Abstract
During the rapid mineralization in soil of sucralose (4-chloro-4-deoxy-α,D-galactopyranosyl-1,6-dichloro-1,6-dideoxy-β,D-fructofuranoside), a metabolic product was formed that appears to be the corresponding unsaturated aldehyde. During the slow and incomplete mineralization of sucralose in lake water, which was not increased by the addition of nitrogen and phosphorus, the same compound was produced. That product was further metabolized by microorganisms in lake water and soil. Mineralization was also slow in sewage under aerobic conditions, but organic products were not detected. Little or no CO2 was formed from the disaccharide in flooded soil or anaerobic sewage. Bacteria in culture did not use sucralose as a carbon source but did convert it to the presumed unsaturated aldehyde, 1,6-dichloro-1,6-dideoxy-D-fructose and possibly the uronic acid of sucralose. Sucralose carbon was not incorporated into cells of two sucralose-metabolizing bacteria or the microbial biomass of sewage or lake water. The chlorinated disaccharide was slowly metabolized by a galactose oxidase preparation. It is concluded that the chlorinated sugar is acted on microbiologically by cometabolism.
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References
Bartholomew GW, Alexander M (1982) Microorganisms responsible for the oxidation of carbon monoxide in soil. Environ Sci Technol 16:301–302.
D'Amore T, Taylor NF (1982) The reaction of 4-deoxy-4-fluoro-D-glucose with an outer membrane protein of Pseudomonas putida. FEBS Lett 143:247–251
Furukawa K, Matsumura F, Tonumura K (1978) Alcaligenes and Acinetobacter strains capable of degrading polychlorinated biphenyls. Agric Biol Chem 42:543–548.
Grbić-Galić D, Vogel TM (1987) Transformation of toluene and benzene by mixed methanogenic cultures. Appl Environ Microbiol 53:254–260.
Jacobson SN, O'Mara NL, Alexander M (1980) Evidence for cometabolism in sewage. Appl Environ Microbiol 40:917–921.
Labare MP, Alexander M (1993) Biodegradation of sucralose, a chlorinated carbohydrate, in samples of natural environments. Environ Toxicol Chem 12:797–804
Lappin-Scott HM, Holt G, Bull AT (1987) Microbial transformation of 1,6-dichloro-1,6-dideoxy-β-D-fructofuranosyl-4-chloro-4-deoxy-α,D-galactopyranoside (TGS) by soil populations. Mircen J Appl Microbiol Biotechnol 3:95–102
Ljungdahl LG, Wiegel J (1986) Working with anaerobic bacteria. In: Demain AL, Solomon NA (eds) Manual of industrial microbiology and biotechnology. American Society for Microbiology, Washington, DC, pp 84–96
Maier E, Kurz G (1982) D-Galactose dehydrogenase from Pseudomonas fluorescens. Methods Enzymol 89:176–181
Novick NJ, Alexander M (1985) Cometabolism of low concentrations of propachlor, alachlor, and cycloate in sewage and lake water. Appl Environ Microbiol 49:737–743.
Subcommittee on Biodegradation Test Methods (1965) A procedure a and standards for the determination of the biodegradability of alkyl benzene sulfonate and linear alkylate sulfonate. J Am Oil Chem Soc 42:986–993
Tressel PS, Kosman DJ (1982) Galactose oxidase from Dactylium dendroides. Methods Enzymol 89:163–171
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Labare, M.P., Alexander, M. Microbial cometabolism of sucralose, a chlorinated disaccharide, in environmental samples. Appl Microbiol Biotechnol 42, 173–178 (1994). https://doi.org/10.1007/BF00170242
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DOI: https://doi.org/10.1007/BF00170242