Effect of water activity and temperature on mycotoxin production by Alternaria alternata in culture and on wheat grain.

Abstract

Both water activity (aW) and temperature affected the production of altenuene (AE), alternariol (AOH), and alternariol monomethyl ether (AME) by Alternaria alternata on wheat extract agar and wheat grain. Greatest production of all three mycotoxins occurred at 0.98 aW and 25 degrees C on both substrates. At 0.98 aW and 25 degrees C, a single colony of A… (More)

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