Seasonal variation in the positional distribution of fatty acids in bovine milk fat
The aim of this study was to determine the seasonal variation in the positional distribution of fatty acids (FA) in bovine milk fat. Bovine milk samples were collected from May 2017 to April 2018 in the Netherlands, and the FA composition in the sn-2 position was determined by using sn-1(3)-selectiv...
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Online Access: | https://research.wur.nl/en/publications/seasonal-variation-in-the-positional-distribution-of-fatty-acids- https://doi.org/10.3168/jds.2021-20570 |
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ftunivwagenin:oai:library.wur.nl:wurpubs/588064 2024-04-28T08:00:32+00:00 Seasonal variation in the positional distribution of fatty acids in bovine milk fat Yener, Sine Pacheco-Pappenheim, Sara Heck, Jeroen M.L. van Valenberg, Hein J.F. 2021 application/pdf https://research.wur.nl/en/publications/seasonal-variation-in-the-positional-distribution-of-fatty-acids- https://doi.org/10.3168/jds.2021-20570 en eng https://edepot.wur.nl/555404 https://research.wur.nl/en/publications/seasonal-variation-in-the-positional-distribution-of-fatty-acids- doi:10.3168/jds.2021-20570 Wageningen University & Research Journal of Dairy Science 104 (2021) 12 ISSN: 0022-0302 Candida antarctica lipase cow milk fat regiospecificity sn-2 position triacylglycerol Article/Letter to editor 2021 ftunivwagenin https://doi.org/10.3168/jds.2021-20570 2024-04-03T15:01:56Z The aim of this study was to determine the seasonal variation in the positional distribution of fatty acids (FA) in bovine milk fat. Bovine milk samples were collected from May 2017 to April 2018 in the Netherlands, and the FA composition in the sn-2 position was determined by using sn-1(3)-selective transesterification of Candida antarctica lipase B. The majority of the FA showed significant variation at sn-2 and sn-1(3) positions between different seasons. The seasonal variation in sn-2 position was higher than the sn-1(3) positions. Parallel to the changes in the diet of the cows throughout a year, we observed an increase in blood-derived FA (i.e. C18:0, C18:1 cis-9) concentrations and a decrease in de novo–synthesized FA during summer. In winter, more saturated FA were esterified in sn-2 position of milk fat. Highest concentrations of palmitic acid, C16:0, was observed in sn-2 position in winter, whereas the amount of unsaturated FA at this position was highest in summer. These results showed that the FA compositions in different regiospecific positions changed due to season; however, the proportions of a specific FA within the 3 positions of the triacylglycerols in milk fat did not change upon seasonal variation. Article in Journal/Newspaper Antarc* Antarctica Wageningen UR (University & Research Centre): Digital Library Journal of Dairy Science |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
Candida antarctica lipase cow milk fat regiospecificity sn-2 position triacylglycerol |
spellingShingle |
Candida antarctica lipase cow milk fat regiospecificity sn-2 position triacylglycerol Yener, Sine Pacheco-Pappenheim, Sara Heck, Jeroen M.L. van Valenberg, Hein J.F. Seasonal variation in the positional distribution of fatty acids in bovine milk fat |
topic_facet |
Candida antarctica lipase cow milk fat regiospecificity sn-2 position triacylglycerol |
description |
The aim of this study was to determine the seasonal variation in the positional distribution of fatty acids (FA) in bovine milk fat. Bovine milk samples were collected from May 2017 to April 2018 in the Netherlands, and the FA composition in the sn-2 position was determined by using sn-1(3)-selective transesterification of Candida antarctica lipase B. The majority of the FA showed significant variation at sn-2 and sn-1(3) positions between different seasons. The seasonal variation in sn-2 position was higher than the sn-1(3) positions. Parallel to the changes in the diet of the cows throughout a year, we observed an increase in blood-derived FA (i.e. C18:0, C18:1 cis-9) concentrations and a decrease in de novo–synthesized FA during summer. In winter, more saturated FA were esterified in sn-2 position of milk fat. Highest concentrations of palmitic acid, C16:0, was observed in sn-2 position in winter, whereas the amount of unsaturated FA at this position was highest in summer. These results showed that the FA compositions in different regiospecific positions changed due to season; however, the proportions of a specific FA within the 3 positions of the triacylglycerols in milk fat did not change upon seasonal variation. |
format |
Article in Journal/Newspaper |
author |
Yener, Sine Pacheco-Pappenheim, Sara Heck, Jeroen M.L. van Valenberg, Hein J.F. |
author_facet |
Yener, Sine Pacheco-Pappenheim, Sara Heck, Jeroen M.L. van Valenberg, Hein J.F. |
author_sort |
Yener, Sine |
title |
Seasonal variation in the positional distribution of fatty acids in bovine milk fat |
title_short |
Seasonal variation in the positional distribution of fatty acids in bovine milk fat |
title_full |
Seasonal variation in the positional distribution of fatty acids in bovine milk fat |
title_fullStr |
Seasonal variation in the positional distribution of fatty acids in bovine milk fat |
title_full_unstemmed |
Seasonal variation in the positional distribution of fatty acids in bovine milk fat |
title_sort |
seasonal variation in the positional distribution of fatty acids in bovine milk fat |
publishDate |
2021 |
url |
https://research.wur.nl/en/publications/seasonal-variation-in-the-positional-distribution-of-fatty-acids- https://doi.org/10.3168/jds.2021-20570 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Journal of Dairy Science 104 (2021) 12 ISSN: 0022-0302 |
op_relation |
https://edepot.wur.nl/555404 https://research.wur.nl/en/publications/seasonal-variation-in-the-positional-distribution-of-fatty-acids- doi:10.3168/jds.2021-20570 |
op_rights |
Wageningen University & Research |
op_doi |
https://doi.org/10.3168/jds.2021-20570 |
container_title |
Journal of Dairy Science |
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