[Toxinogenic moulds of silage. IV. - Patulin production in liquid medium using fungus species isolated in silages (author's transl)].

  • 1 January 1975
    • journal article
    • abstracts
    • Vol. 6  (3) , 303-10
Abstract
The toxinogenesis of 18 strains of Byssochlamys nivea, 4 of Byssochlamys fulva, 7 of Paecilomyces varioti, 2 of Aspergillus clavatus, I of Aspergillus terreus, and I of Penicillium urticae, isolated in ensilaged forages, is tested at 26 degrees C in Czapek's enriched liquid medium (8 p. 1000 glucose + 2 p. 1000 yeast extract). 100 p. 100 of Byssochlamys nivea strains, 75 p. 100 of Byssochlamys fulva and 12 p. 100 of Paecilomyces varioti strains produce patulin after 9 days of culture. Mycotoxin concentrations recovered range from 0.5 to 1 120 p.p.m. Only highly toxinogenic strains when they invade silage cutting fronts, would be able to develop detectable amounts of patulin.

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