King Oyster, Eryngii · 2008 · Research Support, Non U.S. Gov'T
Low relevanceUnusual partially 3-O-methylated alpha-galactan from mushrooms of the genus Pleurotus.
Pleurotus eryngii
Key points
- Indistinguishable partially 3-O-methylated galactans were isolated from the edible basidiomycetes Pleurotus eryngii and Pleurotus ostreatoroseus
- They were obtained via successive aqueous extraction, freeze-thawing, precipitation with Fehling solution of soluble material, and ultrafiltration
- Mono- and bidimensional 13C and 1H-nuclear magnetic resonance spectroscopy (HMBC, HETEROTOCSY, COSY, and HMQC), and methylation analysis were used to determine their structures
- They were linear, partially 3-O-methylated, (1-->6)-linked alpha-d-galactans containing Gal and 3-Me-Gal, in a 3:1 molar ratio (GC-MS of alditol acetates)
Metadata-grounded summary
Citation abstract
Indistinguishable partially 3-O-methylated galactans were isolated from the edible basidiomycetes Pleurotus eryngii and Pleurotus ostreatoroseus. They were obtained via successive aqueous extraction, freeze-thawing, precipitation with Fehling solution of soluble material, and ultrafiltration. Mono- and bidimensional 13C and 1H-nuclear magnetic resonance spectroscopy (HMBC, HETEROTOCSY, COSY, and HMQC), and methylation analysis were used to determine their structures. They were linear, partially 3-O-methylated, (1-->6)-linked alpha-d-galactans containing Gal and 3-Me-Gal, in a 3:1 molar ratio (GC-MS of alditol acetates).
Citation
Carbonero ER, Gracher AH, Rosa MC, Torri G, Sassaki GL, Gorin PA, et al. (2008). Unusual partially 3-O-methylated alpha-galactan from mushrooms of the genus Pleurotus. Phytochemistry https://doi.org/10.1016/j.phytochem.2007.06.018 PMID: 17675195
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