Aflatoxin is degraded by heated and unheated mycelia, filtrates of homogenized mycelia and filtrates of broth cultures of Aspergillus parasiticus
✍ Scribed by M. P. Doyle; E. H. Marth
- Book ID
- 104776272
- Publisher
- Springer Netherlands
- Year
- 1978
- Tongue
- English
- Weight
- 342 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0301-486X
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✦ Synopsis
Steaming one-half of a lot of 9-day-old mycelia of Aspergillus parasiticus NRRL 2999 for 6 rain resulted in little or no subsequent degradation of aflatoxin B 1 or G 1 by these mycelia. The other half of these mycelia was not heattreated and degraded aflatoxins B~ and G r Filtrates of the growth substrate which remained after the mycelium was removed from 8-to 15-day old cultures of A. parasiticus NRRL 2999 did not degrade substantial amounts of aflatoxin B 1 or G1, whereas mycelia originally produced on these filtrates degraded substantial amounts of both aflatoxins. The supernatant fluid from homogenates of 9day-old mycelia of A. parasitieus NRRL 2999 degraded aflatoxins B 1 and G1 when 0.1 M or 1.0 M phosphate buffer, pH 6.5, was used to suspend the homogenate. These data support the hypothesis that the aflatoxin degrading factor(s) present in the mycelium of A. purasiticus is/are enzyme(s) or at least influenced by enzyme(s).