AI Article Synopsis

  • Pleurotus eryngii is an edible mushroom from China known for its valuable polysaccharides with strong bioactive properties.
  • A study examined the digestion and fermentation characteristics of Pleurotus eryngii polysaccharide (PEP) using simulated models, revealing that PEP remains intact during digestion but is broken down during fermentation.
  • The fermentation process leads to the production of short-chain fatty acids (SCFAs) and alters gut microbiota by increasing the abundance of beneficial bacteria, suggesting PEP's potential as a functional food for improving gut health and preventing disease.

Article Abstract

Pleurotus eryngii is a valuable new edible mushroom variety cultivated on a large scale in China. The polysaccharides found in this mushroom are strong bioactive. This study used simulated digestion and fermentation model to study the digestion and fermentation characteristics of Pleurotus eryngii polysaccharide (PEP) and its effect on gut microbiota. The results showed that the molecular weight of PEP remained unchanged after simulated digestion, and the overall structure of PEP was not destroyed, indicating that PEP was not decomposed during digestion. However, during fermentation, PEP was degraded and utilized by intestinal flora to produce a variety of short-chain fatty acids (SCFAs), which reduced the pH value in fecal cultures. Meanwhile, PEP regulated the composition of intestinal flora, and the relative abundance of Firmicutes increased significantly. These suggests that PEP can be used as a functional food to promote intestinal health and prevent disease.

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http://dx.doi.org/10.1016/j.foodchem.2021.131303DOI Listing

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