Related Experiment Video
Updated: Jan 24, 2026
08:38
Oral Transmission of Listeria monocytogenes in Mice via Ingestion of Contaminated Food
Published on: May 6, 2013
20.0K
Current Research on Listeria monocytogenes in Foods: an Overview
1Bureau of Microbial Hazards, Food Directorate, Health and Welfare Canada, Ottawa, Ontario K1A 0L2.
Journal of Food Protection
|May 23, 2019
Summary
Controlling Listeria monocytogenes in food involves improving detection methods and developing new growth inhibitors. Research focuses on rapid testing kits and biological controls like bacteriocins, though regulatory hurdles remain.
Area of Science:
- Food Microbiology
- Food Safety
- Analytical Chemistry
Background:
- Listeria monocytogenes is a significant foodborne pathogen requiring effective control strategies.
- Progress has been made in both detection and growth inhibition methods since 1985.
Purpose of the Study:
- To review advancements in analytical methods for detecting Listeria monocytogenes.
- To explore novel strategies for controlling Listeria monocytogenes growth in food products.
Main Methods:
- Evaluation of conventional and rapid detection methods for Listeria monocytogenes.
- Investigation of the "hurdle" concept for controlling pathogen growth, focusing on biological controls like starter cultures and bacteriocins.
Main Results:
- Newer rapid detection kits offer improved specificity for Listeria monocytogenes.
- Biological controls, including bacteriocins from starter cultures, show promise in inhibiting Listeria monocytogenes.
- Regulatory acceptance of novel control methods remains a significant challenge.
Conclusions:
- Continued development of specific and reliable detection kits is crucial.
- Biological control strategies, particularly bacteriocins, offer potential for food safety.
- Addressing regulatory challenges is essential for implementing new Listeria monocytogenes control measures.
Related Concept Videos
01:27Controlled-Current Coulometry: Overview
670
Controlled current coulometry, also known as amperostatic coulometry, is a technique used in electrochemical analysis to measure the quantity of a substance through the controlled passage of current. It involves the application of a constant current to an electrochemical cell containing the analyte of interest. As the current flows through the cell, the analyte undergoes a redox reaction at the electrode surface, resulting in a charge transfer. By monitoring the time required for a certain...
670
01:10Electrical Current
6.9K
Electrical current is defined as the rate at which charge flows. When there is a large current present, such as that used to run a refrigerator, a large amount of charge moves through the wire in a small amount of time. If the current is small, such as that used to operate a handheld calculator, a small amount of charge moves through the circuit over a long period of time. The SI unit for current is the ampere (A), named for the French physicist André-Marie Ampère (1775–1836).
6.9K
01:30Regulation of Food Intake
2.3K
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
2.3K
01:27Microorganisms in Agriculture and Food industry
1.4K
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
1.4K
01:27Significance of Displacement Current
5.8K
A displacement current is analogous to a real current in Ampère's law, participating in Ampère's law the same way as the usual conduction current. However, it is produced by a changing electric field. Displacement current is defined in terms of a time-varying electric field, and also has an associated displacement current density. By adding a term accounting for displacement current, Maxwell modified the existing Ampère's law, which is now called generalized Ampère's law.
5.8K
01:28Current Trends in Nursing I
5.3K
Current trends in nursing include:
5.3K