Investigation of synergistic antibacterial effect of organic acids and ultrasound against pathogen biofilms on lettuce

Turhan, Emel Ünal; Polat, Süleyman; Erginkaya, Zerrin; Konuray, Gözde

doi:10.1016/j.fbio.2022.101643

Cited by 18 publications

(10 citation statements)

References 37 publications

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“…However, in the present study, no synergic effect was observed in the combination of US and organic acids on the Salmonella enterica Typhimurium inactivation. In contrast, Turhan et al [ 33 ] observed that organic acid treatment combined with US produced mainly synergistic effects, and the highest value on the surface of lettuce was achieved when US and citric acid for 30 min were applied. According to Mendoza et al [ 7 ], using a single technique is not sufficient for biofilm removal.…”

Section: Resultsmentioning

confidence: 95%

“…According to Mendoza et al [ 7 ], using a single technique is not sufficient for biofilm removal. Turhan et al [ 33 ] mentioned that the combination of ultrasound with other processes produces synergistic and antagonistic impacts against pathogens. Ultraviolet light treatment (30 mW/cm 2 ) combined with 80 mg/L of PAA, a recommended commercial practice for cleaning fresh produce, achieved significantly higher Salmonella spp.…”

Section: Resultsmentioning

confidence: 99%

“…Decontamination treatments in fresh produce could affect food quality, and methods should preserve characteristics at appropriate levels [ 33 ]. Regarding the physicochemical parameters ( Table 2 ), both concentrations of treatments with AA, alone or associated with ultrasound, significantly reduced ( p ≤ 0.05) the pH of the samples concerning non-sanitized kale.…”

Section: Resultsmentioning

confidence: 99%

“…Excessive water loss due to the transpiration of the vegetal tissue can contribute to the loss of mass and lead to nutritional losses, wilting, and changes in texture and aroma. According to Turhan et al [ 33 ], US treatment can affect the firmness of fruits and vegetables, and different results could be associated with the processing conditions, food matrix, variety, maturity stage, intensity, and time of US.…”

Section: Resultsmentioning

confidence: 99%

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Ultrasound, Acetic Acid, and Peracetic Acid as Alternatives Sanitizers to Chlorine Compounds for Fresh-Cut Kale Decontamination

et al. 2022

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Chlorinated compounds are usually applied in vegetable sanitization, but there are concerns about their application. Thus, this study aimed to evaluate ultrasound (50 kHz), acetic acid (1000; 2000 mg/L), and peracetic acid (20 mg/L) and their combination as alternative treatments to 200 mg/L sodium dichloroisocyanurate. The overall microbial, physicochemical, and nutritional quality of kale stored at 7 °C were assessed. The impact on Salmonella enterica Typhimurium was verified by plate-counting and scanning electron microscopy. Ultrasound combined with peracetic acid exhibited higher reductions in aerobic mesophiles, molds and yeasts, and coliforms at 35 °C (2.6; 2.4; 2.6 log CFU/g, respectively). Microbial counts remained stable during storage. The highest reduction in Salmonella occurred with the combination of ultrasound and acetic acid at 1000 mg/L and acetic acid at 2000 mg/L (2.8; 3.8 log CFU/g, respectively). No synergistic effect was observed with the combination of treatments. The cellular morphology of the pathogen altered after combinations of ultrasound and acetic acid at 2000 mg/L and peracetic acid. No changes in titratable total acidity, mass loss, vitamin C, or total phenolic compounds occurred. Alternative treatments presented equal to or greater efficacies than chlorinated compounds, so they could potentially be used for the decontamination of kale.

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Ultrasound, Acetic Acid, and Peracetic Acid as Alternatives Sanitizers to Chlorine Compounds for Fresh-Cut Kale Decontamination

et al. 2022

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“…Organic acids have diverse applications including in foods, dyes, refrigerants, pharmaceuticals, beverages, treatments in the oil and gas industry, and extraction of metals. − A recently proposed application of organic acids is for recycling of rare earth elements (REEs) from feedstocks such as neodymium–iron–boron (Nd–Fe–B) magnet waste. , Clean-energy technologies such as electric vehicles and wind turbines are dependent on REEs, but REEs are subject to significant supply risks, which pose a crucial constraint on development of a green, low-carbon economy. The utilization of biologically produced organic acids could facilitate sustainable recycling of critical materials relative to conventional technology alternatives. − In particular, gluconic acid (GA) has been shown to be effective in leaching of REEs from industrial wastes …”

Section: Introductionmentioning

confidence: 99%

Techno-economic Analysis and Life Cycle Assessment of Gluconic Acid and Xylonic Acid Production from Waste Materials

Balchandani,

Alipanah,

Barboza

et al. 2023

ACS Sustainable Chem. Eng.

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Synergistic antimicrobial system based on nisin and α-hydroxy organic acids

et al. 2023

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Synergistic antimicrobial is a promising way to overcome microbial contamination in food and drugs. In the study, the synergistic effect between nisin and each α-hydroxy acid on E. coli and S. aureus was investigated. The experimental results showed that the combined antibacterial ability of nisin-citric acid system was the most prominent. The FCI index also indicated that the combination of nisin and citric acid had synergistic effects on E. coli. When nisin was combined with citric acid, the inhibition rates of E. coli and S. aureus were increased to 4.43 and 1.49 times, respectively. Nisin-citric acid complex system could effectively slow down the proliferation of S. aureus and E. coli at lower concentrations, and can quickly destroy the cell membrane after 4 hours of action. Therefore, the combination of nisin and citric acid is expected to be a potential solution for food and drug preservation. Signi cance And Impact Of The StudyThe anti bacterial effect of combined nisin and α-hydroxy acid treatment exceeded that of either treatment alone.The combination of nisin and citric acid presented good synergistic antibacterial effect on E. coli.The combined action of nisin and citric acid enhanced the destruction and inhibition against E. coli.

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Investigation of synergistic antibacterial effect of organic acids and ultrasound against pathogen biofilms on lettuce

Cited by 18 publications

References 37 publications

Ultrasound, Acetic Acid, and Peracetic Acid as Alternatives Sanitizers to Chlorine Compounds for Fresh-Cut Kale Decontamination

Ultrasound, Acetic Acid, and Peracetic Acid as Alternatives Sanitizers to Chlorine Compounds for Fresh-Cut Kale Decontamination

Techno-economic Analysis and Life Cycle Assessment of Gluconic Acid and Xylonic Acid Production from Waste Materials

Synergistic antimicrobial system based on nisin and α-hydroxy organic acids

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