Application of natamycin and farnesol as bioprotection agents to inhibit biofilm formation of yeasts and foodborne bacterial pathogens in apple juice processing lines

Agustín, María del Rosario; Tarifa, María Clara; Vela-Gurovic, Maria Soledad; Brugnoni, Lorena Inés

doi:10.1016/j.fm.2022.104123

Cited by 4 publications

(2 citation statements)

References 47 publications

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“…To determine the composition of the remaining surface-attached bacteria, the cell number was estimated by placing the cellulose (diameter: 15 mm) into a glass test tube with PBS and five glass beads. Each suspension was sonicated once for 2 min at 25 • C, at 100% intensity, (Bandelin sonorox digital plus) and vortexed at full speed for 2 min, following previously reported protocols [53,54]. Then, samples were serially diluted with PBS and counts determined according to the plate count agar method.…”

Section: Quantification Of Remaining Living Bacteria On the Textile F...mentioning

confidence: 99%

Monitoring Growth and Removal of Pseudomonas Biofilms on Cellulose-Based Fabrics

et al. 2023

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Biofilms are often tolerant towards routine cleaning and disinfection processes. As they can grow on fabrics in household or healthcare settings, resulting in odors and serious health problems, it is necessary to contain biofilms through eradication strategies. The current study proposes a novel test model for the growth and removal of biofilms on textiles with Pseudomonas fluorescens and the opportunistic nosocomial pathogen Pseudomonas aeruginosa as model organisms. To assess the biofilm removal on fabrics, (1) a detergent-based, (2) enzyme-based, and (3) combined formulation of both detergent and enzymes (F1/2) were applied. Biofilms were analyzed microscopically (FE-SEM, SEM, 3D laser scanning- and epifluorescence microscopy), via a quartz crystal microbalance with mass dissipation monitoring (QCM-D) as well as plate counting of colonies. This study indicated that Pseudomonas spp. form robust biofilms on woven cellulose that can be efficiently removed via F1/2, proven by a significant reduction (p < 0.001) of viable bacteria in biofilms. Moreover, microscopic analysis indicated a disruption and almost complete removal of the biofilms after F1/2 treatment. QCM-D measurements further confirmed a maximal mass dissipation change after applying F1/2. The combination strategy applying both enzymes and detergent is a promising antibiofilm approach to remove bacteria from fabrics.

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Section: Quantification Of Remaining Living Bacteria On the Textile F...mentioning

confidence: 99%

Monitoring Growth and Removal of Pseudomonas Biofilms on Cellulose-Based Fabrics

et al. 2023

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“…By sampling and isolating the epiphytic microbiota of fresh apples, it was found that the proportion of fungi (79.0%) was much higher than that of bacteria (13.8%) [4], and the dominant spoilage fungi included Aspergillus niger (A. niger), Penicillium expansum, (P. expansum), Penicillium chrysogenum (Penicillium chrysogenum, P. chrysogenum) and Alternaria alternata (A. alternata), etc. [5][6][7][8]. Therefore, monitoring and providing early warning of apple spoilage have important practical significance, and can ensure the food safety of consumers and provide technical support for the healthy development of the apple industry.…”

Section: Introductionmentioning

confidence: 99%

Spoilage Monitoring and Early Warning for Apples in Storage Using Gas Sensors and Chemometrics

Yin

Jayan

Cai

et al. 2023

Foods

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In the process of storage and cold chain logistics, apples are prone to physical bumps or microbial infection, which easily leads to spoilage in the micro-environment, resulting in widespread infection and serious post-harvest economic losses. Thus, development of methods for monitoring apple spoilage and providing early warning of spoilage has become the focus for post-harvest loss reduction. Thus, in this study, a spoilage monitoring and early warning system was developed by measuring volatile component production during apple spoilage combined with chemometric analysis. An apple spoilage monitoring prototype was designed to include a gas monitoring array capable of measuring volatile organic compounds, such as CO2, O2 and C2H4, integrated with the temperature and humidity sensor. The sensor information from a simulated apple warehouse was obtained by the prototype, and a multi-factor fusion early warning model of apple spoilage was established based on various modeling methods. Simulated annealing–partial least squares (SA-PLS) was the optimal model with the correlation coefficient of prediction set (Rp) and root mean square error of prediction (RMSEP) of 0.936 and 0.828, respectively. The real-time evaluation of the spoilage was successfully obtained by loading an optimal monitoring and warning model into the microcontroller. An apple remote monitoring and early warning platform was built to visualize the apple warehouse’s sensors data and spoilage level. The results demonstrated that the prototype based on characteristic gas sensor array could effectively monitor and warn apple spoilage.

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Unravelling the potential of non-conventional yeasts and recycled brewers spent grains (BSG) for non-alcoholic and low alcohol beer (NABLAB)

Canonico,

Agarbati,

Comitini

et al. 2023

LWT

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Application of natamycin and farnesol as bioprotection agents to inhibit biofilm formation of yeasts and foodborne bacterial pathogens in apple juice processing lines

Cited by 4 publications

References 47 publications

Monitoring Growth and Removal of Pseudomonas Biofilms on Cellulose-Based Fabrics

Monitoring Growth and Removal of Pseudomonas Biofilms on Cellulose-Based Fabrics

Spoilage Monitoring and Early Warning for Apples in Storage Using Gas Sensors and Chemometrics

Unravelling the potential of non-conventional yeasts and recycled brewers spent grains (BSG) for non-alcoholic and low alcohol beer (NABLAB)

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