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  • Aflatoxin B1  (1)
  • Best. von Mycotoxinen, Citrinin, Ochratoxin A, Aflatoxin M1, Penicillinsäure  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Development of Aspergillus parasiticus and formation of aflatoxin B1 under the influence of conidiogenesis affecting compounds (1982)
    Springer
    Archives of microbiology 133 (1982), S. 236-238 
    Details
    ISSN: 1432-072X
    Keywords: Aflatoxin B1 ; Aspergillus parasiticus ; Conidiogenesis ; dl-Ethionine ; Fluoroacetic acid ; Phenylboric acid ; 6-Thioguanine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The influence of various inhibitors of hyphal growth, sporulation and biosynthesis of aflatoxin B1 in Aspergillus parasiticus NRRL 2999 was studied. 6-Thioguanine, dl-ethionine, fluoroacetic acid and phenylboric acid, inhibitors of maturation of fungal conidiophores and of conidiogenesis, were added at various concentrations to malt extract agar. Lower concentrations of 6-thioguanine and dl-ethionine did not inhibit the growth of hyphae and the sporulation. Phenylboric acid reduced conidiogenesis more than hyphal growth. The yields of aflatoxin B1 were significantly reduced. Additions of fluoroacetic acid did not greatly affect the growth of hyphae but totally inhibited the production of conidia and concurrently significantly reduced the formation of aflatoxin B1. An interrelation between conidiogenesis and onset of secondary metabolism in A. parasiticus is evident.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00415008
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  • 2
    Electronic Resource
    Electronic Resource
    Semiquantitative estimation of the mycotoxins citrinin, Ochratoxin A, Aflatoxin M1 and penicillic acid on thin-layer chromatograms with a grey scale (1978)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 293 (1978), S. 138-140 
    Details
    ISSN: 1618-2650
    Keywords: Best. von Mycotoxinen, Citrinin, Ochratoxin A, Aflatoxin M1, Penicillinsäure ; Chromatographie, Dünnschicht ; Graukeil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary Spots of citrinin, ochratoxin A, aflatoxin M1 and penicillic acid on thin-layer chromatograms can be semi-quantitatively estimated by using a grey scale, commonly used in photo laboratories. The detection limits are 0.01 μg for citrinin, 0.006 μg for ochratoxin A, 0.002 μg for aflatoxin M1 and 0.01 μg for penicillic acid. Standard curves for these mycotoxins are given.
    Notes: Zusammenfassung Mit Hilfe eines in Photolabors gebräuchlichen Graukeils können dünnschicht-chromatographische Flecke der obengenannten Mycotoxine halbquantitativ bestimmt werden. Die Nachweisgrenzen betragen 0,01 μg für Citrinin, 0,006 μg für Ochratoxin A, 0,002 μg für Aflatoxin M1 und 0,01 μg für Penicillinsäure. Eichkurven werden angegeben.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00486993
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    Paper (German National Licenses)
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