[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

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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