Abstract
A new isoflavone derivative compound 1 (psoralenone) was isolated from soybean inoculated with a marine fungus Aspergillus terreus C23-3, together with seven known compounds including isoflavones 2-6, butyrolactone I (7) and blumenol A (8). Their structures were elucidated by MS, NMR, and ECD. Psoralenone displayed moderate in vitro anti-inflammatory activity in the LPS-induced RAW264.7 cell model. Compound 2 (genistein) showed moderate acetylcholinesterase (AChE) inhibitory activity whereas compounds 2, 5 (biochanin A), 6 (psoralenol), and 7 exhibited potent larvicidal activity against brine shrimp. Compounds 3 (daidzein), 4 (4'-hydroxy-6,7-dimethoxyisoflavone), and 5-7 showed broad-spectrum anti-microbial activity, and compound 7 also showed moderate 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity.
Keywords:
Aspergillus terreus; Soybean; anti-inflammation; isoflavone; marine fungus.
MeSH terms
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4-Butyrolactone / analogs & derivatives
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4-Butyrolactone / isolation & purification
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4-Butyrolactone / pharmacology
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Acetylcholinesterase
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Animals
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Anti-Infective Agents / isolation & purification
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Anti-Infective Agents / pharmacology
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Anti-Inflammatory Agents / isolation & purification*
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Anti-Inflammatory Agents / pharmacology
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Aspergillus / chemistry*
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Aspergillus / physiology
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Cholinesterase Inhibitors / isolation & purification
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Cholinesterase Inhibitors / pharmacology
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Cyclohexanones / isolation & purification
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Cyclohexanones / pharmacology
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Free Radical Scavengers / isolation & purification
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Free Radical Scavengers / pharmacology
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Furocoumarins / isolation & purification
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Furocoumarins / pharmacology
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Genistein / isolation & purification
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Genistein / pharmacology
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Glycine max / chemistry*
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Glycine max / microbiology
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Inflammation
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Isoflavones / isolation & purification*
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Isoflavones / pharmacology
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Lipopolysaccharides / antagonists & inhibitors*
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Lipopolysaccharides / pharmacology
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Mice
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RAW 264.7 Cells
Substances
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Anti-Infective Agents
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Anti-Inflammatory Agents
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Cholinesterase Inhibitors
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Cyclohexanones
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Free Radical Scavengers
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Furocoumarins
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Isoflavones
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Lipopolysaccharides
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blumenol A
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daidzein
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butyrolactone I
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Genistein
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Acetylcholinesterase
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4-Butyrolactone
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biochanin A