Selective effect of propionates and water activity on maize mycoflora and impact on funonisin B1 accumulation.
MARIN, S., MAGAN, N., ABELLANA, M., CANELA, R., RAMOS, A.J. and SANCHIS, V.
Journal of Stored Products Research 36:203-214.
2000
บทคัดย่อ
The effect of commercial mixture of propionates at two different doses, 0.05 and 0.1%, on fungal spoilage of natural maize stored at 0.85, 0.90 and 0.95 water activity (aw) was investigated. Parallel treatments with added inoculum of Fusarium moniliforme and F.proliferatum were carried out in order to determine the effect of fungal interactions on the development of fumoinsin producers on maize in relation to preservative efficacy. Besides the selective effect of aw on maize mycoflora, it was demonstrated that most genera which colonise maize remained unaffected by the preservative concentrations applied. However, Penicillium populations counts decreased significantly. Furthermore, there was a significant statistical interaction between proservative and aw level, with the preservative activity enhanced at low aw. The concentrations of FB1 were unaffected by treatment with no significant differences in concentrations found.