Partitioning of the milk fat globule membrane between buttermilk and butter serum is determined by the thermal behaviour of the fat globules

Sanna P. Hokkanen*, Riitta Partanen, Annamari Jukkola, Alexander D. Frey, Orlando Rojas Gaona

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Isolation of the industrially interesting milk fat globule membrane (MFGM) components from dairy streams is challenging, and a full exploitation of their benefits can be gained by better understanding of the behaviour of the fat globule membrane fraction during milk fat processing. In this study, microfiltration of the cream before churning and the comprehensive compositional analysis of the process streams revealed new insights on MFGM partitioning during the phase inversion in butter making. After removal of the smallest fat globules by microfiltration, a reduced phospholipid content was reflected in the buttermilk, but not in the butter serum. Regardless of the cream washing, buttermilk and butter serum lipids were different in PL-to-fat ratio, phospholipid composition, degree of unsaturation and melting behaviour. We suggest that partitioning of the MFGM fraction between butter and buttermilk is a direct result of the physico-chemical properties of the fat globules, partly related to the globule size.
Original languageEnglish
Article number104863
Number of pages10
JournalInternational Dairy Journal
Volume112
Early online date8 Sep 2020
DOIs
Publication statusPublished - Jan 2021
MoE publication typeA1 Journal article-refereed

Fingerprint Dive into the research topics of 'Partitioning of the milk fat globule membrane between buttermilk and butter serum is determined by the thermal behaviour of the fat globules'. Together they form a unique fingerprint.

Cite this