Adsorption mediated decrease in the biodegradation rate of organic compounds

Andrew S. Gordon, Frank J. Millero

Research output: Contribution to journalArticlepeer-review

75 Scopus citations


A negative correlation between adsorption of low molecular weight organic acids and sugars onto a hydroxyapatite surface and biodegradation rates of the compounds in the presence of the mineral was observed. Qualitatively, the effect was the same whether the organics were equilibrated with the surface prior to the addition of organisms or the organisms were preattached to the surface. Glucose, acetic acid, succinic acid, glutamic acid, and citric acid showed equilibrium adsorption values ranging from 0-94% from a 2 μM solution. Changes in both respiration and assimilation of the substrates in the presence of hydroxyapatite were inversely correlated with adsorption.

Original languageEnglish (US)
Pages (from-to)289-298
Number of pages10
JournalMicrobial Ecology
Issue number4
StatePublished - Dec 1 1985

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Soil Science


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