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- Title
Effect of nanoparticles of double divalent and trivalent iron oxide to protect of flax seeds from microbial spoilage.
- Authors
Riabchykov, Mykola; Tsykhanovska, Iryna; Aleksandrov, Oleksandr; Kovylev, Denis
- Abstract
Introduction. The effect of nanoparticles (NPs) of double divalent and trivalent iron oxide (FeO×Fe2O3 - nanomagnetite) on protection of flax seeds against fungal infections was studied, and the dependence of this effect on the amount of nanomagnetite nanoparticles was determined. Materials and methods. Microscopic observation of morphological and cultural features of micromycetes, yeast Saccharomyces cerevisiae, and mycelial fungi, Mucor racemosus, grown on an agar nutrient medium was done. Experimental samples of micromycetes were obtained by sowing a standard microbial preparation in the form of a suspension (initial dilution of the microbial suspension 1:100) in Petri dishes. Results and discussion. The ability of nanoparticles of double divalent and trivalent iron oxide to protect the flax seeds was shown: addition of 0.1%; 0.15%; 0.2% of nanomagnetite to flax seeds inhibits by 8 -20 times the development of micromycetes on them. A decrease by 8-10 times of the cell number of micromycetes yeast Saccharomyces cerevisiae and mycelia fungi Mucor racemosus as well as diminishing of the colonies size by 10-20 times on the surface of the treated flax seeds compared to control was found. The recommended dosage of nanoparticles of double divalent and trivalent iron oxide was determined as 0.15% from the weight of the flax seeds. The proposed mathematical model makes it possible to predict the effectiveness of NPs FeO×Fe2O3 - nanomagnetite application to inhibit the growth of spoilage microorganisms on the flax seeds. Conclusions. For the first time, the ability of nanoparticles of double divalent and trivalent iron oxide (NPs FeO×Fe2O3 - nanomagnetite) to protect flax seeds from fungal spoilage was shown.
- Subjects
FERRIC oxide; FLAXSEED; NANOPARTICLES; MICROFUNGI; MYCOSES; SACCHAROMYCES cerevisiae
- Publication
Ukrainian Journal of Food Science, 2022, Vol 10, Issue 1, p63
- ISSN
2310-1008
- Publication type
Article
- DOI
10.24263/2310-1008-2022-10-1-8