Journal
MOLECULES
Volume 23, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/molecules23071706
Keywords
Volvariella volvacea; polysaccharide; ultrasound-assisted extraction; optimization; response surface methodology; structural characterization
Funding
- Natural Science Foundation of China [31771961]
- Shanghai Agriculture Applied Technology Development Program [9]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Science & Technology Platform Construction Program of Jiangxi Province
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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The aims of the present study were to optimize the operational parameters to maximize the yield of ultrasound-assisted polysaccharide extraction from Volvariella volvacea (straw mushroom) fruiting bodies by using for the first time one-factor-at-a-time and three-level Box-Behnken factorial designs. A maximum polysaccharide yield of 8.28 +/- 0.23% was obtained under the optimized conditions of ultrasound power of 175 W, extraction temperature of 57 degrees C, extraction time of 33 min, and the ratio of liquid to raw material of 25:1, respectively. Compared to the hot-water extraction, the ultrasound-assistance favored the extraction of polysaccharides from V. volvacea for its higher polysaccharide yield and efficiency. Further preliminary polysaccharide structural characterization indicated that ultrasound treatment affected the monosaccharide compositions and ratios, and molecular weight range of polysaccharides extracted from V. volvacea.
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