Characterization of sodium caseinate/Hydroxypropyl methylcellulose concentrated emulsions: Effect of mixing ratio, concentration and wax addition.

Abstract:

:The effects of mixing ratio (1:1, 2:1 and 4:1 sodium caseinate: Hydroxypropyl methylcellulose, CN:HPMC), HPMC concentration (0, 0.6 and 1.2 wt%), CN concentration (0, 1.25 and 2.5) and beeswax addition (3%) on the physical stability of concentrated O/W emulsions (φoil = 0.6) were investigated. The emulsion stability, particle size distribution, microstructure and rheological properties were measured. The results showed that emulsion stability was significantly improved with increasing HPMC concentration (pvalue < 0.05). The samples with the highest and the lowest biopolymers concentration at mixing ratio of 2:1 had the highest and the lowest ESI (98% and 48%), respectively. In addition, the most stable sample had the smallest volume mean diameter and approximately desirable rheological properties. The beeswax addition considerably improved rheological properties whereas increased droplets diameter and emulsion instability. In summary, concentrated emulsions stabilized by caseinate/Hydroxypropyl methylcellulose complex may be useful for application in particular food such as heavy cream, mayonnaise, oleogels and pharmaceutical products.

journal_name

Int J Biol Macromol

authors

Alizadeh L,Abdolmaleki K,Nayebzadeh K,Bahmaei M

doi

10.1016/j.ijbiomac.2019.01.208

subject

Has Abstract

pub_date

2019-05-01 00:00:00

pages

796-803

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(18)35091-8

journal_volume

128

pub_type

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