Recent development in Se-enriched yeast, lactic acid bacteria and bifidobacteria

Area of Science:

• Microbiology
• Nutritional Science
• Biotechnology

Background:

• Endemic selenium deficiency poses a significant global nutritional challenge.
• Current organic selenium synthesis methods are costly and inefficient.
• Microbial biotransformation of inorganic selenium into organic forms presents a viable alternative.

Approach:

• This review details the characteristics and Se enrichment mechanisms of Se-enriched yeast, lactic acid bacteria, and bifidobacteria.
• It classifies Se products metabolized by these probiotics, including Se nanoparticles (SeNPs) and selenoproteins, and assesses their bioactivities.
• Factors influencing probiotic Se enrichment capacity and their applications are summarized.

Key Points:

• Se-enriched probiotics convert inorganic selenium into bioavailable organic forms.
• Metabolites include Se nanoparticles and selenoproteins with assessed bioactivities.
• Probiotic Se enrichment is influenced by various factors, enabling diverse applications.

Conclusions:

• Se-enriched probiotics are valuable in animal feed, food additives, and functional foods.
• These probiotics demonstrate significant potential for future biomedical applications.
• Microbial selenium enrichment offers a sustainable and scalable approach to addressing selenium deficiency.