Production of dietary feed supplements enriched in microelements in a pilot plant biosorption system

Z Witkowska,P Rusek,M Samoraj,A Witek-Krowiak,K Chojnacka,Ł Tuhy

doi:10.1007/s13762-016-0945-z

Abstract

In this work, biosorption was used as a method to enrich biomass (soybean meal) with microelements [such as Zn(II), Cu(II), Mn(II) and Fe(II)] that are essential in livestock nutrition to produce dietary feed supplements. The biosorption process was carried out in a specially designed pilot plant system with two-column reactors according to the principles of the eco-friendly effluent-free technology. The applicative parts of products and innovative biological feed supplements were produced for zoo-technical tests on animals (hens, goats and fatteners). Multielemental analysis showed a multiple increase in the content of each microelement in the soybean meal after biosorption [of Zn(II)—168 times, Cu(II)—179 times, Mn(II)—62 times and Fe(II)—50 times]. The process was analyzed in terms of technological indicators and preliminary economic analysis, including the cost of materials, labor costs and depreciation of the equipment used. It was found that the cost of supplementation of 1 kg of feed for laying hens and fattening pigs with the new preparation enriched with Cu(II) and manufactured on a technical scale was around $0.393.

Highlights

In this work, biosorption was used as a method to enrich biomass with microelements [such as Zn(II), Cu(II), Mn(II) and Fe(II)] that are essential in livestock nutrition to produce dietary feed supplements
The biosorbent selected for the study, which was non-living biomass of soybean meal, is a material traditionally used as a part of animal feed:
We proposed a pilot plant system for biosorption consisting of column reactors and using feed material as a biosorbent

Summary

Introduction

Biosorption was used as a method to enrich biomass (soybean meal) with microelements [such as Zn(II), Cu(II), Mn(II) and Fe(II)] that are essential in livestock nutrition to produce dietary feed supplements. The biosorption process can be used for the purpose of enriching the waste material of plant origin with essential cations (micro- and macroelements) to make it a component of a balanced diet, i.e., feed for animals or an enriched fertilizer for plants (Chojnacka et al 2009; Chojnacka 2013). This technique allows for producing safer and greener feed additives as carriers of micronutrients in livestock feeding. Biosorption of chromium with the use of varied biomass is a clean option in which chromium is absorbed to an acceptable limit (99.5 % reduction in chromium with use Bacillus pumilus) (Kanagaraj et al 2014)

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