期刊
出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/19440049.2014.976596
关键词
ozone; deoxynivalenol; quality; Fusarium head blight of wheat; degradation
资金
- National Modern Agricultural (Wheat) Industry Technology System Construction Program [CARS-03]
- Doctoral Program of Henan University of Technology [2012BS010]
Deoxynivalenol (DON) is the secondary metabolite of Fusarium graminearum, which is always found in Fusarium head blight of wheat. In this study, gaseous ozone was used to treat both DON solution and scabbed wheat to investigate the effectiveness of ozone treatment on DON degradation and the effect of ozone on the quality parameters of wheat. It was found that gaseous ozone had a significant effect on DON reduction in solution, when 10mgl(-1) gaseous ozone was used to treat a 1 mu gml(-1) of DON solution, the degradation rate of DON was 93.6% within 30s. Lower initial concentrations of DON solution treated with higher concentrations of ozone, and longer times showed higher DON degradation rates. Gaseous ozone was effective against DON in scabbed wheat. The degradation rate of DON increased with ozone concentration and processing time. The correlation between the time and degradation rate was y=-1.1926x(2) + 11.427x - 8.7787. In the process of ozone oxidation, a higher moisture content of wheat was more sensitive than that of lower moisture content to ozone under the same conditions. All samples were treated with different concentrations of ozone for 4h to investigate the effect of ozone on wheat quality. No significant detrimental changes in the starch pasting properties of wheat were observed after all the samples were treated with ozone within 4h. On the other hand, there was a slight rise in the dough development time and stability time, which meant the quality of flour improved after ozone treatment.
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