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Fluorescence changes of aflatoxins B1 and G1

Fluorescenzveränderung von Aflatoxin B1 und G1

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Zusammenfassung

Die Wirkung verschiedener Einflüsse wie pH-Wert, Puffer, Natriumchlorid und UV-Bestrahlung auf die Fluorescenz von Aflatoxin Bi und G1 wurde untersucht. Die Fluorescenzcharakteristik der Aflatoxine B1 und G1 unterliegt charakteristischen Veränderungen bei pH-Werten über 7,2. Verlängerte Bestrahlung mit UV führte zum Abbau der Aflatoxine, wobei die Intensität von der Natur des Lösungsmittels abhängig ist. Natriumchlorid schützte teilweise die Toxine vor dem Abbau durch UV oder in alkalischer Lösung.[/p]

Summary

The effects of various factors, such as pH, buffer, sodiumchloride and ultra-violet radiation on the fluorescence of aflatoxins B1 and G1 have been studied. The fluorescence characteristics of aflatoxins B1 and G1 underwent a marked change at pH values above 7.2. Prolonged exposure to ultra-violet radiation lead to some degradation of aflatoxins and the extent of degradation was dependent upon the nature of the solvent. Sodium chloride partially protected the toxins from degradation by ultra-violet radiation or alkaline conditions.[/p]

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Author notes

  1. H. R. Prasanna

    Present address: Division of Cell & Molecular Biology, Suny at Buffalo, Buffalo, N. Y., USA

Authors and Affiliations

  1. Department of Biochemistry, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi-7, India

    H. R. Prasanna, S. R. Gupta, L. Viswanathan &  T. A. Venkitasubramanian

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  1. H. R. Prasanna
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  2. S. R. Gupta
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  3. L. Viswanathan
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  4. T. A. Venkitasubramanian
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Prasanna, H.R., Gupta, S.R., Viswanathan, L. et al. Fluorescence changes of aflatoxins B1 and G1 . Z Lebensm Unters Forch 159, 319–322 (1975). https://doi.org/10.1007/BF01461371

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  • DOI: https://doi.org/10.1007/BF01461371

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