Anti-Bacterial Activity of Cryptolepis buchanani Aqueous Extract

Sittiwet, Chaiyasit; Puangpronp, D.

doi:10.3923/ijbc.2009.90.94

Cited by 8 publications

(4 citation statements)

References 14 publications

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“…In addition, the application of TRG to the leaves of barley plants reduced disease symptoms due to powdery mildew up to 56% [ 37 ]. Buchananine was shown to possess broad antibacterial activity against eight out of the ten bacteria species examined [ 38 ]. Therefore, these metabolites likely play roles in FHB resistance in wheat plants.…”

Section: Discussionmentioning

confidence: 99%

Nicotinamide Effectively Suppresses Fusarium Head Blight in Wheat Plants

Sidiq

Mori

Yaeno

et al. 2021

IJMS

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Pyridine nucleotides such as a nicotinamide adenine dinucleotide (NAD) are known as plant defense activators. We previously reported that nicotinamide mononucleotide (NMN) enhanced disease resistance against fungal pathogen Fusarium graminearum in barley and Arabidopsis. In this study, we reveal that the pretreatment of nicotinamide (NIM), which does not contain nucleotides, effectively suppresses disease development of Fusarium Head Blight (FHB) in wheat plants. Correspondingly, deoxynivalenol (DON) mycotoxin accumulation was also significantly decreased by NIM pretreatment. A metabolome analysis showed that several antioxidant and antifungal compounds such as trigonelline were significantly accumulated in the NIM-pretreated spikes after inoculation of F. graminearum. In addition, some metabolites involved in the DNA hypomethylation were accumulated in the NIM-pretreated spikes. On the other hand, fungal metabolites DON and ergosterol peroxide were significantly reduced by the NIM pretreatment. Since NIM is relative stable and inexpensive compared with NMN and NAD, it may be more useful for the control of symptoms of FHB and DON accumulation in wheat and other crops.

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Section: Discussionmentioning

confidence: 99%

Nicotinamide Effectively Suppresses Fusarium Head Blight in Wheat Plants

Sidiq

Mori

Yaeno

et al. 2021

IJMS

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“…In addition, the perception that there is a lower incidence of adverse reactions to plant preparations compared to synthetic pharmaceuticals and the reduced cost of plant preparations [7]. Make the development of plant extract as the anti-food borne pathogens one useful possibility [8].…”

Section: Introductionmentioning

confidence: 99%

Preventative and Curative Effect of Moringa oleifera Aqueous Extract to Ensure Safe Natural Antimicrobials Targeting Foodborne Pathogens

Ar¹,

Aa²,

Ama³

et al. 2017

Arch Clin Microbiol

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The interest in biopreservation of food has prompted the quest for new natural antimicrobial compounds from different origins including plants. Medicinal plants are moving from fringe to mainstream use with a greater number of people seeking for remedies and health approaches from side effects caused by synthetic chemicals. This has aggravated the search for antimicrobials from plants sources. In this study, aqueous extract of Moringa oleifera was screened for antimicrobial activity against five foodborne bacterial isolates (Bacillus cereus, Staphyllococcus aureus, Escherichia coli, Salmonella typhi and Pseudomonas aeruginosa). As well as, against five fungal and yeast strains, including Aspergillus niger, Aspergillus flavus, Penicillium italicum, Rhizopus stolonifer and Candida albicans. Various methods for better antimicrobial activity were established. Minimum Inhibitory Concentration (MIC) and time-kill assays were also determined. The Moringa oleifera aqueous extract exhibited antimicrobial activity towards all tested microorganisms with markedly stronger anti-Gram positive bacteria activities were 26.2 ± 0.55 and 24.26 ± 0.71 (mm) against B. cereus and S. aureus, respectively, while the anti-Gram negative bacteria halos of inhibition ranged from 18.230.81 to 21.73 ± 0.55 as an organism specific. However, the Moringa oleifera aqueous extract showed strong antifungal activity in exception C. albicans, the effect was concentration dependant in a range from 15.2 ± 0.79 to 35.7 ± 0.63. Based on MICs values Moringa oleifera aqueous extract exhibited a wide spectrum of actions against both two Gram-types bacteria and tested fungal/yeast strains and the concentration values ranged from 1.562 to 12.5 mg/ml against bacteria depending on Gram character and ranged from 1.562 to 25 mg/ml against the panel of fungi and yeast tested. The MICs values were organism specific and concentration dependent. Based on the time-kill assay Gram-negative bacteria required longer time of exposure than the Gram-positive one. Interestingly, Moringa oleifera aqueous extract at sub-inhibitory concentrations showed strong activity in smashing up foodborne bacterial biofilm as a dose dependent manner. Scanning Electron Microscopy (SEM) images showed the morphological damages and strong destructive effects against both Gram-positive and Gram-negative bacteria. Finally, Moringa oleifera aqueous extract has good potential for controlling growth of foodborne pathogenic and spoilage microorganisms and open new fields in food biopreservation. As well as, breaks the increasing prevalence of multi-drug resistant strains of bacteria and the recent appearance of strains with reduced susceptibility to antibiotics raised the specter of 'untreatable' bacterial infections and adds urgency to the search for new infection-fighting strategies.

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“…Also, the increasing international trade in commodities and food products has raised the risk of spreading pathogenic bacteria from production sites to distant places. Furthermore, contamination with foodborne pathogens is a major problem in livestock production (Sittiwet and Puangpronpitag ). This has resulted on extensive use of chemical preservatives to prevent growth of foodborne pathogens in food industry (Natta et al .…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition Analysis and Antibacterial Mode of Action of Taxus Cuspidata Leaf Essential Oil against Foodborne Pathogens

Bajpai

Sharma

Moon

et al. 2013

Journal of Food Safety

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This study examined the antibacterial mode of action of Taxus cuspidata leaf essential oil (TCEO) against foodborne pathogenic bacteria. Gas chromatography–mass spectrometry analysis of microwave‐extracted TCEO resulted in examination of 34 different compounds, representing 81.63% of the total oil. The TCEO (1,000 μg per disc) showed antibacterial effect against Bacillus cereus ATCC 13061, Staphylococcus aureus ATCC 12600, Listeria monocytogenes ATCC 7644, Salmonella typhimurium ATCC 43174 and Escherichia coli ATCC 43889 as diameters of inhibition zones (22.0 ± 0.4 to 34.0 ± 1.2 mm). The minimum inhibitory concentration and minimum bactericidal concentration values of TCEO against the tested pathogens were found in the range of 250–1,000 μg/mL. Also, the TCEO had potential inhibitory effect on the viable counts of test pathogens. The TCEO revealed its mode of action on membrane integrity as confirmed by marked release of extracellular adenosine triphosphate, 260 nm absorbing materials and potassium ion efflux. The scanning electron microscopy analysis using TCEO further confirmed severe morphological alterations on the cell membrane of test pathogens. Practical Applications Because of frequent foodborne outbreaks and rising concern of consumers on the use of chemical preservatives in foods, the food industry is emphasizing the use of natural antibacterial agents from plant origin as safe food preservatives. Some selected plant materials are used as natural antimicrobials in food systems to prevent the growth of foodborne pathogens, resulting in the extension of shelf life of processed foods. Taxus cuspidata leaf essential oil (TCEO) is shown by this study to elicit its antibacterial action against foodborne pathogens through membrane permeabilization and can be used to control the growth of several foodborne pathogens. Hence, it is anticipated that TCEO may have greater potential for its practical application as an affective food preservative.

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Anti-Bacterial Activity of Cryptolepis buchanani Aqueous Extract

Cited by 8 publications

References 14 publications

Nicotinamide Effectively Suppresses Fusarium Head Blight in Wheat Plants

Nicotinamide Effectively Suppresses Fusarium Head Blight in Wheat Plants

Preventative and Curative Effect of Moringa oleifera Aqueous Extract to Ensure Safe Natural Antimicrobials Targeting Foodborne Pathogens

Chemical Composition Analysis and Antibacterial Mode of Action of Taxus Cuspidata Leaf Essential Oil against Foodborne Pathogens

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