Oleaginous yeast Rhodotorula toruloides biomass effect on the metabolism of Arctic char (Salvelinus alpinus)
Sustainability issues arise when using fish oil and vegetable oils in fish feed production for aquaculture purposes. Microbial production of single cell oil is a potential alternative as a lipid ingredient in the production of fish feed. In this study, we replaced the vegetable oils with the oleagin...
Published in: | Frontiers in Molecular Biosciences |
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Online Access: | https://doi.org/10.3389/fmolb.2022.931946 https://doaj.org/article/d0b516469e314e07b85aaf758cc3eaa6 |
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ftdoajarticles:oai:doaj.org/article:d0b516469e314e07b85aaf758cc3eaa6 2023-05-15T14:58:30+02:00 Oleaginous yeast Rhodotorula toruloides biomass effect on the metabolism of Arctic char (Salvelinus alpinus) Mathilde Brunel Viktoriia Burkina Jana Pickova Sabine Sampels Ali A. Moazzami 2022-08-01T00:00:00Z https://doi.org/10.3389/fmolb.2022.931946 https://doaj.org/article/d0b516469e314e07b85aaf758cc3eaa6 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmolb.2022.931946/full https://doaj.org/toc/2296-889X 2296-889X doi:10.3389/fmolb.2022.931946 https://doaj.org/article/d0b516469e314e07b85aaf758cc3eaa6 Frontiers in Molecular Biosciences, Vol 9 (2022) metabolomics fish feed replacement fatty acids metabolites gluconeogenesis plasma Biology (General) QH301-705.5 article 2022 ftdoajarticles https://doi.org/10.3389/fmolb.2022.931946 2022-12-30T21:02:40Z Sustainability issues arise when using fish oil and vegetable oils in fish feed production for aquaculture purposes. Microbial production of single cell oil is a potential alternative as a lipid ingredient in the production of fish feed. In this study, we replaced the vegetable oils with the oleaginous yeast R. toruloides biomass in the diet of Arctic char (S. alpinus) and investigated the effects on health and composition. Measurement of fish growth parameters showed a higher liver weight and hepatosomatic index in the experimental group of fish fed partly with yeast biomass compared to a control group fed a diet with vegetable oils. No significant differences in the lipid content of muscle and liver tissues were found. The fatty acid profiles in the muscle of both fish groups were similar while the experimental fish group had a higher amount of monounsaturated fatty acids in the liver. Histology of livers showed no significant difference in the number of lipid droplets. The size of hepatic lipid droplets seemed to be related to liver fat content. Quantification of metabolites in the liver revealed no differences between the fish groups while plasma metabolites involved in energy pathways such as alanine, 3-hydroxybutyrate, creatinine, serine, betaine, and choline were significantly higher in the experimental fish group. Article in Journal/Newspaper Arctic Salvelinus alpinus Directory of Open Access Journals: DOAJ Articles Arctic Frontiers in Molecular Biosciences 9 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
metabolomics fish feed replacement fatty acids metabolites gluconeogenesis plasma Biology (General) QH301-705.5 |
spellingShingle |
metabolomics fish feed replacement fatty acids metabolites gluconeogenesis plasma Biology (General) QH301-705.5 Mathilde Brunel Viktoriia Burkina Jana Pickova Sabine Sampels Ali A. Moazzami Oleaginous yeast Rhodotorula toruloides biomass effect on the metabolism of Arctic char (Salvelinus alpinus) |
topic_facet |
metabolomics fish feed replacement fatty acids metabolites gluconeogenesis plasma Biology (General) QH301-705.5 |
description |
Sustainability issues arise when using fish oil and vegetable oils in fish feed production for aquaculture purposes. Microbial production of single cell oil is a potential alternative as a lipid ingredient in the production of fish feed. In this study, we replaced the vegetable oils with the oleaginous yeast R. toruloides biomass in the diet of Arctic char (S. alpinus) and investigated the effects on health and composition. Measurement of fish growth parameters showed a higher liver weight and hepatosomatic index in the experimental group of fish fed partly with yeast biomass compared to a control group fed a diet with vegetable oils. No significant differences in the lipid content of muscle and liver tissues were found. The fatty acid profiles in the muscle of both fish groups were similar while the experimental fish group had a higher amount of monounsaturated fatty acids in the liver. Histology of livers showed no significant difference in the number of lipid droplets. The size of hepatic lipid droplets seemed to be related to liver fat content. Quantification of metabolites in the liver revealed no differences between the fish groups while plasma metabolites involved in energy pathways such as alanine, 3-hydroxybutyrate, creatinine, serine, betaine, and choline were significantly higher in the experimental fish group. |
format |
Article in Journal/Newspaper |
author |
Mathilde Brunel Viktoriia Burkina Jana Pickova Sabine Sampels Ali A. Moazzami |
author_facet |
Mathilde Brunel Viktoriia Burkina Jana Pickova Sabine Sampels Ali A. Moazzami |
author_sort |
Mathilde Brunel |
title |
Oleaginous yeast Rhodotorula toruloides biomass effect on the metabolism of Arctic char (Salvelinus alpinus) |
title_short |
Oleaginous yeast Rhodotorula toruloides biomass effect on the metabolism of Arctic char (Salvelinus alpinus) |
title_full |
Oleaginous yeast Rhodotorula toruloides biomass effect on the metabolism of Arctic char (Salvelinus alpinus) |
title_fullStr |
Oleaginous yeast Rhodotorula toruloides biomass effect on the metabolism of Arctic char (Salvelinus alpinus) |
title_full_unstemmed |
Oleaginous yeast Rhodotorula toruloides biomass effect on the metabolism of Arctic char (Salvelinus alpinus) |
title_sort |
oleaginous yeast rhodotorula toruloides biomass effect on the metabolism of arctic char (salvelinus alpinus) |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmolb.2022.931946 https://doaj.org/article/d0b516469e314e07b85aaf758cc3eaa6 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Salvelinus alpinus |
genre_facet |
Arctic Salvelinus alpinus |
op_source |
Frontiers in Molecular Biosciences, Vol 9 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmolb.2022.931946/full https://doaj.org/toc/2296-889X 2296-889X doi:10.3389/fmolb.2022.931946 https://doaj.org/article/d0b516469e314e07b85aaf758cc3eaa6 |
op_doi |
https://doi.org/10.3389/fmolb.2022.931946 |
container_title |
Frontiers in Molecular Biosciences |
container_volume |
9 |
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1766330652188213248 |