Relationship between the physicochemical parameters and biological activity of sulfosuccinic acid ester surfactants

G. Oros, T. Cserháti, Alena Vrbanovà

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The effect of 11 sulfosuccinic acid ester surfactants on the abiotrophic developmental forms of the asexual spores of Plasmopara halstedii was determined. The strength and the selectivity of the effect was separated by the spectral mapping technique and the relationship between the biological activities and physicochemical parameters of anionic surfactants was elucidated by stepwise regression analysis. It was established that the plasmalemma of cell wall less zoospores showed the highest and the resting zoosporangia the lowest average sensitivity toward the surfactants. The biological efficacy of surfactants was highly different the di-n-octyl ester being the most effective. Calculations proved that both the stregth and selectivity of the biological activity mainly depends on the lipophilicity of the molecule and, to a lesser extent, on the electronic parameters.

Original languageEnglish
Pages (from-to)79-88
Number of pages10
JournalBiochemistry and Molecular Biology International
Volume47
Issue number1
Publication statusPublished - Jan 1999

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Bioactivity
Surface-Active Agents
Esters
Anionic surfactants
Regression analysis
Spores
Cells
Cell Wall
Molecules
Regression Analysis
thiosuccinic acid

Keywords

  • Anionic surfactants
  • Biological activity
  • Plasmopara halstedii

ASJC Scopus subject areas

  • Biochemistry
  • Genetics
  • Molecular Biology

Cite this

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AB - The effect of 11 sulfosuccinic acid ester surfactants on the abiotrophic developmental forms of the asexual spores of Plasmopara halstedii was determined. The strength and the selectivity of the effect was separated by the spectral mapping technique and the relationship between the biological activities and physicochemical parameters of anionic surfactants was elucidated by stepwise regression analysis. It was established that the plasmalemma of cell wall less zoospores showed the highest and the resting zoosporangia the lowest average sensitivity toward the surfactants. The biological efficacy of surfactants was highly different the di-n-octyl ester being the most effective. Calculations proved that both the stregth and selectivity of the biological activity mainly depends on the lipophilicity of the molecule and, to a lesser extent, on the electronic parameters.

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