| Autor: |
Lahtinen, S.J., Haskard, C.A., Ouwehand, A.C., Salminen, S.J., Ahokas, J.T. |
| Předmět: |
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| Zdroj: |
Food Additives & Contaminants; Feb2004, Vol. 21 Issue 2, p158-164, 7p |
| Abstrakt: |
The surface of Lactobacillus rhamnosus strain GG (LGG) has previously been shown to bind aflatoxin B 1 (AFB 1 ) effectively, it being a food-borne carcinogen produced by certain species of Aspergillus fungi. To establish which components of the cell envelope are involved in the AFB 1 binding process, exopolysaccharides and a cell wall isolate containing peptidoglycan were extracted from LGG and its AFB 1 binding properties were tested. LGG was also subjected to various enzymatic and chemical treatments and their effects on the binding of AFB 1 by LGG were examined. No evidence was found for exopolysaccharides, cell wall proteins, Ca 2+ or Mg 2+ being involved in AFB 1 binding. The AFB 1 binding activity of the cell wall isolate indicates that AFB 1 binds to the cell wall peptidoglycan of LGG or compounds tightly associated with the peptidoglycan. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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