Effect of surfactants on the spectrofluorimetric properties of zearalenone |
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| Authors: | Michael Appell Wayne B Bosma |
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| Institution: | a Bacterial Foodborne Pathogens and Mycology Research, United States Department of Agriculture, Agricultural Research Service, National Center for Agricultural Utilization Research, 1815 N. University St., Peoria, IL 61604, USA
b Department of Chemistry and Biochemistry, Bradley University, Peoria, IL 61625, USA |
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| Abstract: | The chemiluminescent properties of the estrogenic mycotoxin zearalenone in the presence of aqueous micellar media were investigated using steady state fluorescence techniques. Micelles of surfactants sodium dodecyl sulfate (SDS), hexadecyltrimethylammonium bromide (CTAB), and non-ionic Triton X-100 enhanced the fluorescence intensity of zearalenone in aqueous solutions. The binding constants have been determined and indicate zearalenone has the highest affinity for Triton X-100, followed by CTAB, and then by SDS. The encapsulation of zearalenone by the micelles studied is spontaneous and exothermic. The selective microenvironments provided by organized micellar systems offer an attractive medium to modulate fluorescence detection of zearalenone. |
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| Keywords: | Fluorescence Zearalenone Mycotoxin Binding constant Surfactant |
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