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...
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ftslunivuppsala:oai:pub.epsilon.slu.se:28861 2023-05-15T14:25:18+02:00 Oleaginous yeast Rhodotorula toruloides biomass effect on the metabolism of Arctic char (Salvelinus alpinus) Brunel, Mathilde Burkina, Viktoriia Pickova, Jana Sampels, Sabine Moazzami, Ali 2022 application/pdf https://pub.epsilon.slu.se/28861/ https://pub.epsilon.slu.se/28861/1/brunel-m-et-al-20220915.pdf en eng eng https://pub.epsilon.slu.se/28861/1/brunel-m-et-al-20220915.pdf Brunel, Mathilde and Burkina, Viktoriia and Pickova, Jana and Sampels, Sabine and Moazzami, Ali (2022). Oleaginous yeast Rhodotorula toruloides biomass effect on the metabolism of Arctic char (Salvelinus alpinus). Frontiers in Molecular Biosciences. 9 , 931946 [Research article] Fish and Aquacultural Science Research article NonPeerReviewed 2022 ftslunivuppsala 2022-09-22T16:13:51Z 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 Arctic Salvelinus alpinus Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive Arctic |
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Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
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ftslunivuppsala |
language |
English |
topic |
Fish and Aquacultural Science |
spellingShingle |
Fish and Aquacultural Science Brunel, Mathilde Burkina, Viktoriia Pickova, Jana Sampels, Sabine Moazzami, Ali Oleaginous yeast Rhodotorula toruloides biomass effect on the metabolism of Arctic char (Salvelinus alpinus) |
topic_facet |
Fish and Aquacultural Science |
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 |
Brunel, Mathilde Burkina, Viktoriia Pickova, Jana Sampels, Sabine Moazzami, Ali |
author_facet |
Brunel, Mathilde Burkina, Viktoriia Pickova, Jana Sampels, Sabine Moazzami, Ali |
author_sort |
Brunel, Mathilde |
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) |
publishDate |
2022 |
url |
https://pub.epsilon.slu.se/28861/ https://pub.epsilon.slu.se/28861/1/brunel-m-et-al-20220915.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Salvelinus alpinus |
genre_facet |
Arctic Arctic Salvelinus alpinus |
op_relation |
https://pub.epsilon.slu.se/28861/1/brunel-m-et-al-20220915.pdf Brunel, Mathilde and Burkina, Viktoriia and Pickova, Jana and Sampels, Sabine and Moazzami, Ali (2022). Oleaginous yeast Rhodotorula toruloides biomass effect on the metabolism of Arctic char (Salvelinus alpinus). Frontiers in Molecular Biosciences. 9 , 931946 [Research article] |
_version_ |
1766297733380964352 |