Inhibition of Biofilm Formation in Yersinia
                        enterocolitica by Edible Plant Extracts Including Polygoni
                    Multiflori Radix

Ham, Youngseok; Kim, Tae‐Jong

doi:10.5658/wood.2022.50.6.448

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…Former studies have suggested that low concentrations of cinnamaldehyde (0.078 mg/mL) can repress the production of Y. enterocolitica biofilm [ 16 ]. In a previous study, it was shown that extracts from 12 edible plants inhibited the biofilm production of Y. enterocolitica [ 44 ]. Natural antibacterial agents cause abnormal expression of a few important genes, including luxS , glgC , envZ , ompF , kdpD , and cydB , resulting in the damage of the biofilm [ 45 ].…”

Section: Resultsmentioning

confidence: 99%

Using Essential Oils to Reduce Yersinia enterocolitica in Minced Meat and in Biofilms

Vidaković Knežević,

Knežević,

Vranešević

et al. 2024

Foods

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Yersiniosis, one of the leading foodborne infections in the European Union, is caused by Yersinia enterocolitica. In this study, the antibacterial and antibiofilm effects of cinnamon (Cinnamomum zeylanicum Nees), clove (Syzygium aromaticum L.), oregano (Origanum vulgare L.), rosemary (Rosmarinus officinalis L.), thyme (Thymus vulgaris L.), and winter savory (Satureja montana L.) essential oils were investigated against Y. enterocolitica strains belonging to the bioserotype 4/O:3. Cinnamon essential oil showed the highest antibacterial activity, with an MIC value 0.09 µL/mL, followed by oregano and thyme essential oils, with MIC values from 0.09 to 0.18 µL/mL, and from 0.18 to 0.23 µL/mL, respectively. Thyme essential oil at 0.23 µL/g (MIC) and at 0.46 µL/g (2MIC) significantly (p < 0.05) reduced the number of Y. enterocolitica by 0.38 log CFU/g and 0.64 log CFU/g, respectively, in minced pork meat during storage at 4 °C for 4 days. The Y. enterocolitica strains formed biofilms at 15 °C and 37 °C in tryptic soy broth and Luria–Bertani broth, while no biofilms were obtained at 5 °C, and in meat broth nutrient media. Applying the minimum bactericidal concentrations of cinnamon, clove, oregano, rosemary, thyme, and winter savory essential oils on preformed biofilms led to significant reductions being observed in the range from 45.34% to 78.89%. A scanning electron microscopy assay showed the devastating impact of oregano and thyme essential oils on the morphology of Y. enterocolitica bacterial cells. In conclusion, the results of this study show that essential oils possess high anti-Yersinia and antibiofilm effects.

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Section: Resultsmentioning

confidence: 99%

Using Essential Oils to Reduce Yersinia enterocolitica in Minced Meat and in Biofilms

Vidaković Knežević,

Knežević,

Vranešević

et al. 2024

Foods

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“…Previous studies have also reported the potential biological activity of extracts soluble in various polar solvents (i.e. methanol, ethanol, and distilled water) from several species such as Azadirachta excelsa seeds and Guibourtia tessmanii bark for anti-termite (Adfa et al, 2023;Ella Nkogo et al, 2022), herbal plants of Phellodendri cortex, Magnoliae cortex and some plants for antifungi (Na and Kim, 2022;Yoon and Kim, 2023), 12 herbal plants for antimicrobial resistance (Ham and Kim, 2022), Quercus gilva and Citrus × natsudaidai for antioxidant activity (Huh et al, 2022;Yang et al, 2022a) and the Lauraceae family for anti-asthmatic activity (Yang et al, 2022b).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Lipophilic Constituents Related to Heartwood Formation in Young Swietenia mahagoni (L.) Jacq Trees

ARISANDI,

TAKAHASHI,

NIRSATMANTO

et al. 2024

J. Korean Wood Sci. Technol.

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Swietenia mahagoni is one of the commercial timbers in Indonesia. Mahogany heartwood is an important characteristic as it relates to the natural durability and aesthetics of the wood. Lipophilic extractives are known to be involved in the heartwood formation process. Therefore, this study aims to determine the lipophilic compounds associated with heartwood formation. The n-hexane extract from sapwood and heartwood samples (1 to 5 years) was analyzed by gas chromatography-mass spectrometry. The results showed that the content of n-hexane extract ranged from 0.76% to 2.45% based on dry wood. The main group of compounds identified in the lipophilic fraction consisted of sterols (β-sitosterol, stigmasterol, campasterol, and cyclolaudenol), fatty acids (palmitic, oleic, linoleic, and stearic acid), and hydrocarbons (pentadecane, 1-octadecane, hexadecane, cyclotetracosane, cycloeicosane, and cyclooctacosane) after heartwood formation. In addition, the hydrocarbon fraction was the largest, followed by sterols, fatty acids, and 1-heneicosanol. In the radial variation, the distribution of fatty acids was greater in the sapwood than in the heartwood (4-year-old). However, the reverse pattern was found at the age of 5 years. The lipophilic fraction was generally more abundant in the heartwood compared to the sapwood, especially at 5 years of age, with much higher levels than when the heartwood was forming (4 years). These findings show that when the heartwood formation begins, the lipid composition was not fully metabolized at the beginning of heartwood formation compared to 5-year-old trees.

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Synergistic Growth Inhibition of Herbal Plant Extract Combinations against Candida albicans

Yoon¹,

Kim²

2023

J. Korean Wood Sci. Technol.

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http://www.woodj.org -145 -1. INTRODUCTION Candida spp. are resident fungi isolated from skin, digestive tract, vagina, and oral cavity (Hedderwick and Kauffman, 1997). They are generally harmless to humans, but their overgrowth can cause infectious diseases. Among Candida spp. causing pathogenic infections, Candida albicans is the species most frequently isolated from clinical specimens (Kumamoto and Vinces, 2005). Candida spp., including C. albicans, exist in up to 75% of microbiota in the oral cavity (Calderone and Clancy, 2011), and oral candidiasis can occur due to overgrowth or infection (Epstein, 1990). Vulvovaginal candidiasis is a common disease suffered by approximately 75% of women at least once in their lifetime (Sobel, 1992(Sobel, , 1997. It has been reported that more than 90% of cases of vulvovaginal candidiasis are caused by C. albicans (Sobel, 2007). Candida spp. have also been reported to cause bloodstream infections in patients in intensive care units (

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Inhibition of Biofilm Formation in Yersinia enterocolitica by Edible Plant Extracts Including Polygoni Multiflori Radix

Cited by 3 publications

References 26 publications

Using Essential Oils to Reduce Yersinia enterocolitica in Minced Meat and in Biofilms

Using Essential Oils to Reduce Yersinia enterocolitica in Minced Meat and in Biofilms

Analysis of Lipophilic Constituents Related to Heartwood Formation in Young Swietenia mahagoni (L.) Jacq Trees

Synergistic Growth Inhibition of Herbal Plant Extract Combinations against Candida albicans

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