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Related Concept Videos

Methods for Controlling Microbial Growth01:29

Methods for Controlling Microbial Growth

Microbial growth control refers to various methods employed to inhibit, reduce, or eliminate microorganisms to ensure safety and hygiene across different settings. These methods are categorized based on the target environment and the level of microbial control required.Biocides are versatile agents designed to control microorganisms by either inhibiting their growth or outright killing them. These agents work through various physical, chemical, mechanical, or biological mechanisms. The...
Methods of Classification and Identification01:28

Methods of Classification and Identification

Bacterial identification relies on a diverse array of techniques to classify and understand microorganisms, each tailored to uncover specific characteristics. Traditional morphological approaches, while still valuable, are limited for closely related or structurally simple organisms. Modern methods integrate biochemical, serological, genetic, and advanced molecular tools to achieve greater accuracy.Morphological and Biochemical TechniquesMorphological characteristics, such as cell shape and...
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Methods to Assess Microbial Populations

Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a visible...
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Microbial Biosensors

Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
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Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...

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16 Methods for Detecting Microbial Pathogens in Food and Water.

Charles W Kaspar1, Carmen Tartera1

  • 1University of Maryland, Department of Microbiology, College Park, MD, USA.

Methods in Microbiology
|April 15, 2024
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New nucleic acid and antibody probes offer rapid detection of foodborne pathogens and indicator organisms. These advanced methods bypass traditional culturing, improving identification of difficult-to-grow bacteria and viruses in food and water safety testing.

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Area of Science:

  • Microbiology
  • Food Science
  • Environmental Science

Background:

  • Traditional methods for detecting microorganisms in food and water rely on culture techniques, which are time-consuming.
  • Advancements in detection methodologies are crucial for identifying emerging food- and waterborne pathogens.
  • Rapid and accurate identification of microbial contaminants is essential for public health and safety.

Purpose of the Study:

  • To review and highlight novel methodologies for the detection of bacteria and viruses.
  • To focus on nucleic acid and antibody probes as alternatives to traditional culture-based identification.
  • To discuss the application of these methods for monitoring pathogens and indicator organisms in food and water.

Main Methods:

  • Utilizes nucleic acid probes (DNA probes) for specific microbial identification.
  • Employs antibody probes for detecting microbial presence.
  • Discusses the potential to circumvent the need for culturing microorganisms prior to identification.

Main Results:

  • Nucleic acid probes enable the identification of viruses and bacteria that are difficult or impossible to cultivate.
  • These probes serve as valuable diagnostic reagents for identifying human and animal pathogens.
  • DNA probes are effective tools for monitoring microorganisms in food and environmental samples.

Conclusions:

  • Newly developed nucleic acid and antibody probe methods offer rapid and specific detection of microorganisms.
  • These advanced techniques have the potential to significantly improve food and water safety testing protocols.
  • The application of probe-based methods enhances the ability to identify and monitor a wider range of microbial contaminants.