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Recovery of milk fat globule membrane (MFGM) from buttermilk: effect of Ca-binding salts

Published online by Cambridge University Press:  23 August 2019

Vitaly L. Spitsberg ,
Liza Ivanov  and
Vladimir Shritz
Vitaly L. Spitsberg*
Affiliation:
Biovita Technologies, Bat Yam, Israel
Liza Ivanov
Affiliation:
AstraZeneca, Raanana, Israel
Vladimir Shritz
Affiliation:
Baemek Advanced Technology, Afula, Israel
*
Author for correspondence: Vitaly L. Spitsberg, Email: vspits20@gmail.com
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Abstract

In this Research Communication we present a study of the effect of Ca-binding salts on the recovery of milk fat globule membrane (MFGM) from buttermilk. Sodium phosphate buffer was used for the purpose of MFGM recovery from buttermilk for the first time and we showed that 0.1 M buffer at pH 7.2 was the most effective for the recovery of MFGM. The fact of high efficacy of sodium phosphate buffer in recovery of MFGM from buttermilk allowed us to suggest that MFGM in buttermilk is present in association with casein through Ca- bridges formed between phospholipids of MFGM and phosphate groups of casein, primarily with k-casein as the peripheral protein of casein micelles.

Keywords

Buttermilkmilk fat globule membranephosphate buffer
Type
Research Article
Information
Journal of Dairy Research , Volume 86 , Issue 3 , August 2019 , pp. 374 - 376
Copyright
Copyright © Hannah Dairy Research Foundation 2019 

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