Food Research Institute

Csurka, T. – Varga, Á. – Ladányi, M. – Friedrich, L. F. – Pásztor-Huszár, K.
Membrane separation of porcine blood for food industrial use of permeate and retentate
Journal of Food and Nutrition Research, 61, 2022, No. 3, s. 218-229

Tamás Csurka, Department of Livestocks' Products and Food Preservation Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi str. 43-45, H-1118 Budapest, Hungary; Doctoral School of Food Sciences, Hungarian University of Agriculture and Life Sciences, Villányi str. 29-43, H-1118 Budapest, Hungary. E-mail: csurka.tamas@uni-mate.hu

Received 15 March 2022; 1st revised 31 May 2022; accepted 1 June 2022; published online 18 July 2022.

Summary: In this article, we introduce the importance of blood processing for human consumption while also presenting the methodology of porcine blood membrane separation to plasma and red blood cell fractions, as well as the membrane purification after porcine blood separation. Basic analytical measurements were carried out to investigate the blood product attributes, which relate to technological and nutritional quality depending on the separation parameters. Next, we present how the relevant hydrodynamical parameters were calculated during the experiments. Membrane separation was realized by crossflow microfiltration with pore size of 0.8 μm or 1.2 μm, retentate flow rate of 200 l·h^-1 or 300 l·h^-1 and with transmembrane pressure of 1 × 10⁵ Pa, 2 × 10⁵ Pa or 3 × 10⁵ Pa. The experimental design was analysed, the parameters of the objective function and effect sizes were estimated and the global minimum of the objective function was successfully identified. The results of this optimization can be applied in practice. The membrane separation parameters were then optimized according to a model based on the observed data. An optimum was detected within the examined factor levels and experimental conditions at the lowest transmembrane pressure and at the highest membrane pore size.

Keywords: animal blood; blood separation; by-product; membrane technology; microfiltration; sustainability

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