Antibacterial efficacy of phosvitin, carvacrol, or nisin alone or combined against foodborne human enteric pathogens

White, Shecoya

doi:10.31274/etd-180810-772

Cited by 5 publications

(12 citation statements)

References 250 publications

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“…Several studies have demonstrated that carvacrol has both bacteriostatic and bactericidal activity against foodborne microorganisms, including Salmonella enterica (27,(73)(74)(75). The effectiveness of carvacrol as a natural antimicrobial compound is well established, and its mechanism of action is believed to be associated with structural and functional damage to cellular membranes (25,28,(75)(76)(77). It has also been previously demonstrated as an antibiofilm compound.…”

Section: Discussionmentioning

confidence: 99%

Hydrosol of Thymbra capitata Is a Highly Efficient Biocide against Salmonella enterica Serovar Typhimurium Biofilms

Karampoula

Giaouris

Deschamps

et al. 2016

Appl Environ Microbiol

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Salmonella is recognized as one of the most significant enteric foodborne bacterial pathogens. In recent years, the resistance of pathogens to biocides and other environmental stresses, especially when they are embedded in biofilm structures, has led to the search for and development of novel antimicrobial strategies capable of displaying both high efficiency and safety. In this direction, the aims of the present work were to evaluate the antimicrobial activity of hydrosol of the Mediterranean spice Thymbra capitata against both planktonic and biofilm cells of Salmonella enterica serovar Typhimurium and to compare its action with that of benzalkonium chloride (BC), a commonly used industrial biocide. In order to achieve this, the disinfectant activity following 6-min treatments was comparatively evaluated for both disinfectants by calculating the concentrations needed to achieve the same log reductions against both types of cells. Their bactericidal effect against biofilm cells was also comparatively determined by in situ and real-time visualization of cell inactivation through the use of time-lapse confocal laser scanning microscopy (CLSM). Interestingly, results revealed that hydrosol was almost equally effective against biofilms and planktonic cells, whereas a 200-times-higher concentration of BC was needed to achieve the same effect against biofilm compared to planktonic cells. Similarly, time-lapse CLSM revealed the significant advantage of the hydrosol to easily penetrate within the biofilm structure and quickly kill the cells, despite the three-dimensional (3D) structure of Salmonella biofilm. IMPORTANCEThe results of this paper highlight the significant antimicrobial action of a natural compound, hydrosol of Thymbra capitata, against both planktonic and biofilm cells of a common foodborne pathogen. Hydrosol has numerous advantages as a disinfectant of food-contact surfaces. It is an aqueous solution which can easily be rinsed out from surfaces, it does not have the strong smell of the essential oil (EO) and it is a byproduct of the EO distillation procedure without any industrial application until now. Consequently, hydrosol obviously could be of great value to combat biofilms and thus to improve product safety not only for the food industries but probably also for many other industries which experience biofilm-related problems.

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Section: Discussionmentioning

confidence: 99%

Hydrosol of Thymbra capitata Is a Highly Efficient Biocide against Salmonella enterica Serovar Typhimurium Biofilms

Karampoula

Giaouris

Deschamps

et al. 2016

Appl Environ Microbiol

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“…As more manufacturers formulated products with synthetic preservatives, consumers have raised the issue of potential negative health effects and have thus created a demand for naturally derived food additives and minimally processed foods (White, 2011). This consumer driven effort to push food manufacturers to replace chemical or synthetic ingredients with more natural ones is known as green consumerism.…”

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confidence: 99%

Antimicrobial Activity of Cinnamaldehyde or Geraniol alone or Combined with High Pressure Processing to Destroy Escherichia coli O157:H7 and Salmonella enterica in Juices

Manu

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Parasiticidal properties Antimicrobial properties Antioxidant properties Anticancer properties Anti-inflammatory properties Cinnamaldehyde Chemical structure Antimicrobial properties and proposed mechanism of action Salmonella enterica Common sources of contamination Factors affecting growth and survival Incidents of foodborne salmonellosis Characteristics of salmonellosis Escherichia coli Common sources of contamination Factors affecting growth and survival Incidents of foodborne E. coli infections References

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“…Phosvitin has an amino acid composition of 50% serine, and 90% of which are phosphorylated . It contains 216 amino acids of which 123 are serines (Fig 1;White, 2011;Byrne et al, 1984;.…”

Section: Compositionmentioning

confidence: 99%

“…The cost of phosvitin is $1,225.00 per gram based on the current price listed in the Sigma-Aldrich 2012 catalog. More recently, a water/ethanol based method, developed by researchers at Iowa State University, permits an efficient and cost effective option for extraction and purification of phosvitin from hens' egg yolk (White, 2011).…”

Section: Extraction Isolation and Purificationmentioning

confidence: 99%

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Antimicrobial effectiveness of Phenyllactic acid against foodborne pathogenic bacteria and Penicillium and Aspergillus molds

Manu

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Antibacterial efficacy of phosvitin, carvacrol, or nisin alone or combined against foodborne human enteric pathogens

Abstract: CHAPTER 4. GROWTH INHIBITION OF STAPHYLOCOCCUS AUREUS AND ESCHERICHIA COLI O157:H7 AND BACKGROUND MICROFLORA BY PHOSVITIN

Cited by 5 publications

References 250 publications

Hydrosol of Thymbra capitata Is a Highly Efficient Biocide against Salmonella enterica Serovar Typhimurium Biofilms

Hydrosol of Thymbra capitata Is a Highly Efficient Biocide against Salmonella enterica Serovar Typhimurium Biofilms

Antimicrobial Activity of Cinnamaldehyde or Geraniol alone or Combined with High Pressure Processing to Destroy Escherichia coli O157:H7 and Salmonella enterica in Juices

Antimicrobial effectiveness of Phenyllactic acid against foodborne pathogenic bacteria and Penicillium and Aspergillus molds

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