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High hydrostatic pressure induced changes on palm stearin emulsions

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Author
Sevdin, Sezen
Özel, Barış
Yücel, Umut
Öztop, Mecit Halil
Type
Article
Date
2018-07
Language
en_US
Metadata
Show full item record
Abstract
Emulsions are thermodynamically unstable systems formed through blending of two immiscible fluids. Recent studies have shown that High Hydrostatic Pressure (HHP) can initiate or accelerate lipid crystallization in emulsions. In this study, the effect of HHP on lipid crystallization was examined. Emulsion samples were prepared with palm stearin (PS) as the oil phase and sodium caseinate (SC) as the emulsifier and they were pressurized at 100 and 500 MPa at 10, 20 and 40 degrees C for 15 min. In order to determine the crystal structure of the emulsions, differential scanning calorimeter (DSC) was used and the change in the crystal morphology during 28 day-storage at 4 degrees C was observed. Nuclear Magnetic Resonance Relaxometry (NMR) experiments were also conducted and transverse relaxation time (T-2) and self-diffusion coefficient (SDC) values showed a trend to follow polymorphic changes of lipid crystals. Results showed that pressure and storage time both had significant effects (p < 0.05) on the crystal structures of emulsions. (C) 2017 Elsevier Ltd. All rights reserved.
Subject
High hydrostatic pressure
Lipid crystallization
Transverse relaxation time
Self-diffusion coefficient
Storage time
Dispersed Phase Crystallization
In-Water Emulsions
Fat-Content
Oil
Nmr
Stability
Behavior
Spectroscopy
Lecithin
URI
https://doi.org/10.1016/j.jfoodeng.2017.10.007
https://hdl.handle.net/11413/2384
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  • Makaleler / Articles [11]
  • Scopus Publications [724]
  • WoS Publications [1016]

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İstanbul Kültür University

Hakkında |Politika | Kütüphane | İletişim | Send Feedback | Admin

Istanbul Kültür University, Ataköy Campus E5 Karayolu Üzeri Bakırköy 34158, İstanbul / TURKEY
Copyright © İstanbul Kültür University

Creative Commons Lisansı
IKU Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

Designed by  UNIREPOS