Milk triglycerides from dairy cows abomasally infused with increasing amounts of high-oleic sunflower fatty acids
ABSTRACT: The triglyceride composition of milk fat largely determines the manufacturing characteristics of products containing milk fat. Increasing oleic acid content of milk fat might be desirable for human nutrition and also for butter and whipping cream, among other product applications. The obje...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-04-01
|
| Series: | Journal of Dairy Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0022030223000395 |
| _version_ | 1797854573334888448 |
|---|---|
| author | G. Ortiz Gonzalez E.G. Perkins J.K. Drackley |
| author_facet | G. Ortiz Gonzalez E.G. Perkins J.K. Drackley |
| author_sort | G. Ortiz Gonzalez |
| collection | DOAJ |
| description | ABSTRACT: The triglyceride composition of milk fat largely determines the manufacturing characteristics of products containing milk fat. Increasing oleic acid content of milk fat might be desirable for human nutrition and also for butter and whipping cream, among other product applications. The objective of this research was to determine the effects of increasing intestinally available oleic acid (provided via abomasal infusion) on the profile of milk triglycerides. A control and 4 increasing doses of free fatty acids from high oleic sunflower oil (HOSFA) were infused into the abomasum of 4 lactating dairy cows in a changeover experimental design with periods of 7 d. Treatments were (1) control (no fatty acids infused), (2) HOSFA (250 g/d), (3) HOSFA (500 g/d), (4) HOSFA (750 g/d), and (5) HOSFA (1,000 g/d). All treatments included meat solubles and Tween 80 as emulsifiers. Infusion of HOSFA increased oleic acid and decreased short- and medium-chain fatty acids in milk fat. Statistical analysis of results showed linear changes in most of the milk triglycerides analyzed. The most significant changes as the result of increasing HOSFA infusion were a decrease in triglycerides with saturated fatty acids (butyrin-caprylin-palmitin, butyrin-laurin-olein, butyrin-myristin-palmitin, butyrin-palmitin-palmitin, caproin-myristin-palmitin, butyrin-palmitin-stearin, caproin-palmitin-palmitin) and an increase in dioleyl triglycerides (with butyric, lauric, myristic and palmitic acids) and triolein. The synthesis of triglyceride is position-specific and does not follow a random distribution model. |
| first_indexed | 2024-04-09T20:09:22Z |
| format | Article |
| id | doaj.art-05898744460747e0ad546cc28fbd3197 |
| institution | Directory Open Access Journal |
| issn | 0022-0302 |
| language | English |
| last_indexed | 2024-04-09T20:09:22Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Dairy Science |
| spelling | doaj.art-05898744460747e0ad546cc28fbd31972023-04-01T08:40:48ZengElsevierJournal of Dairy Science0022-03022023-04-01106424282437Milk triglycerides from dairy cows abomasally infused with increasing amounts of high-oleic sunflower fatty acidsG. Ortiz Gonzalez0E.G. Perkins1J.K. Drackley2Department of Food Science and Human Nutrition, University of Illinois, Urbana 61801Department of Food Science and Human Nutrition, University of Illinois, Urbana 61801Department of Animal Sciences, University of Illinois, Urbana 61801; Corresponding authorABSTRACT: The triglyceride composition of milk fat largely determines the manufacturing characteristics of products containing milk fat. Increasing oleic acid content of milk fat might be desirable for human nutrition and also for butter and whipping cream, among other product applications. The objective of this research was to determine the effects of increasing intestinally available oleic acid (provided via abomasal infusion) on the profile of milk triglycerides. A control and 4 increasing doses of free fatty acids from high oleic sunflower oil (HOSFA) were infused into the abomasum of 4 lactating dairy cows in a changeover experimental design with periods of 7 d. Treatments were (1) control (no fatty acids infused), (2) HOSFA (250 g/d), (3) HOSFA (500 g/d), (4) HOSFA (750 g/d), and (5) HOSFA (1,000 g/d). All treatments included meat solubles and Tween 80 as emulsifiers. Infusion of HOSFA increased oleic acid and decreased short- and medium-chain fatty acids in milk fat. Statistical analysis of results showed linear changes in most of the milk triglycerides analyzed. The most significant changes as the result of increasing HOSFA infusion were a decrease in triglycerides with saturated fatty acids (butyrin-caprylin-palmitin, butyrin-laurin-olein, butyrin-myristin-palmitin, butyrin-palmitin-palmitin, caproin-myristin-palmitin, butyrin-palmitin-stearin, caproin-palmitin-palmitin) and an increase in dioleyl triglycerides (with butyric, lauric, myristic and palmitic acids) and triolein. The synthesis of triglyceride is position-specific and does not follow a random distribution model.http://www.sciencedirect.com/science/article/pii/S0022030223000395triglycerideabomasal infusionmilk fat synthesisoleic acid |
| spellingShingle | G. Ortiz Gonzalez E.G. Perkins J.K. Drackley Milk triglycerides from dairy cows abomasally infused with increasing amounts of high-oleic sunflower fatty acids Journal of Dairy Science triglyceride abomasal infusion milk fat synthesis oleic acid |
| title | Milk triglycerides from dairy cows abomasally infused with increasing amounts of high-oleic sunflower fatty acids |
| title_full | Milk triglycerides from dairy cows abomasally infused with increasing amounts of high-oleic sunflower fatty acids |
| title_fullStr | Milk triglycerides from dairy cows abomasally infused with increasing amounts of high-oleic sunflower fatty acids |
| title_full_unstemmed | Milk triglycerides from dairy cows abomasally infused with increasing amounts of high-oleic sunflower fatty acids |
| title_short | Milk triglycerides from dairy cows abomasally infused with increasing amounts of high-oleic sunflower fatty acids |
| title_sort | milk triglycerides from dairy cows abomasally infused with increasing amounts of high oleic sunflower fatty acids |
| topic | triglyceride abomasal infusion milk fat synthesis oleic acid |
| url | http://www.sciencedirect.com/science/article/pii/S0022030223000395 |
| work_keys_str_mv | AT gortizgonzalez milktriglyceridesfromdairycowsabomasallyinfusedwithincreasingamountsofhigholeicsunflowerfattyacids AT egperkins milktriglyceridesfromdairycowsabomasallyinfusedwithincreasingamountsofhigholeicsunflowerfattyacids AT jkdrackley milktriglyceridesfromdairycowsabomasallyinfusedwithincreasingamountsofhigholeicsunflowerfattyacids |