Related Experiment Video
Updated: Jan 27, 2026
06:12
Quasi-metagenomic Analysis of Salmonella from Food and Environmental Samples
Published on: October 25, 2018
9.1K
Irradiation of Food for Public Health Protection 1
1Department of Food Science and Technology, University of Nebraska, Lincoln, Nebraska 68583.
Journal of Food Protection
|March 15, 2019
Summary
Food irradiation is a proven bactericidal technology with public health benefits, but commercial use is limited by public fear. Research shows irradiation effectively kills bacteria, including those harmful to fresh red meat, without posing public health risks.
Area of Science:
- Food science and technology
- Microbiology
- Public health
Background:
- Food irradiation, a long-standing technology, offers significant public health protection potential but faces limited commercial adoption.
- Public acceptance is hampered by misconceptions, including the erroneous classification of radiation as a food additive.
- Controversial research and misinterpretations have further fueled public apprehension regarding food irradiation.
Purpose of the Study:
- To review the bactericidal effectiveness of food irradiation.
- To assess the public health implications of bacteria surviving irradiation.
- To address concerns regarding the safety and efficacy of food irradiation.
Main Methods:
- Review of existing scientific literature on food irradiation and its effects on bacteria.
- Analysis of bacterial sensitivity to irradiation, focusing on specific groups like gram-negative psychrotrophic bacteria and Enterobacteriaceae.
- Evaluation of studies on bacterial resistance and survival post-irradiation.
Main Results:
- Irradiation demonstrates broad-spectrum bactericidal properties, with effectiveness varying by bacterial species.
- Gram-negative psychrotrophic bacteria and Enterobacteriaceae, relevant to fresh red meat quality, are particularly sensitive to irradiation.
- Data indicates that bacteria surviving irradiation doses below sterilization levels, even after laboratory manipulation, do not present a significant public health concern.
Conclusions:
- Food irradiation is an effective method for reducing bacterial load in food products.
- The technology poses no significant public health risks, despite public concerns and misconceptions.
- Further commercialization of food irradiation could enhance food safety and public health protection.
Related Concept Videos
01:16Zones of Protection
792
In power systems, the entire setup is divided into protective zones to isolate faults and protect the rest of the network. These zones include generators, transformers, buses, transmission lines, distribution lines, and motors. Each zone can be visualized as a separate room in a house, with each room protected by its own circuit breaker.
Protective zones are defined by closed dashed lines, containing one or more components. A key characteristic of these zones is the strategic placement of...
Protective zones are defined by closed dashed lines, containing one or more components. A key characteristic of these zones is the strategic placement of...
792
02:31Protection of Alcohols
8.1K
This lesson delves into the concept of protection and deprotection of a functional group fundamental to synthetic organic chemistry. These phenomena are explained in the context of aliphatic and aromatic alcohols.
Protection
It defines a protecting group as the masking agent to make the more reactive species inert to a given set of conditions. This concept is depicted via the illustration of liquid flow through different outlets in an assembly of pipes. The analogy helps to understand the role...
Protection
It defines a protecting group as the masking agent to make the more reactive species inert to a given set of conditions. This concept is depicted via the illustration of liquid flow through different outlets in an assembly of pipes. The analogy helps to understand the role...
8.1K
01:27Protecting Self-Esteem
204
Self-esteem, a central component of psychological well-being, is actively maintained through various cognitive and behavioral strategies. Individuals employ specific mechanisms to preserve a positive self-concept and mitigate threats to their self-worth, particularly in contexts involving social evaluation or personal feedback. Four primary techniques are commonly used to sustain self-esteem.Manipulating AppraisalsOne prominent strategy involves manipulating appraisals from others. Individuals...
204
01:23Radial System Protection
436
Radial systems employ time-delay overcurrent relays to reduce load interruptions. When a fault occurs, the nearest breaker opens first, while upstream breakers remain closed due to longer delay settings. This approach ensures minimal disruption to the rest of the system.
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
436
01:21Health Literacy
5.3K
Health literacy is an individual's or a community's capacity to comprehend, receive, read, and use relevant healthcare information and services. The World Health Organization (WHO, 2018) defines health literacy as the cognitive and social skills that determine the ability of individuals to gain access to, understand, and use information in ways that promote and maintain good health. As a result, the WHO helps individuals manage long-term health concerns, participate in preventative...
5.3K
01:30Regulation of Food Intake
2.8K
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...
2.8K