A major decomposition product, citrinin H2, from citrinin on heating with moisture.
Citrinin is one of the mycotoxins produced by Penicillium citrinum. We examined the decomposition products after heating citrinin in water at 140 degrees C and isolated a major product, citrinin H2 (3-(3,5-dihydroxy-2-methylphenyl)-2-formyloxy-butane). Citrinin H2 did not show significant cytotoxicity to HeLa cells up to a concentration of 200 microg/ml (% cytotoxicity: 39%) in 63 h of incubation, but citrinin showed severe toxicity at a concentration of 25 microg/ml (% cytotoxicity: 73%). HPLC analysis of citrinin after heating under various conditions indicates that citrinin H2 is mainly yielded from citrinin.
Hirota
Mitsuru
M
Department of Bioscience and Biotechnology, Faculty of Agriculture, Shinshu University, Kami-ina, Nagano, Japan. hirotam@gipmc.shinshu-u.ac.jp
Mehta
Alka
A
Yoneyama
Keiko
K
Kitabatake
Naofumi
N
Menta Alka
B
B
D002953:Citrinin / Q000737:chemistry / Q000494:pharmacology*; D004952:Esters / Q000737:chemistry / Q000494:pharmacology*; D006367:HeLa Cells; D006361:Heating; D006801:Humans; D015394:Molecular Structure; D010407:Penicillium; D012118:Resorcinols / Q000737:chemistry / Q000494:pharmacology*; D014867:Water
D004952:Esters; D012118:Resorcinols; C465978:citrinin H2; D014867:Water; D002953:Citrinin