Abstract
A new method for preparative isolation of 4-deoxynivalenol (DON) is presented. This method avoids the loss of material during purification on silica gel by column chromatography. DON and 3-acetyldeoxynivalenol in crude extracts of rice inoculated with Fusarium graminearum were converted to triacetyldeoxynivalenol; the acetylated product was easier to purify by silica gel chromatography than DON is. After hydrolysis and further purification on a charcoal-alumina column, the 71% pure DON was recovered in yields as high as 450 mg of DON per kg of rice. Subsequent separation on a Sephadex LH20 column yielded DON that was greater than 90% pure.
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
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