title: [Inhibition effect on Microcystis aeruginosa PCC7806 as well as separation and identification of algicidal substances isolated from Salvinia natans (L.) All].
abstract: OBJECTIVE
  To study the inhibition effect of Salvinia natans ( L. ) All. on harmful algae.
  
  
  METHODS
  With Microcystis aeruginosa as the subjects, deionized water, ethanol, acetone, ethyl acetate as solvent, four kinds of crude extracts from Salvinia natans (L.) All. were prepared, and their alga-inhibiting actions were verified, respectively. The crude extracts of Salvinia natans (L.) All. with better inhibition effect were selected. The components of algal inhibiting material through macroporous resin purification were obtained, and determined by gas chromatography-mass spectrometry (GC-MS).
  
  
  RESULTS
  The algicidal effect as follows: ethyl acetate extract > acetone crude extract > ethanol crude extract > water crude extract. Meanwhile, the inhibitory substances of Salvinia natans (L.) All. may be: diacetone alcohol, methyl isobutenyl ketone, 5-methyl-2-(1-methylethyl)-1-hexanol, pentadecanal, 14-heptadecenal, cumene, butyl acetate, ascorbyl dipalmitate, 1, 2-benzenedicarboxylic acid, mono (2- ethylhexyl) ester, dibutyl phthalate and phthalic acid, butyl undecane ester.
  
  
  CONCLUSIONS
  The algal inhibiting effect research of Salvinia natans (L.) All., as well as its separation and identification of allelochemicals supplys theoretical basis and practical evidence not only for algae control, but also exploitation of algal inhibiting agent.
authors.forename: Shengjuan
authors.initials: S
authors.lastname: Zhang
authors.forename: Wentong
authors.initials: W
authors.lastname: Xia
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Yang
authors.forename: Tingting
authors.initials: T
authors.lastname: Zhang
mesh_terms: D019669:Embryophyta / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D046931:Microcystis / Q000187:drug effects*; D010936:Plant Extracts / Q000494:pharmacology*
chemical_list: D010936:Plant Extracts