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

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 fermen...

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Main Authors: Ondrej Slaný, Tatiana Klempová, Volha Shapaval, Boris Zimmermann, Achim Kohler, Milan Čertík
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/9/1/170
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author Ondrej Slaný
Tatiana Klempová
Volha Shapaval
Boris Zimmermann
Achim Kohler
Milan Čertík
author_facet Ondrej Slaný
Tatiana Klempová
Volha Shapaval
Boris Zimmermann
Achim Kohler
Milan Čertík
author_sort Ondrej Slaný
collection DOAJ
description 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 <i>Umbelopsis isabellina</i> 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.
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spelling doaj.art-08b24747d2c84c6a9fb155f781340fce2023-12-03T13:14:01ZengMDPI AGMicroorganisms2076-26072021-01-019117010.3390/microorganisms9010170Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State FermentationOndrej Slaný0Tatiana Klempová1Volha Shapaval2Boris Zimmermann3Achim Kohler4Milan Čertík5Faculty of Chemical and Food Technology, Institute of Biotechnology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, SlovakiaFaculty of Chemical and Food Technology, Institute of Biotechnology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, SlovakiaFaculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432 Ås, NorwayFaculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432 Ås, NorwayFaculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432 Ås, NorwayFaculty of Chemical and Food Technology, Institute of Biotechnology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, SlovakiaThe 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 <i>Umbelopsis isabellina</i> 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.https://www.mdpi.com/2076-2607/9/1/170solid-state fermentation<i>Umbelopsis isabellina</i>γ-linolenic acidβ-caroteneFourier transform infrared (FTIR) spectroscopyanimal fat by-product
spellingShingle Ondrej Slaný
Tatiana Klempová
Volha Shapaval
Boris Zimmermann
Achim Kohler
Milan Čertík
Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation
Microorganisms
solid-state fermentation
<i>Umbelopsis isabellina</i>
γ-linolenic acid
β-carotene
Fourier transform infrared (FTIR) spectroscopy
animal fat by-product
title Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation
title_full Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation
title_fullStr Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation
title_full_unstemmed Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation
title_short Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation
title_sort animal fat as a substrate for production of n 6 fatty acids by fungal solid state fermentation
topic solid-state fermentation
<i>Umbelopsis isabellina</i>
γ-linolenic acid
β-carotene
Fourier transform infrared (FTIR) spectroscopy
animal fat by-product
url https://www.mdpi.com/2076-2607/9/1/170
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