ISSN 1392-3196 / e-ISSN 2335-8947
Zemdirbyste-Agriculture, vol. 102, No. 4 (2015), p. 397–402
Qualitative changes of rye grain and flour after Fusarium spp. contamination evaluated by standard methods and system Mixolab
Ludmila PAPOUŠKOVÁ, Ivana CAPOUCHOVÁ, Václav DVOŘÁČEK, Petr KONVALINA, Dagmar JANOVSKÁ, Zdena VEPŘÍKOVÁ, Alena ŠKEŘÍKOVÁ, Monika ZRCKOVÁ
The effect of Fusarium spp. infestation on rheological quality of rye flour in different growing systems (organic and conventional) was measured by the rheological system Mixolab. The content of mycotoxins (DON, D3G, 3-ADON and ZON) and standard technological quality parameters of grain were determined as well. Significantly worse technological and rheological parameters representing starch quality were determined for rye artificially inoculated by Fusarium spp. in both growing systems compared to rye with natural Fusarium spp. contamination. A statistically significant negative correlation, indicating deteriorated rheological quality, was discovered between the content of mycotoxins and falling number (−0.69* for DON), and also between mycotoxin content and a rate of starch gelatinization, represented by Mixolab parameter C3 (−0.57* for DON, −0.86** for 3-ADON and −0.87** for ZON). Despite the visible shifts of Mixolab curves of samples from the organic and conventional growing system, the Mixolab characteristics were statistically comparable. Distinct differences of Mixolab curves, presumably caused by the weather conditions, were found between the monitored years.
Key words: growing system, Mixolab, mycotoxins, Secale cereale.
Full text: 102_4_str50.pdf