Synergistic Antibacterial Activity of Ecklonia cava (Phaeophyceae: Laminariales) against Listeria monocytogenes (Bacillales: Listeriaceae)

Nshimiyumukiza, Ossiniel; Kang, Shin-Kook; Kim, Hyojung; Lee, Eun‐Hye; Han, Hae-Na; Kim, Yunhye; Kim, Deok-Hoon; Kim, Jihoon; Eom, Sung‐Hwan; Kim, Young‐Mog

doi:10.5657/fas.2015.0001

Cited by 8 publications

(9 citation statements)

References 19 publications

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“…In general, the microbial species on which the algae extracts have the strongest inhibitory activity are Staphylococcus aureus [ 9 ], Escherichia coli [ 124 ], Salmonella spp [ 62 , 125 , 126 ], Bacillus cereus [ 127 , 128 ], and Listeria monocytogenes [ 129 , 130 ]. For example, 100% ethanolic extracts of Pithophora oedogonium and Botrydiopsis arhiza , at concentrations of 2, 4, 6, and 8 mg/mL, were investigated for their antimicrobial activity against Salmonella and Staphylococcus sp.…”

Section: Health Effectsmentioning

confidence: 99%

“…For example, the ethyl acetate soluble fraction of E. cava methanolic extract exhibits high antibacterial activity against L. monocytogenes having an minimum inhibitory concentration (MIC) value of 256 µg/mL and an minimum bactericidal concentration (MBC) value of 512 µg/mL. Instead, the chloroform fraction of the ethanolic extract of Myagropsis myagroides was even more efficient in inhibiting the L. monocytogenes growth, with an MIC value of 63 μg/mL [ 129 , 130 ].…”

Section: Health Effectsmentioning

confidence: 99%

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Macroalgae—A Sustainable Source of Chemical Compounds with Biological Activities

et al. 2020

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Nowadays, one of the most important research directions that concerns the scientific world is to exploit the earth’s resources in a sustainable way. Considering the increasing interest in finding new sources of bioactive molecules and functional products, many research studies focused their interest on demonstrating the sustainability of exploiting marine macroalgal biomass as feedstock for wastewater treatment and natural fertilizer, conversion into green biofuels, active ingredients in pharmaceutical and nutraceutical products, or even for the production of functional ingredients and integration in the human food chain. The objective of the present paper was to provide an overview on the recent progress in the exploitation of different macroalgae species as a source of bioactive compounds, mainly emphasizing the latter published data regarding their potential bioactivities, health benefits, and industrial applications.

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Section: Health Effectsmentioning

confidence: 99%

Section: Health Effectsmentioning

confidence: 99%

Macroalgae—A Sustainable Source of Chemical Compounds with Biological Activities

et al. 2020

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“…Each class of seaweed (Phaeophyceae, Rhodophyta, and Chlorophyta), because of their different compositions, has a different degree of antimicrobial activity and different target microorganisms [33]. Ecklonia cava, a brown seaweed, has been tested on L. monocytogenes, and good antimicrobial activity was found [34]. Several Sargassum species have been found to be strong antimicrobial agents, mainly against Gram-positive bacteria but also toward Salmonella spp.…”

Section: Antimicrobial Activity Toward Foodborne Pathogensmentioning

confidence: 99%

Antimicrobial and Fermentation Potential of Himanthalia elongata in Food Applications

et al. 2020

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Himanthalia elongata is a brown oceanic seaweed rich in bioactive compounds. It could play an important role in food production because of its antimicrobial and antioxidant properties. Three strains belonging to the Lactobacillus casei group (Lactobacillus casei, Lactobacillus paracasei, and Lactobacillus rhamnosus) and a Bacillus subtilis strain were used for the solid-state fermentation of commercial seaweeds, and bacterial growth was monitored using the plate count method. High-pressure processing (HPP) was also employed (6000 bar, 5 min, 5 °C) before extraction. The antimicrobial activity of the extracts was tested in terms of the main food pathogenic bacteria (Salmonella spp., Listeria monocytogenes, Escherichia coli, Staphylococcus aureus, and Bacillus cereus), and the phenolic content was estimated using the Folin–Ciocalteau method. In addition, targeted UHPLC-MS2 methods were used to unravel the profile of phlorotannins. H. elongata allowed the growth of the L. casei group strains and B. subtilis, showing the fermentability of this substrate. Significant antimicrobial activity toward L. monocytogenes was observed in the extracts obtained from unfermented samples, but neither fermentation nor HPP enhanced the natural antimicrobial activity of this seaweed species. The content in the phenolic compounds decreased because of the fermentation process, and the amount of phenolics in both the unfermented and fermented H. elongata extracts was very low. Despite phlorotannins being related to the natural antimicrobial activity of this brown seaweed, these results did not support this association. Even if fermentation and HPP were not proven to be effective tools for enhancing the useful compounds of H. elongata, the seaweed was shown to be a suitable substrate for L. casei group strains as well as for B. subtilis growth, and its extracts exhibited antimicrobial activity toward foodborne pathogens.

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“…With the emergence of multidrug-resistant bacteria, the need for new antibiotics or therapeutic agents has increased [ 33 , 34 ]. One of the effective strategies in developing alternative therapies is restoring antibiotic efficacy with non-antibiotic natural products against drug-resistant bacteria [ 14 , 35 , 36 , 37 ]. Based on these reports, an interaction between chitosan-phytochemicals and commercial antibiotics were estimated by the checkerboard method, as stated above, and the results are presented in Table 3 .…”

Section: Resultsmentioning

confidence: 99%

Synergistic Antibacterial Effects of Chitosan-Caffeic Acid Conjugate against Antibiotic-Resistant Acne-Related Bacteria

Kim

Eom

et al. 2017

Marine Drugs

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Abstract:The object of this study was to discover an alternative therapeutic agent with fewer side effects against acne vulgaris, one of the most common skin diseases. Acne vulgaris is often associated with acne-related bacteria such as Propionibacterium acnes, Staphylococcus epidermidis, Staphylococcus aureus, and Pseudomonas aeruginosa. Some of these bacteria exhibit a resistance against commercial antibiotics that have been used in the treatment of acne vulgaris (tetracycline, erythromycin, and lincomycin). In the current study, we tested in vitro antibacterial effect of chitosan-phytochemical conjugates on acne-related bacteria. Three chitosan-phytochemical conjugates used in this study exhibited stronger antibacterial activity than that of chitosan (unmodified control). Chitosan-caffeic acid conjugate (CCA) showed the highest antibacterial effect on acne-related bacteria along with minimum inhibitory concentration (MIC; 8 to 256 µg/mL). Additionally, the MIC values of antibiotics against antibiotic-resistant P. acnes and P. aeruginosa strains were dramatically reduced in combination with CCA, suggesting that CCA would restore the antibacterial activity of the antibiotics. The analysis of fractional inhibitory concentration (FIC) indices clearly revealed a synergistic antibacterial effect of CCA with antibiotics. Thus, the median sum of FIC (∑FIC) values against the antibiotic-resistant bacterial strains ranged from 0.375 to 0.533 in the combination mode of CCA and antibiotics. The results of the present study suggested a potential possibility of chitosan-phytochemical conjugates in the control of infections related to acne vulgaris.

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Synergistic Antibacterial Activity of Ecklonia cava (Phaeophyceae: Laminariales) against Listeria monocytogenes (Bacillales: Listeriaceae)

Cited by 8 publications

References 19 publications

Macroalgae—A Sustainable Source of Chemical Compounds with Biological Activities

Macroalgae—A Sustainable Source of Chemical Compounds with Biological Activities

Antimicrobial and Fermentation Potential of Himanthalia elongata in Food Applications

Synergistic Antibacterial Effects of Chitosan-Caffeic Acid Conjugate against Antibiotic-Resistant Acne-Related Bacteria

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