Application of Surfactant Micelle-Entrapped Eugenol for Prevention of Growth of the Shiga Toxin-Producing Escherichia coli in Ground Beef

Tolen, Tamra N.; Ruengvisesh, Songsirin; Taylor, T. Matthew

doi:10.3390/foods6080069

Cited by 8 publications

(3 citation statements)

References 30 publications

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“…Relatively high CMC values for traditional surfactants result in decomposition of micelles on individual molecules due to dilution, so their application for drug delivery is very restricted. In general, conventional surfactants are used to stabilize nano- and microemulsions for drug delivery [ 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic Film Rehydration Synthesis of Mixed Polylactide Micelles for Enzyme-Resistant Drug Delivery Nanovehicles

et al. 2022

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A facile technique for the preparation of mixed polylactide micelles from amorphous poly-D,L-lactide-block-polyethyleneglycol and crystalline amino-terminated poly-L-lactide is described. In comparison to the classical routine solvent substitution method, the ultrasonication assisted formation of polymer micelles allows shortening of the preparation time from several days to 15–20 min. The structure and morphology of mixed micelles were analyzed with the assistance of electron microscopy, dynamic and static light scattering and differential scanning calorimetery. The resulting polymer micelles have a hydrodynamic radius of about 150 nm and a narrow size distribution. The average molecular weight of micelles was found to be 2.1 × 107 and the aggregation number was calculated to be 6000. The obtained biocompatible particles were shown to possess low cytotoxicity, high colloid stability and high stability towards enzymatic hydrolysis. The possible application of mixed polylactide micelles as drug delivery vehicles was studied for the antitumor hydrophobic drug paclitaxel. The lethal concentration (LC50) of paclitaxel encapsulated in polylactide micelles was found to be 42 ± 4 µg/mL—a value equal to the LC50 of paclitaxel in the commercial drug Paclitaxel-Teva.

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Section: Introductionmentioning

confidence: 99%

Ultrasonic Film Rehydration Synthesis of Mixed Polylactide Micelles for Enzyme-Resistant Drug Delivery Nanovehicles

et al. 2022

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“…The prevention of growth of Escherichia coli in ground beef by the application of surfactant micelle-entrapped eugenol was the objective proposed in the paper by Tolen et al [ 13 ]. In this case the authors concluded that this antimicrobial treatment did not significantly decontaminate ground beef and so further studies must be proposed to increase the utility of these EOs for beef safety protection.…”

Section: Introductionmentioning

confidence: 99%

Introduction to the Special Issue: Application of Essential Oils in Food Systems

Fernández‐López

Viuda‐Martos

2018

Foods

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Essential oils have received increasing attention as natural additives for the shelf-life extension of food products due to the risk in using synthetic preservatives. Synthetic additives can reduce food spoilage, but the present generation is very health conscious and believes in natural products rather than synthetic ones due to their potential toxicity and other concerns. Therefore, one of the major emerging technologies is the extraction of essential oils from several plant organs and their application to foods. Essential oils are a good source of several bioactive compounds, which possess antioxidative and antimicrobial properties, so their use can be very useful to extend shelf-life in food products. Although essential oils have been shown to be promising alternative to chemical preservatives, they present special limitations that must be solved before their application in food systems. Low water solubility, high volatility, and strong odor are the main properties that make it difficult for food applications. Recent advances that refer to new forms of application to avoid these problems are currently under study. Their application into packaging materials and coated films but also directly into the food matrix as emulsions, nanoemulsions, and coating are some of their new applications among others.

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“…Further results showed that after five days of storage, all treatments significantly reduced the pathogenic load by 0.2 and 0.3 log 10 CFU/g (p=0.014) [17]. Tolen et al [18] evaluated the synergistic blend of sodium dodecyl sulfate (SDS), lactic acid (LA) and chitosan acid (CA) against non-STEC O157 using cattle hide decontamination model. The treatments were (vol/vol): CA (1% chitosan in 1% acetic acid), SDS (1%), SDS (2%), LA (1%), CA-SDS combination (1% chitosan in 1% acetic acid mixed with 1% SDS), and LA-SDS combination in two different concentrations (1% LA mixed with 1% SDS, and 1% LA mixed with 2% SDS) and phosphate buffer water as a control.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Effects of Lactic-Citric Acid Blend and Sodium Lauryl Sulfate on the Inhibition of Shiga Toxin-Producing Escherichia coli in a Broth System

Jackson-Davis¹,

Bethel²,

Staley³

et al. 2018

J Nutr Food Sci

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Food grade organic acids are used to control undesirable microbes in foods and are commonly diluted in water to facilitate application of desired concentrations of antimicrobial agents. However, water is a poor wetting agent for hydrophobic environments. In hydrophobic environments this problem can be circumvented by use of a food grade processing aid. Sodium lauryl sulfate (SLS) is a surfactant that is generally regarded as a safe food additive. The purpose of this study was to investigate the ability of a lactic-citric acid (LCA) blend and SLS to control the growth of Shiga toxin-producing Escherichia coli (STEC) in a broth system. E. coli O157:H7 and a cocktail of non-O157:H7 (O26, O45, O103, O11, O121, O145, O104:H4) strains were evaluated separately (8.0 log CFU/g). A blend solution of LCA at a 2.4% concentration and SLS at concentrations of 0.05%, 0.25%, and 0.5% were evaluated individually and in combination. Samples were plated onto Sorbitol MacConkey agar infused with rifampicin (100 µg/ml) and incubated at 37°C for 24 h. When used alone the treatments showed no individual effects (p>0.05) of the LCA blend or SLS on the control of O157:H7 and the non-O157:H7 cocktail in the BHI broth. Applying the combined SLS (0.05% and 0.5%) and LCA blend (2.4%) in the broth significantly (p<0.01) reduced the non-O157:H7 by 5.5 log CFU/g and 2.9 and 4.6 log CFU/g in O157:H7 stains. Increasing the SLS concentration (0.25%) in LCA blend (2.4%) was more effective (p<0.01) on O157:H7, showing 5 log CFU/g reduction. This work will assist with providing new information on enhancing the wettability and the exposure of pathogens to antimicrobial treatment.

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Application of Surfactant Micelle-Entrapped Eugenol for Prevention of Growth of the Shiga Toxin-Producing Escherichia coli in Ground Beef

Cited by 8 publications

References 30 publications

Ultrasonic Film Rehydration Synthesis of Mixed Polylactide Micelles for Enzyme-Resistant Drug Delivery Nanovehicles

Ultrasonic Film Rehydration Synthesis of Mixed Polylactide Micelles for Enzyme-Resistant Drug Delivery Nanovehicles

Introduction to the Special Issue: Application of Essential Oils in Food Systems

Investigating the Effects of Lactic-Citric Acid Blend and Sodium Lauryl Sulfate on the Inhibition of Shiga Toxin-Producing Escherichia coli in a Broth System

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