Effects of the antimicrobial glabridin on membrane integrity and stress response activation in Listeria monocytogenes

Bombelli, Alberto; Araya-Cloutier, Carla; Boeren, Sjef; Vincken, Jean‑Paul; Abee, Tjakko; den Besten, Heidy M.W.

doi:10.1016/j.foodres.2023.113687

Food Research International

2024

DOI: 10.1016/j.foodres.2023.113687

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Effects of the antimicrobial glabridin on membrane integrity and stress response activation in Listeria monocytogenes

Alberto Bombelli,

Carla Araya-Cloutier,

Sjef Boeren

et al.

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2024

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Cited by 3 publications

References 77 publications

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Disinfectant efficacy of glabridin against dried and biofilm cells of Listeria monocytogenes and the impact of residual organic matter

Bombelli,

Araya-Cloutier,

Abee

et al. 2024

Food Research International

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Disinfectant efficacy of glabridin against dried and biofilm cells of Listeria monocytogenes and the impact of residual organic matter

Bombelli,

Araya-Cloutier,

Abee

et al. 2024

Food Research International

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Guarding the walls: the multifaceted roles of Bce modules in cell envelope stress sensing and antimicrobial resistance

George,

Bennett,

Orlando

2024

J Bacteriol

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Bacteria have developed diverse strategies for defending their cell envelopes from external threats. In Firmicutes, one widespread strategy is to use Bce modules—membrane protein complexes that unite a peptide-detoxifying ABC transporter with a stress response coordinating two-component system. These modules provide specific, front-line defense for a wide variety of antimicrobial peptides and small molecule antibiotics as well as coordinate responses for heat, acid, and oxidative stress. Because of these abilities, Bce modules play important roles in virulence and the development of antibiotic resistance in a variety of pathogens, including Staphylococcus , Streptococcus , and Enterococcus species. Despite their importance, Bce modules are still poorly understood, with scattered functional data in only a small number of species. In this review, we will discuss Bce module structure in light of recent cryo-electron microscopy structures of the B. subtilis BceABRS module and explore the common threads and variations-on-a-theme in Bce module mechanisms across species. We also highlight the many remaining questions about Bce module function. Understanding these multifunctional membrane complexes will enhance our understanding of bacterial stress sensing and may point toward new therapeutic targets for highly resistant pathogens.

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Three Licorice Extracts’ Impact on the Quality of Fresh-Cut Sweet Potato (Ipomoea batatas (L.) Lam) Slices

Xu,

Zhang,

Jin

et al. 2024

Foods

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The quality of fresh-cut produce, particularly sweet potatoes, is crucial for their value. Licorice extract is an optional additive in fresh-cut sweet potatoes. This study examined the impact of three licorice extracts (licorice acid, LA; licorice flavonoids, LF; and licorice polysaccharides, LP) on the quality of fresh-cut sweet potato slices (FCSPSs) for one week of storage. After one week of storage, the extracts showed varying effects on FCSPSs. LA and LF treatments reduced the area proportion of browning (APB), while LP treatments increased APB and decreased L* values. Antioxidant experiments revealed that LP treatments increased PPO and POD activity while reducing SOD activity. The concentrations of the three licorice extracts showed a strong negative correlation with SOD activity. In conclusion, LP harmed the appearance and antioxidant qualities of FCSPSs. LA and LF may be suitable additive components for FCSPSs, and 30 mg/mL LA and LF treatments were found to maintain the appearance and texture quality of FCSPSs during storage. Therefore, careful consideration should be given when using LP as a food additive for FCSPSs.

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Effects of the antimicrobial glabridin on membrane integrity and stress response activation in Listeria monocytogenes

Cited by 3 publications

References 77 publications

Disinfectant efficacy of glabridin against dried and biofilm cells of Listeria monocytogenes and the impact of residual organic matter

Disinfectant efficacy of glabridin against dried and biofilm cells of Listeria monocytogenes and the impact of residual organic matter

Guarding the walls: the multifaceted roles of Bce modules in cell envelope stress sensing and antimicrobial resistance

Three Licorice Extracts’ Impact on the Quality of Fresh-Cut Sweet Potato (Ipomoea batatas (L.) Lam) Slices

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