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Composition of bovine milk fat globules by confocal Raman microscopy
- Source :
- International Dairy Journal. 21:402-412
- Publication Year :
- 2011
- Publisher :
- Elsevier BV, 2011.
-
Abstract
- Confocal Raman microscopy was used to determine the chemical fingerprint of individual bovine milk fat globules of different sizes and from milk sourced from different breeds. No detectable level of triglycerides was found in the small milk fat globules of 1 μm diameter or less in size. These small fat globules also delivered information about the lipids of the milk fat globule membrane. In addition, the lipid composition varied according to the size of the globules with an increasing concentration of carotenoids and decreasing level of unsaturation with increasing diameter. The carotenoids content also varied according to the breed origin of the milk, with Jersey milk fat globules containing more carotenoids than the Friesian-Jersey milk fat globules. The results suggest that the milk fat globules have different properties according to their size.
- Subjects :
- chemistry.chemical_classification
Degree of unsaturation
Bovine milk
Chemistry
Confocal
food and beverages
Applied Microbiology and Biotechnology
symbols.namesake
fluids and secretions
Microscopy
symbols
Composition (visual arts)
Globules of fat
Food science
Raman spectroscopy
Carotenoid
Food Science
Subjects
Details
- ISSN :
- 09586946
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- International Dairy Journal
- Accession number :
- edsair.doi...........8d864de9ab997d8cb7c9781d9f2e1851