Isolating and Identifying Organic Acids from Portulaca oleracea and Determining Their Anti-cyanobacterial Activity
Hongqiang Wang1, Lieyu Zhang2, Yangyang Wang1
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1School of Municipal and Environmental Engineering, Henan University of Urban Construction,
Pingdingshan, Henan province 467036, China
2State Key Laboratory of Environmental Criteria and Risk Assessment,
Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Submission date: 2016-06-28
Final revision date: 2016-08-03
Acceptance date: 2016-08-03
Online publication date: 2017-01-31
Publication date: 2017-01-31
Pol. J. Environ. Stud. 2017;26(1):441–445
We explored the possibility of using allelochemicals from terrestrial plants to solve the problem of cyanobacterial blooms in eutrophicated shallow lakes. The highly effective inhibitory allelochemicals of purslane (Portulaca oleracea L.) and purslane seeds were extracted and purified through a series of procedures, and the chemical components of the purified extracts were analyzed by gas chromatographymass spectrometry (GC-MS). The extracts contained 12 fatty acids and three phenolic acids, of which nine compounds were found to be inhibitors of harmful cyanobacteria. The inhibitory ratios of the purified extracts of purslane and purslane seeds on M. aeruginosa were 97.4 and 81.6%, respectively, when the cyanobacterial were exposed under 15.0 mg/L of extracts. The purified extracts exhibited significant anticyanobacterial activities, the organic acids that may contribute to the allelopathic effects of the purslane and purslane seeds on M. aeruginosa.