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Phylogenetic Analysis and Nutritional Evaluation of Laetiporus Species in Korea

Summary

Researchers in Korea identified that ‘chicken of the woods’ mushrooms growing in the region are actually two specific species: Laetiporus versisporus and Laetiporus cremeiporus, not the species previously thought. These mushrooms are nutritionally impressive, containing substantial protein (9-18% depending on species) and high levels of beneficial β-glucans (15-35%), making them promising candidates as sustainable meat alternatives and functional food ingredients.

Background

Laetiporus species, commonly known as ‘chicken of the woods’, have been traditionally documented as L. sulphureus in Korea, but recent molecular evidence suggests different species composition. These fungi hold significant edible and medicinal value, with potential as sustainable protein sources and functional food ingredients.

Objective

To clarify the taxonomic identity of wild Laetiporus strains in Korea through phylogenetic analysis and evaluate their nutritional potential by quantifying protein content, amino acid profiles, and glucan composition in mycelial cultures.

Results

Phylogenetic analysis confirmed L. versisporus and L. cremeiporus as predominant native species in Korea rather than L. sulphureus. L. versisporus contained 11.3% protein and 25.7% β-glucan, while L. cremeiporus ranged from 9.1-18.5% protein (average 14.5%) and 15.1-34.8% β-glucan. All essential amino acids were detected in both species except methionine in L. versisporus.

Conclusion

This study establishes L. versisporus and L. cremeiporus as the primary Laetiporus species in Korea and demonstrates their substantial nutritional value as alternative protein sources and functional food ingredients. The high glucan content and favorable amino acid profiles support their development as sustainable protein sources.
  • Published in:Mycobiology,
  • Study Type:Molecular and Nutritional Analysis Study,
  • Source: PMID: 41522827, DOI: 10.1080/12298093.2025.2607864
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