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Reduction of Aeromonas hidrophyla biofilm on stainless stell surface by essential oils BJM
Millezi,Alessandra Farias; Cardoso,Maria das Graças; Alves,Eduardo; Piccoli,Roberta Hilsdorf.
This study demonstrates the possibility of using sanitizing detergents based on natural products for the elimination and/or reduction of Aeromonas hydrophila biofilm formed on stainless steel surfaces. The goal of this work was to determine the reduction effect of sanitizing detergents containing essential oils of Thymus vulgaris (thyme) and Cymbopogon citratus (lemongrass) on biofilm formed by A. hydrophila on AISI 304 stainless steel coupons, using UHT skimmed milk as substratum. There was adhesion and biofilm formation by A. hydrophila at 28 ºC, presenting 7.60 log cfu.cm-2 after the fourth day of cultivation. There was no significant difference between the lemongrass treatment and that of the thyme oil (p < 0.05). However, both treatments...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Thymus vulgaris; Cymbopogon citratus; Natural disinfectants; Sanitation.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100010
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In vitro antimicrobial properties of plant essential oils thymus vulgaris, cymbopogon citratus and laurus nobilis against five important foodborne pathogens Ciênc. Tecnol. Aliment.
Millezi,Alessandra Farias; Caixeta,Danila Soares; Rossoni,Diogo Francisco; Cardoso,Maria das Graças; Piccoli,Roberta Hilsdorf.
Several essential oils of condiment and medicinal plants possess proven antimicrobial activity and are of important interest for the food industry. Therefore, the Minimum Inhibitory Concentrations (MIC) of those oils should be determined for various bacteria. MIC varies according to the oil used, the major compounds, and the physiology of the bacterium under study. In the present study, the essential oils of the plants Thymus vulgaris (time), Cymbopogon citratus (lemongrass) and Laurus nobilis (bay) were chemically quantified, and the MIC was determined on the bacteria Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Listeria monocytogenes ATCC 19117, Salmonella enterica Enteritidis S64, and Pseudomonas aeruginosa ATCC 27853. The essential...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Natural antimicrobials; Essential oils; Foodborne pathogens.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000100025
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Antibacterial and anti-biofilm activity of cinnamon essential oil and eugenol Ciência Rural
Millezi,Alessandra Farias; Costa,Karine Angélica Dalla; Oliveira,José Maria; Lopes,Susana Patrícia; Pereira,Maria Olívia; Piccoli,Roberta Hilsdorf.
ABSTRACT: Biofilms are responsible for most of the interference caused by microorganisms in food processing. The aim of this study was to evaluate the cinnamon (Cinnamomum zeylanicum) essential oil and eugenol sanitizer and anti-biofilm activity against biofilms. Concentrations used of essential oil were 0.0% (control) 0.12%; 0.48%; 0.96% and 1.92%; the amount of eugenol was 0.76%. Concentrations were determined from other published studies. Number of viable cells and quantification the bacterial biomass were determined. Anti-biofilm treatment was effective in preventing the formation of biofilms. The 1.92% concentration was the most satisfactorily with Escherichia coli reduction of 5.91log CFUcm-2 and Staphylococcus aureus reduction of 5.17log CFUcm-2...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biofilm; Antimicrobial natural; Food processing.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000100452
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