Garipova NV, Kholodilina TN, Kurilkina MYa, Vanshin VV.

DOI: 10.33284/2658-3135-102-2-21

UDC577.17:636.085.25

Physical parameters of iron microparticles and bioavailability after exposure with very high frequency

NV Garipova1, TN Kholodilina1,2, MYa Kurilkina1, VV Vanshin2

1 Federal Research Center for Biological Systems and Agrotechnologies of the Russian Academy of Sciences (Orenburg, Russia)

2Orenburg State University (Orenburg, Russia)

Summary. The biological effect of trace metals is determined by their physical parameters, such as size and pycnometric density. The size of Fe microparticles under study was 12.5-50 µm, pycnometric density was 3.40 cm3.

It is revealed that the inclusion of Fe in the composition of the experimental complexes (EC), subjected to the electromagnetic influence of the microwave, increases the porosity of product by 23.4 %. Evaluation of digestibility «in vitro» showed an increase in bioavailability coefficient of dry matter of the studied complexes by 5.12 and 2.75 %. The inclusion of Fe microparticles leads to the intensification of microwave treatment process and an increase in the temperature of final product.

Visualization of samples of the experimental complex using an optical microscope made it possible to obtain information on the structural transformations that occurred after electromagnetic exposure with very high frequency. The localization of iron particles was determined and sintering of magnetic agglomerates and organic matter was established. That says about the inclusion of this element in the product structure.

Key words: feed, iron microparticles, electromagnetic treatment (SHF), porosity EC, feed digestibility.

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    Garipova Natalia Victorovna, Post-Graduate Students, Federal Research Center for Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 460000, Russia,460000, Orenburg, Russia,29, 9 Januarya St., tel.: 8(3532)77-39-97, e-mail: profnat27@mail.ru

    Kholodilina Tatyana Nikolaevna, Cand.Sci (Agr.), Head of Testing Center, Federal Research Center for Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 460000, Orenburg, Russia, 29, 9 Januarya St., tel.: 8(3532)77-39-97, e-mail: icvniims@mаil.ru; Assoc. Prof. Departments of Ecology and Nature Management, Orenburg State University, 13 Pobedy Avenue, 460018, Orenburg, Russia,e-mail: post@mail.osu.ru

    Kurilkina Marina Yakovlevna, Cand. Sci(Biol.), Researcherof the Testing Center, Federal Research Center for Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 460000, Orenburg, Russia, 29, 9 Januarya St., tel.: 8(3532)77-39-97, e-mail: icvniims@mаil.ru

    Vanshin Vladimir Valeryevich, Cand.Sci (Agr.),Assoc. Prof. Department Technology of food production, Orenburg State University, 13 Pobedy Avenue, 460018, Orenburg, Russia,e-mail: post@mail.osu.ru

Received: 14 June 2019; Accepted: 17 June 2019; Published: 28 June 2019

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