . There has been some research, on seaweed extracts that can inhibit human pathogenic microorganism such as bacteria, yeast, and fungi [9][10][11][12][13] . Ulva intestinalis (Enteromorpha intestinalis), a www.scienceasia.org green alga in the phylum Chlorophyta, is widely found around the southern coast of Thailand.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial and antioxidant activities of differential solvent extractions from the green seaweed Ulva intestinalis

Srikong¹,

Bovornreungroj²,

Mittraparp‐arthorn³

et al. 2017

ScienceAsia

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ABSTRACT:The green algae (Enteromorpha spp.) is widely distributed in the southern coast of Thailand. Antibacterial, total phenolic, and antioxidant activities of crude extracts from Ulva intestinalis (E. intestinalis) with differential solvent extractions were investigated. Alga extracts were prepared by maceration with methanol, ethanol, dichloromethane, and hexane. Only the hexane extract had significant antibacterial activities for Gram-positive bacteria but not Gram-negative bacteria. The lowest minimal inhibitory concentrations of the hexane extract against Bacillus cereus TISTR 687, Staphylococcus aureus ATCC 29213, and methicillin-resistant Staphylococcus aureus 001 R (MRSA) were 256 µg/ml. Pore formation was observed on the cell surface of B. cereus treated with the hexane extract. Among these extracts, the highest inhibition radical scavenging effects on 2,2-diphenyl-2-picrylhydrazyl (DPPH) and 2,2 -azinobis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) activities were observed in the dichloromethane extract with IC 50 = 0.92 mg/ml and 1.50 mg/ml, respectively. The highest phenolic content index was observed with the dichloromethane extract as 197 ± 16 mg gallic acid equivalents/g extract and was significantly higher than those of other extracts (p < 0.05). The results indicated that this edible seaweed possesses bioactive compounds that could be further explored for future applications in medicine, dietary supplements, cosmetics, and food industries.

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Section: Introductionmentioning

confidence: 99%

Antibacterial and antioxidant activities of differential solvent extractions from the green seaweed Ulva intestinalis

Srikong¹,

Bovornreungroj²,

Mittraparp‐arthorn³

et al. 2017

ScienceAsia

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“…Therefore, algae have been used in traditional medicine for a long time [17]. Many bioactive compounds of marine algae with antimicrobial activity have been isolated and some of them are under investigation to protect life-style related diseases, some of these compounds are sterols, terpenoids, polysaccharides, peptides, proteins, vitamins, acrylic acid, terpenes, chlorophyllides, phenols, heterocyclic compounds, halogenated ketones and alkanes and cyclic polysulphides [7,15,[18][19][20]. Libya has a long coastline and abundant natural resources of marine algae with very high species diversity [21], however there are only few reports on the screening of Libyan marine algae for antibacterial activity.…”

Section: Introductionmentioning

confidence: 99%

Screening of antibacterial activity in marine green, red and brown macroalgae from the western coast of Libya

Alghazeer¹,

Whida²,

Abduelrhman³

et al. 2013

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Marine macroalgae are considered as an excellent source of bioactive compounds which has a broad range of biological activities including antibacterial and antioxidant. Crude methanolic and water extracts of 19 marine algal species (6 Chlorophyta, 8 Phaeophyta and 5 Rhodophyta) collected from the western coast of Libya were evaluated for antibacterial activity against pathogenic bacteria (4 Gram-positive, 4 Gram-nega- tive). The extracts showed a significant antibacterial activity against Gram positive (Staphylococcus aureus, Bacillus subtilis, Bacillus spp., and Staphylococcus epidermidis) as well as Gram negative bacteria (Escherichia coli, Salmonella typhi, Klebsiella spp., and Pseudomonas aerugi- nosa). The algal aqueous and methanolic extracts displayed different degrees of antimicrobial activities against different bacteria, in some cases methanolic extracts showed higher antibacterial activity than aqueous extracts. Among tested algae, Brown algae namely show abstract

“…The in vitro antimicrobial activity of seaweeds extracted with methanol, ethanol, and acetone was reported in various studies [9,10]. However, the strong antimicrobial activity was reported using methanol [11][12][13]. Previous studies reported that the antibacterial compounds are more active against Gram-positive bacteria than Gram-negative bacteria.…”

Section: Discussionmentioning
confidence: 99%

Comparative Study on Antimicrobial Activity of Seaweeds
Sasikala¹,
D²
2017
Asian J Pharm Clin Res
6
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Objective: Secondary metabolites from natural resources are a potential source of antimicrobial leads and drugs can exploited to combat antimicrobial resistance in microorganisms. Seaweeds are considered as a valuable source with a broad spectrum of biological activities. Hence, this study was undertaken to screen seaweeds from Mandapam coastal waters, East coast of India, for antimicrobial activity.Methods: Compounds were extracted using methanol from the seaweeds, namely, Halimeda gracilis, Caulerpa serrulata, Sargassum swartzii, Sargassum wightii, Jania rubens, Ulva lactuca, Ulva fasciata, Gracilaria corticata, Stoechospermum marginatum, Caulerpa scalpelliformis, Caulerpa taxifolia, Chaetomorpha crassa, Enteromorpha flexuosa, and Turbinaria ornate. The extracts were screened for their antimicrobial activity against selected bacterial and fungal pathogens. Results:In the present study, S. swartzii, J. rubens, and S. marginatum showed broad spectrum of antibacterial activity against all the test bacterial pathogens. Among these, the maximum activity was exhibited by S. swartzii against Enterococcus faecalis (27.00 ± 0.88) and Streptococcus pyogenes (23.00 ± 0.84), followed by J. rubens against E. faecalis (26.00 ± 0.56) and S. pyogenes (22.00 ± 0.75), and S. marginatum exhibited significant inhibition against Staphylococcus aureus (15.00 ± 0.22) and S. pyogenes (18.00 ± 1.16). Conclusion:These seaweeds with significant antibacterial activity will subjected to phytochemical screening to find out the potential active principle responsible for antimicrobial activity. It is followed by purification and characterization of the compounds for possible application in drug formulation, can take this to large-scale application in pharmaceutical industries.

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Antimicrobial and hemolytic activity of seaweed extracts Ulva fasciata (Delile 1813) from Mandapam, Southeast coast of India

Cited by 30 publications

References 12 publications

Antibacterial and antioxidant activities of differential solvent extractions from the green seaweed Ulva intestinalis

Antibacterial and antioxidant activities of differential solvent extractions from the green seaweed Ulva intestinalis

Screening of antibacterial activity in marine green, red and brown macroalgae from the western coast of Libya

Comparative Study on Antimicrobial Activity of Seaweeds

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