Synergistic antimicrobial activity of plasma-activated water and propylparaben: Mechanism and applications for fresh produce sanitation

Liu, Xiao; Li, Yunfei; Wang, Shaodan; Huangfu, Lulu; Zhang, Mengyan; Xiang, Qisen

doi:10.1016/j.lwt.2021.111447

Cited by 22 publications

(8 citation statements)

References 38 publications

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“…After being treated with 0.03125% CEO, p ‐HPCD (1.3 MPa) and p ‐HPCD + CEO at 30 °C for 3 h, respectively, the intracellular ROS level in S . typhimurium was measured with a ROS assay kit (Beyotime Biotechnology, Shanghai, China) according to the manufacturer (Liu et al ., 2021). The fluorescence intensity was detected by a Spark ® multimode microplate reader (Tecan Group, Männedorf, Zürich, Switzerland) at wavelengths of 485 nm Ex and 535 nm Em.…”

Section: Methodsmentioning

confidence: 99%

“…Bacteria suspensions were mixed with 3 lmol/L PI solution and incubated at room temperature in the dark for 15 min. DiBAC 4 (3) probe was used to measure the membrane potential according to the modified method described by Liu et al (2021). Briefly, bacteria suspensions were incubated in DiBAC 4 (3) solution (2.5 lg/mL) in 0.01 mol/L of PBS with 4 mmol/L of ethylenediaminetetraacetic acid (EDTA) at 37 °C for 15 min in dark.…”

Section: Membrane Integrity Analysismentioning

confidence: 99%

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Synergetic effect of petit‐high pressure carbon dioxide combined with cinnamon (Cinnamomum cassia) essential oil against Salmonella typhimurium

Niu

Zhang

Jie

et al. 2022

Int J of Food Sci Tech

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Summary This work aimed to evaluate the synergistic effect of petit‐high pressure carbon dioxide (p‐HPCD) and cinnamon (Cinnamomum cassia) essential oil (CEO) against Salmonella typhimurium. The results showed synergetic antibacterial activity of p‐HPCD and CEO. After treatment with p‐HPCD and CEO with a final concentration of 0.03125% under 1.3 MPa at 30 °C for 5 h, the population of S. typhimurium was decreased by 6.22 log10 CFU/mL, significantly higher than p‐HPCD or CEO alone. The combined treatment induced severe cellular changes in S. typhimurium, including cell membrane disruption, decreased intracellular protein and ATP, and intracellular reactive oxygen species (ROS) generation. Moreover, p‐HPCD + CEO treatment significantly inhibited the expression of virulence genes including fliC, hilA, invI and ssrA, indicating that p‐HPCD + CEO can reduce the production of virulence factors in S. typhimurium. This study provides a new approach to the application of p‐HPCD and CEO in food processing and preservation.

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Section: Methodsmentioning

confidence: 99%

Section: Membrane Integrity Analysismentioning

confidence: 99%

Synergetic effect of petit‐high pressure carbon dioxide combined with cinnamon (Cinnamomum cassia) essential oil against Salmonella typhimurium

Niu

Zhang

Jie

et al. 2022

Int J of Food Sci Tech

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“…The native microbes present on rocket leaves can be inactivated by 1.7–3 log CFU/g after washing with PAW for 2–5 min [ 9 ]. A synergistic effect was observed against E. coli O157:H7 after treatment with PAW plus propylparaben [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Processing of Fresh-Cut Potato Using Plasma-Activated Water Prepared by Decreasing Discharge Frequency

Aihaiti,

Maimaitiyiming,

Wang

et al. 2023

Foods

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As a novel non-thermal processing method, the concentration of active compounds in plasma-activated water (PAW) is usually adjusted by changing the voltage and preparation time. We recently adjusted the discharge frequency and found that the PAW properties were improved. In this study, fresh-cut potato was selected as a model, and PAW was prepared using a frequency of 200 Hz (200 Hz-PAW). Its efficacy was compared with that of PAW prepared using 10 kHz. The results showed that the ozone, hydrogen peroxide, nitrate, and nitrite concentrations in 200 Hz-PAW were 5.00-, 3.62-, 8.05-, and 1.48-fold higher than those of 10 kHz-PAW. PAW inactivated the browning-related enzymes polyphenol oxidase and peroxidase, lowering the browning index and inhibiting browning; 200 Hz-PAW exhibited the lowest of these parameters during storage. In addition, PAW induced PAL to promote phenolic synthesis and increase antioxidant activity to delay malondialdehyde accumulation; 200 Hz-PAW exhibited the highest of these parameters. Moreover, 200 Hz-PAW had the lowest weight loss and electrolyte leakage rates. Furthermore, microbial analysis showed that the lowest aerobic mesophilic, mold, and yeast counts during storage were observed in the 200 Hz-PAW group. These results suggest that frequency-controlled PAW has the potential to treat fresh-cut produce.

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“…The voltage-sensitive dye DiBAC 4 (3) was used to determine the changes in the transmembrane potential of P . deceptionensis CM2 cells [ 28 ]. P .…”

Section: Methodsmentioning

confidence: 99%

Antibacterial activity and mechanism of cinnamon essential oil nanoemulsion against Pseudomonas deceptionensis CM2

Zhao,

Ma,

Wang

et al. 2023

Heliyon

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Synergistic antimicrobial activity of plasma-activated water and propylparaben: Mechanism and applications for fresh produce sanitation

Cited by 22 publications

References 38 publications

Synergetic effect of petit‐high pressure carbon dioxide combined with cinnamon (Cinnamomum cassia) essential oil against Salmonella typhimurium

Synergetic effect of petit‐high pressure carbon dioxide combined with cinnamon (Cinnamomum cassia) essential oil against Salmonella typhimurium

Processing of Fresh-Cut Potato Using Plasma-Activated Water Prepared by Decreasing Discharge Frequency

Antibacterial activity and mechanism of cinnamon essential oil nanoemulsion against Pseudomonas deceptionensis CM2

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