Abstract
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 2μM solution. Changes in both respiration and assimilation of the substrates in the presence of hydroxyapatite were inversely correlated with adsorption.
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Gordon, A.S., Millero, F.J. Adsorption mediated decrease in the biodegradation rate of organic compounds. Microb Ecol 11, 289–298 (1985). https://doi.org/10.1007/BF02016813
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DOI: https://doi.org/10.1007/BF02016813