Date: 26 November 2013
Secondary metabolites, structure diagram: Trivial name – malformins
Copyright: n/a
Notes:
Species: A. nigerSystematic name: Cyclo(D-cysteinyl-D-cysteinyl-L-valyl-D-leucyl-L-leucyl), cyclic (1®2)-disulfideMalformin AMolecular formulae: C23H39N5O5S2Molecular weight: 529.718Chemical abstracts number: 3022-92-2Selected references: Kim KW, Sugawara F, Yoshida S, Murofushi N, Takahashi N, Curtis RW. Structure of malformin B, a phytotoxic metabolite produced by Aspergillus niger. Biosci Biotechnol Biochem. 1993 May;57(5):787-91.Toxicity: mouse LD50 intraperitoneal 3100ug/kg (3.1mg/kg) EFFECTS: GASTROINTESTINAL: OTHER CHANGES. LIVER: OTHER CHANGES. KIDNEY, URETER, AND BLADDER: OTHER CHANGES Agricultural and Biological Chemistry. Vol. 39, Pg. 1325, 1975.
Images library
-
Title
Legend
-
Aflatoxicosis – advertisement for a sports drink in China, supposed to remove aflatoxin.
-
Aflatoxicosis – Kenya, 1982- 20 cases of aflatoxicosis described and 12 deaths. Aflatoxin was detectable at 3.2-12mg/kg in food samples.
-
Light microscopical appearance of hepatic tissue in outbreak of aflatoxicosis showing centrilobular collapse with reticular condensation (Reticulin).
-
Test for aflatoxin B1. Standard curve wells in triplicate – columns 9, 10 & 11 – laid out horizontally. Triplicates of 14 samples laid out vertically in rows 2 to 8
