Algicide Constituents from Swinglea glutinosa

Oscillatoria perornata, a cyanobacterium (blue-green alga), common in catfish production ponds in the southeastern United States, produces the monoterpene 2-methylisoborneol (MIB), which is absorbed into catfish flesh and imparts a “musty” taste, rendering them unpalatable and unmarketable. Algicide...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 2009-11, Vol.57 (22), p.10632-10635
Main Authors: Purcaro, Raffaella, Schrader, Kevin K, Burandt, Charles, DellaGreca, Marina, Meepagala, Kumudini M
Format: Article
Language:English
Subjects:
Acridones - chemistry
Acridones - isolation & purification
Acridones - pharmacology
algicides
Animals
Anti-Bacterial Agents - pharmacology
Aquaculture - methods
Bioactive Constituents
Biological and medical sciences
Bornanes - metabolism
catfish
Catfishes - growth & development
Catfishes - metabolism
Coumarins - chemistry
Coumarins - isolation & purification
Coumarins - pharmacology
Cyanobacterium
Food industries
Fundamental and applied biological sciences. Psychology
Ictalurus punctatus
Magnetic Resonance Spectroscopy
off flavors
Oscillatoria
Oscillatoria - drug effects
Oscillatoria - metabolism
plant extracts
Plant Extracts - chemistry
Plant Extracts - pharmacology
Plant Roots - chemistry
roots
Rutaceae - chemistry
Swinglea
Swinglea glutinosa
Taste
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Summary:Oscillatoria perornata, a cyanobacterium (blue-green alga), common in catfish production ponds in the southeastern United States, produces the monoterpene 2-methylisoborneol (MIB), which is absorbed into catfish flesh and imparts a “musty” taste, rendering them unpalatable and unmarketable. Algicides that are currently in the commercial market to control O. perornata have broad-spectrum toxicity toward other beneficial phytoplankton, such as the green alga Selenastrum capricornutum, as well as low biodegradability. As part of our continuing efforts to search for natural-product-based algicides, the ethyl acetate extract of the roots of Swinglea glutinosa was investigated. This report describes isolation and structure elucidation of one novel coumarin, two known coumarins, and nine acridone alkaloids from S. glutinosa root extracts and the evaluation of these compounds for algicidal activity against O. perornata.
ISSN:0021-8561
1520-5118
DOI:10.1021/jf902561c