Physicochemical properties and fermentation characteristics of a novel polysaccharide degraded from Flammulina velutipes residues polysaccharide
- Author: mycolabadmin
- 11/29/2024
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Summary
Researchers developed a new method to break down a large mushroom polysaccharide from golden needle mushroom plant residues into smaller, more useful molecules. The smaller version works better as an antioxidant and helps feed beneficial gut bacteria, producing beneficial compounds that support digestive health. This discovery could lead to new functional food products and health supplements using mushroom waste that would otherwise be discarded.
Background
Flammulina velutipes residues polysaccharide (FVRP) is a high molecular weight polysaccharide with diverse bioactivities, but its high molecular weight limits cellular absorption and pharmaceutical applications. Degradation methods can reduce molecular weight and improve bioavailability.
Objective
To degrade FVRP using an ultrasonic-assisted H2O2-Fe3+ method for the first time and evaluate the physicochemical properties, antioxidant capacity, and prebiotic potential of the resulting degraded polysaccharide (FVRPF).
Results
FVRPF had reduced molecular weight (256.06 kDa versus 335.29 kDa), smaller particle size, and stronger antioxidant capacity than FVRP. FVRPF was readily degradable by human gut microbiota and increased production of short-chain fatty acids (SCFAs), particularly propionic and butyric acids, while maintaining chemical structure integrity.
Conclusion
Ultrasonic-assisted H2O2-Fe3+ degradation effectively reduces FVRP molecular weight while enhancing antioxidant and prebiotic properties. FVRPF shows promising potential as a functional food ingredient and pharmaceutical application with demonstrated ability to modulate gut microbiota composition and promote SCFA production.
- Published in:Food Chemistry X,
- Study Type:Experimental Research,
- Source: PMC11665304, PMID: 39717408