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Chemical Agents for Microbial Control01:27

Chemical Agents for Microbial Control

Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
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Biological Methods for Microbial Control

Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
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Microbes in the Production of Fermented Foods

Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
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Penicillin, one of the earliest and most widely used antibiotics, is produced industrially by the filamentous fungus Penicillium chrysogenum. Large stirred-tank bioreactors ranging from tens to hundreds of thousands of liters maintain tightly controlled temperature, pH, and dissolved oxygen conditions to support fungal metabolism and maximize antibiotic yield. Penicillin is a secondary metabolite, synthesized primarily during the stationary growth phase, which requires a carefully managed...
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The oral microbiome includes a complex ecosystem comprising over 700 microbial species, identified through genomic sequencing and culture-based analyses to date. This community includes a core microbiome, found universally among individuals, and a variable component influenced by environmental factors such as diet, lifestyle, and host genetics. Site-specific conditions, including oxygen gradients, pH levels, and nutrient availability, determine the spatial distribution of these microorganisms...
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Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...

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通过Cinnamaldehyde与Streptococcus mutans作斗争,使用大自然.

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概括

跨甲 (TC) 有效地对抗菌突变菌,这是导致牙的主要原因. 这种植物化学物质显示出强大的抗菌和抗菌膜作用,提供了一种有前途的天然策略来对抗牙损伤.

关键词:
在S. mutans中发生变异.它是一种抗菌药物,具有抗菌作用.抗生素膜是一种抗生素膜.预制的生物膜.超木甲的使用方法

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科学领域:

  • 微生物学 微生物学
  • 生物化学 生物化学
  • 牙科研究 牙科研究

背景情况:

  • 突变性链球菌 (Streptococcus mutans) 是主要的牙变质细菌,负责牙去矿化和牙变质的形成.
  • 它的酸性和酸性特性对其毒性有很大贡献.
  • 植物化学物质,如肉中的跨肉甲 (TC),以其广泛的抗菌活性而闻名.

研究的目的:

  • 为了研究跨甲 (TC) 抗菌和抗菌膜的疗效,针对突变性链球菌.
  • 为了确定TC对S. mutans的最小杀菌度 (MBC) 和亚MBC影响.

主要方法:

  • 在体外评估TC对浮游生物S. mutans的抗菌活性.
  • 使用微板光谱仪确定TC的最小杀菌度 (MBC).
  • 通过使用盘共聚焦显微镜 (SDCM) 和高分辨率扫描电子显微镜 (HR-SEM) 分析的盘盘上TC的亚MBC剂量的抗菌膜效应的评估.

主要成果:

  • 对浮游生物S. mutans的TC的最小杀菌度 (MBC) 确定为2500μg/mL.
  • 甲基二硫氧化物 (DMSO) 溶剂对照没有表现出抗菌作用.
  • 亚MBCTC剂量,特别是≥625μg/mL,显示出针对S. mutans.的显著抗菌膜活性.

结论:

  • 跨甲 (TC) 具有强大的抗菌和抗菌膜特性,可对抗突变性菌株菌株.
  • 625μg/mL的TC度被确定为这些活动中最有效的亚MBC剂量.
  • TC 是一种有前途的天然化合物,可用于开发针对菌和牙的新策略.