Antibacterial Activity of Some Seaweed Extracts against Multidrug Resistant Urinary Tract Bacteria and Analysis of their Virulence Genes

Shouny, Wagih A. El; Gaafar, Reda M.; Ismail, Gehan A.; Elzanaty, Marwa M.

doi:10.20546/ijcmas.2017.611.302

Cited by 12 publications

(4 citation statements)

References 38 publications

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“…In detail, the alcoholic extracts of Ulva lactuca and Cladophora glomerata showed the most significant biological activity due to the presence of DIOP and DBP respectively [21,22]. Additionally, MEHP found in acetone extract of Sargassum wightii showed an high antibacterial efficiency against different Gram-positive and Gram-negative bacterial strains [23].…”

Section: Principal Paes Studies In Algaementioning

confidence: 99%

The Origin of Phthalates in Algae: Biosynthesis and Environmental Bioaccumulation

Pace,

Vaglica,

Maccotta

et al. 2024

Environments

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Phthalic acid esters (PAEs) are a class of ubiquitous and dangerous lipophilic chemicals widely used as additives in various products to improve their physical and chemical properties. Although they have been banned in many countries, their persistence in all environmental compartments is of particular concern. The aquatic environment is especially affected by these compounds because it is strongly influenced both by contamination of anthropic origin and natural contaminants including those produced biosynthetically by some organisms such as algae. In this context, algal organisms can be a source and remedy for phthalate pollution. Both the increase and decrease in uptake and production depend on the physicochemical characteristics of the environment. The dynamics of the natural processes are aimed at achieving an optimal environmental state for their competitiveness and balance of the cellular homeostasis. This review summarizes the studies dealing with biosynthesis and bioaccumulation of phthalates in algae and investigates the source of their origin by suggesting strategies to identify the process leading to their presence.

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Section: Principal Paes Studies In Algaementioning

confidence: 99%

The Origin of Phthalates in Algae: Biosynthesis and Environmental Bioaccumulation

Pace,

Vaglica,

Maccotta

et al. 2024

Environments

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“…These compounds also identified on seaweed (Ulva lactuca) has displayed antibacterial action against Proteus mirabilis, E. coli, and Kleb. pneumonia, which causes infections of the urinary tract (El-Shouny et al, 2017) The fragmentation scheme on Diisooctyl Phthalate results shows that it has the highest ion abundance (base peak) at m/z = 149.1. The base peak is the most stable fragment in a molecule, and the intensity of other fragments is also relative to…”

Section: Seen In Visible Lightmentioning

confidence: 99%

Antioxidant Capacity from Ethyl Acetate Fraction of Kenikir (Cosmos Caudatus K)

Pangeran,

Irianti,

Purnomo

2023

Trad.Med.J

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Antioxidant is an activity that inhibits oxidation reactions due to exposure to free radicals, the search for antioxidant compounds continues to be developed from natural sources. The purpose is to identify new sources of safe and inexpensive agents through antioxidant capacity from ethyl acetate fraction on kenikir leaves was evaluated through enzymatic and non-enzymatic in vitro models. The research began with the method of separating compounds from ethanol extracts and ethyl acetate fractions, quantification of total phenolics and flavonoids, antioxidant capacity tests with DPPH, and tyrosinase enzyme. The results of the study produced isolate E which was observed in a single stain with Rf 0,80. The compound has a typical marker worth 1734.07 cm-1 with an indication of stretching vibration movement on C-O. It has a maximum wavelength of ± 216 nm, with an abundance of 49.75% and a retention time of 27.20 minutes. TPC and TFC test results, the water fraction is the most dominant value with 0.430 mgGAE/g and 0.056 mQE/g. DPPH assay results, isolate E has an IC50 value of 162.03 ppm and a %inhibition of 12.73%. The tyrosinase inhibition test of L-DOPA substrate was resulting an IC50 value of 77.51 ppm compared to kojic acid of 16.48 ppm.

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“…Seaweed samples were identified according to Aleem (1993) and Guiry & Guiry (2019) as: Enteromorpha intestinalis (Linnaeus) (Chlorophyta), Sargassum vulgare C. Agardh (Phaeophyta), and Asparagopsis taxiformis (Delile) (Rhodophyta). The moisture content was removed completely by shading-dried the seaweed samples for 2 weeks (El-Shouny et al, 2017). After that, the seaweed samples were oven-dehydrated at 50°C for 30 min, grounded into powder using a mixer grinder, and finally, stored in an air-tight container at 4°C until used for NPs synthesis.…”

Section: Biological Synthesis Of Agnpsmentioning

confidence: 99%

“…Antibacterial efficacies of the chemically and biologically synthesized AgNPs were evaluated using the agar well diffusion technique against selected MDR bacterial isolates (El-Shouny et al, 2017). Approximately 50μL of either chemically or biologically synthesized AgNPs water suspensions, as well as an AgNO 3 solution (negative control), were independently added to the wells of agar plates, as previously described in the above section.…”

Section: Antibacterial Activity Test Of the Synthesized Agnpsmentioning

confidence: 99%

Effect of Biologically and Chemically Synthesized AgNPs on Multi-Drug Resistant (MDR) Dermatophyte Bacterial Isolates

et al. 2022

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Antibacterial Activity of Some Seaweed Extracts against Multidrug Resistant Urinary Tract Bacteria and Analysis of their Virulence Genes

Cited by 12 publications

References 38 publications

The Origin of Phthalates in Algae: Biosynthesis and Environmental Bioaccumulation

The Origin of Phthalates in Algae: Biosynthesis and Environmental Bioaccumulation

Antioxidant Capacity from Ethyl Acetate Fraction of Kenikir (Cosmos Caudatus K)

Effect of Biologically and Chemically Synthesized AgNPs on Multi-Drug Resistant (MDR) Dermatophyte Bacterial Isolates

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