Screening of cultivated seaweeds for antibacterial activity against fish pathogenic bacteria

Bansemir, Anne; Blume, M. C.; Schröder, Susanne; Lindequist, Ulrike

doi:10.1016/j.aquaculture.2005.11.051

Cited by 244 publications

(161 citation statements)

References 13 publications

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“…Our result is in accordance with the antibacterial activity of Laurencia spp. reported from various geographic regions (DE NYS et al 1996, HELLIO et al 2001, TASKIN et al 2007) against marine, human and fish bacterial pathogens (VAIRAPPAN et al 2001(VAIRAPPAN et al , 2003BANSEMIR et al 2006). Based on the present findings L. brandenii could be utilized as renewable bioresource for the development of potential antimicrobials.…”

Section: Discussionsupporting

confidence: 63%

Biological activity of the red alga Laurencia brandenii

Manilal

Sujith

Sabarathnam

et al. 2011

Acta Botanica Croatica

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The marine red alga Laurencia brandenii collected from the southwest coast of India (Indian Ocean) was extracted and fractioned using column chromatography. The individual fractions were evaluated in vitro via antimicrobial activity against six species of Microbial Type Culture Collection and three species of clinical human pathogens, antipest activity on Sitophilus oryzae, maggoticidal activity against 2 nd instar larvae of Sarcophaga sp. and termiticidal activity against Microtermes obesi. It was found that the fraction eluted using petroleum ether:chloroform (6:4) exhibited broader biological activities. The phyco-constituents of the active fraction were identified by gas chromatography-mass spectrometry (GC-MS) analysis. The GC-MS profile of the active fraction revealed that the main constituent was octadecadienoic acid (49.75%) followed by n-hexadecanoic acid (14.24%), which might have a functional role in the biological activities. The overall activity profile envisages that these bioactive compounds from L. brandenii could be utilized as a renewable natural resource for the development of novel environmental-compatible formulations for the control of human pathogens, pests, termites and maggots.

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Section: Discussionsupporting

confidence: 63%

Biological activity of the red alga Laurencia brandenii

Manilal

Sujith

Sabarathnam

et al. 2011

Acta Botanica Croatica

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“…plastic bags. In the laboratory, samples were rinsed with tap water, identified following Abbott and Hollenberg (1976); Aleem (1993) and Taylor (1985) and dried on shadow at room temperature (25 to 30°C) Dried sample were cut into small pieces and powdered in a mixer grinder to get fine powder. Obtained powdered samples were stored in tight plastic bags.…”

Section: Collection Of Macroalgaementioning

confidence: 99%

ANTIMICROBIAL ACTIVITY of SPIRULINA PLATENSIS AGAINST AQUATIC BACTERIAL ISOLATES

El-Shouny¹,

El‐Sheekh²,

Sabae³

et al. 2017

J microb biotech food sci

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Aquatic organisms are a rich source of novel and bioactive compounds. Cyanobacteria and microalgae being a rich source of bioactive compounds have recently found immense application in human and animal medicine. The present study was attempted to find out the effect of the various extracts of Spirulina platensis, Chlorella vulgaris, Saragassum wightii and Saragassum latifolium using different solvents (methanol, ethanol, ethyl acetate and chloroform) as antimicrobial agents against five bacterial pathogens; S. aureus, E. coli, P. aeruginosa, Salmonella sp, Shigella sp. Results indicate that among the various extracts used, methanol extracts of tested cyanobacterial and algal species appeared to be the most effective ones showing maximum antibacterial activity against the selected bacterial pathogens. Spirulina platensis appeared to be the most effective against all the pathogens studied. The antibacterial substance was purified using column chromatography. The nature of the purified active fractions was detected using different chemical analyses (UV, FT-IR, 1H NMR and GC-MS) which indicated that it is an aliphatic compound and has different active groups (-OH,-C=O,-CH2 and –CH3). The results of this investigation proved that the tested cyanobacterium could be a good source for the production of promising antimicrobial agents.

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“…antiprotozoal properties [23][24][25][26][27][28][29] Thalli were manually cleaned and stored at -20°C. Crude extracts were obtained with ethanol at room temperature and dried by Rotavapor® at low temperature (35°C) to prevent volatile compounds from evaporation.…”

Section: Cell Sensitivity Assays: the Mtt Assaymentioning

confidence: 99%