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Probiotic Studies in Neonatal Mice Using Gavage
Published on: January 27, 2019
[Safety of probiotics--a review]
Zhuoyang Zhang1, Chang Liu, Xiaokui Guo
1Department of Microbiology and Parasitology, Shanghai Jiaotong University, School of Medicine, Shanghai 200025, China. sakuyaandy@163.com
Abstract:
Probiotics are live microorganisms. When they were administered in adequate amounts, they could have beneficial effects on the host. They are generally applied in food fermentation, industrial lactic acid production and medical care. With the appearance of commercial probiotics, more concerns were raised on the safety of probiotics. At present, there were four aspects of safety concerns on probiotics: pathogenicity and infectivity; deleterious metabolic activities; excessive immune response and potential gene transfer. Conventional toxicology and safety evaluation has limited value in the safety assessment of probiotics used in marketing food and drugs nowadays. Instead, multidisciplinary approaches are necessary for the systematical safety evaluation of probiotic strains. It may involve genomics, metabolismics, proteomics, among others. The toxigenic metabolic activity should be considered especially. We reviewed recent developments and research methods on the safety of probiotics. Safety evaluation of the lactic acid bacteria for human consumption must be assessed by proposing criteria standards, guidelines and regulations, for better applications for consumers.
Insights
Probiotics, live beneficial microorganisms, require rigorous safety evaluations beyond traditional toxicology. Multidisciplinary approaches are essential for assessing probiotic safety for consumers.
Area of Science:
- Microbiology and Food Science
- Probiotics research
- Live microbial products
Context:
- Probiotics are live microorganisms conferring health benefits when consumed in adequate amounts.
- Applications include food fermentation, industrial processes, and medical uses.
- Commercialization of probiotics necessitates thorough safety assessments.
Purpose:
- To review current safety concerns regarding probiotics.
- To highlight the limitations of conventional toxicology methods.
- To emphasize the need for advanced, multidisciplinary safety evaluation approaches.
Summary:
- Key safety concerns include pathogenicity, infectivity, harmful metabolic activities, immune overstimulation, and gene transfer.
- Conventional safety assessments are insufficient for modern probiotic products.
- Integrated approaches incorporating genomics, metabolomics, and proteomics are recommended.
- Specific attention should be paid to toxigenic metabolic activities.
Impact:
- Establishes the need for updated safety evaluation frameworks for probiotics.
- Advocates for systematic, multidisciplinary methods for comprehensive risk assessment.
- Calls for the development of clear standards, guidelines, and regulations for probiotic applications.
- Aims to enhance consumer safety and confidence in probiotic products.
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