Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Effect of different polysaccharides on swelling of composite whey protein hydrogels: A low field (LF) NMR relaxometry study
Date
2017-06-01
Author
Özel, Barış
KILERCIOGLU, Mete
GRUNIN, Leonid
Öztop, Halil Mecit
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
225
views
0
downloads
Cite This
Hydrogels are usually prepared from hydrophilic polymers and when different types of polymers are blended or emulsified with an oil phase the resulting gel is usually known as a composite gel. The objective of this study was to analyze the water uptake characteristics of whey protein-polysaccharide containing composite hydrogels. Composite and composite emulsion gels were formulated in this study using whey protein, xanthan (XN), pectin (PC), alginate (AL), and sunflower oil. Water absorption of hydrogels was studied using Nuclear Magnetic Resonance (NMR) relaxometry through transverse relaxation time (T-2) measurements, and Non-Negative-Least-Square (NNLS) analysis. Swelling ratios (SR) of different gels were determined. Swelling of the gels was also evaluated mathematically and water uptake of hydrogels was explained by the power law model and diffusion rate constants based on power law model were determined. Results showed that NMR relaxometry could be used to differentiate water uptake mechanisms of composite hydrogels.
Subject Keywords
Composite Hydrogel
,
Emulsion Gel
,
NMR Relaxometry
,
Swelling
,
Whey Protein Isolate
URI
https://hdl.handle.net/11511/31470
Journal
JOURNAL OF FOOD PROCESS ENGINEERING
DOI
https://doi.org/10.1111/jfpe.12465
Collections
Graduate School of Natural and Applied Sciences, Article
Suggestions
OpenMETU
Core
Effect of pectin methyl esterase (PME) and CaCl2 infusion on the cell integrity of fresh-cut and frozen-thawed mangoes: An NMR relaxometry study
Kırtıl, Emrah; Öztop, Halil Mecit; Barrett, Diane M.; McCarthy, Michael J. (Elsevier BV, 2014-12)
This study describes the use of Nuclear Magnetic Resonance (NMR) relaxometry to understand the effect of pectin methyl esterase (PME) + CaCl2 infusion under different conditions on cell integrity of fresh-cut and frozen-thawed mangoes. Infusion experiments were performed at: atmospheric pressure, vacuum conditions of 50 kPa and 10 kPa. For NMR relaxometry experiments T-2 (spin-spin relaxation time), T-1 (spin-lattice-relaxation times) and 2D T-1-T-2 experiments were performed. Results showed that, as the se...
Effect of preparation parameters on the performance of conductive composite gas separation membranes
Gulsen, D; Hacarloglu, P; Toppare, Levent Kamil; Yılmaz, Levent (2001-02-15)
Mixed matrix composite membranes of a conducting polymer, polypyrrole (PPy), and an insulating polymer, polybisphenol-A-carbonate (PC) were prepared by a combined in-situ polymerization and solvent evaporation. Mixed matrix composite membranes were synthesized to combine the good gas transport properties of conductive polymer, PPy, with good mechanical properties of PC.
Effect of synthesis media pH and gel separation technique on properties of copper incorporated SBA-15 catalyst
Akti, Filiz; Balci, Suna; Doğu, Timur (2019-10-01)
Cu-SBA-15 catalysts were synthesized hydrothermally under acidic and slightly higher acidic conditions via solid separation by either gel filtration or evaporation. XRD (X-ray diffraction) patterns and HRTEM (high resolution transmission electron microscopy) images showed that metal loading caused little changes in the ordered structure of SBA-15. Characteristic structural SBA-15's bonds and acid sites were observed in FTIR (Fourier transform infrared) spectrums and synthesis under high pH was created chang...
Effect of d-psicose substitution on gelatin based soft candies: A TD-NMR study
Pocan, Pelin; İlhan, Esmanur; Öztop, Halil Mecit (Wiley, 2019-09-01)
Confectionary gels are considered as composite gel systems composed of high amount of sugar and gelling agent such as gelatin or starch. d-Psicose is classified as a type of rare sugar, which is a C-3 epimer of fructose and has 70% of the sweetness of sucrose with a caloric value of 0.39 kcal/g. Utilization of d-psicose in food products is gaining particular interest due to its low caloric value. In this study, gelatin-based soft candies were formulated, and the effect of d-psicose substitution was explored...
Effect of impact modifier on the properties of poly (ethylene terephthalate)-organoclay nanocomposites
Yılmazer, Ülkü; Alyamac, Elif (2006-11-30)
The effects of component concentrations and addition order of the components, on the final properties of ternary nanocomposites composed of amorphous poly (ethylene terephthalate) matrix, organically modified clay, and an ethylene / methyl acrylate / glycidyl methacrylate (E-MAGMA) terpolymer were studied. All formulations were prepared by melt compounding of the components with a two-step mixing procedure in a corotating twin-screw extruder. Considering the X-Ray Diffraction, SEM, impact and strain at brea...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
B. Özel, M. KILERCIOGLU, L. GRUNIN, and H. M. Öztop, “Effect of different polysaccharides on swelling of composite whey protein hydrogels: A low field (LF) NMR relaxometry study,”
JOURNAL OF FOOD PROCESS ENGINEERING
, pp. 0–0, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31470.