Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation

Slaný, Ondrej; Klempová, Tatiana; Shapaval, Volha; Zimmermann, Boris; Kohler, Achim; Čertík, Milan

doi:10.3390/microorganisms9010170

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Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation

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Faculty of Chemical and Food Technology, Institute of Biotechnology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia

Faculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432 Ås, Norway

Author to whom correspondence should be addressed.

Academic Editor: Peter Richard

Microorganisms 2021, 9(1), 170; https://doi.org/10.3390/microorganisms9010170

Received: 1 December 2020 / Revised: 7 January 2021 / Accepted: 11 January 2021 / Published: 14 January 2021

(This article belongs to the Special Issue Microbial Populations of Fermented Foods)

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Abstract

The method of solid-state fermentation (SSF) represents a powerful technology for the fortification of animal-based by-products. Oleaginous Zygomycetes fungi are efficient microbial cell factories used in SSF to valorize a wide range of waste and rest cereal materials. The application of this fermentation technique for utilization and biotransformation of animal-based materials represents a distinguished step in their treatment. In this study, for the first time, the strain Umbelopsis isabellina CCF2412 was used for the bioconversion of animal fat by-products to the fermented bioproducts enriched with n-6 polyunsaturated fatty acids, mainly γ-linolenic acid (GLA). Bioconversion of both cereals and the animal fat by-product resulted in the production of fermented bioproducts enriched with not just GLA (maximal yield was 6.4 mg GLA/g of fermented bioproduct), but also with high yields of glucosamine. Moreover, the fermentation on the cornmeal matrix led to obtaining bioproduct enriched with β-carotene. An increased amount of β-carotene content improved the antioxidant stability of obtained fermented bioproducts. Furthermore, the application of Fourier-transform infrared spectroscopy for rapid analysis and characterization of the biochemical profile of obtained SSF bioproducts was also studied. View Full-Text

Keywords: solid-state fermentation; Umbelopsis isabellina; γ-linolenic acid; β-carotene; Fourier transform infrared (FTIR) spectroscopy; animal fat by-product

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MDPI and ACS Style

Slaný, O.; Klempová, T.; Shapaval, V.; Zimmermann, B.; Kohler, A.; Čertík, M. Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation. Microorganisms 2021, 9, 170. https://doi.org/10.3390/microorganisms9010170

AMA Style

Slaný O, Klempová T, Shapaval V, Zimmermann B, Kohler A, Čertík M. Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation. Microorganisms. 2021; 9(1):170. https://doi.org/10.3390/microorganisms9010170

Chicago/Turabian Style

Slaný, Ondrej, Tatiana Klempová, Volha Shapaval, Boris Zimmermann, Achim Kohler, and Milan Čertík. 2021. "Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation" Microorganisms 9, no. 1: 170. https://doi.org/10.3390/microorganisms9010170

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Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation

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